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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.516 by root, Thu Apr 15 06:05:52 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $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
49	our $NEXT_TICK;	118	our $NEXT_TICK;
50	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);
51		127
52	our %CFG;	128	our %CFG;
53		129
54	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
56		133
57	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		137
65	# 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 ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		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 $REALLY_UNLOOP; # never set to true, please :)
		150
68	binmode STDOUT;	151	binmode STDOUT;
69	binmode STDERR;	152	binmode STDERR;
70		153
71	# read virtual server time, if available	154	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
76	}	159	}
77		160
78	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	162
80	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		165
84	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::"} };
85		180
86	#############################################################################	181	#############################################################################
87		182
88	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
89		184
…		…
96	=item $cf::RUNTIME	191	=item $cf::RUNTIME
97		192
98	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
99	every server tick.	194	every server tick.
100		195
101	=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
102		199
103	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		204
106	=item $cf::NOW	205	=item $cf::NOW
107		206
108	The time of the last (current) server tick.	207	The time of the last (current) server tick.
109		208
110	=item $cf::TICK	209	=item $cf::TICK
111		210
112	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
113		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
114	=item %cf::CFG	223	=item %cf::CFG
115		224
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	226	from wherever your confdir points to.
118		227
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		229
121	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
122	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
123	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.
124	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.
125		245
126	=back	246	=back
127		247
128	=cut	248	=cut
129		249
130	BEGIN {	250	$Coro::State::WARNHOOK = sub {
131	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	251	my $msg = join "", @_;
133	utf8::encode $msg;
134		252
135	$msg .= "\n"	253	$msg .= "\n"
136	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
137		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
138	LOG llevError, $msg;	258	LOG llevError, $msg;
139	};	259	};
140	}	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	};
141		274
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@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';
147	@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)
148		282
149	# 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
150	# within the Safe compartment.	284	# within the Safe compartment.
151	for my $pkg (qw(	285	for my $pkg (qw(
152	cf::global cf::attachable	286	cf::global cf::attachable
153	cf::object cf::object::player	287	cf::object cf::object::player
154	cf::client cf::player	288	cf::client cf::player
155	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
156	cf::map cf::party cf::region	291	cf::party cf::region
157	)) {	292	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	294	}
161		295
162	$Event::DIED = sub {	296	$EV::DIED = sub {
163	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
164	};	298	};
		299
		300	#############################################################################
165		301
166	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
167		303
168	=over 4	304	=over 4
169		305
…		…
188	$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;
189	$d	325	$d
190	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
191	}	327	}
192		328
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
196		330
197	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
198		332
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
207		334
208	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
209		336
210	=cut	337	=cut
211		338
212	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
214	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;
215	}	356	}
216		357
217	=item cf::lock_wait $string	358	=item cf::lock_wait $string
218		359
219	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
220		361
221	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
222		363
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
226	returned.	367	returned.
227		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
228	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
229	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
230		374
231	=cut	375	=item $locked = cf::lock_active $string
232		376
233	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
234		382
235	sub lock_wait($) {	383	sub lock_wait($) {
236	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	385	}
244		386
245	sub lock_acquire($) {	387	sub lock_acquire($) {
246	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
247		390
248	# wait, to be sure we are not locked	391	sub lock_active($) {
249	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	393	}
258		394
259	sub freeze_mainloop {	395	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
261		397
262	my $guard = Coro::guard { $TICK_WATCHER->start };	398	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	399	}
264	$guard	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 time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
		465	}
		466	};
		467
		468	sub get_slot($;$$) {
		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	$sig->wait;
265	}	481	}
266		482
267	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
268		484
269	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		490
275	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
276		492
277	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
278		494
279	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
282		499
283	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
286	fast or be very important.	503	fast or be very important.
…		…
289		506
290	sub sync_job(&) {	507	sub sync_job(&) {
291	my ($job) = @_;	508	my ($job) = @_;
292		509
293	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
294	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
296		515
297	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	517
299	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
300		519
301	my $busy = 1;	520	my $busy = 1;
302	my @res;	521	my @res;
303		522
304	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	525	@res = eval { $job->() };
306	warn $@ if $@;	526	warn $@ if $@;
307	undef $busy;	527	undef $busy;
308	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
309		529
310	while ($busy) {	530	while ($busy) {
311	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
312	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
313		541
314	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
315	} else {	543	} else {
316	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
317		545
…		…
337	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
338		566
339	$coro	567	$coro
340	}	568	}
341		569
342	sub write_runtime {	570	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		571
345	my $runtime = cf::localdir . "/runtime";	572	Executes the given code block with the given arguments in a seperate
		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.
346		576
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
348	or return;
349		578
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	579	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	580	my ($cb, @args) = @_;
352	and return;
353		581
354	aio_fsync $fh	582	# we seemingly have to make a local copy of the whole thing,
355	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
356		585
357	close $fh	586	my @res = Coro::Util::fork_eval {
358	or return;	587	reset_signals;
		588	&$cb
		589	}, @args;
359		590
360	aio_rename "$runtime~", $runtime	591	wantarray ? @res : $res[-1]
361	and return;	592	}
362		593
		594	sub objinfo {
363	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	768	}
365		769
366	=back	770	=back
367		771
368	=cut	772	=cut
369		773
370	#############################################################################	774	#############################################################################
371		775
372	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
373		777
374	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
377		781
378	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	784	Deliantra).
381		785
382	=over 4	786	=over 4
383		787
384	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
385		789
…		…
429	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
430		834
431	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
433		837
434	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
436		840
437	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
438		842
439	=over 4	843	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	903	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	904	our @CB_MAP = ();
501		905
502	my %attachment;	906	my %attachment;
503		907
		908	sub cf::attachable::thawer_merge {
		909	# simply override everything except _meta
		910	local $_[0]{_meta};
		911	%{$_[0]} = %{$_[1]};
		912	}
		913
504	sub _attach_cb($$$$) {	914	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	915	my ($registry, $event, $prio, $cb) = @_;
506		916
507	use sort 'stable';	917	use sort 'stable';
508		918
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
543		953
544	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		958
549	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	960	my $pkg = shift @arg;
551		961
552	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
582	}	992	}
583		993
584	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
585	} else {	995	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	997	}
588		998
589	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
590	}	1000	}
591		1001
…		…
593	if (ref $_[0]) {	1003	if (ref $_[0]) {
594	_object_attach @_;	1004	_object_attach @_;
595	} else {	1005	} else {
596	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
597	}	1007	}
		1008	_recalc_want;
598	};	1009	};
599		1010
600	# all those should be optimised	1011	# all those should be optimised
601	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
606	reattach ($obj);	1017	reattach ($obj);
607	} else {	1018	} else {
608	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
609	}	1020	}
		1021	_recalc_want;
610	};	1022	};
611		1023
612	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
614		1026
…		…
629	";	1041	";
630	die if $@;	1042	die if $@;
631	}	1043	}
632		1044
633	our $override;	1045	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1047
636	sub override {	1048	sub override {
637	$override = 1;	1049	$override = 1;
638	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
639	}	1051	}
640		1052
641	sub do_invoke {	1053	sub do_invoke {
642	my $event = shift;	1054	my $event = shift;
643	my $callbacks = shift;	1055	my $callbacks = shift;
644		1056
645	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
646		1058
647	local $override;	1059	local $override;
648		1060
649	for (@$callbacks) {	1061	for (@$callbacks) {
650	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
659	}	1071	}
660		1072
661	0	1073	0
662	}	1074	}
663		1075
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1077
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1079
668	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
669		1081
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1085
674	=back	1086	=back
675		1087
676	=cut	1088	=cut
677		1089
678	#############################################################################	1090	#############################################################################
679	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
680		1134
681	sub reattach {	1135	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1137	my ($obj) = @_;
		1138
		1139	# no longer needed after getting rid of delete_package?
