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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC vs.
Revision 1.513 by root, Mon Apr 12 05:22:38 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;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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 $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	118	our $NEXT_TICK;
52	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
53		127
54	our %CFG;	128	our %CFG;
55		129
56	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
58		133
59	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		137
67	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
70	binmode STDOUT;	151	binmode STDOUT;
71	binmode STDERR;	152	binmode STDERR;
72		153
73	# read virtual server time, if available	154	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
78	}	159	}
79		160
80	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	162
82	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		165
86	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		180
88	#############################################################################	181	#############################################################################
89		182
90	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
91		184
…		…
98	=item $cf::RUNTIME	191	=item $cf::RUNTIME
99		192
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	194	every server tick.
102		195
103	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		199
105	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
107		204
108	=item $cf::NOW	205	=item $cf::NOW
109		206
110	The time of the last (current) server tick.	207	The time of the last (current) server tick.
111		208
112	=item $cf::TICK	209	=item $cf::TICK
113		210
114	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
115		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
116	=item %cf::CFG	223	=item %cf::CFG
117		224
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	226	from wherever your confdir points to.
120		227
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		229
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	231	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
127		245
128	=back	246	=back
129		247
130	=cut	248	=cut
131		249
132	BEGIN {	250	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	251	my $msg = join "", @_;
135	utf8::encode $msg;
136		252
137	$msg .= "\n"	253	$msg .= "\n"
138	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
139		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
140	LOG llevError, $msg;	258	LOG llevError, $msg;
141	};	259	};
142	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
143		274
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		282
151	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	284	# within the Safe compartment.
153	for my $pkg (qw(	285	for my $pkg (qw(
154	cf::global cf::attachable	286	cf::global cf::attachable
155	cf::object cf::object::player	287	cf::object cf::object::player
156	cf::client cf::player	288	cf::client cf::player
157	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
158	cf::map cf::party cf::region	291	cf::party cf::region
159	)) {	292	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	294	}
163		295
164	$Event::DIED = sub {	296	$EV::DIED = sub {
165	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
166	};	298	};
		299
		300	#############################################################################
167		301
168	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
169		303
170	=over 4	304	=over 4
171		305
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	325	$d
192	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
193	}	327	}
194		328
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
198		330
199	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
200		332
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
209		334
210	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
211		336
212	=cut	337	=cut
213		338
214	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
216	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
217	}	356	}
218		357
219	=item cf::lock_wait $string	358	=item cf::lock_wait $string
220		359
221	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
222		361
223	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
224		363
225	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
228	returned.	367	returned.
229		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
230	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
232		374
233	=cut	375	=item $locked = cf::lock_active $string
234		376
235	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
236		382
237	sub lock_wait($) {	383	sub lock_wait($) {
238	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	385	}
246		386
247	sub lock_acquire($) {	387	sub lock_acquire($) {
248	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
249		390
250	# wait, to be sure we are not locked	391	sub lock_active($) {
251	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	393	}
260		394
261	sub freeze_mainloop {	395	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
263		397
264	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	399	}
266	$WRITE_RUNTIME_WATCHER->start;	400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
267	};	465	}
268	$WRITE_RUNTIME_WATCHER->stop;	466	};
269	$TICK_WATCHER->stop;	467
270	$guard	468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
271	}	481	}
272		482
273	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
274		484
275	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		490
281	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
282		492
283	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
284		494
285	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
288		499
289	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
292	fast or be very important.	503	fast or be very important.
…		…
295		506
296	sub sync_job(&) {	507	sub sync_job(&) {
297	my ($job) = @_;	508	my ($job) = @_;
298		509
299	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
300	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
302		515
303	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	517
305	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
306		519
307	my $busy = 1;	520	my $busy = 1;
308	my @res;	521	my @res;
309		522
310	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	525	@res = eval { $job->() };
312	warn $@ if $@;	526	warn $@ if $@;
313	undef $busy;	527	undef $busy;
314	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
315		529
316	while ($busy) {	530	while ($busy) {
317	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
318	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
319		541
320	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
321	} else {	543	} else {
322	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
323		545
…		…
343	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
344		566
345	$coro	567	$coro
346	}	568	}
347		569
348	sub write_runtime {	570	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		571
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	Executes the given code block with the given arguments in a seperate
352	or return;	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
353		576
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	577	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		578
358	aio_fsync $fh	579	sub fork_call(&@) {
359	and return;	580	my ($cb, @args) = @_;
360		581
361	close $fh	582	# we seemingly have to make a local copy of the whole thing,
362	or return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
363		585
364	aio_rename "$runtime~", $runtime	586	my @res = Coro::Util::fork_eval {
365	and return;	587	reset_signals;
		588	&$cb
		589	}, @args;
366		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	=item $coin = coin_from_name $name
		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
		648	};
		649	cf::cleanup "db_open(db): $@" if $@;
		650
		651	$db
		652	}
		653
		654	our $DB;
		655
		656	sub db_init {
		657	cf::sync_job {
		658	$DB ||= db_table "db";
		659	};
		660	}
		661
		662	sub db_get($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
367	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
		746	}
		747
		748	=item cf::datalog type => key => value, ...
		749
		750	Log a datalog packet of the given type with the given key-value pairs.
		751
		752	=cut
		753
		754	sub datalog($@) {
		755	my ($type, %kv) = @_;
		756	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	757	}
369		758
370	=back	759	=back
371		760
372	=cut	761	=cut
373		762
374	#############################################################################	763	#############################################################################
375		764
376	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
377		766
378	Many objects in crossfire are so-called attachable objects. That means you can	767	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
381		770
382	In the following description, CLASS can be any of C<global>, C<object>	771	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	773	Deliantra).
385		774
386	=over 4	775	=over 4
387		776
388	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
389		778
…		…
433	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
434		823
435	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
437		826
438	Some classes such as crossfire maps and objects can specify attachments	827	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	828	that are attached at load/instantiate time, thus the need for a name.
440		829
441	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
442		831
443	=over 4	832	=over 4
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	892	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	893	our @CB_MAP = ();
505		894
506	my %attachment;	895	my %attachment;
507		896
		897	sub cf::attachable::thawer_merge {
		898	# simply override everything except _meta
		899	local $_[0]{_meta};
		900	%{$_[0]} = %{$_[1]};
		901	}
		902
508	sub _attach_cb($$$$) {	903	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	904	my ($registry, $event, $prio, $cb) = @_;
510		905
511	use sort 'stable';	906	use sort 'stable';
512		907
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
547		942
548	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		947
553	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	949	my $pkg = shift @arg;
555		950
556	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
586	}	981	}
587		982
588	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
589	} else {	984	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	986	}
592		987
593	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
594	}	989	}
595		990
…		…
597	if (ref $_[0]) {	992	if (ref $_[0]) {
598	_object_attach @_;	993	_object_attach @_;
599	} else {	994	} else {
600	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
601	}	996	}
		997	_recalc_want;
602	};	998	};
603		999
604	# all those should be optimised	1000	# all those should be optimised
605	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
610	reattach ($obj);	1006	reattach ($obj);
611	} else {	1007	} else {
612	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
613	}	1009	}
		1010	_recalc_want;
614	};	1011	};
615		1012
616	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
618		1015
…		…
633	";	1030	";
634	die if $@;	1031	die if $@;
635	}	1032	}
636		1033
637	our $override;	1034	our $override;
638	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
639		1036
640	sub override {	1037	sub override {
641	$override = 1;	1038	$override = 1;
642	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
643	}	1040	}
644		1041
645	sub do_invoke {	1042	sub do_invoke {
646	my $event = shift;	1043	my $event = shift;
647	my $callbacks = shift;	1044	my $callbacks = shift;
648		1045
649	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
650		1047
651	local $override;	1048	local $override;
652		1049
653	for (@$callbacks) {	1050	for (@$callbacks) {
654	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
663	}	1060	}
664		1061
665	0	1062	0
666	}	1063	}
667		1064
668	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
669		1066
670	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
671		1068
672	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
673		1070
674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
675	removed in future versions), and there is no public API to access override	1072	removed in future versions), and there is no public API to access override
676	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		1074
678	=back	1075	=back
679		1076
680	=cut	1077	=cut
681		1078
682	#############################################################################	1079	#############################################################################
683	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
684		1123
685	sub reattach {	1124	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	1126	my ($obj) = @_;
		1127
		1128	# no longer needed after getting rid of delete_package?
