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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.495 by root, Tue Nov 10 04:38:45 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 ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
20	use Digest::MD5;	58	use Digest::MD5;
21	use Fcntl;	59	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	60	use YAML::XS ();
		61	use IO::AIO ();
24	use Time::HiRes;	62	use Time::HiRes;
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		83
35	our %COMMAND = ();	84	our %COMMAND = ();
36	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
		86
		87	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
		90	our %EXT_CORO = (); # coroutines bound to extensions
		91	our %EXT_MAP = (); # pluggable maps
38		92
		93	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	94	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
41		97
42	our $TICK = MAX_TIME * 1e-6;	98	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103	our $LOCALDIR = localdir;
		104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		107	our $RANDOMDIR = "$LOCALDIR/random";
		108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
		113
		114	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	116	our $NEXT_TICK;
45	our $NOW;	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
		121	our $BDB_TRICKLE_WATCHER;
		122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
46		125
47	our %CFG;	126	our %CFG;
48		127
49	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
51		131
52	our %MAP; # all maps	132	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	133	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	134	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	135
		136	# used to convert map paths into valid unix filenames by replacing / by ∕
		137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
56		148
57	binmode STDOUT;	149	binmode STDOUT;
58	binmode STDERR;	150	binmode STDERR;
59		151
60	# read virtual server time, if available	152	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
65	}	157	}
66		158
67	mkdir cf::localdir;	159	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		160
73	# a special map that is always available	161	mkdir $_
74	our $LINK_MAP;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		163
75	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
		165
		166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		178
77	#############################################################################	179	#############################################################################
78		180
79	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
80		182
…		…
87	=item $cf::RUNTIME	189	=item $cf::RUNTIME
88		190
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	191	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	192	every server tick.
91		193
92	=item $cf::LIBDIR	194	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		195	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		196	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		197
94	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	199	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		200	unique-items directory, player file directory, random maps directory and
		201	database environment.
96		202
97	=item $cf::NOW	203	=item $cf::NOW
98		204
99	The time of the last (current) server tick.	205	The time of the last (current) server tick.
100		206
101	=item $cf::TICK	207	=item $cf::TICK
102		208
103	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
104		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
105	=item %cf::CFG	221	=item %cf::CFG
106		222
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	224	from wherever your confdir points to.
109		225
		226	=item cf::wait_for_tick, cf::wait_for_tick_begin
		227
		228	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		229	returns directly I<after> the tick processing (and consequently, can only wake one process
		230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
110	=back	244	=back
111		245
112	=cut	246	=cut
113		247
114	BEGIN {	248	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	249	my $msg = join "", @_;
117	utf8::encode $msg;
118		250
119	$msg .= "\n"	251	$msg .= "\n"
120	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
121		253
		254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		255
122	LOG llevError, "cfperl: $msg";	256	LOG llevError, $msg;
123	};	257	};
124	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
125		272
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		280
133	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	282	# within the Safe compartment.
135	for my $pkg (qw(	283	for my $pkg (qw(
136	cf::global cf::attachable	284	cf::global cf::attachable
137	cf::object cf::object::player	285	cf::object cf::object::player
138	cf::client cf::player	286	cf::client cf::player
139	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
140	cf::map cf::party cf::region	289	cf::party cf::region
141	)) {	290	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	292	}
145		293
146	$Event::DIED = sub {	294	$EV::DIED = sub {
147	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
148	};	296	};
149		297
150	my %ext_pkg;	298	#############################################################################
151	my @exts;
152	my @hook;
153		299
154	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
155		301
156	=over 4	302	=over 4
157		303
158	=cut	304	=item dumpval $ref
159		305
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	306	=cut
161		307
		308	sub dumpval {
		309	eval {
		310	local $SIG{__DIE__};
		311	my $d;
		312	if (1) {
		313	$d = new Data::Dumper([$_[0]], ["*var"]);
		314	$d->Terse(1);
		315	$d->Indent(2);
		316	$d->Quotekeys(0);
		317	$d->Useqq(1);
		318	#$d->Bless(...);
		319	$d->Seen($_[1]) if @_ > 1;
		320	$d = $d->Dump();
		321	}
		322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		323	$d
		324	} || "[unable to dump $_[0]: '$@']";
		325	}
		326
162	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
163		328
164	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
165		330
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
174		332
175	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
176		334
177	=cut	335	=cut
178		336
179	sub to_json($) {	337	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		338
184	=item my $guard = cf::guard { BLOCK }	339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
185		341
186	Run the given callback when the guard object gets destroyed (useful for	342	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		343
189	You can call C<< ->cancel >> on the guard object to stop the block from	344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	345	but I<before> the server starts ticking again.
191		346
192	=cut	347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
193		349
194	sub guard(&) {	350	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		351
198	sub cf::guard::cancel {	352	sub post_init(&) {
199	${$_[0]} = sub { };	353	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	354	}
205		355
206	=item cf::lock_wait $string	356	=item cf::lock_wait $string
207		357
208	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
209		359
210	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
211		361
212	Wait until the given lock is available and then acquires it and returns	362	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,	363	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	364	for example when the coroutine gets canceled), the lock is automatically
215	returned.	365	returned.
216		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
217	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
219		372
220	=cut	373	=item $locked = cf::lock_active $string
221		374
222	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
223		380
224	sub lock_wait($) {	381	sub lock_wait($) {
225	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	383	}
233		384
234	sub lock_acquire($) {	385	sub lock_acquire($) {
235	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
236		388
237	# wait, to be sure we are not locked	389	sub lock_active($) {
238	lock_wait $key;	390	$LOCKS->count ($_[0]) < 1
		391	}
239		392
240	$LOCK{$key} = [];	393	sub freeze_mainloop {
		394	tick_inhibit_inc;
241		395
242	cf::guard {	396	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	397	}
244	$_->ready for @{ delete $LOCK{$key} };	398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
245	}	457	}
		458	};
		459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
246	}	472	}
247		473
248	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
249		475
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	476	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	477	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		478	thing you are allowed to do is call C<prio> on it.
252		479
253	=cut	480	=cut
254		481
255	sub async(&) {	482	BEGIN { *async = \&Coro::async_pool }
256	my ($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	$guard
270	}
271		483
272	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
273		485
274	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
277		490
278	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
281	fast or be very important.	494	fast or be very important.
…		…
284		497
285	sub sync_job(&) {	498	sub sync_job(&) {
286	my ($job) = @_;	499	my ($job) = @_;
287		500
288	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
289	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
291		506
292	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	508
294	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
295		510
296	my $busy = 1;	511	my $busy = 1;
297	my @res;	512	my @res;
298		513
299	(Coro::async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	516	@res = eval { $job->() };
301	warn $@ if $@;	517	warn $@ if $@;
302	undef $busy;	518	undef $busy;
303	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
304		520
305	while ($busy) {	521	while ($busy) {
		522	if (Coro::nready) {
306	Coro::cede_notself;	523	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
308	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
309		532
310	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
311	} else {	534	} else {
312	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
313		536
314	$job->()	537	$job->()
315	}	538	}
316	}	539	}
317		540
318	=item $coro = cf::coro { BLOCK }	541	=item $coro = cf::async_ext { BLOCK }
319		542
320	Creates and returns a new coro. This coro is automcatially being canceled	543	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	544	extension calling this is being unloaded.