		1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1141
685	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
686		1143
687	@$registry = ();	1144	@$registry = ();
688		1145
…		…
703	cf::attachable->attach (	1160	cf::attachable->attach (
704	prio => -1000000,	1161	prio => -1000000,
705	on_instantiate => sub {	1162	on_instantiate => sub {
706	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
707		1164
708	$data = from_json $data;	1165	$data = decode_json $data;
709		1166
710	for (@$data) {	1167	for (@$data) {
711	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
712		1169
713	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1186	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
731		1188
732	sync_job {	1189	sync_job {
733	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
736		1194
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 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;
740	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
741	close $fh;	1202	aio_close $fh;
742		1203
743	if (@$objs) {	1204	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
		1209	if ($cf::USE_FSYNC) {
		1210	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
748	aio_fsync $fh;	1211	aio_fsync $fh;
		1212	}
749	close $fh;	1213	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
751	}	1215	}
752	} else {	1216	} else {
753	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
754	}	1218	}
755		1219
756	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1224	} else {
758	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
759	}	1226	}
760	} else {	1227	} else {
761	aio_unlink $filename;	1228	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
763	}	1230	}
764	}	1231	};
765	}	1232	}
766		1233
767	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
769		1236
…		…
781	or return;	1248	or return;
782		1249
783	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
785	or return;	1252	or return;
		1253
786	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
787	}	1256	}
788		1257
		1258	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
791	return ($data, $av);	1262	($data, $av)
792	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
793		1270
794	#############################################################################	1271	#############################################################################
795	# command handling &c	1272	# command handling &c
796		1273
797	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1288	}
812		1289
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1291
815	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
816		1297
817	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
818	called.	1299	called.
819		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
820	=cut	1312	=cut
821		1313
822	sub register_extcmd {	1314	sub register_extcmd {
823	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
824		1316
825	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
826	}	1318	}
827		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
828	cf::player->attach (	1328	cf::player->attach (
829	on_command => sub {	1329	on_unknown_command => sub {
830	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
831		1331
832	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
833	or return;	1333	or return;
834		1334
…		…
839	cf::override;	1339	cf::override;
840	},	1340	},
841	on_extcmd => sub {	1341	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
843		1343
844	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1345
846	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
852	} else {	1361	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1363	}
855		1364
856	cf::override;	1365	cf::override;
857	},	1366	},
858	);	1367	);
859		1368
		1369	# "readahead" all extensions
860	sub load_extension {	1370	sub cache_extensions {
861	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
862		1372
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1376	}
888	die $@;
889	}	1377	};
890		1378
891	push @EXTS, $pkg;	1379	$grp
892	}	1380	}
893		1381
894	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
895	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1387	next unless -r $path;
897	eval {	1388
898	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
899	1	1449	}
900	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
901	}	1460	};
902	}	1461	}
903		1462
904	#############################################################################	1463	#############################################################################
905		1464
		1465	=back
		1466
906	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
907		1468
908	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
909		1470
910	=cut	1471	=cut
911		1472
912	package cf::player;	1473	package cf::player;
913		1474
…		…
915		1476
916	=head3 cf::player	1477	=head3 cf::player
917		1478
918	=over 4	1479	=over 4
919		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
920	=item cf::player::find $login	1495	=item cf::player::find $login
921		1496
922	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
923		1498
924	=cut	1499	=cut
925		1500
926	sub playerdir($) {	1501	sub playerdir($) {
927	cf::localdir	1502	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1504	}
933		1505
934	sub path($) {	1506	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1508
937	(playerdir $login) . "/$login.pl"	1509	(playerdir $login) . "/playerdata"
938	}	1510	}
939		1511
940	sub find_active($) {	1512	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1513	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1514	and $cf::PLAYER{$_[0]}->active
…		…
945		1517
946	sub exists($) {	1518	sub exists($) {
947	my ($login) = @_;	1519	my ($login) = @_;
948		1520
949	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1522	or !aio_stat path $login
951	}	1523	}
952		1524
953	sub find($) {	1525	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1527	my $login = $_[0];
956		1528
957	my $guard = cf::lock_acquire "user_find:$login";	1529	my $guard = cf::lock_acquire "user_find:$login";
958		1530
959	$cf::PLAYER{$_[0]} || do {	1531	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
961	or return;	1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
963	}	1548	}
964	}	1549	}
965	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($pl, $path) = @_;
		1555
		1556	# restore slots saved in save, below
		1557	my $slots = delete $pl->{_slots};
		1558
		1559	$pl->ob->current_weapon ($slots->[0]);
		1560	$pl->combat_ob ($slots->[1]);
		1561	$pl->ranged_ob ($slots->[2]);
		1562	},
		1563	);
966		1564
967	sub save($) {	1565	sub save($) {
968	my ($pl) = @_;	1566	my ($pl) = @_;
969		1567
970	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
975	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
976		1574
977	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
979		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
980	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
981	Coro::cede;	1584	cf::cede_to_tick;
982	}	1585	}
983		1586
984	sub new($) {	1587	sub new($) {
985	my ($login) = @_;	1588	my ($login) = @_;
986		1589
…		…
992	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
993		1596
994	$self	1597	$self
995	}	1598	}
996		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
997	=item $pl->quit_character	1610	=item $pl->quit_character
998		1611
999	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1001		1614
1002	=cut	1615	=cut
1003		1616
1004	sub quit_character {	1617	sub quit_character {
1005	my ($pl) = @_;	1618	my ($pl) = @_;
1006		1619
		1620	my $name = $pl->ob->name;
		1621
1007	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1624
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1014		1631
1015	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1634	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1635	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1636	$pl->destroy;
		1637
		1638	my $prefix = qr<^~\Q$name\E/>;
		1639
		1640	# nuke player maps
		1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1642
1020	IO::AIO::aio_rmtree $temp;	1643	IO::AIO::aio_rmtree $temp;
		1644	}
		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
1021	}	1658	}
1022		1659
1023	=item cf::player::list_logins	1660	=item cf::player::list_logins
1024		1661
1025	Returns am arrayref of all valid playernames in the system, can take a	1662	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1663	while and may block, so not sync_job-capable, ever.