		1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		1130
689	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
690		1132
691	@$registry = ();	1133	@$registry = ();
692		1134
…		…
707	cf::attachable->attach (	1149	cf::attachable->attach (
708	prio => -1000000,	1150	prio => -1000000,
709	on_instantiate => sub {	1151	on_instantiate => sub {
710	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
711		1153
712	$data = from_json $data;	1154	$data = decode_json $data;
713		1155
714	for (@$data) {	1156	for (@$data) {
715	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
716		1158
717	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
733	sub object_freezer_save {	1175	sub object_freezer_save {
734	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
735		1177
736	sync_job {	1178	sync_job {
737	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
738	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
739	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
740		1183
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1187	if ($cf::USE_FSYNC) {
		1188	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;
744	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
745	close $fh;	1191	aio_close $fh;
746		1192
747	if (@$objs) {	1193	if (@$objs) {
748	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
749	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	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;
752	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
753	close $fh;	1202	aio_close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
755	}	1204	}
756	} else {	1205	} else {
757	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
758	}	1207	}
759		1208
760	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
761	} else {	1213	} else {
762	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
763	}	1215	}
764	} else {	1216	} else {
765	aio_unlink $filename;	1217	aio_unlink $filename;
766	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
767	}	1219	}
768	}	1220	};
769	}	1221	}
770		1222
771	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
772	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
773		1225
…		…
785	or return;	1237	or return;
786		1238
787	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
788	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
789	or return;	1241	or return;
		1242
790	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
791	}	1245	}
792		1246
		1247	utf8::decode (my $decname = $filename);
793	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
795	return ($data, $av);	1251	($data, $av)
796	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
797		1259
798	#############################################################################	1260	#############################################################################
799	# command handling &c	1261	# command handling &c
800		1262
801	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
814	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
815	}	1277	}
816		1278
817	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
818		1280
819	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
820		1286
821	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
822	called.	1288	called.
823		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
824	=cut	1301	=cut
825		1302
826	sub register_extcmd {	1303	sub register_extcmd {
827	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
828		1305
829	$EXTCMD{$name} = $cb;	1306	$EXTCMD{$name} = $cb;
830	}	1307	}
831		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
		1316
832	cf::player->attach (	1317	cf::player->attach (
833	on_command => sub {	1318	on_unknown_command => sub {
834	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
835		1320
836	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
837	or return;	1322	or return;
838		1323
…		…
843	cf::override;	1328	cf::override;
844	},	1329	},
845	on_extcmd => sub {	1330	on_extcmd => sub {
846	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
847		1332
848	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
849		1334
850	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
851	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
852	if (my %reply = $cb->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
853	$pl->ext_reply ($msg->{msgid}, %reply);
854	}
855	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
856	} else {	1350	} else {
857	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
858	}	1352	}
859		1353
860	cf::override;	1354	cf::override;
861	},	1355	},
862	);	1356	);
863		1357
		1358	# "readahead" all extensions
864	sub load_extension {	1359	sub cache_extensions {
865	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
866		1361
867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
868	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
869	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
870	$pkg =~ s/[^[:word:]]/_/g;
871	$pkg = "ext::$pkg";
872
873	warn "... loading '$path' into '$pkg'\n";
874
875	open my $fh, "<:utf8", $path
876	or die "$path: $!";
877
878	my $source =
879	"package $pkg; use strict; use utf8;\n"
880	. "#line 1 \"$path\"\n{\n"
881	. (do { local $/; <$fh> })
882	. "\n};\n1";
883
884	unless (eval $source) {
885	my $msg = $@ ? "$path: $@\n"
886	: "extension disabled.\n";
887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
888	warn $@;
889	warn "mandatory extension failed to load, exiting.\n";
890	exit 1;
891	}	1365	}
892	die $@;
893	}	1366	};
894		1367
895	push @EXTS, $pkg;	1368	$grp
896	}	1369	}
897		1370
898	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
899	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
900	next unless -r $ext;	1376	next unless -r $path;
901	eval {	1377
902	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
903	1	1438	}
904	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
905	}	1449	};
906	}	1450	}
907		1451
908	#############################################################################	1452	#############################################################################
909		1453
		1454	=back
		1455
910	=head2 CORE EXTENSIONS	1456	=head2 CORE EXTENSIONS
911		1457
912	Functions and methods that extend core crossfire objects.	1458	Functions and methods that extend core deliantra objects.
913		1459
914	=cut	1460	=cut
915		1461
916	package cf::player;	1462	package cf::player;
917		1463
…		…
919		1465
920	=head3 cf::player	1466	=head3 cf::player
921		1467
922	=over 4	1468	=over 4
923		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
		1483
924	=item cf::player::find $login	1484	=item cf::player::find $login
925		1485
926	Returns the given player object, loading it if necessary (might block).	1486	Returns the given player object, loading it if necessary (might block).
927		1487
928	=cut	1488	=cut
929		1489
930	sub playerdir($) {	1490	sub playerdir($) {
931	cf::localdir	1491	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1492	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1493	}
937		1494
938	sub path($) {	1495	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1496	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1497
941	(playerdir $login) . "/$login.pl"	1498	(playerdir $login) . "/playerdata"
942	}	1499	}
943		1500
944	sub find_active($) {	1501	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1502	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1503	and $cf::PLAYER{$_[0]}->active
…		…
949		1506
950	sub exists($) {	1507	sub exists($) {
951	my ($login) = @_;	1508	my ($login) = @_;
952		1509
953	$cf::PLAYER{$login}	1510	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1511	or !aio_stat path $login
955	}	1512	}
956		1513
957	sub find($) {	1514	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1515	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1516	my $login = $_[0];
960		1517
961	my $guard = cf::lock_acquire "user_find:$login";	1518	my $guard = cf::lock_acquire "user_find:$login";
962		1519
963	$cf::PLAYER{$_[0]} || do {	1520	$cf::PLAYER{$_[0]} || do {
964	my $pl = load_pl path $login	1521	# rename old playerfiles to new ones
		1522	#TODO: remove when no longer required
		1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1526	aio_unlink +(playerdir $login) . "/$login.pl";
		1527
		1528	my $f = new_from_file cf::object::thawer path $login
965	or return;	1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
966	$cf::PLAYER{$login} = $pl	1536	$cf::PLAYER{$login} = $pl
967	}	1537	}
968	}	1538	}
969	}	1539	}
		1540
		1541	cf::player->attach (
		1542	on_load => sub {
		1543	my ($pl, $path) = @_;
		1544
		1545	# restore slots saved in save, below
		1546	my $slots = delete $pl->{_slots};
		1547
		1548	$pl->ob->current_weapon ($slots->[0]);
		1549	$pl->combat_ob ($slots->[1]);
		1550	$pl->ranged_ob ($slots->[2]);
		1551	},
		1552	);
970		1553
971	sub save($) {	1554	sub save($) {
972	my ($pl) = @_;	1555	my ($pl) = @_;
973		1556
974	return if $pl->{deny_save};	1557	return if $pl->{deny_save};
…		…
979	return if $pl->{deny_save};	1562	return if $pl->{deny_save};
980		1563
981	aio_mkdir playerdir $pl, 0770;	1564	aio_mkdir playerdir $pl, 0770;
982	$pl->{last_save} = $cf::RUNTIME;	1565	$pl->{last_save} = $cf::RUNTIME;
983		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
984	$pl->save_pl ($path);	1572	$pl->save_pl ($path);
985	Coro::cede;	1573	cf::cede_to_tick;
986	}	1574	}
987		1575
988	sub new($) {	1576	sub new($) {
989	my ($login) = @_;	1577	my ($login) = @_;
990		1578
…		…
996	$cf::PLAYER{$login} = $self;	1584	$cf::PLAYER{$login} = $self;
997		1585
998	$self	1586	$self
999	}	1587	}
1000		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
1001	=item $pl->quit_character	1599	=item $pl->quit_character
1002		1600
1003	Nukes the player without looking back. If logged in, the connection will	1601	Nukes the player without looking back. If logged in, the connection will
1004	be destroyed. May block for a long time.	1602	be destroyed. May block for a long time.