322		545
323	=cut	546	=cut
324		547
325	sub coro(&) {	548	sub async_ext(&) {
326	my $cb = shift;	549	my $cb = shift;
327		550
328	my $coro = &cf::async ($cb);	551	my $coro = &Coro::async ($cb);
329		552
330	$coro->on_destroy (sub {	553	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	554	delete $EXT_CORO{$coro+0};
332	});	555	});
333	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
334		557
335	$coro	558	$coro
336	}	559	}
337		560
338	sub write_runtime {	561	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		562
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	Executes the given code block with the given arguments in a seperate
342	or return;	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
343		567
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	568	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		569
348	aio_fsync $fh	570	sub fork_call(&@) {
349	and return;	571	my ($cb, @args) = @_;
350		572
351	close $fh	573	# we seemingly have to make a local copy of the whole thing,
352	or return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
353		576
354	aio_rename "$runtime~", $runtime	577	my @res = Coro::Util::fork_eval {
355	and return;	578	reset_signals;
		579	&$cb
		580	}, @args;
356		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
357	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	748	}
359		749
360	=back	750	=back
361		751
362	=cut	752	=cut
363		753
364	#############################################################################	754	#############################################################################
365		755
366	package cf::path;
367
368	sub new {
369	my ($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	756	=head2 ATTACHABLE OBJECTS
487		757
488	Many objects in crossfire are so-called attachable objects. That means you can	758	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")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
491		761
492	In the following description, CLASS can be any of C<global>, C<object>	762	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	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	764	Deliantra).
495		765
496	=over 4	766	=over 4
497		767
498	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
499		769
…		…
543	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
544		814
545	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
547		817
548	Some classes such as crossfire maps and objects can specify attachments	818	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.	819	that are attached at load/instantiate time, thus the need for a name.
550		820
551	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
552		822
553	=over 4	823	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	883	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	884	our @CB_MAP = ();
615		885
616	my %attachment;	886	my %attachment;
617		887
		888	sub cf::attachable::thawer_merge {
		889	# simply override everything except _meta
		890	local $_[0]{_meta};
		891	%{$_[0]} = %{$_[1]};
		892	}
		893
618	sub _attach_cb($$$$) {	894	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	895	my ($registry, $event, $prio, $cb) = @_;
620		896
621	use sort 'stable';	897	use sort 'stable';
622		898
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
657		933
658	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		938
663	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	940	my $pkg = shift @arg;
665		941
666	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
696	}	972	}
697		973
698	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
699	} else {	975	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	977	}
702		978
703	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
704	}	980	}
705		981
…		…
707	if (ref $_[0]) {	983	if (ref $_[0]) {
708	_object_attach @_;	984	_object_attach @_;
709	} else {	985	} else {
710	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
711	}	987	}
		988	_recalc_want;
712	};	989	};
713		990
714	# all those should be optimised	991	# all those should be optimised
715	sub cf::attachable::detach {	992	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
720	reattach ($obj);	997	reattach ($obj);
721	} else {	998	} else {
722	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
723	}	1000	}
		1001	_recalc_want;
724	};	1002	};
725		1003
726	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
728		1006
…		…
743	";	1021	";
744	die if $@;	1022	die if $@;
745	}	1023	}
746		1024
747	our $override;	1025	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1027
750	sub override {	1028	sub override {
751	$override = 1;	1029	$override = 1;
752	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
753	}	1031	}
754		1032
755	sub do_invoke {	1033	sub do_invoke {
756	my $event = shift;	1034	my $event = shift;
757	my $callbacks = shift;	1035	my $callbacks = shift;
758		1036
759	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
760		1038
761	local $override;	1039	local $override;
762		1040
763	for (@$callbacks) {	1041	for (@$callbacks) {
764	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
773	}	1051	}
774		1052
775	0	1053	0
776	}	1054	}
777		1055
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1057
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1059
782	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
783		1061
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	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	1063	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1065
788	=back	1066	=back
789		1067
790	=cut	1068	=cut
791		1069
792	#############################################################################	1070	#############################################################################
793	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
794		1114
795	sub reattach {	1115	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1117	my ($obj) = @_;
		1118
		1119	# no longer needed after getting rid of delete_package?
		1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1121
799	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
800		1123
801	@$registry = ();	1124	@$registry = ();
802		1125
…		…
817	cf::attachable->attach (	1140	cf::attachable->attach (
818	prio => -1000000,	1141	prio => -1000000,
819	on_instantiate => sub {	1142	on_instantiate => sub {
820	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
821		1144
822	$data = from_json $data;	1145	$data = decode_json $data;
823		1146
824	for (@$data) {	1147	for (@$data) {
825	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
826		1149
827	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1166	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
845		1168
846	sync_job {	1169	sync_job {
847	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
850		1174
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1178	if ($cf::USE_FSYNC) {
		1179	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;	1180	aio_fsync $fh;
		1181	}
855	close $fh;	1182	aio_close $fh;
856		1183
857	if (@$objs) {	1184	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
		1189	if ($cf::USE_FSYNC) {
		1190	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;	1191	aio_fsync $fh;
		1192	}
863	close $fh;	1193	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
865	}	1195	}
866	} else {	1196	} else {
867	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
868	}	1198	}
869		1199
870	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1204	} else {
872	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
873	}	1206	}
874	} else {	1207	} else {
875	aio_unlink $filename;	1208	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
877	}	1210	}
878	}	1211	};
879	}	1212	}
880		1213
881	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
883		1216
…		…
895	or return;	1228	or return;
896		1229
897	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
899	or return;	1232	or return;
		1233
900	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
901	}	1236	}
902		1237
		1238	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
905	return ($data, $av);	1242	($data, $av)
906	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
907		1250
908	#############################################################################	1251	#############################################################################
909	# command handling &c	1252	# command handling &c
910		1253
911	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1268	}
926		1269
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1271
929	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
930		1277
931	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
932	called.	1279	called.
933		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
934	=cut	1292	=cut
935		1293
936	sub register_extcmd {	1294	sub register_extcmd {
937	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
938		1296
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1297	$EXTCMD{$name} = $cb;
943	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
944		1307
945	cf::player->attach (	1308	cf::player->attach (
946	on_command => sub {	1309	on_command => sub {
947	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
948		1311
…		…
956	cf::override;	1319	cf::override;
957	},	1320	},
958	on_extcmd => sub {	1321	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
960		1323
961	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1325
963	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
969	} else {	1341	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1343	}
972		1344
973	cf::override;	1345	cf::override;
974	},	1346	},
975	);	1347	);
976		1348
977	sub register {	1349	# "readahead" all extensions
978	my ($base, $pkg) = @_;	1350	sub cache_extensions {
		1351	my $grp = IO::AIO::aio_group;
979		1352
980	#TODO	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	}	1354	for (grep /\.ext$/, @{$_[0]}) {
		1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1356	}
		1357	};
982		1358
		1359	$grp
		1360	}
		1361
983	sub load_extension {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
		1366	for my $path (<$LIBDIR/*.ext>) {
		1367	next unless -r $path;
		1368
		1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
		1425	}
		1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
		1431	};
		1432	}
		1433
		1434	#############################################################################
		1435
		1436	=back
		1437
		1438	=head2 CORE EXTENSIONS
		1439
		1440	Functions and methods that extend core deliantra objects.
		1441
		1442	=cut
		1443
		1444	package cf::player;
		1445
		1446	use Coro::AIO;
