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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	115	our $NEXT_TICK;
50	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
51		124
52	our %CFG;	125	our %CFG;
53		126
54	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
56		130
57	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		134
65	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
68	binmode STDOUT;	148	binmode STDOUT;
69	binmode STDERR;	149	binmode STDERR;
70		150
71	# read virtual server time, if available	151	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
76	}	156	}
77		157
78	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	159
80	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		162
84	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
85		177
86	#############################################################################	178	#############################################################################
87		179
88	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
89		181
…		…
96	=item $cf::RUNTIME	188	=item $cf::RUNTIME
97		189
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	191	every server tick.
100		192
101	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		196
103	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
105		201
106	=item $cf::NOW	202	=item $cf::NOW
107		203
108	The time of the last (current) server tick.	204	The time of the last (current) server tick.
109		205
110	=item $cf::TICK	206	=item $cf::TICK
111		207
112	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
113		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
114	=item %cf::CFG	220	=item %cf::CFG
115		221
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	223	from wherever your confdir points to.
118		224
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		226
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
125		242
126	=back	243	=back
127		244
128	=cut	245	=cut
129		246
130	BEGIN {	247	$Coro::State::WARNHOOK = sub {
131	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	248	my $msg = join "", @_;
133	utf8::encode $msg;
134		249
135	$msg .= "\n"	250	$msg .= "\n"
136	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
137		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
138	LOG llevError, $msg;	255	LOG llevError, $msg;
139	};	256	};
140	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
141		271
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		279
149	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	281	# within the Safe compartment.
151	for my $pkg (qw(	282	for my $pkg (qw(
152	cf::global cf::attachable	283	cf::global cf::attachable
153	cf::object cf::object::player	284	cf::object cf::object::player
154	cf::client cf::player	285	cf::client cf::player
155	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
156	cf::map cf::party cf::region	288	cf::party cf::region
157	)) {	289	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	291	}
161		292
162	$Event::DIED = sub {	293	$EV::DIED = sub {
163	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
164	};	295	};
		296
		297	#############################################################################
165		298
166	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
167		300
168	=over 4	301	=over 4
169		302
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	322	$d
190	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
191	}	324	}
192		325
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
196		327
197	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
198		329
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
207		331
208	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
209		333
210	=cut	334	=cut
211		335
212	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
214	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
215	}	353	}
216		354
217	=item cf::lock_wait $string	355	=item cf::lock_wait $string
218		356
219	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
220		358
221	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
222		360
223	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
226	returned.	364	returned.
227		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
228	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
230		371
231	=cut	372	=item $locked = cf::lock_active $string
232		373
233	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
234		379
235	sub lock_wait($) {	380	sub lock_wait($) {
236	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	382	}
244		383
245	sub lock_acquire($) {	384	sub lock_acquire($) {
246	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
247		387
248	# wait, to be sure we are not locked	388	sub lock_active($) {
249	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	390	}
258		391
259	sub freeze_mainloop {	392	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
261		394
262	my $guard = Coro::guard { $TICK_WATCHER->start };	395	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	396	}
264	$guard	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
		462	}
		463	};
		464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
265	}	478	}
266		479
267	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
268		481
269	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		487
275	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
276		489
277	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
278		491
279	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
282		496
283	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
286	fast or be very important.	500	fast or be very important.
…		…
289		503
290	sub sync_job(&) {	504	sub sync_job(&) {
291	my ($job) = @_;	505	my ($job) = @_;
292		506
293	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
294	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
296		512
297	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	514
299	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
300		516
301	my $busy = 1;	517	my $busy = 1;
302	my @res;	518	my @res;
303		519
304	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	522	@res = eval { $job->() };
306	warn $@ if $@;	523	warn $@ if $@;
307	undef $busy;	524	undef $busy;
308	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
309		526
310	while ($busy) {	527	while ($busy) {
311	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
312	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
313		538
314	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
315	} else {	540	} else {
316	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
317		542
…		…
337	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
338		563
339	$coro	564	$coro
340	}	565	}
341		566
342	sub write_runtime {	567	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		568
345	my $runtime = cf::localdir . "/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
346		573
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
348	or return;
349		575
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	576	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	577	my ($cb, @args) = @_;
352	and return;
353		578
354	aio_fsync $fh	579	# we seemingly have to make a local copy of the whole thing,
355	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
356		582
357	close $fh	583	my @res = Coro::Util::fork_eval {
358	or return;	584	reset_signals;
		585	&$cb
		586	}, @args;
359		587
360	aio_rename "$runtime~", $runtime	588	wantarray ? @res : $res[-1]
361	and return;	589	}
362		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
363	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	754	}
365		755
366	=back	756	=back
367		757
368	=cut	758	=cut
369		759
370	#############################################################################	760	#############################################################################
371		761
372	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
373		763
374	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
377		767
378	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	770	Deliantra).
381		771
382	=over 4	772	=over 4
383		773
384	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
385		775
…		…
429	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
430		820
431	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
433		823
434	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
436		826
437	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
438		828
439	=over 4	829	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	890	our @CB_MAP = ();
501		891
502	my %attachment;	892	my %attachment;
503		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
504	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
506		902
507	use sort 'stable';	903	use sort 'stable';
508		904
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
543		939
544	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		944
549	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	946	my $pkg = shift @arg;
551		947
552	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
582	}	978	}
583		979
584	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
585	} else {	981	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	983	}
588		984
589	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
590	}	986	}
591		987
…		…
593	if (ref $_[0]) {	989	if (ref $_[0]) {
594	_object_attach @_;	990	_object_attach @_;
595	} else {	991	} else {
596	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
597	}	993	}
		994	_recalc_want;
598	};	995	};
599		996
600	# all those should be optimised	997	# all those should be optimised
601	sub cf::attachable::detach {	998	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
606	reattach ($obj);	1003	reattach ($obj);
607	} else {	1004	} else {
608	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
609	}	1006	}
		1007	_recalc_want;
610	};	1008	};
611		1009
612	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
614		1012
…		…
629	";	1027	";
630	die if $@;	1028	die if $@;
631	}	1029	}
632		1030
633	our $override;	1031	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1033
636	sub override {	1034	sub override {
637	$override = 1;	1035	$override = 1;
638	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
639	}	1037	}
640		1038
641	sub do_invoke {	1039	sub do_invoke {
642	my $event = shift;	1040	my $event = shift;
643	my $callbacks = shift;	1041	my $callbacks = shift;
644		1042
645	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
646		1044
647	local $override;	1045	local $override;
648		1046
649	for (@$callbacks) {	1047	for (@$callbacks) {
650	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
659	}	1057	}
660		1058
661	0	1059	0
662	}	1060	}
663		1061
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1063
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1065
668	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
669		1067
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1071
674	=back	1072	=back
675		1073
676	=cut	1074	=cut
677		1075
678	#############################################################################	1076	#############################################################################
679	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
680		1120
681	sub reattach {	1121	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1123	my ($obj) = @_;
		1124
		1125	# no longer needed after getting rid of delete_package?