1005		1603
1006	=cut	1604	=cut
1007		1605
1008	sub quit_character {	1606	sub quit_character {
1009	my ($pl) = @_;	1607	my ($pl) = @_;
1010		1608
		1609	my $name = $pl->ob->name;
		1610
1011	$pl->{deny_save} = 1;	1611	$pl->{deny_save} = 1;
1012	$pl->password ("*"); # this should lock out the player until we nuked the dir	1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1013		1613
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1015	$pl->deactivate;	1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
1016	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1017	$pl->ns->destroy if $pl->ns;	1619	$pl->ns->destroy if $pl->ns;
1018		1620
1019	my $path = playerdir $pl;	1621	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1622	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1623	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1624	delete $cf::PLAYER{$pl->ob->name};
1023	$pl->destroy;	1625	$pl->destroy;
		1626
		1627	my $prefix = qr<^~\Q$name\E/>;
		1628
		1629	# nuke player maps
		1630	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1631
1024	IO::AIO::aio_rmtree $temp;	1632	IO::AIO::aio_rmtree $temp;
		1633	}
		1634
		1635	=item $pl->kick
		1636
		1637	Kicks a player out of the game. This destroys the connection.
		1638
		1639	=cut
		1640
		1641	sub kick {
		1642	my ($pl, $kicker) = @_;
		1643
		1644	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1645	$pl->killer ("kicked");
		1646	$pl->ns->destroy;
1025	}	1647	}
1026		1648
1027	=item cf::player::list_logins	1649	=item cf::player::list_logins
1028		1650
1029	Returns am arrayref of all valid playernames in the system, can take a	1651	Returns am arrayref of all valid playernames in the system, can take a
1030	while and may block, so not sync_job-capable, ever.	1652	while and may block, so not sync_job-capable, ever.
1031		1653
1032	=cut	1654	=cut
1033		1655
1034	sub list_logins {	1656	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1657	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1658	or return [];
1037		1659
1038	my @logins;	1660	my @logins;
1039		1661
1040	for my $login (@$dirs) {	1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
1041	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1042	aio_read $fh, 0, 512, my $buf, 0 or next;	1669	aio_read $fh, 0, 512, my $buf, 0 or next;
1043	$buf !~ /^password -------------$/m or next; # official not-valid tag	1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
1044		1672
1045	utf8::decode $login;	1673	utf8::decode $login;
1046	push @logins, $login;	1674	push @logins, $login;
1047	}	1675	}
1048		1676
…		…
1056		1684
1057	=cut	1685	=cut
1058		1686
1059	sub maps($) {	1687	sub maps($) {
1060	my ($pl) = @_;	1688	my ($pl) = @_;
		1689
		1690	$pl = ref $pl ? $pl->ob->name : $pl;
1061		1691
1062	my $files = aio_readdir playerdir $pl	1692	my $files = aio_readdir playerdir $pl
1063	or return;	1693	or return;
1064		1694
1065	my @paths;	1695	my @paths;
…		…
1067	for (@$files) {	1697	for (@$files) {
1068	utf8::decode $_;	1698	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1699	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1700	next unless /^$PATH_SEP/o;
1071		1701
1072	s/\.map$//;	1702	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1703	}
1075		1704
1076	\@paths	1705	\@paths
1077	}	1706	}
1078		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1712	=item $player->ext_reply ($msgid, @msg)
1080		1713
1081	Sends an ext reply to the player.	1714	Sends an ext reply to the player.
1082		1715
1083	=cut	1716	=cut
1084		1717
1085	sub ext_reply($$$%) {	1718	sub ext_reply($$@) {
1086	my ($self, $id, %msg) = @_;	1719	my ($self, $id, @msg) = @_;
1087		1720
1088	$msg{msgid} = $id;	1721	$self->ns->ext_reply ($id, @msg)
1089
1090	$self->send ("ext " . cf::to_json \%msg);
1091	}	1722	}
1092		1723
1093	package cf;	1724	=item $player->ext_msg ($type, @msg)
		1725
		1726	Sends an ext event to the client.
		1727
		1728	=cut
		1729
		1730	sub ext_msg($$@) {
		1731	my ($self, $type, @msg) = @_;
		1732
		1733	$self->ns->ext_msg ($type, @msg);
		1734	}
		1735
		1736	=head3 cf::region
		1737
		1738	=over 4
		1739
		1740	=cut
		1741
		1742	package cf::region;
		1743
		1744	=item cf::region::find_by_path $path
		1745
		1746	Tries to decuce the likely region for a map knowing only its path.
		1747
		1748	=cut
		1749
		1750	sub find_by_path($) {
		1751	my ($path) = @_;
		1752
		1753	my ($match, $specificity);
		1754
		1755	for my $region (list) {
		1756	if ($region->{match} && $path =~ $region->{match}) {
		1757	($match, $specificity) = ($region, $region->specificity)
		1758	if $region->specificity > $specificity;
		1759	}
		1760	}
		1761
		1762	$match
		1763	}
1094		1764
1095	=back	1765	=back
1096
1097		1766
1098	=head3 cf::map	1767	=head3 cf::map
1099		1768
1100	=over 4	1769	=over 4
1101		1770
…		…
1105		1774
1106	use Fcntl;	1775	use Fcntl;
1107	use Coro::AIO;	1776	use Coro::AIO;
1108		1777
1109	use overload	1778	use overload
1110	'""' => \&as_string;	1779	'""' => \&as_string,
		1780	fallback => 1;
1111		1781
1112	our $MAX_RESET = 3600;	1782	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1783	our $DEFAULT_RESET = 3000;
1114		1784
1115	sub generate_random_map {	1785	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1117		1789
1118	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1791	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1123	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1124	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1125	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1126	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1801	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1802	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1803	)
1132	}	1804	}
1133		1805
		1806	=item cf::map->register ($regex, $prio)
		1807
		1808	Register a handler for the map path matching the given regex at the
		1809	givne priority (higher is better, built-in handlers have priority 0, the
		1810	default).
		1811
		1812	=cut
		1813
1134	sub register {	1814	sub register {
1135	my (undef, $regex) = @_;	1815	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1816	my $pkg = caller;
1137		1817
1138	no strict;	1818	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1819	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1820
1141	$EXT_MAP{$pkg} = qr<$regex>;	1821	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1822	}
1143		1823
1144	# also paths starting with '/'	1824	# also paths starting with '/'
1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1825	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1826
		1827	sub thawer_merge {
		1828	my ($self, $merge) = @_;
		1829
		1830	# we have to keep some variables in memory intact
		1831	local $self->{path};
		1832	local $self->{load_path};
		1833
		1834	$self->SUPER::thawer_merge ($merge);
		1835	}
1146		1836
1147	sub normalise {	1837	sub normalise {
1148	my ($path, $base) = @_;	1838	my ($path, $base) = @_;
		1839
		1840	$path = "$path"; # make sure its a string
		1841
		1842	$path =~ s/\.map$//;
1149		1843
1150	# map plan:	1844	# map plan:
1151	#	1845	#
1152	# /! non-realised random map exit (special hack!)	1846	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1847	# {... are special paths that are not being touched
…		…
1181		1875
1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1876	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183		1877
1184	$path = normalise $path, $base;	1878	$path = normalise $path, $base;
1185		1879
1186	for my $pkg (keys %EXT_MAP) {	1880	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1881	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1882	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1883	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1884	$self->init; # pass $1 etc.
1191	return $self;	1885	return $self;
1192	}	1886	}
1193	}	1887	}
1194		1888
1195	Carp::carp "unable to resolve path '$path'.";	1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
1196	()	1890	()
1197	}	1891	}
1198		1892
1199	sub init {	1893	sub init {
1200	my ($self) = @_;	1894	my ($self) = @_;
…		…
1215		1909
1216	# the original (read-only) location	1910	# the original (read-only) location
1217	sub load_path {	1911	sub load_path {
1218	my ($self) = @_;	1912	my ($self) = @_;
1219		1913
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1914	"$MAPDIR/$self->{path}.map"
1221	}	1915	}
1222		1916
1223	# the temporary/swap location	1917	# the temporary/swap location
1224	sub save_path {	1918	sub save_path {
1225	my ($self) = @_;	1919	my ($self) = @_;
1226		1920
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1922	"$TMPDIR/$path.map"
1229	}	1923	}
1230		1924
1231	# the unique path, undef == no special unique path	1925	# the unique path, undef == no special unique path
1232	sub uniq_path {	1926	sub uniq_path {
1233	my ($self) = @_;	1927	my ($self) = @_;
1234		1928
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1930	"$UNIQUEDIR/$path"
1237	}	1931	}
1238		1932
1239	# and all this just because we cannot iterate over	1933	sub decay_objects {
1240	# all maps in C++...