1027		1664
1028	=cut	1665	=cut
1029		1666
1030	sub list_logins {	1667	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1668	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1669	or return [];
1033		1670
1034	my @logins;	1671	my @logins;
1035		1672
1036	for my $login (@$dirs) {	1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1040		1683
1041	utf8::decode $login;	1684	utf8::decode $login;
1042	push @logins, $login;	1685	push @logins, $login;
1043	}	1686	}
1044		1687
…		…
1052		1695
1053	=cut	1696	=cut
1054		1697
1055	sub maps($) {	1698	sub maps($) {
1056	my ($pl) = @_;	1699	my ($pl) = @_;
		1700
		1701	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1702
1058	my $files = aio_readdir playerdir $pl	1703	my $files = aio_readdir playerdir $pl
1059	or return;	1704	or return;
1060		1705
1061	my @paths;	1706	my @paths;
…		…
1063	for (@$files) {	1708	for (@$files) {
1064	utf8::decode $_;	1709	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1710	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1711	next unless /^$PATH_SEP/o;
1067		1712
1068	s/\.map$//;	1713	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1714	}
1071		1715
1072	\@paths	1716	\@paths
1073	}	1717	}
1074		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1076		1724
1077	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1078		1726
1079	=cut	1727	=cut
1080		1728
1081	sub ext_reply($$$%) {	1729	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1083		1731
1084	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1733	}
1088		1734
1089	package cf;	1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		1747	=head3 cf::region
		1748
		1749	=over 4
		1750
		1751	=cut
		1752
		1753	package cf::region;
		1754
		1755	=item cf::region::find_by_path $path
		1756
		1757	Tries to decuce the likely region for a map knowing only its path.
		1758
		1759	=cut
		1760
		1761	sub find_by_path($) {
		1762	my ($path) = @_;
		1763
		1764	my ($match, $specificity);
		1765
		1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
		1774	}
1090		1775
1091	=back	1776	=back
1092
1093		1777
1094	=head3 cf::map	1778	=head3 cf::map
1095		1779
1096	=over 4	1780	=over 4
1097		1781
…		…
1101		1785
1102	use Fcntl;	1786	use Fcntl;
1103	use Coro::AIO;	1787	use Coro::AIO;
1104		1788
1105	use overload	1789	use overload
1106	'""' => \&as_string;	1790	'""' => \&as_string,
		1791	fallback => 1;
1107		1792
1108	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1110		1795
1111	sub generate_random_map {	1796	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1800
1114	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1802	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1119	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1120	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1812	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1813	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1814	)
1128	}	1815	}
1129		1816
		1817	=item cf::map->register ($regex, $prio)
		1818
		1819	Register a handler for the map path matching the given regex at the
		1820	givne priority (higher is better, built-in handlers have priority 0, the
		1821	default).
		1822
		1823	=cut
		1824
1130	sub register {	1825	sub register {
1131	my (undef, $regex) = @_;	1826	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1827	my $pkg = caller;
1133		1828
1134	no strict;	1829	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1830	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1831
1137	$EXT_MAP{$pkg} = qr<$regex>;	1832	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1833	}
1139		1834
1140	# also paths starting with '/'	1835	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1836	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1837
		1838	sub thawer_merge {
		1839	my ($self, $merge) = @_;
		1840
		1841	# we have to keep some variables in memory intact
		1842	local $self->{path};
		1843	local $self->{load_path};
		1844
		1845	$self->SUPER::thawer_merge ($merge);
		1846	}
1142		1847
1143	sub normalise {	1848	sub normalise {
1144	my ($path, $base) = @_;	1849	my ($path, $base) = @_;
		1850
		1851	$path = "$path"; # make sure its a string
		1852
		1853	$path =~ s/\.map$//;
1145		1854
1146	# map plan:	1855	# map plan:
1147	#	1856	#
1148	# /! non-realised random map exit (special hack!)	1857	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1858	# {... are special paths that are not being touched
…		…
1177		1886
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1887	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1888
1180	$path = normalise $path, $base;	1889	$path = normalise $path, $base;
1181		1890
1182	for my $pkg (keys %EXT_MAP) {	1891	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1892	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1893	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1894	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1187	return $self;	1896	return $self;
1188	}	1897	}
1189	}	1898	}
1190		1899
1191	Carp::carp "unable to resolve path '$path'.";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1901	()
1193	}	1902	}
1194		1903
1195	sub init {	1904	sub init {
1196	my ($self) = @_;	1905	my ($self) = @_;
…		…
1211		1920
1212	# the original (read-only) location	1921	# the original (read-only) location
1213	sub load_path {	1922	sub load_path {
1214	my ($self) = @_;	1923	my ($self) = @_;
1215		1924
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1925	"$MAPDIR/$self->{path}.map"
1217	}	1926	}
1218		1927
1219	# the temporary/swap location	1928	# the temporary/swap location
1220	sub save_path {	1929	sub save_path {
1221	my ($self) = @_;	1930	my ($self) = @_;
1222		1931
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1933	"$TMPDIR/$path.map"
1225	}	1934	}
1226		1935
1227	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1228	sub uniq_path {	1937	sub uniq_path {
1229	my ($self) = @_;	1938	my ($self) = @_;
1230		1939
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1941	"$UNIQUEDIR/$path"
1233	}	1942	}
1234		1943
1235	# and all this just because we cannot iterate over	1944	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	1945	my ($self) = @_;
1239		1946
1240	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1242	}	1950	}
1243		1951
1244	sub unlink_save {	1952	sub unlink_save {
1245	my ($self) = @_;	1953	my ($self) = @_;
1246		1954
1247	utf8::encode (my $save = $self->save_path);	1955	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1956	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1957	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1958	}
1251		1959
1252	sub load_header_from($) {	1960	sub load_header_from($) {
1253	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1254		1962
1255	utf8::encode $path;	1963	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1257	or return;	1965	or return;
1258		1966
1259	$self->_load_header ($path)	1967	$self->_load_header ($f)
1260	or return;	1968	or return;
1261		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
		1972
1262	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1263		1974
1264	1	1975	1
1265	}	1976	}
1266		1977
1267	sub load_orig {	1978	sub load_header_orig {
1268	my ($self) = @_;	1979	my ($self) = @_;
1269		1980
1270	$self->load_header_from ($self->load_path)	1981	$self->load_header_from ($self->load_path)
1271	}	1982	}
1272		1983
1273	sub load_temp {	1984	sub load_header_temp {
1274	my ($self) = @_;	1985	my ($self) = @_;
1275		1986
1276	$self->load_header_from ($self->save_path)	1987	$self->load_header_from ($self->save_path)
		1988	}
		1989
		1990	sub prepare_temp {
		1991	my ($self) = @_;
		1992
		1993	$self->last_access ((delete $self->{last_access})
		1994	|| $cf::RUNTIME); #d#
		1995	# safety
		1996	$self->{instantiate_time} = $cf::RUNTIME
		1997	if $self->{instantiate_time} > $cf::RUNTIME;
		1998	}
		1999
		2000	sub prepare_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->{load_original} = 1;
		2004	$self->{instantiate_time} = $cf::RUNTIME;
		2005	$self->last_access ($cf::RUNTIME);
		2006	$self->instantiate;
1277	}	2007	}
1278		2008
1279	sub load_header {	2009	sub load_header {
1280	my ($self) = @_;	2010	my ($self) = @_;
1281		2011
1282	if ($self->load_temp) {	2012	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	2013	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	2014	} else {
1289	$self->load_orig	2015	$self->load_header_orig
1290	or return;	2016	or return;
1291		2017	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	2018	}
		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
		2023	$self->default_region (cf::region::find_by_path $self->{path})
		2024	unless $self->default_region;
1297		2025
1298	1	2026	1
1299	}	2027	}