		1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1127
685	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
686		1129
687	@$registry = ();	1130	@$registry = ();
688		1131
…		…
703	cf::attachable->attach (	1146	cf::attachable->attach (
704	prio => -1000000,	1147	prio => -1000000,
705	on_instantiate => sub {	1148	on_instantiate => sub {
706	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
707		1150
708	$data = from_json $data;	1151	$data = decode_json $data;
709		1152
710	for (@$data) {	1153	for (@$data) {
711	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
712		1155
713	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1172	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
731		1174
732	sync_job {	1175	sync_job {
733	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
736		1180
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
740	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
741	close $fh;	1188	aio_close $fh;
742		1189
743	if (@$objs) {	1190	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
		1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
748	aio_fsync $fh;	1197	aio_fsync $fh;
		1198	}
749	close $fh;	1199	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
751	}	1201	}
752	} else {	1202	} else {
753	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
754	}	1204	}
755		1205
756	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1210	} else {
758	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
759	}	1212	}
760	} else {	1213	} else {
761	aio_unlink $filename;	1214	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
763	}	1216	}
764	}	1217	};
765	}	1218	}
766		1219
767	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
769		1222
…		…
781	or return;	1234	or return;
782		1235
783	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
785	or return;	1238	or return;
		1239
786	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
787	}	1242	}
788		1243
		1244	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
791	return ($data, $av);	1248	($data, $av)
792	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
793		1256
794	#############################################################################	1257	#############################################################################
795	# command handling &c	1258	# command handling &c
796		1259
797	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1274	}
812		1275
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1277
815	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
816		1283
817	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
818	called.	1285	called.
819		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
820	=cut	1298	=cut
821		1299
822	sub register_extcmd {	1300	sub register_extcmd {
823	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
824		1302
825	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
826	}	1304	}
827		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
828	cf::player->attach (	1314	cf::player->attach (
829	on_command => sub {	1315	on_unknown_command => sub {
830	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
831		1317
832	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
833	or return;	1319	or return;
834		1320
…		…
839	cf::override;	1325	cf::override;
840	},	1326	},
841	on_extcmd => sub {	1327	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
843		1329
844	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1331
846	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
852	} else {	1347	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1349	}
855		1350
856	cf::override;	1351	cf::override;
857	},	1352	},
858	);	1353	);
859		1354
		1355	# "readahead" all extensions
860	sub load_extension {	1356	sub cache_extensions {
861	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
862		1358
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1362	}
888	die $@;
889	}	1363	};
890		1364
891	push @EXTS, $pkg;	1365	$grp
892	}	1366	}
893		1367
894	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
895	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1373	next unless -r $path;
897	eval {	1374
898	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
899	1	1435	}
900	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
901	}	1446	};
902	}	1447	}
903		1448
904	#############################################################################	1449	#############################################################################
905	# load/save/clean perl data associated with a map
906		1450
907	*cf::mapsupport::on_clean = sub {	1451	=back
908	my ($map) = @_;
909
910	my $path = $map->tmpname;
911	defined $path or return;
912
913	unlink "$path.pst";
914	};
915
916	cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918	#############################################################################
919		1452
920	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
921		1454
922	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
923		1456
924	=cut	1457	=cut
925		1458
926	package cf::player;	1459	package cf::player;
927		1460
…		…
929		1462
930	=head3 cf::player	1463	=head3 cf::player
931		1464
932	=over 4	1465	=over 4
933		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
934	=item cf::player::find $login	1481	=item cf::player::find $login
935		1482
936	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
937		1484
938	=cut	1485	=cut
939		1486
940	sub playerdir($) {	1487	sub playerdir($) {
941	cf::localdir	1488	"$PLAYERDIR/"
942	. "/"
943	. cf::playerdir
944	. "/"
945	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
946	}	1490	}
947		1491
948	sub path($) {	1492	sub path($) {
949	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
950		1494
951	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
952	}	1496	}
953		1497
954	sub find_active($) {	1498	sub find_active($) {
955	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
956	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
959		1503
960	sub exists($) {	1504	sub exists($) {
961	my ($login) = @_;	1505	my ($login) = @_;
962		1506
963	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
964	or cf::sync_job { !aio_stat $login }	1508	or !aio_stat path $login
965	}	1509	}
966		1510
967	sub find($) {	1511	sub find($) {
968	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
969	my $login = $_[0];	1513	my $login = $_[0];
970		1514
971	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
972		1516
973	$cf::PLAYER{$_[0]} || do {	1517	$cf::PLAYER{$_[0]} || do {
974	my $pl = load_pl path $login	1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
975	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
976	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
977	}	1534	}
978	}	1535	}
979	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
980		1550
981	sub save($) {	1551	sub save($) {
982	my ($pl) = @_;	1552	my ($pl) = @_;
983		1553
984	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
989	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
990		1560
991	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
992	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
993		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
994	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
995	Coro::cede;	1570	cf::cede_to_tick;
996	}	1571	}
997		1572
998	sub new($) {	1573	sub new($) {
999	my ($login) = @_;	1574	my ($login) = @_;
1000		1575
…		…
1006	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1007		1582
1008	$self	1583	$self
1009	}	1584	}
1010		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1011	=item $pl->quit_character	1596	=item $pl->quit_character
1012		1597
1013	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1014	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1015		1600
1016	=cut	1601	=cut
1017		1602
1018	sub quit_character {	1603	sub quit_character {
1019	my ($pl) = @_;	1604	my ($pl) = @_;
1020		1605
		1606	my $name = $pl->ob->name;
		1607
1021	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1022	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1023		1610
1024	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1025	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1026	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1027	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1028		1617
1029	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1030	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
1031	aio_rename $path, $temp;	1620	aio_rename $path, $temp;
1032	delete $cf::PLAYER{$pl->ob->name};	1621	delete $cf::PLAYER{$pl->ob->name};
1033	$pl->destroy;	1622	$pl->destroy;
		1623
		1624	my $prefix = qr<^~\Q$name\E/>;
		1625
		1626	# nuke player maps
		1627	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1628
1034	IO::AIO::aio_rmtree $temp;	1629	IO::AIO::aio_rmtree $temp;
		1630	}
		1631
		1632	=item $pl->kick
		1633
		1634	Kicks a player out of the game. This destroys the connection.
		1635
		1636	=cut
		1637
		1638	sub kick {
		1639	my ($pl, $kicker) = @_;
		1640
		1641	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1642	$pl->killer ("kicked");
		1643	$pl->ns->destroy;
1035	}	1644	}
1036		1645
1037	=item cf::player::list_logins	1646	=item cf::player::list_logins
1038		1647
1039	Returns am arrayref of all valid playernames in the system, can take a	1648	Returns am arrayref of all valid playernames in the system, can take a
1040	while and may block, so not sync_job-capable, ever.	1649	while and may block, so not sync_job-capable, ever.