		1447
		1448	=head3 cf::player
		1449
		1450	=over 4
		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
		1465
		1466	=item cf::player::find $login
		1467
		1468	Returns the given player object, loading it if necessary (might block).
		1469
		1470	=cut
		1471
		1472	sub playerdir($) {
		1473	"$PLAYERDIR/"
		1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1475	}
		1476
		1477	sub path($) {
		1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1479
		1480	(playerdir $login) . "/playerdata"
		1481	}
		1482
		1483	sub find_active($) {
		1484	$cf::PLAYER{$_[0]}
		1485	and $cf::PLAYER{$_[0]}->active
		1486	and $cf::PLAYER{$_[0]}
		1487	}
		1488
		1489	sub exists($) {
		1490	my ($login) = @_;
		1491
		1492	$cf::PLAYER{$login}
		1493	or !aio_stat path $login
		1494	}
		1495
		1496	sub find($) {
		1497	return $cf::PLAYER{$_[0]} || do {
		1498	my $login = $_[0];
		1499
		1500	my $guard = cf::lock_acquire "user_find:$login";
		1501
		1502	$cf::PLAYER{$_[0]} || do {
		1503	# rename old playerfiles to new ones
		1504	#TODO: remove when no longer required
		1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1508	aio_unlink +(playerdir $login) . "/$login.pl";
		1509
		1510	my $f = new_from_file cf::object::thawer path $login
		1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
		1518	$cf::PLAYER{$login} = $pl
		1519	}
		1520	}
		1521	}
		1522
		1523	sub save($) {
		1524	my ($pl) = @_;
		1525
		1526	return if $pl->{deny_save};
		1527
		1528	my $path = path $pl;
		1529	my $guard = cf::lock_acquire "user_save:$path";
		1530
		1531	return if $pl->{deny_save};
		1532
		1533	aio_mkdir playerdir $pl, 0770;
		1534	$pl->{last_save} = $cf::RUNTIME;
		1535
		1536	cf::get_slot 0.01;
		1537
		1538	$pl->save_pl ($path);
		1539	cf::cede_to_tick;
		1540	}
		1541
		1542	sub new($) {
		1543	my ($login) = @_;
		1544
		1545	my $self = create;
		1546
		1547	$self->ob->name ($login);
		1548	$self->{deny_save} = 1;
		1549
		1550	$cf::PLAYER{$login} = $self;
		1551
		1552	$self
		1553	}
		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
		1565	=item $pl->quit_character
		1566
		1567	Nukes the player without looking back. If logged in, the connection will
		1568	be destroyed. May block for a long time.
		1569
		1570	=cut
		1571
		1572	sub quit_character {
		1573	my ($pl) = @_;
		1574
		1575	my $name = $pl->ob->name;
		1576
		1577	$pl->{deny_save} = 1;
		1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1579
		1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
		1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1585	$pl->ns->destroy if $pl->ns;
		1586
		1587	my $path = playerdir $pl;
		1588	my $temp = "$path~$cf::RUNTIME~deleting~";
		1589	aio_rename $path, $temp;
		1590	delete $cf::PLAYER{$pl->ob->name};
		1591	$pl->destroy;
		1592
		1593	my $prefix = qr<^~\Q$name\E/>;
		1594
		1595	# nuke player maps
		1596	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1597
		1598	IO::AIO::aio_rmtree $temp;
		1599	}
		1600
		1601	=item $pl->kick
		1602
		1603	Kicks a player out of the game. This destroys the connection.
		1604
		1605	=cut
		1606
		1607	sub kick {
		1608	my ($pl, $kicker) = @_;
		1609
		1610	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1611	$pl->killer ("kicked");
		1612	$pl->ns->destroy;
		1613	}
		1614
		1615	=item cf::player::list_logins
		1616
		1617	Returns am arrayref of all valid playernames in the system, can take a
		1618	while and may block, so not sync_job-capable, ever.
		1619
		1620	=cut
		1621
		1622	sub list_logins {
		1623	my $dirs = aio_readdir $PLAYERDIR
		1624	or return [];
		1625
		1626	my @logins;
		1627
		1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
		1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1635	aio_read $fh, 0, 512, my $buf, 0 or next;
		1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
		1638
		1639	utf8::decode $login;
		1640	push @logins, $login;
		1641	}
		1642
		1643	\@logins
		1644	}
		1645
		1646	=item $player->maps
		1647
		1648	Returns an arrayref of map paths that are private for this
		1649	player. May block.
		1650
		1651	=cut
		1652
		1653	sub maps($) {
		1654	my ($pl) = @_;
		1655
		1656	$pl = ref $pl ? $pl->ob->name : $pl;
		1657
		1658	my $files = aio_readdir playerdir $pl
		1659	or return;
		1660
		1661	my @paths;
		1662
		1663	for (@$files) {
		1664	utf8::decode $_;
		1665	next if /\.(?:pl|pst)$/;
		1666	next unless /^$PATH_SEP/o;
		1667
		1668	push @paths, cf::map::normalise "~$pl/$_";
		1669	}
		1670
		1671	\@paths
		1672	}
		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
		1678	=item $player->ext_reply ($msgid, @msg)
		1679
		1680	Sends an ext reply to the player.
		1681
		1682	=cut
		1683
		1684	sub ext_reply($$@) {
		1685	my ($self, $id, @msg) = @_;
		1686
		1687	$self->ns->ext_reply ($id, @msg)
		1688	}
		1689
		1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
984	my ($path) = @_;	1717	my ($path) = @_;
985		1718
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1719	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1720
992	warn "loading '$path' into '$pkg'\n";	1721	for my $region (list) {
993		1722	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1723	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1724	if $region->specificity > $specificity;
996		1725	}
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	# }	1726	}
1026		1727
1027	# remove commands	1728	$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	}	1729	}
1133		1730
1134	=back	1731	=back
1135
1136		1732
1137	=head3 cf::map	1733	=head3 cf::map
1138		1734
1139	=over 4	1735	=over 4
1140		1736
…		…
1143	package cf::map;	1739	package cf::map;
1144		1740
1145	use Fcntl;	1741	use Fcntl;
1146	use Coro::AIO;	1742	use Coro::AIO;
1147		1743
		1744	use overload
		1745	'""' => \&as_string,
		1746	fallback => 1;
		1747
1148	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1150		1750
1151	sub generate_random_map {	1751	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1755
1154	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1757	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1761	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1762	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1763	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1764	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1765	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1766	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1767	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1768	(cf::region::find $rmp->{region}), $rmp->{custom}
		1769	)
1168	}	1770	}
1169		1771
1170	# and all this just because we cannot iterate over	1772	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1773
1175	$_->change_map_light ($change)	1774	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1775	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1776	default).
1178		1777
1179	sub try_load_header($) {	1778	=cut
		1779
		1780	sub register {
		1781	my (undef, $regex, $prio) = @_;
		1782	my $pkg = caller;
		1783
		1784	no strict;
		1785	push @{"$pkg\::ISA"}, __PACKAGE__;
		1786
		1787	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1788	}
		1789
		1790	# also paths starting with '/'
		1791	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1792
		1793	sub thawer_merge {
		1794	my ($self, $merge) = @_;
		1795
		1796	# we have to keep some variables in memory intact
		1797	local $self->{path};
		1798	local $self->{load_path};
		1799
		1800	$self->SUPER::thawer_merge ($merge);
		1801	}
		1802
		1803	sub normalise {
1180	my ($path) = @_;	1804	my ($path, $base) = @_;
		1805
		1806	$path = "$path"; # make sure its a string
		1807
		1808	$path =~ s/\.map$//;
		1809
		1810	# map plan:
		1811	#
		1812	# /! non-realised random map exit (special hack!)
		1813	# {... are special paths that are not being touched
		1814	# ?xxx/... are special absolute paths
		1815	# ?random/... random maps
		1816	# /... normal maps
		1817	# ~user/... per-player map of a specific user
		1818
		1819	$path =~ s/$PATH_SEP/\//go;
		1820
		1821	# treat it as relative path if it starts with
		1822	# something that looks reasonable
		1823	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1824	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1825
		1826	$base =~ s{[^/]+/?$}{};
		1827	$path = "$base/$path";
		1828	}
		1829
		1830	for ($path) {
		1831	redo if s{//}{/};
		1832	redo if s{/\.?/}{/};
		1833	redo if s{/[^/]+/\.\./}{/};
		1834	}
		1835
		1836	$path
		1837	}
		1838
		1839	sub new_from_path {
		1840	my (undef, $path, $base) = @_;
		1841
		1842	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1843
		1844	$path = normalise $path, $base;
		1845
		1846	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1847	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1848	my $self = bless cf::map::new, $pkg;
		1849	$self->{path} = $path; $self->path ($path);
		1850	$self->init; # pass $1 etc.