1241	sub change_all_map_light {
1242	my ($change) = @_;	1934	my ($self) = @_;
1243		1935
1244	$_->change_map_light ($change)	1936	return if $self->{deny_reset};
1245	for grep $_->outdoor, values %cf::MAP;	1937
		1938	$self->do_decay_objects;
1246	}	1939	}
1247		1940
1248	sub unlink_save {	1941	sub unlink_save {
1249	my ($self) = @_;	1942	my ($self) = @_;
1250		1943
1251	utf8::encode (my $save = $self->save_path);	1944	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1946	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1947	}
1255		1948
1256	sub load_header_from($) {	1949	sub load_header_from($) {
1257	my ($self, $path) = @_;	1950	my ($self, $path) = @_;
1258		1951
1259	utf8::encode $path;	1952	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1261	or return;	1954	or return;
1262		1955
1263	$self->_load_header ($path)	1956	$self->_load_header ($f)
1264	or return;	1957	or return;
1265		1958
		1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
		1961
1266	$self->{load_path} = $path;	1962	$self->{load_path} = $path;
1267		1963
1268	1	1964	1
1269	}	1965	}
1270		1966
1271	sub load_orig {	1967	sub load_header_orig {
1272	my ($self) = @_;	1968	my ($self) = @_;
1273		1969
1274	$self->load_header_from ($self->load_path)	1970	$self->load_header_from ($self->load_path)
1275	}	1971	}
1276		1972
1277	sub load_temp {	1973	sub load_header_temp {
1278	my ($self) = @_;	1974	my ($self) = @_;
1279		1975
1280	$self->load_header_from ($self->save_path)	1976	$self->load_header_from ($self->save_path)
		1977	}
		1978
		1979	sub prepare_temp {
		1980	my ($self) = @_;
		1981
		1982	$self->last_access ((delete $self->{last_access})
		1983	|| $cf::RUNTIME); #d#
		1984	# safety
		1985	$self->{instantiate_time} = $cf::RUNTIME
		1986	if $self->{instantiate_time} > $cf::RUNTIME;
		1987	}
		1988
		1989	sub prepare_orig {
		1990	my ($self) = @_;
		1991
		1992	$self->{load_original} = 1;
		1993	$self->{instantiate_time} = $cf::RUNTIME;
		1994	$self->last_access ($cf::RUNTIME);
		1995	$self->instantiate;
1281	}	1996	}
1282		1997
1283	sub load_header {	1998	sub load_header {
1284	my ($self) = @_;	1999	my ($self) = @_;
1285		2000
1286	if ($self->load_temp) {	2001	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	2002	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	2003	} else {
1293	$self->load_orig	2004	$self->load_header_orig
1294	or return;	2005	or return;
1295		2006	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	2007	}
		2008
		2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
		2011
		2012	$self->default_region (cf::region::find_by_path $self->{path})
		2013	unless $self->default_region;
1301		2014
1302	1	2015	1
1303	}	2016	}
1304		2017
1305	sub find;	2018	sub find;
1306	sub find {	2019	sub find {
1307	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1308		2021
1309	$path = normalise $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1310		2023
		2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1311	cf::lock_wait "map_find:$path";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1312		2026
1313	$cf::MAP{$path} || do {	2027	$cf::MAP{$path} || do {
1314	my $guard = cf::lock_acquire "map_find:$path";
1315	my $map = new_from_path cf::map $path	2028	my $map = new_from_path cf::map $path
1316	or return;	2029	or return;
1317		2030
1318	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1319		2032
1320	$map->load_header	2033	$map->load_header
1321	or return;	2034	or return;
1322		2035
1323	if ($map->should_reset) {	2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2037	# doing this can freeze the server in a sync job, obviously
		2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
1324	$map->reset;	2041	$map->reset;
1325	undef $guard;
1326	$map = find $path	2042	return find $path;
1327	or return;
1328	}	2043	}
1329		2044
1330	$cf::MAP{$path} = $map	2045	$cf::MAP{$path} = $map
1331	}	2046	}
1332	}	2047	}
		2048
		2049	sub pre_load { }
		2050	#sub post_load { } # XS
1333		2051
1334	sub load {	2052	sub load {
1335	my ($self) = @_;	2053	my ($self) = @_;
1336		2054
		2055	local $self->{deny_reset} = 1; # loading can take a long time
		2056
1337	my $path = $self->{path};	2057	my $path = $self->{path};
		2058
		2059	{
1338	my $guard = cf::lock_acquire "map_load:$path";	2060	my $guard = cf::lock_acquire "map_data:$path";
1339		2061
		2062	return unless $self->valid;
1340	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1341		2064
1342	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1343		2066
1344	$self->alloc;	2067	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)	2068
		2069	$self->pre_load;
		2070	cf::cede_to_tick;
		2071
		2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
		2074	$self->_load_objects ($f)
1346	or return;	2075	or return;
1347		2076
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1349	if delete $self->{load_original};	2078	if delete $self->{load_original};
1350		2079
1351	if (my $uniq = $self->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;	2081	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1354	$self->clear_unique_items;	2084	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1356	}	2088	}
1357	}	2089	}
1358		2090
1359	Coro::cede;	2091	$f->resolve_delayed_derefs;
1360		2092
		2093	cf::cede_to_tick;
1361	# now do the right thing for maps	2094	# now do the right thing for maps
1362	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;
1369	$self->set_darkness_map;
1370	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	2097	unless $self->difficulty;
1372	Coro::cede;	2098	cf::cede_to_tick;
		2099
		2100	unless ($self->{deny_activate}) {
		2101	$self->decay_objects;
		2102	$self->fix_auto_apply;
		2103	$self->update_buttons;
		2104	cf::cede_to_tick;
1373	$self->activate;	2105	$self->activate;
1374	}	2106	}
1375		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
1376	$self->in_memory (cf::MAP_IN_MEMORY);	2111	$self->in_memory (cf::MAP_ACTIVE);
1377	}	2112	}
1378		2113
		2114	$self->post_load;
		2115	}
		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
1379	sub customise_for {	2120	sub customise_for {
1380	my ($self, $ob) = @_;	2121	my ($self, $ob) = @_;
1381		2122
1382	return find "~" . $ob->name . "/" . $self->{path}	2123	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	2124	if $self->per_player;
1384		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
1385	$self	2129	$self
1386	}	2130	}
1387		2131
1388	# find and load all maps in the 3x3 area around a map	2132	# find and load all maps in the 3x3 area around a map
1389	sub load_diag {	2133	sub load_neighbours {
1390	my ($map) = @_;	2134	my ($map) = @_;
1391		2135
1392	my @diag; # diagonal neighbours	2136	my @neigh; # diagonal neighbours
1393		2137
1394	for (0 .. 3) {	2138	for (0 .. 3) {
1395	my $neigh = $map->tile_path ($_)	2139	my $neigh = $map->tile_path ($_)
1396	or next;	2140	or next;
1397	$neigh = find $neigh, $map	2141	$neigh = find $neigh, $map
1398	or next;	2142	or next;
1399	$neigh->load;	2143	$neigh->load;
1400		2144
		2145	push @neigh,
1401	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1402	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1403	}	2148	}
1404		2149
1405	for (@diag) {	2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
1406	my $neigh = find @$_	2152	my $neigh = find $path, $origin
1407	or next;	2153	or next;
1408	$neigh->load;	2154	$neigh->load;
1409	}	2155	}
1410	}	2156	}
1411		2157
…		…
1416	}	2162	}
1417		2163
1418	sub do_load_sync {	2164	sub do_load_sync {
1419	my ($map) = @_;	2165	my ($map) = @_;
1420		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
1421	cf::sync_job { $map->load };	2170	cf::sync_job { $map->load };
1422	}	2171	}
1423		2172
1424	our %MAP_PREFETCH;	2173	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	2174	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		2175
1438	sub find_async {	2176	sub find_async {
1439	my ($path, $origin) = @_;	2177	my ($path, $origin, $load) = @_;
1440		2178
1441	$path = normalise $path, $origin && $origin->{path};	2179	$path = normalise $path, $origin && $origin->{path};
1442		2180
1443	if (my $map = $cf::MAP{$path}) {	2181	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2183	}
		2184
		2185	$MAP_PREFETCH{$path} |= $load;
		2186
		2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
		2190	while (%MAP_PREFETCH) {
		2191	while (my ($k, $v) = each %MAP_PREFETCH) {
		2192	if (my $map = find $k) {
		2193	$map->load if $v;
		2194	}
		2195
		2196	delete $MAP_PREFETCH{$k};
		2197	}
		2198	}
		2199	undef $MAP_PREFETCHER;
1445	}	2200	};
1446
1447	$MAP_PREFETCH{$path} = 0;
1448	$MAP_PREFETCHER->ready;	2201	$MAP_PREFETCHER->prio (6);
1449		2202
1450	()	2203	()
1451	}	2204	}
1452		2205
1453	sub save {	2206	sub save {
1454	my ($self) = @_;	2207	my ($self) = @_;
1455		2208
1456	my $lock = cf::lock_acquire "map_data:" . $self->path;	2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
1457		2210
1458	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1459		2212
1460	return unless $self->dirty;	2213	return unless $self->dirty;
1461		2214
…		…
1467	return if $self->{deny_save};	2220	return if $self->{deny_save};
1468		2221
1469	local $self->{last_access} = $self->last_access;#d#	2222	local $self->{last_access} = $self->last_access;#d#
1470		2223
1471	cf::async {	2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
1472	$_->contr->save for $self->players;	2226	$_->contr->save for $self->players;
1473	};	2227	};