1041		1650
1042	=cut	1651	=cut
1043		1652
1044	sub list_logins {	1653	sub list_logins {
1045	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1654	my $dirs = aio_readdir $PLAYERDIR
1046	or return [];	1655	or return [];
1047		1656
1048	my @logins;	1657	my @logins;
1049		1658
1050	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1051	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1052	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1053	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1054		1669
1055	utf8::decode $login;	1670	utf8::decode $login;
1056	push @logins, $login;	1671	push @logins, $login;
1057	}	1672	}
1058		1673
…		…
1066		1681
1067	=cut	1682	=cut
1068		1683
1069	sub maps($) {	1684	sub maps($) {
1070	my ($pl) = @_;	1685	my ($pl) = @_;
		1686
		1687	$pl = ref $pl ? $pl->ob->name : $pl;
1071		1688
1072	my $files = aio_readdir playerdir $pl	1689	my $files = aio_readdir playerdir $pl
1073	or return;	1690	or return;
1074		1691
1075	my @paths;	1692	my @paths;
…		…
1077	for (@$files) {	1694	for (@$files) {
1078	utf8::decode $_;	1695	utf8::decode $_;
1079	next if /\.(?:pl|pst)$/;	1696	next if /\.(?:pl|pst)$/;
1080	next unless /^$PATH_SEP/o;	1697	next unless /^$PATH_SEP/o;
1081		1698
1082	push @paths, "~" . $pl->ob->name . "/" . $_;	1699	push @paths, cf::map::normalise "~$pl/$_";
1083	}	1700	}
1084		1701
1085	\@paths	1702	\@paths
1086	}	1703	}
1087		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1088	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1089		1710
1090	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1091		1712
1092	=cut	1713	=cut
1093		1714
1094	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1095	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1096		1717
1097	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1098
1099	$self->send ("ext " . cf::to_json \%msg);
1100	}	1719	}
1101		1720
1102	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
		1748	my ($path) = @_;
		1749
		1750	my ($match, $specificity);
		1751
		1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
		1760	}
1103		1761
1104	=back	1762	=back
1105
1106		1763
1107	=head3 cf::map	1764	=head3 cf::map
1108		1765
1109	=over 4	1766	=over 4
1110		1767
…		…
1114		1771
1115	use Fcntl;	1772	use Fcntl;
1116	use Coro::AIO;	1773	use Coro::AIO;
1117		1774
1118	use overload	1775	use overload
1119	'""' => \&as_string;	1776	'""' => \&as_string,
		1777	fallback => 1;
1120		1778
1121	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1123		1781
1124	sub generate_random_map {	1782	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1126		1786
1127	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1788	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1132	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1133	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1134	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1135	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1800	)
1141	}	1801	}
1142		1802
		1803	=item cf::map->register ($regex, $prio)
		1804
		1805	Register a handler for the map path matching the given regex at the
		1806	givne priority (higher is better, built-in handlers have priority 0, the
		1807	default).
		1808
		1809	=cut
		1810
1143	sub register {	1811	sub register {
1144	my (undef, $regex) = @_;	1812	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1813	my $pkg = caller;
1146		1814
1147	no strict;	1815	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1816	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1817
1150	$EXT_MAP{$pkg} = qr<$regex>;	1818	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1819	}
1152		1820
1153	# also paths starting with '/'	1821	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1822	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1823
		1824	sub thawer_merge {
		1825	my ($self, $merge) = @_;
		1826
		1827	# we have to keep some variables in memory intact
		1828	local $self->{path};
		1829	local $self->{load_path};
		1830
		1831	$self->SUPER::thawer_merge ($merge);
		1832	}
1155		1833
1156	sub normalise {	1834	sub normalise {
1157	my ($path, $base) = @_;	1835	my ($path, $base) = @_;
		1836
		1837	$path = "$path"; # make sure its a string
		1838
		1839	$path =~ s/\.map$//;
1158		1840
1159	# map plan:	1841	# map plan:
1160	#	1842	#
1161	# /! non-realised random map exit (special hack!)	1843	# /! non-realised random map exit (special hack!)
1162	# {... are special paths that are not being touched	1844	# {... are special paths that are not being touched
…		…
1190		1872
1191	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1873	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192		1874
1193	$path = normalise $path, $base;	1875	$path = normalise $path, $base;
1194		1876
1195	for my $pkg (keys %EXT_MAP) {	1877	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196	if ($path =~ $EXT_MAP{$pkg}) {	1878	if ($path =~ $EXT_MAP{$pkg}[1]) {
1197	my $self = bless cf::map::new, $pkg;	1879	my $self = bless cf::map::new, $pkg;
1198	$self->{path} = $path; $self->path ($path);	1880	$self->{path} = $path; $self->path ($path);
1199	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1200	return $self;	1882	return $self;
1201	}	1883	}
1202	}	1884	}
1203		1885
1204	Carp::carp "unable to resolve path '$path'.";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1205	()	1887	()
1206	}	1888	}
1207		1889
1208	sub init {	1890	sub init {
1209	my ($self) = @_;	1891	my ($self) = @_;
…		…
1220	# the displayed name, this is a one way mapping	1902	# the displayed name, this is a one way mapping
1221	sub visible_name {	1903	sub visible_name {
1222	&as_string	1904	&as_string
1223	}	1905	}
1224		1906
1225	# escape the /'s in the path
1226	sub _escaped_path {
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229	$path
1230	}
1231
1232	# the original (read-only) location	1907	# the original (read-only) location
1233	sub load_path {	1908	sub load_path {
1234	my ($self) = @_;	1909	my ($self) = @_;
1235		1910
1236	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1911	"$MAPDIR/$self->{path}.map"
1237	}	1912	}
1238		1913
1239	# the temporary/swap location	1914	# the temporary/swap location
1240	sub save_path {	1915	sub save_path {
1241	my ($self) = @_;	1916	my ($self) = @_;
1242		1917
1243	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1919	"$TMPDIR/$path.map"
1244	}	1920	}
1245		1921
1246	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1247	sub uniq_path {	1923	sub uniq_path {
1248	my ($self) = @_;	1924	my ($self) = @_;
1249		1925
1250	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$UNIQUEDIR/$path"
1251	}	1928	}
1252		1929
1253	# and all this just because we cannot iterate over	1930	sub decay_objects {
1254	# all maps in C++...