		1851	return $self;
		1852	}
		1853	}
		1854
		1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1856	()
		1857	}
		1858
		1859	sub init {
		1860	my ($self) = @_;
		1861
		1862	$self
		1863	}
		1864
		1865	sub as_string {
		1866	my ($self) = @_;
		1867
		1868	"$self->{path}"
		1869	}
		1870
		1871	# the displayed name, this is a one way mapping
		1872	sub visible_name {
		1873	&as_string
		1874	}
		1875
		1876	# the original (read-only) location
		1877	sub load_path {
		1878	my ($self) = @_;
		1879
		1880	"$MAPDIR/$self->{path}.map"
		1881	}
		1882
		1883	# the temporary/swap location
		1884	sub save_path {
		1885	my ($self) = @_;
		1886
		1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1888	"$TMPDIR/$path.map"
		1889	}
		1890
		1891	# the unique path, undef == no special unique path
		1892	sub uniq_path {
		1893	my ($self) = @_;
		1894
		1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1896	"$UNIQUEDIR/$path"
		1897	}
		1898
		1899	sub decay_objects {
		1900	my ($self) = @_;
		1901
		1902	return if $self->{deny_reset};
		1903
		1904	$self->do_decay_objects;
		1905	}
		1906
		1907	sub unlink_save {
		1908	my ($self) = @_;
		1909
		1910	utf8::encode (my $save = $self->save_path);
		1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1912	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1913	}
		1914
		1915	sub load_header_from($) {
		1916	my ($self, $path) = @_;
1181		1917
1182	utf8::encode $path;	1918	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1184	or return;	1920	or return;
1185		1921
1186	my $map = cf::map::new	1922	$self->_load_header ($f)
1187	or return;	1923	or return;
1188		1924
1189	$map->load_header ($path)	1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
		1927
		1928	$self->{load_path} = $path;
		1929
		1930	1
		1931	}
		1932
		1933	sub load_header_orig {
		1934	my ($self) = @_;
		1935
		1936	$self->load_header_from ($self->load_path)
		1937	}
		1938
		1939	sub load_header_temp {
		1940	my ($self) = @_;
		1941
		1942	$self->load_header_from ($self->save_path)
		1943	}
		1944
		1945	sub prepare_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->last_access ((delete $self->{last_access})
		1949	|| $cf::RUNTIME); #d#
		1950	# safety
		1951	$self->{instantiate_time} = $cf::RUNTIME
		1952	if $self->{instantiate_time} > $cf::RUNTIME;
		1953	}
		1954
		1955	sub prepare_orig {
		1956	my ($self) = @_;
		1957
		1958	$self->{load_original} = 1;
		1959	$self->{instantiate_time} = $cf::RUNTIME;
		1960	$self->last_access ($cf::RUNTIME);
		1961	$self->instantiate;
		1962	}
		1963
		1964	sub load_header {
		1965	my ($self) = @_;
		1966
		1967	if ($self->load_header_temp) {
		1968	$self->prepare_temp;
		1969	} else {
		1970	$self->load_header_orig
1190	or return;	1971	or return;
		1972	$self->prepare_orig;
		1973	}
1191		1974
1192	$map->{load_path} = $path;	1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
1193		1977
1194	$map	1978	$self->default_region (cf::region::find_by_path $self->{path})
		1979	unless $self->default_region;
		1980
		1981	1
1195	}	1982	}
1196		1983
1197	sub find;	1984	sub find;
1198	sub find {	1985	sub find {
1199	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1200		1987
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1989
1206	cf::lock_wait "map_find:$key";	1990	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";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1210		1992
1211	# do it the slow way	1993	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	1994	my $map = new_from_path cf::map $path
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1995	or return;
1228		1996
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1241		1998
1242	if ($map->should_reset) {	1999	$map->load_header
		2000	or return;
		2001
		2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2003	# doing this can freeze the server in a sync job, obviously
		2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1243	$map->reset;	2007	$map->reset;
1244	undef $guard;
1245	$map = find $path	2008	return find $path;
1246	or return;
1247	}	2009	}
1248		2010
1249	$cf::MAP{$key} = $map	2011	$cf::MAP{$path} = $map
1250	}	2012	}
1251	}	2013	}
		2014
		2015	sub pre_load { }
		2016	sub post_load { }
1252		2017
1253	sub load {	2018	sub load {
1254	my ($self) = @_;	2019	my ($self) = @_;
1255		2020
		2021	local $self->{deny_reset} = 1; # loading can take a long time
		2022
1256	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2026	my $guard = cf::lock_acquire "map_data:$path";
1258		2027
		2028	return unless $self->valid;
1259	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1260		2030
1261	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1262		2032
1263	$self->alloc;	2033	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	2034
		2035	$self->pre_load;
		2036	cf::cede_to_tick;
		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
		2040	$self->_load_objects ($f)
1265	or return;	2041	or return;
1266		2042
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1268	if delete $self->{load_original};	2044	if delete $self->{load_original};
1269		2045
1270	if (my $uniq = $path->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	2047	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	2050	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1275	}	2054	}
1276	}	2055	}
1277		2056
		2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1278	# now do the right thing for maps	2060	# now do the right thing for maps
1279	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	2063	unless $self->difficulty;
		2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1291	$self->activate;	2071	$self->activate;
1292	}	2072	}
1293		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1294	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
		2078	}
		2079
		2080	$self->post_load;
		2081	}
		2082
		2083	sub customise_for {
		2084	my ($self, $ob) = @_;
		2085
		2086	return find "~" . $ob->name . "/" . $self->{path}
		2087	if $self->per_player;
		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
		2092	$self
		2093	}
		2094
		2095	# find and load all maps in the 3x3 area around a map
		2096	sub load_neighbours {
		2097	my ($map) = @_;
		2098
		2099	my @neigh; # diagonal neighbours
		2100
		2101	for (0 .. 3) {
		2102	my $neigh = $map->tile_path ($_)
		2103	or next;
		2104	$neigh = find $neigh, $map
		2105	or next;
		2106	$neigh->load;
		2107
		2108	push @neigh,
		2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2111	}
		2112
		2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
		2115	my $neigh = find $path, $origin
		2116	or next;
		2117	$neigh->load;
		2118	}
1295	}	2119	}
1296		2120
1297	sub find_sync {	2121	sub find_sync {
1298	my ($path, $origin) = @_;	2122	my ($path, $origin) = @_;
1299		2123
1300	cf::sync_job { cf::map::find $path, $origin }	2124	cf::sync_job { find $path, $origin }
1301	}	2125	}
1302		2126
1303	sub do_load_sync {	2127	sub do_load_sync {
1304	my ($map) = @_;	2128	my ($map) = @_;
1305		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1306	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
		2134	}
		2135
		2136	our %MAP_PREFETCH;
		2137	our $MAP_PREFETCHER = undef;
		2138
		2139	sub find_async {
		2140	my ($path, $origin, $load) = @_;
		2141
		2142	$path = normalise $path, $origin && $origin->{path};
		2143
		2144	if (my $map = $cf::MAP{$path}) {
		2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2146	}
		2147
		2148	$MAP_PREFETCH{$path} |= $load;
		2149
		2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
		2153	while (%MAP_PREFETCH) {
		2154	while (my ($k, $v) = each %MAP_PREFETCH) {
		2155	if (my $map = find $k) {
		2156	$map->load if $v;
		2157	}
		2158
		2159	delete $MAP_PREFETCH{$k};
		2160	}
		2161	}
		2162	undef $MAP_PREFETCHER;
		2163	};
		2164	$MAP_PREFETCHER->prio (6);
		2165
		2166	()
1307	}	2167	}
1308		2168
1309	sub save {	2169	sub save {
1310	my ($self) = @_;	2170	my ($self) = @_;
1311		2171
		2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2173
1312	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1313		2175
1314	return unless $self->dirty;	2176	return unless $self->dirty;
1315		2177
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2178	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2179	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2180
1319	$self->{load_path} = $save;	2181	$self->{load_path} = $save;
1320		2182
1321	return if $self->{deny_save};	2183	return if $self->{deny_save};
1322		2184
1323	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1324		2186
		2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
		2189	$_->contr->save for $self->players;
		2190	};
		2191
		2192	cf::get_slot 0.02;
		2193
1325	if ($uniq) {	2194	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2197	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2198	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2199	}
1331	}	2200	}
1332		2201
1333	sub swap_out {	2202	sub swap_out {
1334	my ($self) = @_;	2203	my ($self) = @_;
1335		2204
1336	# save first because save cedes	2205	# save first because save cedes
1337	$self->save;	2206	$self->save;
1338		2207
		2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2209
1339	return if $self->players;	2210	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1341	return if $self->{deny_save};	2212	return if $self->{deny_save};
1342		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1343	$self->clear;	2218	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2219	}
1346		2220
1347	sub reset_at {	2221	sub reset_at {
1348	my ($self) = @_;	2222	my ($self) = @_;
1349		2223
1350	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1353		2226
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2229
…		…
1361	my ($self) = @_;	2234	my ($self) = @_;
1362		2235
1363	$self->reset_at <= $cf::RUNTIME	2236	$self->reset_at <= $cf::RUNTIME
1364	}	2237	}
1365		2238
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2239	sub reset {
1388	my ($self) = @_;	2240	my ($self) = @_;
1389		2241
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
1390	return if $self->players;	2244	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2245
1393	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	# need to save uniques path
		2251	unless ($self->{deny_save}) {
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2255	if $uniq;
		2256	}
1394		2257
1395	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1396		2259
		2260	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2261	$_->clear_links_to ($self) for values %cf::MAP;
		2262	$self->clear;
1398		2263
1399	$self->unlink_save;	2264	$self->unlink_save;