		2228
		2229	cf::get_slot 0.02;
1474		2230
1475	if ($uniq) {	2231	if ($uniq) {
1476	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1477	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1478	} else {	2234	} else {
…		…
1484	my ($self) = @_;	2240	my ($self) = @_;
1485		2241
1486	# save first because save cedes	2242	# save first because save cedes
1487	$self->save;	2243	$self->save;
1488		2244
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2246
1491	return if $self->players;	2247	return if $self->players;
1492	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1493	return if $self->{deny_save};	2249	return if $self->{deny_save};
1494		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1495	$self->clear;	2255	$self->clear;
1496	$self->in_memory (cf::MAP_SWAPPED);
1497	}	2256	}
1498		2257
1499	sub reset_at {	2258	sub reset_at {
1500	my ($self) = @_;	2259	my ($self) = @_;
1501		2260
1502	# TODO: safety, remove and allow resettable per-player maps	2261	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	2262	return 1e99 if $self->{deny_reset};
1505		2263
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		2266
…		…
1513	my ($self) = @_;	2271	my ($self) = @_;
1514		2272
1515	$self->reset_at <= $cf::RUNTIME	2273	$self->reset_at <= $cf::RUNTIME
1516	}	2274	}
1517		2275
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	2276	sub reset {
1533	my ($self) = @_;	2277	my ($self) = @_;
1534		2278
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		2280
1537	return if $self->players;	2281	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		2282
1540	warn "resetting map ", $self->path;#d#	2283	warn "resetting map ", $self->path, "\n";
		2284
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# need to save uniques path
		2288	unless ($self->{deny_save}) {
		2289	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2290
		2291	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2292	if $uniq;
		2293	}
1541		2294
1542	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1543		2296
1544	$self->in_memory (cf::MAP_SWAPPED);	2297	$self->deactivate;
		2298	$_->clear_links_to ($self) for values %cf::MAP;
1545	$self->clear;	2299	$self->clear;
1546
1547	$_->clear_links_to ($self) for values %cf::MAP;
1548		2300
1549	$self->unlink_save;	2301	$self->unlink_save;
1550	$self->destroy;	2302	$self->destroy;
1551	}	2303	}
1552		2304
1553	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1554		2306
1555	sub nuke {	2307	sub nuke {
1556	my ($self) = @_;	2308	my ($self) = @_;
1557		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
		2313	delete $cf::MAP{$self->path};
		2314
		2315	$self->unlink_save;
		2316
		2317	bless $self, "cf::map";
		2318	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2322
		2323	$cf::MAP{$self->path} = $self;
		2324	}
		2325
1561	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
		2327	}
		2328
		2329	=item $maps = cf::map::tmp_maps
		2330
		2331	Returns an arrayref with all map paths of currently instantiated and saved
		2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
		2337	[
		2338	map {
		2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item $maps = cf::map::random_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
		2351
		2352	=cut
		2353
		2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
1562	}	2363	}
1563		2364
1564	=item cf::map::unique_maps	2365	=item cf::map::unique_maps
1565		2366
1566	Returns an arrayref of paths of all shared maps that have	2367	Returns an arrayref of paths of all shared maps that have
1567	instantiated unique items. May block.	2368	instantiated unique items. May block.
1568		2369
1569	=cut	2370	=cut
1570		2371
1571	sub unique_maps() {	2372	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2373	[
1573	or return;	2374	map {
1574
1575	my @paths;
1576
1577	for (@$files) {
1578	utf8::decode $_;	2375	utf8::decode $_;
1579	next if /\.pst$/;	2376	s/\.map$//; # TODO future compatibility hack
1580	next unless /^$PATH_SEP/o;	2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2378	? ()
		2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
		2381	]
		2382	}
1581		2383
		2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
1582	s/\.map$//;	2405	s/\.map$// or next;
1583	push @paths, $_;	2406	utf8::decode $_;
1584	}	2407	push @maps, "$dir/$_";
		2408	}
1585		2409
1586	\@paths	2410	push @dirs, map "$dir/$_", @$dirs;
1587	}	2411	}
1588		2412
1589	package cf;	2413	\@maps
		2414	}
1590		2415
1591	=back	2416	=back
1592		2417
1593	=head3 cf::object	2418	=head3 cf::object
1594		2419
…		…
1598		2423
1599	=over 4	2424	=over 4
1600		2425
1601	=item $ob->inv_recursive	2426	=item $ob->inv_recursive
1602		2427
1603	Returns the inventory of the object _and_ their inventories, recursively.	2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
1604		2430
1605	=cut	2431	=cut
1606		2432
1607	sub inv_recursive_;	2433	sub inv_recursive_;
1608	sub inv_recursive_ {	2434	sub inv_recursive_ {
…		…
1611		2437
1612	sub inv_recursive {	2438	sub inv_recursive {
1613	inv_recursive_ inv $_[0]	2439	inv_recursive_ inv $_[0]
1614	}	2440	}
1615		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
		2468	}
		2469
1616	package cf;	2470	package cf;
1617		2471
1618	=back	2472	=back
1619		2473
1620	=head3 cf::object::player	2474	=head3 cf::object::player
…		…
1626	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1627	can be C<undef>. Does the right thing when the player is currently in a	2481	can be C<undef>. Does the right thing when the player is currently in a
1628	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1629		2483
1630	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
1631		2499
1632	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1633	# with dialog boxes.	2501	# with dialog boxes.
1634	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
1635	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1637		2505
1638	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1639		2507
1640	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1641	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1642	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
1643	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1644	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1645	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
1646	}	2533	}
1647		2534
1648	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1649		2536
1650	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1663		2550
1664	=item $player_object->enter_link	2551	=item $player_object->enter_link
1665		2552
1666	Freezes the player and moves him/her to a special map (C<{link}>).	2553	Freezes the player and moves him/her to a special map (C<{link}>).
1667		2554
1668	The player should be reasonably safe there for short amounts of time. You	2555	The player should be reasonably safe there for short amounts of time (e.g.
1669	I<MUST> call C<leave_link> as soon as possible, though.	2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
1670		2559
1671	Will never block.	2560	Will never block.
1672		2561
1673	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1674		2563
…		…
1682	=cut	2571	=cut
1683		2572
1684	sub link_map {	2573	sub link_map {
1685	unless ($LINK_MAP) {	2574	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	2575	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2576	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	2577	$LINK_MAP->load;
1689	}	2578	}
1690		2579
1691	$LINK_MAP	2580	$LINK_MAP
1692	}	2581	}
…		…
1697	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1698		2587
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		2589
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1703		2592
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	2594	}
1706		2595
1707	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1709		2600
1710	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1711		2602
1712	unless ($map) {	2603	unless ($map) {
1713	# restore original map position	2604	# restore original map position
…		…
1724	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1725	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1726		2617
1727	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1728	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1729	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1730		2621
1731	$map->load;	2622	$map->load;
1732	$map->load_diag;	2623	$map->load_neighbours;
1733		2624
1734	return unless $self->contr->active;	2625	return unless $self->contr->active;
		2626
		2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2628	$self->enter_map ($map, $x, $y);
		2629
		2630	# only activate afterwards, to support waiting in hooks
1735	$self->activate_recursive;	2631	$self->activate_recursive;
1736	$self->enter_map ($map, $x, $y);
1737	}	2632	}
1738		2633
1739	cf::player->attach (	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1740	on_logout => sub {
1741	my ($pl) = @_;
1742		2635
1743	# abort map switching before logout	2636	Moves the player to the given map-path and coordinates by first freezing
1744	if ($pl->ob->{_link_pos}) {	2637	her, loading and preparing them map, calling the provided $check callback
1745	cf::sync_job {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1746	$pl->ob->leave_link	2639	the new (success) or old (failed) map position. In either case, $done will
1747	};	2640	be called at the end of this process.