1255	sub change_all_map_light {
1256	my ($change) = @_;	1931	my ($self) = @_;
1257		1932
1258	$_->change_map_light ($change)	1933	return if $self->{deny_reset};
1259	for grep $_->outdoor, values %cf::MAP;	1934
		1935	$self->do_decay_objects;
1260	}	1936	}
1261		1937
1262	sub unlink_save {	1938	sub unlink_save {
1263	my ($self) = @_;	1939	my ($self) = @_;
1264		1940
1265	utf8::encode (my $save = $self->save_path);	1941	utf8::encode (my $save = $self->save_path);
1266	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1942	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1943	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1268	}	1944	}
1269		1945
1270	sub load_header_from($) {	1946	sub load_header_from($) {
1271	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1272		1948
1273	utf8::encode $path;	1949	utf8::encode $path;
1274	aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1275	or return;	1951	or return;
1276		1952
1277	$self->_load_header ($path)	1953	$self->_load_header ($f)
1278	or return;	1954	or return;
1279		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
		1958
1280	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1281		1960
1282	1	1961	1
1283	}	1962	}
1284		1963
1285	sub load_orig {	1964	sub load_header_orig {
1286	my ($self) = @_;	1965	my ($self) = @_;
1287		1966
1288	$self->load_header_from ($self->load_path)	1967	$self->load_header_from ($self->load_path)
1289	}	1968	}
1290		1969
1291	sub load_temp {	1970	sub load_header_temp {
1292	my ($self) = @_;	1971	my ($self) = @_;
1293		1972
1294	$self->load_header_from ($self->save_path)	1973	$self->load_header_from ($self->save_path)
		1974	}
		1975
		1976	sub prepare_temp {
		1977	my ($self) = @_;
		1978
		1979	$self->last_access ((delete $self->{last_access})
		1980	|| $cf::RUNTIME); #d#
		1981	# safety
		1982	$self->{instantiate_time} = $cf::RUNTIME
		1983	if $self->{instantiate_time} > $cf::RUNTIME;
		1984	}
		1985
		1986	sub prepare_orig {
		1987	my ($self) = @_;
		1988
		1989	$self->{load_original} = 1;
		1990	$self->{instantiate_time} = $cf::RUNTIME;
		1991	$self->last_access ($cf::RUNTIME);
		1992	$self->instantiate;
1295	}	1993	}
1296		1994
1297	sub load_header {	1995	sub load_header {
1298	my ($self) = @_;	1996	my ($self) = @_;
1299		1997
1300	if ($self->load_temp) {	1998	if ($self->load_header_temp) {
1301	$self->last_access ((delete $self->{last_access})	1999	$self->prepare_temp;
1302	|| $cf::RUNTIME); #d#
1303	# safety
1304	$self->{instantiate_time} = $cf::RUNTIME
1305	if $self->{instantiate_time} > $cf::RUNTIME;
1306	} else {	2000	} else {
1307	$self->load_orig	2001	$self->load_header_orig
1308	or return;	2002	or return;
1309		2003	$self->prepare_orig;
1310	$self->{load_original} = 1;
1311	$self->{instantiate_time} = $cf::RUNTIME;
1312	$self->last_access ($cf::RUNTIME);
1313	$self->instantiate;
1314	}	2004	}
		2005
		2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
		2008
		2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
1315		2011
1316	1	2012	1
1317	}	2013	}
1318		2014
1319	sub find;	2015	sub find;
1320	sub find {	2016	sub find {
1321	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1322		2018
1323	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1324		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1325	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1326		2023
1327	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1328	my $guard = cf::lock_acquire "map_find:$path";
1329	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1330	or return;	2026	or return;
1331		2027
1332	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1333		2029
1334	$map->load_header	2030	$map->load_header
1335	or return;	2031	or return;
1336		2032
1337	if ($map->should_reset) {	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2034	# doing this can freeze the server in a sync job, obviously
		2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1338	$map->reset;	2038	$map->reset;
1339	undef $guard;
1340	$map = find $path	2039	return find $path;
1341	or return;
1342	}	2040	}
1343		2041
1344	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1345	}	2043	}
1346	}	2044	}
		2045
		2046	sub pre_load { }
		2047	#sub post_load { } # XS
1347		2048
1348	sub load {	2049	sub load {
1349	my ($self) = @_;	2050	my ($self) = @_;
1350		2051
		2052	local $self->{deny_reset} = 1; # loading can take a long time
		2053
1351	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1352	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1353		2058
		2059	return unless $self->valid;
1354	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1355		2061
1356	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1357		2063
1358	$self->alloc;	2064	$self->alloc;
1359	$self->_load_objects ($self->{load_path}, 1)	2065
		2066	$self->pre_load;
		2067	cf::cede_to_tick;
		2068
		2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1360	or return;	2072	or return;
1361		2073
1362	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1363	if delete $self->{load_original};	2075	if delete $self->{load_original};
1364		2076
1365	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1366	utf8::encode $uniq;	2078	utf8::encode $uniq;
1367	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1368	$self->clear_unique_items;	2081	$self->clear_unique_items;
1369	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1370	}	2085	}
1371	}	2086	}
1372		2087
1373	Coro::cede;	2088	$f->resolve_delayed_derefs;
1374		2089
		2090	cf::cede_to_tick;
1375	# now do the right thing for maps	2091	# now do the right thing for maps
1376	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1377
1378	unless ($self->{deny_activate}) {
1379	$self->decay_objects;
1380	$self->fix_auto_apply;
1381	$self->update_buttons;
1382	Coro::cede;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2094	unless $self->difficulty;
1386	Coro::cede;	2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1387	$self->activate;	2102	$self->activate;
1388	}	2103	}
1389		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
1390	$self->in_memory (cf::MAP_IN_MEMORY);	2108	$self->in_memory (cf::MAP_ACTIVE);
1391	}	2109	}
1392		2110
		2111	$self->post_load;
		2112	}
		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1393	sub customise_for {	2117	sub customise_for {
1394	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1395		2119
1396	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1397	if $self->per_player;	2121	if $self->per_player;
1398		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
1399	$self	2126	$self
1400	}	2127	}
1401		2128
1402	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1403	sub load_diag {	2130	sub load_neighbours {
1404	my ($map) = @_;	2131	my ($map) = @_;
1405		2132
1406	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1407		2134
1408	for (0 .. 3) {	2135	for (0 .. 3) {
1409	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1410	or next;	2137	or next;
1411	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1412	or next;	2139	or next;
1413	$neigh->load;	2140	$neigh->load;
1414		2141
		2142	push @neigh,
1415	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1416	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1417	}	2145	}
1418		2146
1419	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1420	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1421	or next;	2150	or next;
1422	$neigh->load;	2151	$neigh->load;
1423	}	2152	}
1424	}	2153	}
1425		2154
…		…
1430	}	2159	}
1431		2160
1432	sub do_load_sync {	2161	sub do_load_sync {
1433	my ($map) = @_;	2162	my ($map) = @_;
1434		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1435	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1436	}	2168	}
1437		2169
1438	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1439	our $MAP_PREFETCHER = Coro::async {	2171	our $MAP_PREFETCHER = undef;
1440	while () {
1441	for my $path (keys %MAP_PREFETCH) {
1442	my $map = find $path
1443	or next;
1444	$map->load;
1445
1446	delete $MAP_PREFETCH{$path};
1447	}
1448	Coro::schedule;
1449	}
1450	};
1451		2172
1452	sub find_async {	2173	sub find_async {
1453	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1454		2175
1455	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1456		2177
1457	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2180	}
		2181
		2182	$MAP_PREFETCH{$path} |= $load;
		2183
		2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
		2187	while (%MAP_PREFETCH) {
		2188	while (my ($k, $v) = each %MAP_PREFETCH) {
		2189	if (my $map = find $k) {
		2190	$map->load if $v;
		2191	}
		2192
		2193	delete $MAP_PREFETCH{$k};
		2194	}
		2195	}
		2196	undef $MAP_PREFETCHER;
1459	}	2197	};
1460
1461	$MAP_PREFETCH{$path} = 0;
1462	$MAP_PREFETCHER->ready;	2198	$MAP_PREFETCHER->prio (6);
1463		2199
1464	()	2200	()
1465	}	2201	}
1466		2202
1467	sub save {	2203	sub save {
1468	my ($self) = @_;	2204	my ($self) = @_;
1469		2205
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1471		2207
1472	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1473		2209