1400	$self->destroy;	2265	$self->destroy;
1401	}	2266	}
1402		2267
1403	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1404		2269
1405	sub nuke {	2270	sub nuke {
1406	my ($self) = @_;	2271	my ($self) = @_;
1407		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
		2276	delete $cf::MAP{$self->path};
		2277
		2278	$self->unlink_save;
		2279
		2280	bless $self, "cf::map";
		2281	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2285
		2286	$cf::MAP{$self->path} = $self;
		2287	}
		2288
1411	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
1412	}	2290	}
1413		2291
1414	sub customise_for {	2292	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2293
1417	if ($map->per_player) {	2294	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
1419	}	2300	[
1420		2301	map {
1421	$map	2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
1422	}	2308	}
1423		2309
1424	sub emergency_save {	2310	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2311
1427	warn "enter emergency map save\n";	2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
1428		2314
1429	cf::sync_job {	2315	=cut
1430	warn "begin emergency map save\n";	2316
1431	$_->save for values %cf::MAP;	2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item cf::map::unique_maps
		2329
		2330	Returns an arrayref of paths of all shared maps that have
		2331	instantiated unique items. May block.
		2332
		2333	=cut
		2334
		2335	sub unique_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	s/\.map$//; # TODO future compatibility hack
		2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2341	? ()
		2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
1432	};	2374	}
1433		2375
1434	warn "end emergency map save\n";	2376	\@maps
		2377	}
		2378
		2379	=back
		2380
		2381	=head3 cf::object
		2382
		2383	=cut
		2384
		2385	package cf::object;
		2386
		2387	=over 4
		2388
		2389	=item $ob->inv_recursive
		2390
		2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
		2393
		2394	=cut
		2395
		2396	sub inv_recursive_;
		2397	sub inv_recursive_ {
		2398	map { $_, inv_recursive_ $_->inv } @_
		2399	}
		2400
		2401	sub inv_recursive {
		2402	inv_recursive_ inv $_[0]
		2403	}
		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
1435	}	2431	}
1436		2432
1437	package cf;	2433	package cf;
1438		2434
1439	=back	2435	=back
1440
1441		2436
1442	=head3 cf::object::player	2437	=head3 cf::object::player
1443		2438
1444	=over 4	2439	=over 4
1445		2440
…		…
1448	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1449	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1450	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1451		2446
1452	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1453		2462
1454	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1455	# with dialog boxes.	2464	# with dialog boxes.
1456	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1457	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1459		2468
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2470
1462	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1464	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1467	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1468	}	2496	}
1469		2497
1470	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1471		2499
1472	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1485		2513
1486	=item $player_object->enter_link	2514	=item $player_object->enter_link
1487		2515
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2517
1490	The player should be reaosnably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1491	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
		2522
		2523	Will never block.
1492		2524
1493	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1494		2526
1495	Moves the player out of the specila link map onto the given map. If the	2527	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2528	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2529	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2530	fails, to the emergency map position.
1499		2531
1500	Might block.	2532	Might block.
1501		2533
1502	=cut	2534	=cut
		2535
		2536	sub link_map {
		2537	unless ($LINK_MAP) {
		2538	$LINK_MAP = cf::map::find "{link}"
		2539	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2540	$LINK_MAP->load;
		2541	}
		2542
		2543	$LINK_MAP
		2544	}
1503		2545
1504	sub cf::object::player::enter_link {	2546	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2547	my ($self) = @_;
1506		2548
1507	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1508		2550
1509	return if $self->map == $LINK_MAP;	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2552
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1513		2555
1514	$self->enter_map ($LINK_MAP, 20, 20);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2557	}
1516		2558
1517	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1519		2563
1520	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1521		2565
1522	unless ($map) {	2566	unless ($map) {
1523	# restore original map position	2567	# restore original map position
…		…
1534	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1535	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1536		2580
1537	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1540		2584
1541	$map->load;	2585	$map->load;
		2586	$map->load_neighbours;
1542		2587
		2588	return unless $self->contr->active;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2591	$self->enter_map ($map, $x, $y);
		2592
		2593	# only activate afterwards, to support waiting in hooks
1543	$self->activate_recursive;	2594	$self->activate_recursive;
1544	$self->enter_map ($map, $x, $y);
1545	}	2595	}
1546		2596
1547	cf::player->attach (	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2598
1551	# abort map switching before logout	2599	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2600	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2602	the new (success) or old (failed) map position. In either case, $done will
1555	};	2603	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2604
1561	# try to abort aborted map switching on player login :)	2605	Note that $check will be called with a potentially non-loaded map, so if
1562	# should happen only on crashes	2606	it needs a loaded map it has to call C<< ->load >>.
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574		2607
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2608	=cut
1578		2609
		2610	our $GOTOGEN;
		2611
1579	sub cf::object::player::goto_map {	2612	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2617
1582	$self->enter_link;	2618	$self->enter_link;
1583		2619
1584	(cf::async {	2620	(async {
1585	$path = new cf::path $path;	2621	$Coro::current->{desc} = "player::goto $path $x $y";
1586		2622
1587	my $map = cf::map::find $path->as_string;	2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
		2642	my $map = eval {
		2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
1589		2647	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2648	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
1594		2651
		2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
		2658	}
		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1596	})->prio (1);	2666	})->prio (1);
1597	}	2667	}
1598		2668
1599	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1600		2670
…		…
1602		2672
1603	sub parse_random_map_params {	2673	sub parse_random_map_params {
1604	my ($spec) = @_;	2674	my ($spec) = @_;
1605		2675
1606	my $rmp = { # defaults	2676	my $rmp = { # defaults
1607	xsize => 10,	2677	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2678	ysize => (cf::rndm 15, 40),
		2679	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2680	#layout => string,
1609	};	2681	};
1610		2682
1611	for (split /\n/, $spec) {	2683	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2684	my ($k, $v) = split /\s+/, $_, 2;
1613		2685
…		…
1625	# that depends on the exit object	2697	# that depends on the exit object
1626		2698
1627	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
1628		2700
1629	if ($exit->map) {	2701	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2702	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1634	}	2708	}
1635		2709
1636	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1637		2711
1638	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1639	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
		2714	my $meta = "$RANDOMDIR/$md5.meta";
1640		2715
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
		2718	undef $fh;
		2719	aio_rename "$meta~", $meta;
1643		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1644	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1646	}	2727	}
1647	}	2728	}
1648		2729
1649	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
1651		2732
1652	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1653		2734
1654	$self->enter_link;	2735	$self->enter_link;
1655		2736
1656	(cf::async {	2737	(async {
1657	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1658	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
1659	prepare_random_map $exit	2747	prepare_random_map $exit
1660	if $exit->slaying eq "/!";	2748	if $exit->slaying eq "/!";
		2749	}
1661		2750
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
1664		2754
		2755	$self->goto ($map, $x, $y);
		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
1665	1;	2761	1
1666	}) {	2762	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1668	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2765	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2767
1672	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2769	$self->leave_link;
1674	}	2770	}
1675	})->prio (1);	2771	})->prio (1);
…		…
1688		2784
1689	sub cf::client::send_drawinfo {	2785	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2786	my ($self, $text, $flags) = @_;
1691		2787
1692	utf8::encode $text;	2788	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2790	}
1695		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
		2979	=item $client->ext_msg ($type, @msg)
		2980
		2981	Sends an ext event to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_msg($$@) {
		2986	my ($self, $type, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
		2991	push @msg, msgtype => "event_$type";
		2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
1696		3013
1697	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
1698		3015
1699	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		3019
1703	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	3021	become reliable at some point in the future.