1300		2028
1301	sub find;	2029	sub find;
1302	sub find {	2030	sub find {
1303	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1304		2032
1305	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1306		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1308		2037
1309	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1312	or return;	2040	or return;
1313		2041
1314	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1315		2043
1316	$map->load_header	2044	$map->load_header
1317	or return;	2045	or return;
1318		2046
1319	if ($map->should_reset) {	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1320	$map->reset;	2052	$map->reset;
1321	undef $guard;
1322	$map = find $path	2053	return find $path;
1323	or return;
1324	}	2054	}
1325		2055
1326	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1327	}	2057	}
1328	}	2058	}
		2059
		2060	sub pre_load { }
		2061	#sub post_load { } # XS
1329		2062
1330	sub load {	2063	sub load {
1331	my ($self) = @_;	2064	my ($self) = @_;
1332		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1333	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1335		2072
		2073	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2075
1338	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1339		2077
1340	$self->alloc;	2078	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1342	or return;	2086	or return;
1343		2087
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1345	if delete $self->{load_original};	2089	if delete $self->{load_original};
1346		2090
1347	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2092	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2095	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1352	}	2099	}
1353	}	2100	}
1354		2101
1355	Coro::cede;	2102	$f->resolve_delayed_derefs;
1356		2103
		2104	cf::cede_to_tick;
1357	# now do the right thing for maps	2105	# now do the right thing for maps
1358	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2108	unless $self->difficulty;
1368	Coro::cede;	2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
1369	$self->activate;	2116	$self->activate;
1370	}	2117	}
1371		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
1373	}	2123	}
1374		2124
		2125	$self->post_load;
		2126	}
		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
1375	sub customise_for {	2131	sub customise_for {
1376	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1377		2133
1378	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2135	if $self->per_player;
1380		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1381	$self	2140	$self
1382	}	2141	}
1383		2142
1384	# find and load all maps in the 3x3 area around a map	2143	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2144	sub load_neighbours {
1386	my ($map) = @_;	2145	my ($map) = @_;
1387		2146
1388	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1389		2148
1390	for (0 .. 3) {	2149	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1392	or next;	2151	or next;
1393	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1394	or next;	2153	or next;
1395	$neigh->load;	2154	$neigh->load;
1396		2155
		2156	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2159	}
1400		2160
1401	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1403	or next;	2164	or next;
1404	$neigh->load;	2165	$neigh->load;
1405	}	2166	}
1406	}	2167	}
1407		2168
…		…
1412	}	2173	}
1413		2174
1414	sub do_load_sync {	2175	sub do_load_sync {
1415	my ($map) = @_;	2176	my ($map) = @_;
1416		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1417	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1418	}	2182	}
1419		2183
1420	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2185	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2186
1434	sub find_async {	2187	sub find_async {
1435	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1436		2189
1437	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1438		2191
1439	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2194	}
		2195
		2196	$MAP_PREFETCH{$path} |= $load;
		2197
		2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
		2201	while (%MAP_PREFETCH) {
		2202	while (my ($k, $v) = each %MAP_PREFETCH) {
		2203	if (my $map = find $k) {
		2204	$map->load if $v;
		2205	}
		2206
		2207	delete $MAP_PREFETCH{$k};
		2208	}
		2209	}
		2210	undef $MAP_PREFETCHER;
1441	}	2211	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2212	$MAP_PREFETCHER->prio (6);
1445		2213
1446	()	2214	()
1447	}	2215	}
1448		2216
1449	sub save {	2217	sub save {
1450	my ($self) = @_;	2218	my ($self) = @_;
1451		2219
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2220	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2221
1454	$self->{last_save} = $cf::RUNTIME;	2222	$self->{last_save} = $cf::RUNTIME;
1455		2223
1456	return unless $self->dirty;	2224	return unless $self->dirty;
1457		2225
…		…
1463	return if $self->{deny_save};	2231	return if $self->{deny_save};
1464		2232
1465	local $self->{last_access} = $self->last_access;#d#	2233	local $self->{last_access} = $self->last_access;#d#
1466		2234
1467	cf::async {	2235	cf::async {
		2236	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2237	$_->contr->save for $self->players;
1469	};	2238	};
		2239
		2240	cf::get_slot 0.02;
1470		2241
1471	if ($uniq) {	2242	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2243	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2244	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2245	} else {
…		…
1480	my ($self) = @_;	2251	my ($self) = @_;
1481		2252
1482	# save first because save cedes	2253	# save first because save cedes
1483	$self->save;	2254	$self->save;
1484		2255
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2257
1487	return if $self->players;	2258	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2259	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2260	return if $self->{deny_save};
1490		2261
		2262	$self->in_memory (cf::MAP_SWAPPED);
		2263
		2264	$self->deactivate;
		2265	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2266	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2267	}
1494		2268
1495	sub reset_at {	2269	sub reset_at {
1496	my ($self) = @_;	2270	my ($self) = @_;
1497		2271
1498	# TODO: safety, remove and allow resettable per-player maps	2272	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2273	return 1e99 if $self->{deny_reset};
1501		2274
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2275	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2276	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2277
…		…
1509	my ($self) = @_;	2282	my ($self) = @_;
1510		2283
1511	$self->reset_at <= $cf::RUNTIME	2284	$self->reset_at <= $cf::RUNTIME
1512	}	2285	}
1513		2286
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2287	sub reset {
1529	my ($self) = @_;	2288	my ($self) = @_;
1530		2289
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2290	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2291
1533	return if $self->players;	2292	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2293
1536	warn "resetting map ", $self->path;#d#	2294	warn "resetting map ", $self->path, "\n";
		2295
		2296	$self->in_memory (cf::MAP_SWAPPED);
		2297
		2298	# need to save uniques path
		2299	unless ($self->{deny_save}) {
		2300	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2301
		2302	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2303	if $uniq;
		2304	}
1537		2305
1538	delete $cf::MAP{$self->path};	2306	delete $cf::MAP{$self->path};
1539		2307
1540	$self->in_memory (cf::MAP_SWAPPED);	2308	$self->deactivate;
		2309	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2310	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2311
1545	$self->unlink_save;	2312	$self->unlink_save;
1546	$self->destroy;	2313	$self->destroy;
1547	}	2314	}
1548		2315
1549	my $nuke_counter = "aaaa";	2316	my $nuke_counter = "aaaa";
1550		2317
1551	sub nuke {	2318	sub nuke {
1552	my ($self) = @_;	2319	my ($self) = @_;
1553		2320
		2321	{
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
		2324	delete $cf::MAP{$self->path};
		2325
		2326	$self->unlink_save;
		2327
		2328	bless $self, "cf::map";
		2329	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2330	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2331	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2332	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2333
		2334	$cf::MAP{$self->path} = $self;
		2335	}
		2336
1557	$self->reset; # polite request, might not happen	2337	$self->reset; # polite request, might not happen
		2338	}
		2339
		2340	=item $maps = cf::map::tmp_maps
		2341
		2342	Returns an arrayref with all map paths of currently instantiated and saved
		2343	maps. May block.