1474	return unless $self->dirty;	2210	return unless $self->dirty;
1475		2211
…		…
1481	return if $self->{deny_save};	2217	return if $self->{deny_save};
1482		2218
1483	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1484		2220
1485	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1486	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1487	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1488		2227
1489	if ($uniq) {	2228	if ($uniq) {
1490	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1491	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1492	} else {	2231	} else {
…		…
1498	my ($self) = @_;	2237	my ($self) = @_;
1499		2238
1500	# save first because save cedes	2239	# save first because save cedes
1501	$self->save;	2240	$self->save;
1502		2241
1503	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1504		2243
1505	return if $self->players;	2244	return if $self->players;
1506	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1507	return if $self->{deny_save};	2246	return if $self->{deny_save};
1508		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1509	$self->clear;	2252	$self->clear;
1510	$self->in_memory (cf::MAP_SWAPPED);
1511	}	2253	}
1512		2254
1513	sub reset_at {	2255	sub reset_at {
1514	my ($self) = @_;	2256	my ($self) = @_;
1515		2257
1516	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1517	return 1e99 if $self->isa ("ext::map_per_player");
1518	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1519		2260
1520	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522		2263
…		…
1527	my ($self) = @_;	2268	my ($self) = @_;
1528		2269
1529	$self->reset_at <= $cf::RUNTIME	2270	$self->reset_at <= $cf::RUNTIME
1530	}	2271	}
1531		2272
1532	sub rename {
1533	my ($self, $new_path) = @_;
1534
1535	normalise $new_path;
1536
1537	$self->unlink_save;
1538
1539	delete $cf::MAP{$self->path};
1540	$self->{path} = $new_path; $self->path ($self->{path});
1541	$cf::MAP{$self->path} = $self;
1542
1543	$self->save;
1544	}
1545
1546	sub reset {	2273	sub reset {
1547	my ($self) = @_;	2274	my ($self) = @_;
1548		2275
1549	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1550		2277
1551	return if $self->players;	2278	return if $self->players;
1552	return if $self->isa ("ext::map_per_player");#d#
1553		2279
1554	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
		2281
		2282	$self->in_memory (cf::MAP_SWAPPED);
		2283
		2284	# need to save uniques path
		2285	unless ($self->{deny_save}) {
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2289	if $uniq;
		2290	}
1555		2291
1556	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1557		2293
		2294	$self->deactivate;
1558	$_->clear_links_to ($self) for values %cf::MAP;	2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->clear;
1559		2297
1560	$self->unlink_save;	2298	$self->unlink_save;
1561	$self->destroy;	2299	$self->destroy;
1562	}	2300	}
1563		2301
1564	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1565		2303
1566	sub nuke {	2304	sub nuke {
1567	my ($self) = @_;	2305	my ($self) = @_;
1568		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
		2310	delete $cf::MAP{$self->path};
		2311
		2312	$self->unlink_save;
		2313
		2314	bless $self, "cf::map";
		2315	delete $self->{deny_reset};
1569	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1570	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1571	$self->rename ("{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2319
		2320	$cf::MAP{$self->path} = $self;
		2321	}
		2322
1572	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1573	}	2360	}
1574		2361
1575	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1576		2363
1577	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1578	instantiated unique items. May block.	2365	instantiated unique items. May block.
1579		2366
1580	=cut	2367	=cut
1581		2368
1582	sub unique_maps() {	2369	sub unique_maps() {
1583	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2370	[
1584	or return;	2371	map {
1585
1586	my @paths;
1587
1588	for (@$files) {
1589	utf8::decode $_;	2372	utf8::decode $_;
1590	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1591	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1592		2375	? ()
1593	push @paths, $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1594	}	2378	]
1595
1596	\@paths
1597	}	2379	}
1598		2380
1599	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1600		2412
1601	=back	2413	=back
1602		2414
1603	=head3 cf::object	2415	=head3 cf::object
1604		2416
…		…
1608		2420
1609	=over 4	2421	=over 4
1610		2422
1611	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1612		2424
1613	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1614		2427
1615	=cut	2428	=cut
1616		2429
1617	sub inv_recursive_;	2430	sub inv_recursive_;
1618	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1621		2434
1622	sub inv_recursive {	2435	sub inv_recursive {
1623	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1624	}	2437	}
1625		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1626	package cf;	2467	package cf;
1627		2468
1628	=back	2469	=back
1629		2470
1630	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1636	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1637	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1638	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1639		2480
1640	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1641		2496
1642	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1643	# with dialog boxes.	2498	# with dialog boxes.
1644	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1645	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1647		2502
1648	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1649		2504
1650	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1651	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1652	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1653	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1654	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1655	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1656	}	2530	}
1657		2531
1658	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1659		2533
1660	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1673		2547
1674	=item $player_object->enter_link	2548	=item $player_object->enter_link
1675		2549
1676	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1677		2551
1678	The player should be reasonably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1679	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1680		2556
1681	Will never block.	2557	Will never block.
1682		2558
1683	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1684		2560
…		…
1692	=cut	2568	=cut
1693		2569
1694	sub link_map {	2570	sub link_map {
1695	unless ($LINK_MAP) {	2571	unless ($LINK_MAP) {
1696	$LINK_MAP = cf::map::find "{link}"	2572	$LINK_MAP = cf::map::find "{link}"
1697	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2573	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698	$LINK_MAP->load;	2574	$LINK_MAP->load;
1699	}	2575	}
1700		2576
1701	$LINK_MAP	2577	$LINK_MAP
1702	}	2578	}
…		…
1707	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1708		2584
1709	return if UNIVERSAL::isa $self->map, "ext::map_link";	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2586
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1713		2589
1714	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2591	}
1716		2592
1717	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1719		2597
1720	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1721		2599
1722	unless ($map) {	2600	unless ($map) {
1723	# restore original map position	2601	# restore original map position
…		…
1734	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1735	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1736		2614
1737	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1740		2618
1741	$map->load;	2619	$map->load;
1742	$map->load_diag;	2620	$map->load_neighbours;
1743		2621
1744	return unless $self->contr->active;	2622	return unless $self->contr->active;
		2623
		2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2625	$self->enter_map ($map, $x, $y);
		2626
		2627	# only activate afterwards, to support waiting in hooks
1745	$self->activate_recursive;	2628	$self->activate_recursive;
1746	$self->enter_map ($map, $x, $y);
1747	}	2629	}
1748		2630
1749	cf::player->attach (	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2632
1753	# abort map switching before logout	2633	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2634	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2636	the new (success) or old (failed) map position. In either case, $done will
1757	};	2637	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2638
1763	# try to abort aborted map switching on player login :)	2639	Note that $check will be called with a potentially non-loaded map, so if
1764	# should happen only on crashes	2640	it needs a loaded map it has to call C<< ->load >>.