1705		3022
1706	=cut	3023	=cut
1707		3024
1708	sub cf::client::query {	3025	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	3034	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		3036
1720	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
1722	}	3041	}
1723		3042
1724	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
1725	on_reply => sub {	3049	on_reply => sub {
1726	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
1727		3051
1728	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
1729	# get handled first	3053	# get handled first
1730	my $queue = delete $ns->{query_queue}	3054	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	3055	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		3056
1733	(shift @$queue)->[1]->($msg);	3057	(shift @$queue)->[1]->($msg);
		3058	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		3059
1735	push @{ $ns->{query_queue} }, @$queue;	3060	push @{ $ns->{query_queue} }, @$queue;
1736		3061
1737	if (@{ $ns->{query_queue} } == @$queue) {	3062	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	3063	if (@$queue) {
…		…
1740	} else {	3065	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	3067	}
1743	}	3068	}
1744	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
1745	);	3096	);
1746		3097
1747	=item $client->coro (\&cb)	3098	=item $client->async (\&cb)
1748		3099
1749	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	3101	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	3102	or loss of connection).
1752		3103
1753	=cut	3104	=cut
1754		3105
1755	sub cf::client::coro {	3106	sub cf::client::async {
1756	my ($self, $cb) = @_;	3107	my ($self, $cb) = @_;
1757		3108
1758	my $coro = &cf::async ($cb);	3109	my $coro = &Coro::async ($cb);
1759		3110
1760	$coro->on_destroy (sub {	3111	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	3112	delete $self->{_coro}{$coro+0};
1762	});	3113	});
1763		3114
…		…
1790	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
1792		3143
1793	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
1794		3145
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
1796		3151
1797	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
1798		3153
1799	=pod	3154	=pod
1800		3155
1801	The following fucntions and emthods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
1802		3157
1803	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
1804	cf::object::player player	3163	cf::object::player
1805	cf::player peaceful	3164	player
1806	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
1807		3171
1808	=cut	3172	=cut
1809		3173
1810	for (	3174	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
1812	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
1814	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
1815	) {	3181	) {
1816	no strict 'refs';	3182	no strict 'refs';
1817	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
1818	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1835	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
1836		3202
1837	my $qcode = $code;	3203	my $qcode = $code;
1838	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1839	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
1840		3208
1841	local $_;	3209	local $_;
1842	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
1843		3211
1844	my $eval =	3212	my $eval =
…		…
1887	=back	3255	=back
1888		3256
1889	=cut	3257	=cut
1890		3258
1891	#############################################################################	3259	#############################################################################
		3260	# the server's init and main functions
1892		3261
1893	=head2 EXTENSION DATABASE SUPPORT	3262	sub load_facedata($) {
		3263	my ($path) = @_;
1894		3264
1895	Crossfire maintains a very simple database for extension use. It can	3265	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	3266	# for this (global event?)
1897	excludes objects.	3267	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		3268
1899	The parameter C<$family> should best start with the name of the extension	3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		3270
1902	=over 4	3271	warn "loading facedata from $path\n";
1903		3272
1904	=item $hashref = cf::db_get $family	3273	my $facedata;
		3274	0 < aio_load $path, $facedata
		3275	or die "$path: $!";
1905		3276
1906	Return a hashref for use by the extension C<$family>, which can be	3277	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		3278
1910	=item $value = cf::db_get $family => $key	3279	$facedata->{version} == 2
		3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		3281
1912	Returns a single value from the database	3282	# patch in the exptable
1913		3283	$facedata->{resource}{"res/exp_table"} = {
1914	=item cf::db_put $family => $hashref	3284	type => FT_RSRC,
1915		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	3286	};
		3287	cf::cede_to_tick;
1965		3288
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	3289	{
		3290	my $faces = $facedata->{faceinfo};
1970		3291
1971	sub db_get($;$) {	3292	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		3294
1977	sub db_put($$;$) {	3295	cf::face::set_visibility $idx, $info->{visibility};
1978	if (@_ >= 3) {	3296	cf::face::set_magicmap $idx, $info->{magicmap};
1979	$DB->{$_[0]}{$_[1]} = $_[2];	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1980	} else {	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		3299
1986	cf::global->attach (	3300	cf::cede_to_tick;
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	3301	}
1991	);
1992	}
1993		3302
1994	#############################################################################	3303	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	3304	next unless $info->{smooth};
1996		3305
1997	sub cfg_load {	3306	my $idx = cf::face::find $face
		3307	or next;
		3308
		3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
		3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3312	} else {
		3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3314	}
		3315
		3316	cf::cede_to_tick;
		3317	}
		3318	}
		3319
		3320	{
		3321	my $anims = $facedata->{animinfo};
		3322
		3323	while (my ($anim, $info) = each %$anims) {
		3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3325	cf::cede_to_tick;
		3326	}
		3327
		3328	cf::anim::invalidate_all; # d'oh
		3329	}
		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
		3366	1
		3367	}
		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
		3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	load_resource_file "$MAPDIR/regions"
		3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
		3419	}
		3420
		3421	sub reload_facedata {
		3422	load_facedata "$DATADIR/facedata"
		3423	or die "unable to load facedata\n";
		3424	}
		3425
		3426	sub reload_archetypes {
		3427	load_resource_file "$DATADIR/archetypes"
		3428	or die "unable to load archetypes\n";
		3429	}
		3430
		3431	sub reload_treasures {
		3432	load_resource_file "$DATADIR/treasures"
		3433	or die "unable to load treasurelists\n";
		3434	}
		3435
		3436	sub reload_resources {
		3437	warn "reloading resource files...\n";
		3438
		3439	reload_facedata;
		3440	reload_archetypes;
		3441	reload_regions;
		3442	reload_treasures;
		3443
		3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3451	or return;
2000		3452
2001	local $/;	3453	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2003		3455
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3457
		3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2005		3460
2006	if (exists $CFG{mlockall}) {	3461	if (exists $CFG{mlockall}) {
2007	eval {	3462	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3465	};
2011	warn $@ if $@;	3466	warn $@ if $@;
2012	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2013	}	3498	}
2014		3499
2015	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2016	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3518	(async {
2020	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
2021	})->();	3520	EV::loop EV::LOOP_ONESHOT;
		3521	})->prio (Coro::PRIO_MAX);
2022	};	3522	};
2023		3523
2024	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
2025	db_load;	3525
		3526	cf::sync_job {
		3527	cf::load_settings;
		3528	cf::load_materials;
		3529
		3530	reload_resources;
		3531	reload_config;
		3532	db_init;
		3533
		3534	cf::init_uuid;
		3535	cf::init_signals;
		3536	cf::init_commands;
		3537	cf::init_skills;
		3538
		3539	cf::init_beforeplay;
		3540
		3541	atomic;
		3542
2026	load_extensions;	3543	load_extensions;
2027	Event::loop;	3544
		3545	utime time, time, $RUNTIMEFILE;
		3546
		3547	# no (long-running) fork's whatsoever before this point(!)