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752		2641
1753	# try to abort aborted map switching on player login :)	2642	Note that $check will be called with a potentially non-loaded map, so if
1754	# should happen only on crashes	2643	it needs a loaded map it has to call C<< ->load >>.
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770		2644
1771	=item $player_object->goto ($path, $x, $y)
1772
1773	=cut	2645	=cut
		2646
		2647	our $GOTOGEN;
1774		2648
1775	sub cf::object::player::goto {	2649	sub cf::object::player::goto {
1776	my ($self, $path, $x, $y) = @_;	2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1777		2654
1778	$self->enter_link;	2655	$self->enter_link;
1779		2656
1780	(async {	2657	(async {
1781	my $map = cf::map::find $path;	2658	$Coro::current->{desc} = "player::goto $path $x $y";
		2659
		2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
		2679	my $map = eval {
		2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
1783		2684	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	2685	} else {
1785	# if $map;
1786
1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
1788		2688
		2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
		2695	}
		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
1789	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1790	})->prio (1);	2703	})->prio (1);
1791	}	2704	}
1792		2705
1793	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
1794		2707
…		…
1796		2709
1797	sub parse_random_map_params {	2710	sub parse_random_map_params {
1798	my ($spec) = @_;	2711	my ($spec) = @_;
1799		2712
1800	my $rmp = { # defaults	2713	my $rmp = { # defaults
1801	xsize => 10,	2714	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2715	ysize => (cf::rndm 15, 40),
		2716	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2717	#layout => string,
1803	};	2718	};
1804		2719
1805	for (split /\n/, $spec) {	2720	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2721	my ($k, $v) = split /\s+/, $_, 2;
1807		2722
…		…
1819	# that depends on the exit object	2734	# that depends on the exit object
1820		2735
1821	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
1822		2737
1823	if ($exit->map) {	2738	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2739	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
1828	}	2745	}
1829		2746
1830	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
1831		2748
1832	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1833	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
		2751	my $meta = "$RANDOMDIR/$md5.meta";
1834		2752
1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836	aio_write $fh, 0, (length $data), $data, 0;	2754	aio_write $fh, 0, (length $data), $data, 0;
		2755	undef $fh;
		2756	aio_rename "$meta~", $meta;
1837		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
1838	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
1840	}	2764	}
1841	}	2765	}
1842		2766
1843	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
…		…
1846	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
1847		2771
1848	$self->enter_link;	2772	$self->enter_link;
1849		2773
1850	(async {	2774	(async {
1851	$self->deactivate_recursive; # just to be sure	2775	$Coro::current->{desc} = "enter_exit";
		2776
1852	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
1853	prepare_random_map $exit	2784	prepare_random_map $exit
1854	if $exit->slaying eq "/!";	2785	if $exit->slaying eq "/!";
		2786	}
1855		2787
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
1858		2791
		2792	$self->goto ($map, $x, $y);
		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
1859	1;	2798	1
1860	}) {	2799	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
1862	. "I'll try to bring you back to the map you were before. "	2801	. "I'll try to bring you back to the map you were before. "
1863	. "Please report this to the dungeon master!",	2802	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2804
1866	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2806	$self->leave_link;
1868	}	2807	}
1869	})->prio (1);	2808	})->prio (1);
…		…
1882		2821
1883	sub cf::client::send_drawinfo {	2822	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2823	my ($self, $text, $flags) = @_;
1885		2824
1886	utf8::encode $text;	2825	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2827	}
1889		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
		3016	=item $client->ext_msg ($type, @msg)
		3017
		3018	Sends an ext event to the client.
		3019
		3020	=cut
		3021
		3022	sub cf::client::ext_msg($$@) {
		3023	my ($self, $type, @msg) = @_;
		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
		3028	push @msg, msgtype => "event_$type";
		3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
		3049	}
1890		3050
1891	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
1892		3052
1893	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
1894	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3054	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1895	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1896		3056
1897	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
1898	reliable at some point in the future.	3058	become reliable at some point in the future.
1899		3059
1900	=cut	3060	=cut
1901		3061
1902	sub cf::client::query {	3062	sub cf::client::query {
1903	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
1911	utf8::encode $text;	3071	utf8::encode $text;
1912	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1913		3073
1914	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
1915	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
1916	}	3078	}
1917		3079
1918	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
1919	on_reply => sub {	3086	on_reply => sub {
1920	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
1921		3088
1922	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
1923	# get handled first	3090	# get handled first
1924	my $queue = delete $ns->{query_queue}	3091	my $queue = delete $ns->{query_queue}
1925	or return; # be conservative, not sure how that can happen, but we saw a crash here	3092	or return; # be conservative, not sure how that can happen, but we saw a crash here
1926		3093
1927	(shift @$queue)->[1]->($msg);	3094	(shift @$queue)->[1]->($msg);
		3095	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		3096
1929	push @{ $ns->{query_queue} }, @$queue;	3097	push @{ $ns->{query_queue} }, @$queue;
1930		3098
1931	if (@{ $ns->{query_queue} } == @$queue) {	3099	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	3100	if (@$queue) {
…		…
1934	} else {	3102	} else {
1935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1936	}	3104	}
1937	}	3105	}
1938	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
1939	);	3133	);
1940		3134
1941	=item $client->async (\&cb)	3135	=item $client->async (\&cb)
1942		3136
1943	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
…		…
1959		3153
1960	$coro	3154	$coro
1961	}	3155	}
1962		3156
1963	cf::client->attach (	3157	cf::client->attach (
1964	on_destroy => sub {	3158	on_client_destroy => sub {
1965	my ($ns) = @_;	3159	my ($ns) = @_;
1966		3160
1967	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1968	},	3162	},
1969	);	3163	);
…		…
1984	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
1985	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
1986		3180
1987	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
1988		3182
1989	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
1990		3188
1991	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
1992		3190
1993	=pod	3191	=pod
1994		3192
1995	The following fucntions and emthods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
1996		3194
1997	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
1998	cf::object::player player	3200	cf::object::player
1999	cf::player peaceful	3201	player
2000	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
2001		3208
2002	=cut	3209	=cut
2003		3210
2004	for (	3211	for (
2005	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
2006	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
2007	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
2008	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
2009	) {	3218	) {
2010	no strict 'refs';	3219	no strict 'refs';
2011	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
2012	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2030		3239
2031	my $qcode = $code;	3240	my $qcode = $code;
2032	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2033	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
2034		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
2035	local $_;	3247	local $_;
2036	local @safe::cf::_safe_eval_args = values %vars;
2037		3248
2038	my $eval =	3249	my $eval =
2039	"do {\n"	3250	"do {\n"
2040	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2041	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
2042	. $code	3253	. $code
2043	. "\n}"	3254	. "\n}"
2044	;	3255	;
2045		3256
		3257	if ($CFG{safe_eval}) {
2046	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
2047	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2048	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
2049		3266
2050	if ($@) {	3267	if ($@) {
2051	warn "$@";	3268	warn "$@";
2052	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
2053	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2072	=cut	3289	=cut
2073		3290
2074	sub register_script_function {	3291	sub register_script_function {
2075	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
2076		3293
2077	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
2078	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
2079	}	3296	}
2080		3297
2081	=back	3298	=back
2082		3299
2083	=cut	3300	=cut
2084		3301
2085	#############################################################################	3302	#############################################################################
		3303	# the server's init and main functions
2086		3304
2087	=head2 EXTENSION DATABASE SUPPORT	3305	sub load_facedata($) {
		3306	my ($path) = @_;
2088		3307
2089	Crossfire maintains a very simple database for extension use. It can	3308	# HACK to clear player env face cache, we need some signal framework
2090	currently store anything that can be serialised using Storable, which	3309	# for this (global event?)
2091	excludes objects.	3310	%ext::player_env::MUSIC_FACE_CACHE = ();
2092		3311
2093	The parameter C<$family> should best start with the name of the extension	3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2094	using it, it should be unique.