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780		2641
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1784		2645
1785	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1787		2651
1788	$self->enter_link;	2652	$self->enter_link;
1789		2653
1790	(async {	2654	(async {
1791	my $map = cf::map::find $path;	2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
		2676	my $map = eval {
		2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1792	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
1793		2681	$map = $check->($map) if $check && $map;
1794	# warn "entering ", $map->path, " at ($x, $y)\n"	2682	} else {
1795	# if $map;
1796
1797	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
1798		2685
		2686	$map
		2687	};
		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
		2692	}
		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1799	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1800	})->prio (1);	2700	})->prio (1);
1801	}	2701	}
1802		2702
1803	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1804		2704
…		…
1806		2706
1807	sub parse_random_map_params {	2707	sub parse_random_map_params {
1808	my ($spec) = @_;	2708	my ($spec) = @_;
1809		2709
1810	my $rmp = { # defaults	2710	my $rmp = { # defaults
1811	xsize => 10,	2711	xsize => (cf::rndm 15, 40),
1812	ysize => 10,	2712	ysize => (cf::rndm 15, 40),
		2713	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2714	#layout => string,
1813	};	2715	};
1814		2716
1815	for (split /\n/, $spec) {	2717	for (split /\n/, $spec) {
1816	my ($k, $v) = split /\s+/, $_, 2;	2718	my ($k, $v) = split /\s+/, $_, 2;
1817		2719
…		…
1829	# that depends on the exit object	2731	# that depends on the exit object
1830		2732
1831	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
1832		2734
1833	if ($exit->map) {	2735	if ($exit->map) {
1834	$rmp->{region} = $exit->map->region_name;	2736	$rmp->{region} = $exit->region->name;
1835	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1836	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1837	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1838	}	2742	}
1839		2743
1840	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1841		2745
1842	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1843	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
		2748	my $meta = "$RANDOMDIR/$md5.meta";
1844		2749
1845	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
		2752	undef $fh;
		2753	aio_rename "$meta~", $meta;
1847		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1848	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1849	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1850	}	2761	}
1851	}	2762	}
1852		2763
1853	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1854	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
…		…
1856	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1857		2768
1858	$self->enter_link;	2769	$self->enter_link;
1859		2770
1860	(async {	2771	(async {
1861	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1862	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
1863	prepare_random_map $exit	2781	prepare_random_map $exit
1864	if $exit->slaying eq "/!";	2782	if $exit->slaying eq "/!";
		2783	}
1865		2784
1866	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1867	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
1868		2788
		2789	$self->goto ($map, $x, $y);
		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1869	1;	2795	1
1870	}) {	2796	}) {
1871	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1872	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1873	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
1874	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1875		2801
1876	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1877	$self->leave_link;	2803	$self->leave_link;
1878	}	2804	}
1879	})->prio (1);	2805	})->prio (1);
…		…
1892		2818
1893	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1894	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1895		2821
1896	utf8::encode $text;	2822	utf8::encode $text;
1897	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1898	}	2824	}
1899		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
1900		3047
1901	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
1902		3049
1903	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
1904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1906		3053
1907	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
1908	reliable at some point in the future.	3055	become reliable at some point in the future.
1909		3056
1910	=cut	3057	=cut
1911		3058
1912	sub cf::client::query {	3059	sub cf::client::query {
1913	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
1921	utf8::encode $text;	3068	utf8::encode $text;
1922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1923		3070
1924	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
1925	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
1926	}	3075	}
1927		3076
1928	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
1929	on_reply => sub {	3083	on_reply => sub {
1930	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
1931		3085
1932	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
1933	# get handled first	3087	# get handled first
1934	my $queue = delete $ns->{query_queue}	3088	my $queue = delete $ns->{query_queue}
1935	or return; # be conservative, not sure how that can happen, but we saw a crash here	3089	or return; # be conservative, not sure how that can happen, but we saw a crash here
1936		3090
1937	(shift @$queue)->[1]->($msg);	3091	(shift @$queue)->[1]->($msg);
		3092	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938		3093
1939	push @{ $ns->{query_queue} }, @$queue;	3094	push @{ $ns->{query_queue} }, @$queue;
1940		3095
1941	if (@{ $ns->{query_queue} } == @$queue) {	3096	if (@{ $ns->{query_queue} } == @$queue) {
1942	if (@$queue) {	3097	if (@$queue) {
…		…
1944	} else {	3099	} else {
1945	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1946	}	3101	}
1947	}	3102	}
1948	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
1949	);	3130	);
1950		3131
1951	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
1952		3133
1953	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
1969		3150
1970	$coro	3151	$coro
1971	}	3152	}
1972		3153
1973	cf::client->attach (	3154	cf::client->attach (
1974	on_destroy => sub {	3155	on_client_destroy => sub {
1975	my ($ns) = @_;	3156	my ($ns) = @_;
1976		3157
1977	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1978	},	3159	},
1979	);	3160	);
…		…
1994	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
1995	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
1996		3177
1997	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
1998		3179
1999	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2000		3185
2001	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2002		3187
2003	=pod	3188	=pod
2004		3189
2005	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2006		3191
2007	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2008	cf::object::player player	3197	cf::object::player
2009	cf::player peaceful	3198	player
2010	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2011		3205
2012	=cut	3206	=cut
2013		3207
2014	for (	3208	for (
2015	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2016	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2017	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2018	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2019	) {	3215	) {
2020	no strict 'refs';	3216	no strict 'refs';
2021	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2022	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2040		3236
2041	my $qcode = $code;	3237	my $qcode = $code;
2042	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2043	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2044		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2045	local $_;	3244	local $_;
2046	local @safe::cf::_safe_eval_args = values %vars;
2047		3245
2048	my $eval =	3246	my $eval =
2049	"do {\n"	3247	"do {\n"
2050	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2051	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2052	. $code	3250	. $code
2053	. "\n}"	3251	. "\n}"
2054	;	3252	;
2055		3253
		3254	if ($CFG{safe_eval}) {
2056	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2057	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2058	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2059		3263
2060	if ($@) {	3264	if ($@) {
2061	warn "$@";	3265	warn "$@";
2062	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2063	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2082	=cut	3286	=cut
2083		3287
2084	sub register_script_function {	3288	sub register_script_function {
2085	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2086		3290
2087	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2088	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2089	}	3293	}
2090		3294
2091	=back	3295	=back
2092		3296
2093	=cut	3297	=cut
2094		3298
2095	#############################################################################	3299	#############################################################################
		3300	# the server's init and main functions
2096		3301
2097	=head2 EXTENSION DATABASE SUPPORT	3302	sub load_facedata($) {
		3303	my ($path) = @_;
2098		3304
2099	Crossfire maintains a very simple database for extension use. It can	3305	# HACK to clear player env face cache, we need some signal framework
2100	currently store anything that can be serialised using Storable, which	3306	# for this (global event?)