		3548	use POSIX ();
		3549	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3550
		3551	(pop @POST_INIT)->(0) while @POST_INIT;
		3552	};
		3553
		3554	main_loop;
2028	}	3555	}
2029		3556
2030	#############################################################################	3557	#############################################################################
2031	# initialisation	3558	# initialisation and cleanup
2032		3559
		3560	# install some emergency cleanup handlers
		3561	BEGIN {
		3562	our %SIGWATCHER = ();
		3563	for my $signal (qw(INT HUP TERM)) {
		3564	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3565	cf::cleanup "SIG$signal";
		3566	};
		3567	}
		3568	}
		3569
		3570	sub write_runtime_sync {
		3571	# first touch the runtime file to show we are still running:
		3572	# the fsync below can take a very very long time.
		3573
		3574	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3575
		3576	my $guard = cf::lock_acquire "write_runtime";
		3577
		3578	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3579	or return;
		3580
		3581	my $value = $cf::RUNTIME + 90 + 10;
		3582	# 10 is the runtime save interval, for a monotonic clock
		3583	# 60 allows for the watchdog to kill the server.
		3584
		3585	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3586	and return;
		3587
		3588	# always fsync - this file is important
		3589	aio_fsync $fh
		3590	and return;
		3591
		3592	# touch it again to show we are up-to-date
		3593	aio_utime $fh, undef, undef;
		3594
		3595	close $fh
		3596	or return;
		3597
		3598	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3599	and return;
		3600
		3601	warn "runtime file written.\n";
		3602
		3603	1
		3604	}
		3605
		3606	our $uuid_lock;
		3607	our $uuid_skip;
		3608
		3609	sub write_uuid_sync($) {
		3610	$uuid_skip ||= $_[0];
		3611
		3612	return if $uuid_lock;
		3613	local $uuid_lock = 1;
		3614
		3615	my $uuid = "$LOCALDIR/uuid";
		3616
		3617	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3618	or return;
		3619
		3620	my $value = uuid_seq uuid_cur;
		3621
		3622	unless ($value) {
		3623	warn "cowardly refusing to write zero uuid value!\n";
		3624	return;
		3625	}
		3626
		3627	my $value = uuid_str $value + $uuid_skip;
		3628	$uuid_skip = 0;
		3629
		3630	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3631	and return;
		3632
		3633	# always fsync - this file is important
		3634	aio_fsync $fh
		3635	and return;
		3636
		3637	close $fh
		3638	or return;
		3639
		3640	aio_rename "$uuid~", $uuid
		3641	and return;
		3642
		3643	warn "uuid file written ($value).\n";
		3644
		3645	1
		3646
		3647	}
		3648
		3649	sub write_uuid($$) {
		3650	my ($skip, $sync) = @_;
		3651
		3652	$sync ? write_uuid_sync $skip
		3653	: async { write_uuid_sync $skip };
		3654	}
		3655
		3656	sub emergency_save() {
		3657	my $freeze_guard = cf::freeze_mainloop;
		3658
		3659	warn "emergency_perl_save: enter\n";
		3660
		3661	cf::sync_job {
		3662	# this is a trade-off: we want to be very quick here, so
		3663	# save all maps without fsync, and later call a global sync
		3664	# (which in turn might be very very slow)
		3665	local $USE_FSYNC = 0;
		3666
		3667	# use a peculiar iteration method to avoid tripping on perl
		3668	# refcount bugs in for. also avoids problems with players
		3669	# and maps saved/destroyed asynchronously.
		3670	warn "emergency_perl_save: begin player save\n";
		3671	for my $login (keys %cf::PLAYER) {
		3672	my $pl = $cf::PLAYER{$login} or next;
		3673	$pl->valid or next;
		3674	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3675	$pl->save;
		3676	}
		3677	warn "emergency_perl_save: end player save\n";
		3678
		3679	warn "emergency_perl_save: begin map save\n";
		3680	for my $path (keys %cf::MAP) {
		3681	my $map = $cf::MAP{$path} or next;
		3682	$map->valid or next;
		3683	$map->save;
		3684	}
		3685	warn "emergency_perl_save: end map save\n";
		3686
		3687	warn "emergency_perl_save: begin database checkpoint\n";
		3688	BDB::db_env_txn_checkpoint $DB_ENV;
		3689	warn "emergency_perl_save: end database checkpoint\n";
		3690
		3691	warn "emergency_perl_save: begin write uuid\n";
		3692	write_uuid_sync 1;
		3693	warn "emergency_perl_save: end write uuid\n";
		3694	};
		3695
		3696	warn "emergency_perl_save: starting sync()\n";
		3697	IO::AIO::aio_sync sub {
		3698	warn "emergency_perl_save: finished sync()\n";
		3699	};
		3700
		3701	warn "emergency_perl_save: leave\n";
		3702	}
		3703
		3704	sub post_cleanup {
		3705	my ($make_core) = @_;
		3706
		3707	warn Carp::longmess "post_cleanup backtrace"
		3708	if $make_core;
		3709
		3710	my $fh = pidfile;
		3711	unlink $PIDFILE if <$fh> == $$;
		3712	}
		3713
		3714	# a safer delete_package, copied from Symbol
		3715	sub clear_package($) {
		3716	my $pkg = shift;
		3717
		3718	# expand to full symbol table name if needed
		3719	unless ($pkg =~ /^main::.*::$/) {
		3720	$pkg = "main$pkg" if $pkg =~ /^::/;
		3721	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3722	$pkg .= '::' unless $pkg =~ /::$/;
		3723	}
		3724
		3725	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3726	my $stem_symtab = *{$stem}{HASH};
		3727
		3728	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3729	or return;
		3730
		3731	# clear all symbols
		3732	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3733	for my $name (keys %$leaf_symtab) {
		3734	_gv_clear *{"$pkg$name"};
		3735	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3736	}
		3737	warn "cleared package $pkg\n";#d#
		3738	}
		3739
2033	sub reload() {	3740	sub do_reload_perl() {
2034	# can/must only be called in main	3741	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3742	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3743	warn "can only reload from main coroutine";
2037	return;	3744	return;
2038	}	3745	}
2039		3746
		3747	return if $RELOAD++;
		3748
		3749	my $t1 = EV::time;
		3750
		3751	while ($RELOAD) {
2040	warn "reloading...";	3752	warn "reloading...";
2041		3753
2042	my $guard = freeze_mainloop;	3754	warn "entering sync_job";
		3755
		3756	cf::sync_job {
		3757	cf::write_runtime_sync; # external watchdog should not bark
2043	cf::emergency_save;	3758	cf::emergency_save;
		3759	cf::write_runtime_sync; # external watchdog should not bark
2044		3760
2045	eval {	3761	warn "syncing database to disk";
		3762	BDB::db_env_txn_checkpoint $DB_ENV;
		3763
2046	# if anything goes wrong in here, we should simply crash as we already saved	3764	# if anything goes wrong in here, we should simply crash as we already saved
2047		3765
2048	# cancel all watchers	3766	warn "flushing outstanding aio requests";
2049	for (Event::all_watchers) {	3767	while (IO::AIO::nreqs || BDB::nreqs) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3768	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2051	}
2052
2053	# cancel all extension coros
2054	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();
2056
2057	# unload all extensions
2058	for (@exts) {
2059	warn "unloading <$_>";
2060	unload_extension $_;
2061	}
2062
2063	# unload all modules loaded from $LIBDIR
2064	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066
2067	warn "removing <$k>";
2068	delete $INC{$k};
2069
2070	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;
2072
2073	if (my $cb = $k->can ("unload_module")) {
2074	$cb->();
2075	}	3769	}
2076		3770
2077	Symbol::delete_package $k;	3771	warn "cancelling all extension coros";