		2344
		2345	=cut
		2346
		2347	sub tmp_maps() {
		2348	[
		2349	map {
		2350	utf8::decode $_;
		2351	/\.map$/
		2352	? normalise $_
		2353	: ()
		2354	} @{ aio_readdir $TMPDIR or [] }
		2355	]
		2356	}
		2357
		2358	=item $maps = cf::map::random_maps
		2359
		2360	Returns an arrayref with all map paths of currently instantiated and saved
		2361	random maps. May block.
		2362
		2363	=cut
		2364
		2365	sub random_maps() {
		2366	[
		2367	map {
		2368	utf8::decode $_;
		2369	/\.map$/
		2370	? normalise "?random/$_"
		2371	: ()
		2372	} @{ aio_readdir $RANDOMDIR or [] }
		2373	]
1558	}	2374	}
1559		2375
1560	=item cf::map::unique_maps	2376	=item cf::map::unique_maps
1561		2377
1562	Returns an arrayref of paths of all shared maps that have	2378	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2379	instantiated unique items. May block.
1564		2380
1565	=cut	2381	=cut
1566		2382
1567	sub unique_maps() {	2383	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2384	[
1569	or return;	2385	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2386	utf8::decode $_;
1575	next if /\.pst$/;	2387	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2388	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2389	? ()
		2390	: normalise $_
		2391	} @{ aio_readdir $UNIQUEDIR or [] }
		2392	]
		2393	}
1577		2394
		2395	=item cf::map::static_maps
		2396
		2397	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2398	file in the shared directory excluding F</styles> and F</editor>). May
		2399	block.
		2400
		2401	=cut
		2402
		2403	sub static_maps() {
		2404	my @dirs = "";
		2405	my @maps;
		2406
		2407	while (@dirs) {
		2408	my $dir = shift @dirs;
		2409
		2410	next if $dir eq "/styles" || $dir eq "/editor";
		2411
		2412	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2413	or return;
		2414
		2415	for (@$files) {
1578	s/\.map$//;	2416	s/\.map$// or next;
1579	push @paths, $_;	2417	utf8::decode $_;
1580	}	2418	push @maps, "$dir/$_";
		2419	}
1581		2420
1582	\@paths	2421	push @dirs, map "$dir/$_", @$dirs;
1583	}	2422	}
1584		2423
1585	package cf;	2424	\@maps
		2425	}
1586		2426
1587	=back	2427	=back
1588		2428
1589	=head3 cf::object	2429	=head3 cf::object
1590		2430
…		…
1594		2434
1595	=over 4	2435	=over 4
1596		2436
1597	=item $ob->inv_recursive	2437	=item $ob->inv_recursive
1598		2438
1599	Returns the inventory of the object _and_ their inventories, recursively.	2439	Returns the inventory of the object I<and> their inventories, recursively,
		2440	but I<not> the object itself.
1600		2441
1601	=cut	2442	=cut
1602		2443
1603	sub inv_recursive_;	2444	sub inv_recursive_;
1604	sub inv_recursive_ {	2445	sub inv_recursive_ {
…		…
1607		2448
1608	sub inv_recursive {	2449	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2450	inv_recursive_ inv $_[0]
1610	}	2451	}
1611		2452
		2453	=item $ref = $ob->ref
		2454
		2455	Creates and returns a persistent reference to an object that can be stored as a string.
		2456
		2457	=item $ob = cf::object::deref ($refstring)
		2458
		2459	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2460	even if the object actually exists. May block.
		2461
		2462	=cut
		2463
		2464	sub deref {
		2465	my ($ref) = @_;
		2466
		2467	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2468	my ($uuid, $name) = ($1, $2);
		2469	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2470	or return;
		2471	$pl->ob->uuid eq $uuid
		2472	or return;
		2473
		2474	$pl->ob
		2475	} else {
		2476	warn "$ref: cannot resolve object reference\n";
		2477	undef
		2478	}
		2479	}
		2480
1612	package cf;	2481	package cf;
1613		2482
1614	=back	2483	=back
1615		2484
1616	=head3 cf::object::player	2485	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2491	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2492	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2493	dialogue with the given NPC character.
1625		2494
1626	=cut	2495	=cut
		2496
		2497	our $SAY_CHANNEL = {
		2498	id => "say",
		2499	title => "Map",
		2500	reply => "say ",
		2501	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2502	};
		2503
		2504	our $CHAT_CHANNEL = {
		2505	id => "chat",
		2506	title => "Chat",
		2507	reply => "chat ",
		2508	tooltip => "Player chat and shouts, global to the server.",
		2509	};
1627		2510
1628	# rough implementation of a future "reply" method that works	2511	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2512	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2513	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2514	sub cf::object::player::reply($$$;$) {
…		…
1633		2516
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2517	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2518
1636	if ($self->{record_replies}) {	2519	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2520	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2521
1638	} else {	2522	} else {
		2523	my $pl = $self->contr;
		2524
		2525	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2526	my $dialog = $pl->{npc_dialog};
		2527	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2528
		2529	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2530	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2531	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2532	}
1641	}	2533	}
		2534	}
		2535
		2536	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2537
		2538	=cut
		2539
		2540	sub cf::object::send_msg {
		2541	my $pl = shift->contr
		2542	or return;
		2543	$pl->send_msg (@_);
1642	}	2544	}
1643		2545
1644	=item $player_object->may ("access")	2546	=item $player_object->may ("access")
1645		2547
1646	Returns wether the given player is authorized to access resource "access"	2548	Returns wether the given player is authorized to access resource "access"
…		…
1659		2561
1660	=item $player_object->enter_link	2562	=item $player_object->enter_link
1661		2563
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2564	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2565
1664	The player should be reasonably safe there for short amounts of time. You	2566	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2567	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2568	though, as the palyer cannot control the character while it is on the link
		2569	map.