2095		3313
2096	=over 4	3314	warn "loading facedata from $path\n";
2097		3315
2098	=item $hashref = cf::db_get $family	3316	my $facedata;
		3317	0 < aio_load $path, $facedata
		3318	or die "$path: $!";
2099		3319
2100	Return a hashref for use by the extension C<$family>, which can be	3320	$facedata = Coro::Storable::thaw $facedata;
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103		3321
2104	=item $value = cf::db_get $family => $key	3322	$facedata->{version} == 2
		3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
2105		3324
2106	Returns a single value from the database	3325	# patch in the exptable
2107		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2108	=item cf::db_put $family => $hashref	3327	$facedata->{resource}{"res/exp_table"} = {
2109		3328	type => FT_RSRC,
2110	Stores the given family hashref into the database. Updates are delayed, if	3329	data => $exp_table,
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3330	hash => (Digest::MD5::md5 $exp_table),
2112
2113	=item cf::db_put $family => $key => $value
2114
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125
2126	=cut
2127
2128	our $DB;
2129
2130	{
2131	my $path = cf::localdir . "/database.pst";
2132
2133	sub db_load() {
2134	$DB = stat $path ? Storable::retrieve $path : { };
2135	}
2136
2137	my $pid;
2138
2139	sub db_save() {
2140	waitpid $pid, 0 if $pid;
2141	if (0 == ($pid = fork)) {
2142	$DB->{_meta}{version} = 1;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});	3331	};
		3332	cf::cede_to_tick;
2159		3333
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}	3334	{
		3335	my $faces = $facedata->{faceinfo};
2164		3336
2165	sub db_get($;$) {	3337	while (my ($face, $info) = each %$faces) {
2166	@_ >= 2	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170		3339
2171	sub db_put($$;$) {	3340	cf::face::set_visibility $idx, $info->{visibility};
2172	if (@_ >= 3) {	3341	cf::face::set_magicmap $idx, $info->{magicmap};
2173	$DB->{$_[0]}{$_[1]} = $_[2];	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2174	} else {	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179		3344
2180	cf::global->attach (	3345	cf::cede_to_tick;
2181	prio => 10000,
2182	on_cleanup => sub {
2183	db_sync;
2184	},	3346	}
2185	);
2186	}
2187		3347
2188	#############################################################################	3348	while (my ($face, $info) = each %$faces) {
2189	# the server's main()	3349	next unless $info->{smooth};
2190		3350
2191	sub cfg_load {	3351	my $idx = cf::face::find $face
		3352	or next;
		3353
		3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
		3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3357	} else {
		3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3359	}
		3360
		3361	cf::cede_to_tick;
		3362	}
		3363	}
		3364
		3365	{
		3366	my $anims = $facedata->{animinfo};
		3367
		3368	while (my ($anim, $info) = each %$anims) {
		3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3370	cf::cede_to_tick;
		3371	}
		3372
		3373	cf::anim::invalidate_all; # d'oh
		3374	}
		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
		3395	1
		3396	}
		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
		3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
		3441	load_resource_file "$MAPDIR/regions"
		3442	or die "unable to load regions file\n";
		3443
		3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
		3448	}
		3449
		3450	sub reload_facedata {
		3451	load_facedata "$DATADIR/facedata"
		3452	or die "unable to load facedata\n";
		3453	}
		3454
		3455	sub reload_archetypes {
		3456	load_resource_file "$DATADIR/archetypes"
		3457	or die "unable to load archetypes\n";
		3458	}
		3459
		3460	sub reload_treasures {
		3461	load_resource_file "$DATADIR/treasures"
		3462	or die "unable to load treasurelists\n";
		3463	}
		3464
		3465	sub reload_resources {
		3466	warn "reloading resource files...\n";
		3467
		3468	reload_facedata;
		3469	reload_archetypes;
		3470	reload_regions;
		3471	reload_treasures;
		3472
		3473	warn "finished reloading resource files\n";
		3474	}
		3475
		3476	sub reload_config {
		3477	warn "reloading config file...\n";
		3478
2192	open my $fh, "<:utf8", cf::confdir . "/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	3480	or return;
2194		3481
2195	local $/;	3482	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
2197		3484
2198	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2199		3486
2200	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2201	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2205	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2206	and die "WARNING: m(un)lockall failed: $!\n";	3493	and die "WARNING: m(un)lockall failed: $!\n";
2207	};	3494	};
2208	warn $@ if $@;	3495	warn $@ if $@;
2209	}	3496	}
		3497
		3498	warn "finished reloading resource files\n";
		3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
2210	}	3527	}
2211		3528
2212	sub main {	3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
2213	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2216	async { Event::one_event };	3547	(async {
		3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3549	EV::loop EV::LOOP_ONESHOT;
		3550	})->prio (Coro::PRIO_MAX);
2217	};	3551	};
2218		3552
2219	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
2220	db_load;	3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
		3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
2221	load_extensions;	3571	load_extensions;
2222	Event::loop;	3572
		3573	utime time, time, $RUNTIMEFILE;
		3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
2223	}	3583	}
2224		3584
2225	#############################################################################	3585	#############################################################################
2226	# initialisation and cleanup	3586	# initialisation and cleanup
2227		3587
2228	# install some emergency cleanup handlers	3588	# install some emergency cleanup handlers
2229	BEGIN {	3589	BEGIN {
		3590	our %SIGWATCHER = ();
2230	for my $signal (qw(INT HUP TERM)) {	3591	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2232	data => WF_AUTOCANCEL,
2233	signal => $signal,
2234	cb => sub {
2235	cf::cleanup "SIG$signal";	3593	cf::cleanup "SIG$signal";
2236	},
2237	);	3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3609	or return;
		3610
		3611	my $value = $cf::RUNTIME + 90 + 10;
		3612	# 10 is the runtime save interval, for a monotonic clock
		3613	# 60 allows for the watchdog to kill the server.
		3614
		3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3616	and return;
		3617
		3618	# always fsync - this file is important
		3619	aio_fsync $fh
		3620	and return;
		3621
		3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
2238	}	3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
2239	}	3684	}
2240		3685
2241	sub emergency_save() {	3686	sub emergency_save() {
2242	my $freeze_guard = cf::freeze_mainloop;	3687	my $freeze_guard = cf::freeze_mainloop;
2243		3688
2244	warn "enter emergency perl save\n";	3689	warn "emergency_perl_save: enter\n";
2245		3690
2246	cf::sync_job {	3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
2247	# use a peculiar iteration method to avoid tripping on perl	3697	# use a peculiar iteration method to avoid tripping on perl
2248	# refcount bugs in for. also avoids problems with players	3698	# refcount bugs in for. also avoids problems with players
2249	# and maps saved/destroyed asynchronously.	3699	# and maps saved/destroyed asynchronously.