2101	excludes objects.	3307	%ext::player_env::MUSIC_FACE_CACHE = ();
2102		3308
2103	The parameter C<$family> should best start with the name of the extension	3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2104	using it, it should be unique.
2105		3310
2106	=over 4	3311	warn "loading facedata from $path\n";
2107		3312
2108	=item $hashref = cf::db_get $family	3313	my $facedata;
		3314	0 < aio_load $path, $facedata
		3315	or die "$path: $!";
2109		3316
2110	Return a hashref for use by the extension C<$family>, which can be	3317	$facedata = Coro::Storable::thaw $facedata;
2111	modified. After modifications, you have to call C<cf::db_dirty> or
2112	C<cf::db_sync>.
2113		3318
2114	=item $value = cf::db_get $family => $key	3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2115		3321
2116	Returns a single value from the database	3322	# patch in the exptable
2117		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2118	=item cf::db_put $family => $hashref	3324	$facedata->{resource}{"res/exp_table"} = {
2119		3325	type => FT_RSRC,
2120	Stores the given family hashref into the database. Updates are delayed, if	3326	data => $exp_table,
2121	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3327	hash => (Digest::MD5::md5 $exp_table),
2122
2123	=item cf::db_put $family => $key => $value
2124
2125	Stores the given C<$value> in the family hash. Updates are delayed, if you
2126	want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128	=item cf::db_dirty
2129
2130	Marks the database as dirty, to be updated at a later time.
2131
2132	=item cf::db_sync
2133
2134	Immediately write the database to disk I<if it is dirty>.
2135
2136	=cut
2137
2138	our $DB;
2139
2140	{
2141	my $path = cf::localdir . "/database.pst";
2142
2143	sub db_load() {
2144	$DB = stat $path ? Storable::retrieve $path : { };
2145	}
2146
2147	my $pid;
2148
2149	sub db_save() {
2150	waitpid $pid, 0 if $pid;
2151	if (0 == ($pid = fork)) {
2152	$DB->{_meta}{version} = 1;
2153	Storable::nstore $DB, "$path~";
2154	rename "$path~", $path;
2155	cf::_exit 0 if defined $pid;
2156	}
2157	}
2158
2159	my $dirty;
2160
2161	sub db_sync() {
2162	db_save if $dirty;
2163	undef $dirty;
2164	}
2165
2166	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167	db_sync;
2168	});	3328	};
		3329	cf::cede_to_tick;
2169		3330
2170	sub db_dirty() {
2171	$dirty = 1;
2172	$idle->start;
2173	}	3331	{
		3332	my $faces = $facedata->{faceinfo};
2174		3333
2175	sub db_get($;$) {	3334	while (my ($face, $info) = each %$faces) {
2176	@_ >= 2	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2177	? $DB->{$_[0]}{$_[1]}
2178	: ($DB->{$_[0]} ||= { })
2179	}
2180		3336
2181	sub db_put($$;$) {	3337	cf::face::set_visibility $idx, $info->{visibility};
2182	if (@_ >= 3) {	3338	cf::face::set_magicmap $idx, $info->{magicmap};
2183	$DB->{$_[0]}{$_[1]} = $_[2];	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2184	} else {	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2185	$DB->{$_[0]} = $_[1];
2186	}
2187	db_dirty;
2188	}
2189		3341
2190	cf::global->attach (	3342	cf::cede_to_tick;
2191	prio => 10000,
2192	on_cleanup => sub {
2193	db_sync;
2194	},	3343	}
2195	);
2196	}
2197		3344
2198	#############################################################################	3345	while (my ($face, $info) = each %$faces) {
2199	# the server's main()	3346	next unless $info->{smooth};
2200		3347
2201	sub cfg_load {	3348	my $idx = cf::face::find $face
		3349	or next;
		3350
		3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3354	} else {
		3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
		3392	1
		3393	}
		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
		3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
		3462	sub reload_resources {
		3463	warn "reloading resource files...\n";
		3464
		3465	reload_facedata;
		3466	reload_archetypes;
		3467	reload_regions;
		3468	reload_treasures;
		3469
		3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
2202	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2203	or return;	3477	or return;
2204		3478
2205	local $/;	3479	local $/;
2206	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2207		3481
2208	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2209		3483
2210	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2211	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2215	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2216	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2217	};	3491	};
2218	warn $@ if $@;	3492	warn $@ if $@;
2219	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2220	}	3524	}
2221		3525
2222	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2223	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2224	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2225	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2226	async { Event::one_event };	3544	(async {
		3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
		3547	})->prio (Coro::PRIO_MAX);
2227	};	3548	};
2228		3549
2229	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
2230	db_load;	3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
		3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2231	load_extensions;	3568	load_extensions;
2232	Event::loop;	3569
		3570	utime time, time, $RUNTIMEFILE;
		3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2233	}	3580	}
2234		3581
2235	#############################################################################	3582	#############################################################################
2236	# initialisation and cleanup	3583	# initialisation and cleanup
2237		3584
2238	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2239	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2240	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2241	Event->signal (	3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2242	data => WF_AUTOCANCEL,
2243	signal => $signal,
2244	cb => sub {
2245	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2246	},
2247	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
2248	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2249	}	3681	}
2250		3682
2251	sub emergency_save() {	3683	sub emergency_save() {
2252	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2253		3685
2254	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2255		3687
2256	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2257	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2258	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2259	# and maps saved/Destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2260	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2261	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2262	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2263	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2264	$pl->save;	3702	$pl->save;
2265	}	3703	}
2266	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2267		3705
2268	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2269	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2270	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2271	$map->valid or next;	3709	$map->valid or next;
2272	$map->save;	3710	$map->save;
2273	}	3711	}
2274	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
		3713
		3714	warn "emergency_perl_save: begin database checkpoint\n";
		3715	BDB::db_env_txn_checkpoint $DB_ENV;
		3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2275	};	3721	};
2276		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2277	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2278	}	3729	}
2279		3730
		3731	sub post_cleanup {
		3732	my ($make_core) = @_;
		3733
		3734	warn Carp::longmess "post_cleanup backtrace"
		3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
2280	sub reload() {	3767	sub do_reload_perl() {
2281	# can/must only be called in main	3768	# can/must only be called in main