1666		2570
1667	Will never block.	2571	Will never block.
1668		2572
1669	=item $player_object->leave_link ($map, $x, $y)	2573	=item $player_object->leave_link ($map, $x, $y)
1670		2574
…		…
1678	=cut	2582	=cut
1679		2583
1680	sub link_map {	2584	sub link_map {
1681	unless ($LINK_MAP) {	2585	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2586	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2587	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2588	$LINK_MAP->load;
1685	}	2589	}
1686		2590
1687	$LINK_MAP	2591	$LINK_MAP
1688	}	2592	}
…		…
1693	$self->deactivate_recursive;	2597	$self->deactivate_recursive;
1694		2598
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2599	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2600
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2601	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2602	if $self->map && $self->map->{path} ne "{link}";
1699		2603
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2604	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2605	}
1702		2606
1703	sub cf::object::player::leave_link {	2607	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2608	my ($self, $map, $x, $y) = @_;
		2609
		2610	return unless $self->contr->active;
1705		2611
1706	my $link_pos = delete $self->{_link_pos};	2612	my $link_pos = delete $self->{_link_pos};
1707		2613
1708	unless ($map) {	2614	unless ($map) {
1709	# restore original map position	2615	# restore original map position
…		…
1720	($x, $y) = (-1, -1)	2626	($x, $y) = (-1, -1)
1721	unless (defined $x) && (defined $y);	2627	unless (defined $x) && (defined $y);
1722		2628
1723	# use -1 or undef as default coordinates, not 0, 0	2629	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2630	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2631	if $x <= 0 && $y <= 0;
1726		2632
1727	$map->load;	2633	$map->load;
1728	$map->load_diag;	2634	$map->load_neighbours;
1729		2635
1730	return unless $self->contr->active;	2636	return unless $self->contr->active;
		2637
		2638	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2639	$self->enter_map ($map, $x, $y);
		2640
		2641	# only activate afterwards, to support waiting in hooks
1731	$self->activate_recursive;	2642	$self->activate_recursive;
1732	$self->enter_map ($map, $x, $y);
1733	}	2643	}
1734		2644
1735	cf::player->attach (	2645	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2646
1739	# abort map switching before logout	2647	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2648	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2649	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2650	the new (success) or old (failed) map position. In either case, $done will
1743	};	2651	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2652
1749	# try to abort aborted map switching on player login :)	2653	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2654	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2655
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2656	=cut
		2657
		2658	our $GOTOGEN;
1770		2659
1771	sub cf::object::player::goto {	2660	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2661	my ($self, $path, $x, $y, $check, $done) = @_;
		2662
		2663	# do generation counting so two concurrent goto's will be executed in-order
		2664	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2665
1774	$self->enter_link;	2666	$self->enter_link;
1775		2667
1776	(async {	2668	(async {
1777	my $map = cf::map::find $path;	2669	$Coro::current->{desc} = "player::goto $path $x $y";
		2670
		2671	# *tag paths override both path and x|y
		2672	if ($path =~ /^\*(.*)$/) {
		2673	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2674	my $ob = $obs[rand @obs];
		2675
		2676	# see if we actually can go there
		2677	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2678	$ob = $obs[rand @obs];
		2679	} else {
		2680	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2681	}
		2682	# else put us there anyways for now #d#
		2683
		2684	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2685	} else {
		2686	($path, $x, $y) = (undef, undef, undef);
		2687	}
		2688	}
		2689
		2690	my $map = eval {
		2691	my $map = defined $path ? cf::map::find $path : undef;
		2692
		2693	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2694	$map = $map->customise_for ($self);
1779		2695	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2696	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2697	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2698	}
1784		2699
		2700	$map
		2701	};
		2702
		2703	if ($@) {
		2704	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2705	LOG llevError | logBacktrace, Carp::longmess $@;
		2706	}
		2707
		2708	if ($gen == $self->{_goto_generation}) {
		2709	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2710	$self->leave_link ($map, $x, $y);
		2711	}
		2712
		2713	$done->() if $done;
1786	})->prio (1);	2714	})->prio (1);
1787	}	2715	}
1788		2716
1789	=item $player_object->enter_exit ($exit_object)	2717	=item $player_object->enter_exit ($exit_object)
1790		2718
…		…
1792		2720
1793	sub parse_random_map_params {	2721	sub parse_random_map_params {
1794	my ($spec) = @_;	2722	my ($spec) = @_;
1795		2723
1796	my $rmp = { # defaults	2724	my $rmp = { # defaults
1797	xsize => 10,	2725	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2726	ysize => (cf::rndm 15, 40),
		2727	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2728	#layout => string,
1799	};	2729	};
1800		2730
1801	for (split /\n/, $spec) {	2731	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2732	my ($k, $v) = split /\s+/, $_, 2;
1803		2733
…		…
1815	# that depends on the exit object	2745	# that depends on the exit object
1816		2746
1817	my $rmp = parse_random_map_params $exit->msg;	2747	my $rmp = parse_random_map_params $exit->msg;
1818		2748
1819	if ($exit->map) {	2749	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2750	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2751	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2752	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2753	$rmp->{origin_y} = $exit->y;
		2754
		2755	$exit->map->touch;
1824	}	2756	}
1825		2757
1826	$rmp->{random_seed} ||= $exit->random_seed;	2758	$rmp->{random_seed} ||= $exit->random_seed;
1827		2759
1828	my $data = cf::to_json $rmp;	2760	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2761	my $md5 = Digest::MD5::md5_hex $data;
		2762	my $meta = "$RANDOMDIR/$md5.meta";
1830		2763
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2764	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2765	aio_write $fh, 0, (length $data), $data, 0;
		2766	undef $fh;
		2767	aio_rename "$meta~", $meta;
1833		2768
		2769	my $slaying = "?random/$md5";
		2770
		2771	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2772	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2773	$exit->msg (undef);
		2774	}
1836	}	2775	}
1837	}	2776	}
1838		2777
1839	sub cf::object::player::enter_exit {	2778	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2779	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2781	return unless $self->type == cf::PLAYER;
1843		2782
1844	$self->enter_link;	2783	$self->enter_link;
1845		2784
1846	(async {	2785	(async {
1847	$self->deactivate_recursive; # just to be sure	2786	$Coro::current->{desc} = "enter_exit";
		2787
1848	unless (eval {	2788	unless (eval {
		2789	$self->deactivate_recursive; # just to be sure
		2790
		2791	# random map handling
		2792	{
		2793	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2794
1849	prepare_random_map $exit	2795	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2796	if $exit->slaying eq "/!";
		2797	}
1851		2798
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2799	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2800	my $x = $exit->stats->hp;
		2801	my $y = $exit->stats->sp;
1854		2802
		2803	$self->goto ($map, $x, $y);
		2804
		2805	# if exit is damned, update players death & WoR home-position
		2806	$self->contr->savebed ($map, $x, $y)
		2807	if $exit->flag (cf::FLAG_DAMNED);
		2808
1855	1;	2809	1
1856	}) {	2810	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2811	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	2812	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2813	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2814	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2815
1862	warn "ERROR in enter_exit: $@";	2816	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2817	$self->leave_link;
1864	}	2818	}
1865	})->prio (1);	2819	})->prio (1);
…		…
1878		2832
1879	sub cf::client::send_drawinfo {	2833	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2834	my ($self, $text, $flags) = @_;
1881		2835
1882	utf8::encode $text;	2836	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2837	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2838	}
1885		2839
		2840	=item $client->send_big_packet ($pkt)
		2841
		2842	Like C<send_packet>, but tries to compress large packets, and fragments
		2843	them as required.