		3772	$_->cancel for values %EXT_CORO;
		3773	%EXT_CORO = ();
		3774
		3775	warn "removing commands";
		3776	%COMMAND = ();
		3777
		3778	warn "removing ext/exti commands";
		3779	%EXTCMD = ();
		3780	%EXTICMD = ();
		3781
		3782	warn "unloading/nuking all extensions";
		3783	for my $pkg (@EXTS) {
		3784	warn "... unloading $pkg";
		3785
		3786	if (my $cb = $pkg->can ("unload")) {
		3787	eval {
		3788	$cb->($pkg);
		3789	1
		3790	} or warn "$pkg unloaded, but with errors: $@";
		3791	}
		3792
		3793	warn "... clearing $pkg";
		3794	clear_package $pkg;
2078	}	3795	}
2079		3796
2080	# sync database to disk	3797	warn "unloading all perl modules loaded from $LIBDIR";
2081	cf::db_sync;	3798	while (my ($k, $v) = each %INC) {
2082	IO::AIO::flush;	3799	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2083		3800
		3801	warn "... unloading $k";
		3802	delete $INC{$k};
		3803
		3804	$k =~ s/\.pm$//;
		3805	$k =~ s/\//::/g;
		3806
		3807	if (my $cb = $k->can ("unload_module")) {
		3808	$cb->();
		3809	}
		3810
		3811	clear_package $k;
		3812	}
		3813
2084	# get rid of safe::, as good as possible	3814	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3815	clear_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3816	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3817
2088	# remove register_script_function callbacks	3818	warn "unloading cf.pm \"a bit\"";
2089	# TODO
2090
2091	# unload cf.pm "a bit"
2092	delete $INC{"cf.pm"};	3819	delete $INC{"cf.pm"};
		3820	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2093		3821
2094	# don't, removes xs symbols, too,	3822	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3823	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3824	#clear_package __PACKAGE__;
2097		3825
2098	# reload cf.pm	3826	warn "unload completed, starting to reload now";
		3827
2099	warn "reloading cf.pm";	3828	warn "reloading cf.pm";
2100	require cf;	3829	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3830	cf::_connect_to_perl_1;
2102		3831
2103	# load config and database again	3832	warn "loading config and database again";
2104	cf::cfg_load;	3833	cf::reload_config;
2105	cf::db_load;
2106		3834
2107	# load extensions
2108	warn "load extensions";	3835	warn "loading extensions";
2109	cf::load_extensions;	3836	cf::load_extensions;
2110		3837
2111	# reattach attachments to objects	3838	if ($REATTACH_ON_RELOAD) {
		3839	warn "reattaching attachments to objects/players";
		3840	_global_reattach; # objects, sockets
		3841	warn "reattaching attachments to maps";
		3842	reattach $_ for values %MAP;
		3843	warn "reattaching attachments to players";
		3844	reattach $_ for values %PLAYER;
		3845	}
		3846
		3847	warn "running post_init jobs";
		3848	(pop @POST_INIT)->(1) while @POST_INIT;
		3849
		3850	warn "leaving sync_job";
		3851
		3852	1
		3853	} or do {
		3854	warn $@;
		3855	cf::cleanup "error while reloading, exiting.";
		3856	};
		3857
2112	warn "reattach";	3858	warn "reloaded";
2113	_global_reattach;	3859	--$RELOAD;
		3860	}
		3861
		3862	$t1 = EV::time - $t1;
		3863	warn "reload completed in ${t1}s\n";
		3864	};
		3865
		3866	our $RELOAD_WATCHER; # used only during reload
		3867
		3868	sub reload_perl() {
		3869	# doing reload synchronously and two reloads happen back-to-back,
		3870	# coro crashes during coro_state_free->destroy here.
		3871
		3872	$RELOAD_WATCHER ||= cf::async {
		3873	Coro::AIO::aio_wait cache_extensions;
		3874
		3875	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3876	do_reload_perl;
		3877	undef $RELOAD_WATCHER;
		3878	};
2114	};	3879	};
2115
2116	if ($@) {
2117	warn $@;
2118	warn "error while reloading, exiting.";
2119	exit 1;
2120	}
2121
2122	warn "reloaded successfully";
2123	};
2124
2125	#############################################################################
2126
2127	unless ($LINK_MAP) {
2128	$LINK_MAP = cf::map::new;
2129
2130	$LINK_MAP->width (41);
2131	$LINK_MAP->height (41);
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,
2140	cb => sub {
2141	$_[0]->w->cancel;
2142
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});
2161
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3880	}
2167
2168	register "<global>", __PACKAGE__;
2169		3881
2170	register_command "reload" => sub {	3882	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3883	my ($who, $arg) = @_;
2172		3884
2173	if ($who->flag (FLAG_WIZ)) {	3885	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3886	$who->message ("reloading server.");
		3887	async {
		3888	$Coro::current->{desc} = "perl_reload";
		3889	reload_perl;
		3890	};
2177	}	3891	}
2178	};	3892	};
2179		3893
2180	unshift @INC, $LIBDIR;	3894	unshift @INC, $LIBDIR;
2181		3895
2182	$TICK_WATCHER = Event->timer (	3896	my $bug_warning = 0;
2183	reentrant => 0,	3897
2184	prio => 0,	3898	our @WAIT_FOR_TICK;
2185	at => $NEXT_TICK || $TICK,	3899	our @WAIT_FOR_TICK_BEGIN;
2186	data => WF_AUTOCANCEL,	3900
2187	cb => sub {	3901	sub wait_for_tick {
		3902	return if tick_inhibit || $Coro::current == $Coro::main;
		3903
		3904	my $signal = new Coro::Signal;
		3905	push @WAIT_FOR_TICK, $signal;
		3906	$signal->wait;
		3907	}
		3908
		3909	sub wait_for_tick_begin {
		3910	return if tick_inhibit || $Coro::current == $Coro::main;
		3911
		3912	my $signal = new Coro::Signal;
		3913	push @WAIT_FOR_TICK_BEGIN, $signal;
		3914	$signal->wait;
		3915	}
		3916
		3917	sub tick {
		3918	if ($Coro::current != $Coro::main) {
		3919	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3920	unless ++$bug_warning > 10;
		3921	return;
		3922	}
		3923
2188	cf::server_tick; # one server iteration	3924	cf::server_tick; # one server iteration
2189	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;
2191		3925
2192	# if we are delayed by four ticks or more, skip them all	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2194		3928	Coro::async_pool {
2195	$TICK_WATCHER->at ($NEXT_TICK);	3929	$Coro::current->{desc} = "runtime saver";
2196	$TICK_WATCHER->start;
2197	},
2198	);
2199
2200	IO::AIO::max_poll_time $TICK * 0.2;
2201
2202	Event->io (
2203	fd => IO::AIO::poll_fileno,
2204	poll => 'r',
2205	prio => 5,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,
2212	after => 0,
2213	interval => 10,
2214	cb => sub {
2215	(Coro::unblock_sub {
2216	write_runtime	3930	write_runtime_sync
2217	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2218	})->();	3932	};
2219	},	3933	}
2220	);	3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
		3953
		3954	{
		3955	# configure BDB
		3956
		3957	BDB::min_parallel 8;
		3958	BDB::max_poll_reqs $TICK * 0.1;
		3959	$AnyEvent::BDB::WATCHER->priority (1);
		3960
		3961	unless ($DB_ENV) {
		3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3968
		3969	cf::sync_job {
		3970	eval {
		3971	BDB::db_env_open
		3972	$DB_ENV,
		3973	$BDBDIR,
		3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3976	0666;
		3977
		3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3979	};
		3980
		3981	cf::cleanup "db_env_open(db): $@" if $@;
		3982	};
		3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
		3994	}
		3995
		3996	{
		3997	# configure IO::AIO
		3998
		3999	IO::AIO::min_parallel 8;
		4000	IO::AIO::max_poll_time $TICK * 0.1;
		4001	undef $AnyEvent::AIO::WATCHER;
		4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2221		4049
2222	END { cf::emergency_save }	4050	END { cf::emergency_save }
2223		4051
2224	1	4052	1
2225		4053

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