2282	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2283	warn "can only reload from main coroutine\n";	3770	warn "can only reload from main coroutine";
2284	return;	3771	return;
2285	}	3772	}
2286		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2287	warn "reloading...";	3779	warn "reloading...";
2288		3780
2289	warn "freezing server";	3781	warn "entering sync_job";
2290	my $guard = freeze_mainloop;	3782
		3783	cf::sync_job {
		3784	cf::write_runtime_sync; # external watchdog should not bark
2291	cf::emergency_save;	3785	cf::emergency_save;
		3786	cf::write_runtime_sync; # external watchdog should not bark
2292		3787
2293	warn "sync database to disk";	3788	warn "syncing database to disk";
2294	cf::db_sync;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2295	IO::AIO::flush;
2296		3790
2297	eval {
2298	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2299		3792
2300	warn "cancel all watchers";	3793	warn "flushing outstanding aio requests";
2301	for (Event::all_watchers) {	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2302	$_->cancel if $_->data & WF_AUTOCANCEL;	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2303	}
2304
2305	warn "cancel all extension coros";
2306	$_->cancel for values %EXT_CORO;
2307	%EXT_CORO = ();
2308
2309	warn "remove commands";
2310	%COMMAND = ();
2311
2312	warn "remove ext commands";
2313	%EXTCMD = ();
2314
2315	warn "unload/nuke all extensions";
2316	for my $pkg (@EXTS) {
2317	warn "... unloading $pkg";
2318
2319	if (my $cb = $pkg->can ("unload")) {
2320	eval {
2321	$cb->($pkg);
2322	1
2323	} or warn "$pkg unloaded, but with errors: $@";
2324	}	3796	}
2325		3797
		3798	warn "cancelling all extension coros";
		3799	$_->cancel for values %EXT_CORO;
		3800	%EXT_CORO = ();
		3801
		3802	warn "removing commands";
		3803	%COMMAND = ();
		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2326	warn "... nuking $pkg";	3811	warn "... unloading $pkg";
2327	Symbol::delete_package $pkg;
2328	}
2329		3812
2330	warn "unload all perl modules loaded from $LIBDIR";
2331	while (my ($k, $v) = each %INC) {
2332	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333
2334	warn "removing <$k>";
2335	delete $INC{$k};
2336
2337	$k =~ s/\.pm$//;
2338	$k =~ s/\//::/g;
2339
2340	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2341	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2342	}	3822	}
2343		3823
2344	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2345	}	3839	}
2346		3840
2347	warn "get rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2348	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2349	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350		3844
2351	warn "unload cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2352	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2353		3848
2354	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2355	# and global variables created in xs	3850	# and global variables created in xs
2356	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2357		3852
		3853	warn "unload completed, starting to reload now";
		3854
2358	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2359	require cf;	3856	require cf;
2360	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2361		3858
2362	warn "load config and database again";	3859	warn "loading config and database again";
2363	cf::cfg_load;	3860	cf::reload_config;
2364	cf::db_load;
2365		3861
2366	warn "load extensions";	3862	warn "loading extensions";
2367	cf::load_extensions;	3863	cf::load_extensions;
2368		3864
		3865	if ($REATTACH_ON_RELOAD) {
2369	warn "reattach attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2370	_global_reattach;	3867	_global_reattach; # objects, sockets
2371	warn "reattach attachments to maps";	3868	warn "reattaching attachments to maps";
2372	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
		3870	warn "reattaching attachments to players";
		3871	reattach $_ for values %PLAYER;
		3872	}
		3873
		3874	warn "running post_init jobs";
		3875	(pop @POST_INIT)->(1) while @POST_INIT;
		3876
		3877	warn "leaving sync_job";
		3878
		3879	1
		3880	} or do {
		3881	warn $@;
		3882	cf::cleanup "error while reloading, exiting.";
		3883	};
		3884
		3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
2373	};	3906	};
2374		3907	}
2375	if ($@) {
2376	warn $@;
2377	warn "error while reloading, exiting.";
2378	exit 1;
2379	}
2380
2381	warn "reloaded";
2382	};
2383		3908
2384	register_command "reload" => sub {	3909	register_command "reload" => sub {
2385	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2386		3911
2387	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2388	$who->message ("start of reload.");
2389	reload;
2390	$who->message ("end of reload.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
		3916	reload_perl;
		3917	};
2391	}	3918	}
2392	};	3919	};
2393		3920
2394	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2395		3922
2396	$TICK_WATCHER = Event->timer (	3923	my $bug_warning = 0;
2397	reentrant => 0,
2398	prio => 0,
2399	at => $NEXT_TICK || $TICK,
2400	data => WF_AUTOCANCEL,
2401	cb => sub {
2402	$NOW = Event::time;
2403		3924
		3925	our @WAIT_FOR_TICK;
		3926	our @WAIT_FOR_TICK_BEGIN;
		3927
		3928	sub wait_for_tick {
		3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3930
		3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
		3945	if ($Coro::current != $Coro::main) {
		3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3947	unless ++$bug_warning > 10;
		3948	return;
		3949	}
		3950
2404	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2405	$RUNTIME += $TICK;
2406	$NEXT_TICK += $TICK;
2407		3952
2408	$WAIT_FOR_TICK->broadcast;	3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2409	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2410		3954
2411	# if we are delayed by four ticks or more, skip them all	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2412	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2413		3957	Coro::async_pool {
2414	$TICK_WATCHER->at ($NEXT_TICK);	3958	$Coro::current->{desc} = "runtime saver";
2415	$TICK_WATCHER->start;
2416	},
2417	);
2418
2419	IO::AIO::max_poll_time $TICK * 0.2;
2420
2421	Event->io (
2422	fd => IO::AIO::poll_fileno,
2423	poll => 'r',
2424	prio => 5,
2425	data => WF_AUTOCANCEL,
2426	cb => \&IO::AIO::poll_cb,
2427	);
2428
2429	Event->timer (
2430	data => WF_AUTOCANCEL,
2431	after => 0,
2432	interval => 10,
2433	cb => sub {
2434	(Coro::unblock_sub {
2435	write_runtime	3959	write_runtime_sync
2436	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2437	})->();	3961	};
2438	},	3962	}
2439	);	3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
		3980	}
		3981	}
		3982
		3983	{
		3984	# configure BDB
		3985
		3986	BDB::min_parallel 16;
		3987	BDB::max_poll_reqs $TICK * 0.1;
		3988	$AnyEvent::BDB::WATCHER->priority (1);
		3989
		3990	unless ($DB_ENV) {
		3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3997
		3998	cf::sync_job {
		3999	eval {
		4000	BDB::db_env_open
		4001	$DB_ENV,
		4002	$BDBDIR,
		4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4005	0666;
		4006
		4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4008	};
		4009
		4010	cf::cleanup "db_env_open(db): $@" if $@;
		4011	};
		4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
		4023	}
		4024
		4025	{
		4026	# configure IO::AIO
		4027
		4028	IO::AIO::min_parallel 8;
		4029	IO::AIO::max_poll_time $TICK * 0.1;
		4030	undef $AnyEvent::AIO::WATCHER;
		4031	}
		4032
		4033	my $_log_backtrace;
		4034
		4035	sub _log_backtrace {
		4036	my ($msg, @addr) = @_;
		4037
		4038	$msg =~ s/\n//;
		4039
		4040	# limit the # of concurrent backtraces
		4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
		4072	}
		4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
2440		4078
2441	END { cf::emergency_save }	4079	END { cf::emergency_save }
2442		4080
2443	1	4081	1
2444		4082

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