		2844
		2845	=cut
		2846
		2847	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2848
		2849	sub cf::client::send_big_packet {
		2850	my ($self, $pkt) = @_;
		2851
		2852	# try lzf for large packets
		2853	$pkt = "lzf " . Compress::LZF::compress $pkt
		2854	if 1024 <= length $pkt and $self->{can_lzf};
		2855
		2856	# split very large packets
		2857	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2858	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2859	$pkt = "frag";
		2860	}
		2861
		2862	$self->send_packet ($pkt);
		2863	}
		2864
		2865	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2866
		2867	Send a drawinfo or msg packet to the client, formatting the msg for the
		2868	client if neccessary. C<$type> should be a string identifying the type of
		2869	the message, with C<log> being the default. If C<$color> is negative, suppress
		2870	the message unless the client supports the msg packet.
		2871
		2872	=cut
		2873
		2874	# non-persistent channels (usually the info channel)
		2875	our %CHANNEL = (
		2876	"c/motd" => {
		2877	id => "infobox",
		2878	title => "MOTD",
		2879	reply => undef,
		2880	tooltip => "The message of the day",
		2881	},
		2882	"c/identify" => {
		2883	id => "infobox",
		2884	title => "Identify",
		2885	reply => undef,
		2886	tooltip => "Items recently identified",
		2887	},
		2888	"c/examine" => {
		2889	id => "infobox",
		2890	title => "Examine",
		2891	reply => undef,
		2892	tooltip => "Signs and other items you examined",
		2893	},
		2894	"c/shopinfo" => {
		2895	id => "infobox",
		2896	title => "Shop Info",
		2897	reply => undef,
		2898	tooltip => "What your bargaining skill tells you about the shop",
		2899	},
		2900	"c/book" => {
		2901	id => "infobox",
		2902	title => "Book",
		2903	reply => undef,
		2904	tooltip => "The contents of a note or book",
		2905	},
		2906	"c/lookat" => {
		2907	id => "infobox",
		2908	title => "Look",
		2909	reply => undef,
		2910	tooltip => "What you saw there",
		2911	},
		2912	"c/who" => {
		2913	id => "infobox",
		2914	title => "Players",
		2915	reply => undef,
		2916	tooltip => "Shows players who are currently online",
		2917	},
		2918	"c/body" => {
		2919	id => "infobox",
		2920	title => "Body Parts",
		2921	reply => undef,
		2922	tooltip => "Shows which body parts you posess and are available",
		2923	},
		2924	"c/statistics" => {
		2925	id => "infobox",
		2926	title => "Statistics",
		2927	reply => undef,
		2928	tooltip => "Shows your primary statistics",
		2929	},
		2930	"c/skills" => {
		2931	id => "infobox",
		2932	title => "Skills",
		2933	reply => undef,
		2934	tooltip => "Shows your experience per skill and item power",
		2935	},
		2936	"c/shopitems" => {
		2937	id => "infobox",
		2938	title => "Shop Items",
		2939	reply => undef,
		2940	tooltip => "Shows the items currently for sale in this shop",
		2941	},
		2942	"c/resistances" => {
		2943	id => "infobox",
		2944	title => "Resistances",
		2945	reply => undef,
		2946	tooltip => "Shows your resistances",
		2947	},
		2948	"c/pets" => {
		2949	id => "infobox",
		2950	title => "Pets",
		2951	reply => undef,
		2952	tooltip => "Shows information abotu your pets/a specific pet",
		2953	},
		2954	"c/perceiveself" => {
		2955	id => "infobox",
		2956	title => "Perceive Self",
		2957	reply => undef,
		2958	tooltip => "You gained detailed knowledge about yourself",
		2959	},
		2960	"c/uptime" => {
		2961	id => "infobox",
		2962	title => "Uptime",
		2963	reply => undef,
		2964	tooltip => "How long the server has been running since last restart",
		2965	},
		2966	"c/mapinfo" => {
		2967	id => "infobox",
		2968	title => "Map Info",
		2969	reply => undef,
		2970	tooltip => "Information related to the maps",
		2971	},
		2972	"c/party" => {
		2973	id => "party",
		2974	title => "Party",
		2975	reply => "gsay ",
		2976	tooltip => "Messages and chat related to your party",
		2977	},
		2978	"c/death" => {
		2979	id => "death",
		2980	title => "Death",
		2981	reply => undef,
		2982	tooltip => "Reason for and more info about your most recent death",
		2983	},
		2984	"c/say" => $SAY_CHANNEL,
		2985	"c/chat" => $CHAT_CHANNEL,
		2986	);
		2987
		2988	sub cf::client::send_msg {
		2989	my ($self, $channel, $msg, $color, @extra) = @_;
		2990
		2991	$msg = $self->pl->expand_cfpod ($msg)
		2992	unless $color & cf::NDI_VERBATIM;
		2993
		2994	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2995
		2996	# check predefined channels, for the benefit of C
		2997	if ($CHANNEL{$channel}) {
		2998	$channel = $CHANNEL{$channel};
		2999
		3000	$self->ext_msg (channel_info => $channel);
		3001	$channel = $channel->{id};
		3002
		3003	} elsif (ref $channel) {
		3004	# send meta info to client, if not yet sent
		3005	unless (exists $self->{channel}{$channel->{id}}) {
		3006	$self->{channel}{$channel->{id}} = $channel;
		3007	$self->ext_msg (channel_info => $channel);
		3008	}
		3009
		3010	$channel = $channel->{id};
		3011	}
		3012
		3013	return unless @extra || length $msg;
		3014
		3015	# default colour, mask it out
		3016	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3017	if $color & cf::NDI_DEF;
		3018
		3019	my $pkt = "msg "
		3020	. $self->{json_coder}->encode (
		3021	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3022	);
		3023
		3024	$self->send_big_packet ($pkt);
		3025	}
		3026
		3027	=item $client->ext_msg ($type, @msg)
		3028
		3029	Sends an ext event to the client.
		3030
		3031	=cut
		3032
		3033	sub cf::client::ext_msg($$@) {
		3034	my ($self, $type, @msg) = @_;
		3035
		3036	if ($self->extcmd == 2) {
		3037	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3038	} elsif ($self->extcmd == 1) { # TODO: remove
		3039	push @msg, msgtype => "event_$type";
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3041	}
		3042	}
		3043
		3044	=item $client->ext_reply ($msgid, @msg)
		3045
		3046	Sends an ext reply to the client.
		3047
		3048	=cut
		3049
		3050	sub cf::client::ext_reply($$@) {
		3051	my ($self, $id, @msg) = @_;
		3052
		3053	if ($self->extcmd == 2) {
		3054	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3055	} elsif ($self->extcmd == 1) {
		3056	#TODO: version 1, remove
		3057	unshift @msg, msgtype => "reply", msgid => $id;
		3058	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3059	}
		3060	}
1886		3061
1887	=item $success = $client->query ($flags, "text", \&cb)	3062	=item $success = $client->query ($flags, "text", \&cb)
1888		3063
1889	Queues a query to the client, calling the given callback with	3064	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3065	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3066	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		3067
1893	Queries can fail, so check the return code. Or don't, as queries will become	3068	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	3069	become reliable at some point in the future.