2250	warn "begin emergency player save\n";	3700	warn "emergency_perl_save: begin player save\n";
2251	for my $login (keys %cf::PLAYER) {	3701	for my $login (keys %cf::PLAYER) {
2252	my $pl = $cf::PLAYER{$login} or next;	3702	my $pl = $cf::PLAYER{$login} or next;
2253	$pl->valid or next;	3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2254	$pl->save;	3705	$pl->save;
2255	}	3706	}
2256	warn "end emergency player save\n";	3707	warn "emergency_perl_save: end player save\n";
2257		3708
2258	warn "begin emergency map save\n";	3709	warn "emergency_perl_save: begin map save\n";
2259	for my $path (keys %cf::MAP) {	3710	for my $path (keys %cf::MAP) {
2260	my $map = $cf::MAP{$path} or next;	3711	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	3712	$map->valid or next;
2262	$map->save;	3713	$map->save;
2263	}	3714	}
2264	warn "end emergency map save\n";	3715	warn "emergency_perl_save: end map save\n";
		3716
		3717	warn "emergency_perl_save: begin database checkpoint\n";
		3718	BDB::db_env_txn_checkpoint $DB_ENV;
		3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
2265	};	3724	};
2266		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
2267	warn "leave emergency perl save\n";	3731	warn "emergency_perl_save: leave\n";
2268	}	3732	}
2269		3733
		3734	sub post_cleanup {
		3735	my ($make_core) = @_;
		3736
		3737	warn Carp::longmess "post_cleanup backtrace"
		3738	if $make_core;
		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
		3768	}
		3769
2270	sub reload() {	3770	sub do_reload_perl() {
2271	# can/must only be called in main	3771	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	3773	warn "can only reload from main coroutine";
2274	return;	3774	return;
2275	}	3775	}
2276		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2277	warn "reloading...";	3782	warn "reloading...";
2278		3783
2279	warn "freezing server";	3784	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	3785
		3786	cf::sync_job {
		3787	cf::write_runtime_sync; # external watchdog should not bark
2281	cf::emergency_save;	3788	cf::emergency_save;
		3789	cf::write_runtime_sync; # external watchdog should not bark
2282		3790
2283	warn "sync database to disk";	3791	warn "syncing database to disk";
2284	cf::db_sync;	3792	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		3793
2287	eval {
2288	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
2289		3795
2290	warn "cancel all watchers";	3796	warn "flushing outstanding aio requests";
2291	for (Event::all_watchers) {	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2293	}
2294
2295	warn "cancel all extension coros";
2296	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();
2298
2299	warn "remove commands";
2300	%COMMAND = ();
2301
2302	warn "remove ext commands";
2303	%EXTCMD = ();
2304
2305	warn "unload/nuke all extensions";
2306	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";
2308
2309	if (my $cb = $pkg->can ("unload")) {
2310	eval {
2311	$cb->($pkg);
2312	1
2313	} or warn "$pkg unloaded, but with errors: $@";
2314	}	3799	}
2315		3800
		3801	warn "cancelling all extension coros";
		3802	$_->cancel for values %EXT_CORO;
		3803	%EXT_CORO = ();
		3804
		3805	warn "removing commands";
		3806	%COMMAND = ();
		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
2316	warn "... nuking $pkg";	3814	warn "... unloading $pkg";
2317	Symbol::delete_package $pkg;
2318	}
2319		3815
2320	warn "unload all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323
2324	warn "removing <$k>";
2325	delete $INC{$k};
2326
2327	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;
2329
2330	if (my $cb = $k->can ("unload_module")) {	3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
2331	$cb->();	3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
2332	}	3825	}
2333		3826
2334	Symbol::delete_package $k;	3827	warn "unloading all perl modules loaded from $LIBDIR";
		3828	while (my ($k, $v) = each %INC) {
		3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
2335	}	3842	}
2336		3843
2337	warn "get rid of safe::, as good as possible";	3844	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2340		3847
2341	warn "unload cf.pm \"a bit\"";	3848	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
		3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2343		3851
2344	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2345	# and global variables created in xs	3853	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2347		3855
		3856	warn "unload completed, starting to reload now";
		3857
2348	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2349	require cf;	3859	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2351		3861
2352	warn "load config and database again";	3862	warn "loading config and database again";
2353	cf::cfg_load;	3863	cf::reload_config;
2354	cf::db_load;
2355		3864
2356	warn "load extensions";	3865	warn "loading extensions";
2357	cf::load_extensions;	3866	cf::load_extensions;
2358		3867
		3868	if ($REATTACH_ON_RELOAD) {
2359	warn "reattach attachments to objects/players";	3869	warn "reattaching attachments to objects/players";
2360	_global_reattach;	3870	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	3871	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	3872	reattach $_ for values %MAP;
		3873	warn "reattaching attachments to players";
		3874	reattach $_ for values %PLAYER;
		3875	}
		3876
		3877	warn "running post_init jobs";
		3878	(pop @POST_INIT)->(1) while @POST_INIT;
		3879
		3880	warn "leaving sync_job";
		3881
		3882	1
		3883	} or do {
		3884	warn $@;
		3885	cf::cleanup "error while reloading, exiting.";
		3886	};
		3887
		3888	warn "reloaded";
		3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
		3894	};
		3895
		3896	our $RELOAD_WATCHER; # used only during reload
		3897
		3898	sub reload_perl() {
		3899	# doing reload synchronously and two reloads happen back-to-back,
		3900	# coro crashes during coro_state_free->destroy here.
		3901
		3902	$RELOAD_WATCHER ||= cf::async {
		3903	Coro::AIO::aio_wait cache_extensions;
		3904
		3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3906	do_reload_perl;
		3907	undef $RELOAD_WATCHER;
		3908	};
2363	};	3909	};
2364		3910	}
2365	if ($@) {
2366	warn $@;
2367	warn "error while reloading, exiting.";
2368	exit 1;
2369	}
2370
2371	warn "reloaded";
2372	};
2373		3911
2374	register_command "reload" => sub {	3912	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2376		3914
2377	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
		3919	reload_perl;
		3920	};
2381	}	3921	}
2382	};	3922	};
2383		3923
2384	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2385		3925
2386	$TICK_WATCHER = Event->timer (	3926	my $bug_warning = 0;
2387	reentrant => 0,
2388	prio => 0,
2389	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,
2391	cb => sub {
2392	$NOW = Event::time;
2393		3927
		3928	our @WAIT_FOR_TICK;
		3929	our @WAIT_FOR_TICK_BEGIN;
		3930
		3931	sub wait_for_tick {
		3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3933
		3934	my $signal = new Coro::Signal;
		3935	push @WAIT_FOR_TICK, $signal;
		3936	$signal->wait;
		3937	}
		3938
		3939	sub wait_for_tick_begin {
		3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3941
		3942	my $signal = new Coro::Signal;
		3943	push @WAIT_FOR_TICK_BEGIN, $signal;
		3944	$signal->wait;
		3945	}
		3946
		3947	sub tick {
		3948	if ($Coro::current != $Coro::main) {
		3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3950	unless ++$bug_warning > 10;
		3951	return;
		3952	}
		3953
2394	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2395	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;
2397		3955
2398	$WAIT_FOR_TICK->broadcast;	3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2400		3957
2401	# if we are delayed by four ticks or more, skip them all	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2403		3960	Coro::async_pool {
2404	$TICK_WATCHER->at ($NEXT_TICK);	3961	$Coro::current->{desc} = "runtime saver";
2405	$TICK_WATCHER->start;
2406	},
2407	);
2408
2409	IO::AIO::max_poll_time $TICK * 0.2;
2410
2411	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,
2421	after => 0,
2422	interval => 10,
2423	cb => sub {
2424	(Coro::unblock_sub {
2425	write_runtime	3962	write_runtime_sync
2426	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2427	})->();	3964	};
2428	},	3965	}
2429	);	3966
		3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3968	$sig->send;
		3969	}
		3970	while (my $sig = shift @WAIT_FOR_TICK) {
		3971	$sig->send;
		3972	}
		3973
		3974	$LOAD = ($NOW - $TICK_START) / $TICK;
		3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3976
		3977	if (0) {
		3978	if ($NEXT_TICK) {
		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
		3983	}
		3984	}
		3985
		3986	{
		3987	# configure BDB
		3988
		3989	BDB::min_parallel 16;
		3990	BDB::max_poll_reqs $TICK * 0.1;
		3991	$AnyEvent::BDB::WATCHER->priority (1);
		3992
		3993	unless ($DB_ENV) {
		3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4000
		4001	cf::sync_job {
		4002	eval {
		4003	BDB::db_env_open
		4004	$DB_ENV,
		4005	$BDBDIR,
		4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4008	0666;
		4009
		4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4011	};
		4012
		4013	cf::cleanup "db_env_open(db): $@" if $@;
		4014	};
		4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
		4026	}
		4027
		4028	{
		4029	# configure IO::AIO
		4030
		4031	IO::AIO::min_parallel 8;
		4032	IO::AIO::max_poll_time $TICK * 0.1;
		4033	undef $AnyEvent::AIO::WATCHER;
		4034	}
		4035
		4036	my $_log_backtrace;
		4037
		4038	sub _log_backtrace {
		4039	my ($msg, @addr) = @_;
		4040
		4041	$msg =~ s/\n//;
		4042
		4043	# limit the # of concurrent backtraces
		4044	if ($_log_backtrace < 2) {
		4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
		4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
		4050	my @bt = fork_call {
		4051	@addr = map { sprintf "%x", $_ } @addr;
		4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4054	or die "addr2line: $!";
		4055
		4056	my @funcs;
		4057	my @res = <$fh>;
		4058	chomp for @res;
		4059	while (@res) {
		4060	my ($func, $line) = splice @res, 0, 2, ();
		4061	push @funcs, "[$func] $line";
		4062	}
		4063
		4064	@funcs
		4065	};
		4066
		4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4069	LOG llevInfo, "[ABT] $_\n" for @bt;
		4070	--$_log_backtrace;
		4071	};
		4072	} else {
		4073	LOG llevInfo, "[ABT] $msg\n";
		4074	LOG llevInfo, "[ABT] [suppressed]\n";
		4075	}
		4076	}
		4077
		4078	# load additional modules
		4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
2430		4081
2431	END { cf::emergency_save }	4082	END { cf::emergency_save }
2432		4083
2433	1	4084	1
2434		4085

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