1895		3070
1896	=cut	3071	=cut
1897		3072
1898	sub cf::client::query {	3073	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	3074	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	3082	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3083	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		3084
1910	$self->send_packet ($self->{query_queue}[0][0])	3085	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	3086	if @{ $self->{query_queue} } == 1;
		3087
		3088	1
1912	}	3089	}
1913		3090
1914	cf::client->attach (	3091	cf::client->attach (
		3092	on_connect => sub {
		3093	my ($ns) = @_;
		3094
		3095	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3096	},
1915	on_reply => sub {	3097	on_reply => sub {
1916	my ($ns, $msg) = @_;	3098	my ($ns, $msg) = @_;
1917		3099
1918	# this weird shuffling is so that direct followup queries	3100	# this weird shuffling is so that direct followup queries
1919	# get handled first	3101	# get handled first
1920	my $queue = delete $ns->{query_queue}	3102	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	3103	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		3104
1923	(shift @$queue)->[1]->($msg);	3105	(shift @$queue)->[1]->($msg);
		3106	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		3107
1925	push @{ $ns->{query_queue} }, @$queue;	3108	push @{ $ns->{query_queue} }, @$queue;
1926		3109
1927	if (@{ $ns->{query_queue} } == @$queue) {	3110	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	3111	if (@$queue) {
…		…
1930	} else {	3113	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3114	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	3115	}
1933	}	3116	}
1934	},	3117	},
		3118	on_exticmd => sub {
		3119	my ($ns, $buf) = @_;
		3120
		3121	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3122
		3123	if (ref $msg) {
		3124	my ($type, $reply, @payload) =
		3125	"ARRAY" eq ref $msg
		3126	? @$msg
		3127	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3128
		3129	my @reply;
		3130
		3131	if (my $cb = $EXTICMD{$type}) {
		3132	@reply = $cb->($ns, @payload);
		3133	}
		3134
		3135	$ns->ext_reply ($reply, @reply)
		3136	if $reply;
		3137
		3138	} else {
		3139	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3140	}
		3141
		3142	cf::override;
		3143	},
1935	);	3144	);
1936		3145
1937	=item $client->async (\&cb)	3146	=item $client->async (\&cb)
1938		3147
1939	Create a new coroutine, running the specified callback. The coroutine will	3148	Create a new coroutine, running the specified callback. The coroutine will
…		…
1955		3164
1956	$coro	3165	$coro
1957	}	3166	}
1958		3167
1959	cf::client->attach (	3168	cf::client->attach (
1960	on_destroy => sub {	3169	on_client_destroy => sub {
1961	my ($ns) = @_;	3170	my ($ns) = @_;
1962		3171
1963	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3172	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1964	},	3173	},
1965	);	3174	);
…		…
1980	our $safe = new Safe "safe";	3189	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3190	our $safe_hole = new Safe::Hole;
1982		3191
1983	$SIG{FPE} = 'IGNORE';	3192	$SIG{FPE} = 'IGNORE';
1984		3193
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3194	$safe->permit_only (Opcode::opset qw(
		3195	:base_core :base_mem :base_orig :base_math :base_loop
		3196	grepstart grepwhile mapstart mapwhile
		3197	sort time
		3198	));
1986		3199
1987	# here we export the classes and methods available to script code	3200	# here we export the classes and methods available to script code
1988		3201
1989	=pod	3202	=pod
1990		3203
1991	The following fucntions and emthods are available within a safe environment:	3204	The following functions and methods are available within a safe environment:
1992		3205
1993	cf::object contr pay_amount pay_player map	3206	cf::object
		3207	contr pay_amount pay_player map x y force_find force_add destroy
		3208	insert remove name archname title slaying race decrease split
		3209	value
		3210
1994	cf::object::player player	3211	cf::object::player
1995	cf::player peaceful	3212	player
1996	cf::map trigger	3213
		3214	cf::player
		3215	peaceful
		3216
		3217	cf::map
		3218	trigger
1997		3219
1998	=cut	3220	=cut
1999		3221
2000	for (	3222	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3223	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3224	insert remove inv nrof name archname title slaying race
		3225	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3226	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3227	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3228	["cf::map" => qw(trigger)],
2005	) {	3229	) {
2006	no strict 'refs';	3230	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3231	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3232	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2026		3250
2027	my $qcode = $code;	3251	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3252	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3253	$qcode =~ s/\n/\\n/g;
2030		3254
		3255	%vars = (_dummy => 0) unless %vars;
		3256
		3257	my @res;
2031	local $_;	3258	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;
2033		3259
2034	my $eval =	3260	my $eval =
2035	"do {\n"	3261	"do {\n"
2036	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3262	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2037	. "#line 0 \"{$qcode}\"\n"	3263	. "#line 0 \"{$qcode}\"\n"
2038	. $code	3264	. $code
2039	. "\n}"	3265	. "\n}"
2040	;	3266	;
2041		3267
		3268	if ($CFG{safe_eval}) {
2042	sub_generation_inc;	3269	sub_generation_inc;
		3270	local @safe::cf::_safe_eval_args = values %vars;
2043	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3271	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2044	sub_generation_inc;	3272	sub_generation_inc;
		3273	} else {
		3274	local @cf::_safe_eval_args = values %vars;
		3275	@res = wantarray ? eval eval : scalar eval $eval;
		3276	}
2045		3277
2046	if ($@) {	3278	if ($@) {
2047	warn "$@";	3279	warn "$@";
2048	warn "while executing safe code '$code'\n";	3280	warn "while executing safe code '$code'\n";
2049	warn "with arguments " . (join " ", %vars) . "\n";	3281	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2068	=cut	3300	=cut
2069		3301
2070	sub register_script_function {	3302	sub register_script_function {
2071	my ($fun, $cb) = @_;	3303	my ($fun, $cb) = @_;
2072		3304
2073	no strict 'refs';	3305	$fun = "safe::$fun" if $CFG{safe_eval};
2074	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3306	*$fun = $safe_hole->wrap ($cb);
2075	}	3307	}
2076		3308
2077	=back	3309	=back
2078		3310
2079	=cut	3311	=cut
2080		3312
2081	#############################################################################	3313	#############################################################################
		3314	# the server's init and main functions
2082		3315
2083	=head2 EXTENSION DATABASE SUPPORT	3316	sub load_facedata($) {
		3317	my ($path) = @_;
2084		3318
2085	Crossfire maintains a very simple database for extension use. It can	3319	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3320	# for this (global event?)
2087	excludes objects.	3321	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3322
2089	The parameter C<$family> should best start with the name of the extension	3323	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3324
2092	=over 4	3325	warn "loading facedata from $path\n";
2093		3326
2094	=item $hashref = cf::db_get $family	3327	my $facedata;
		3328	0 < aio_load $path, $facedata
		3329	or die "$path: $!";
2095		3330
2096	Return a hashref for use by the extension C<$family>, which can be	3331	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3332
2100	=item $value = cf::db_get $family => $key	3333	$facedata->{version} == 2
		3334	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3335
2102	Returns a single value from the database	3336	# patch in the exptable
2103		3337	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2104	=item cf::db_put $family => $hashref	3338	$facedata->{resource}{"res/exp_table"} = {
2105		3339	type => FT_RSRC,
2106	Stores the given family hashref into the database. Updates are delayed, if	3340	data => $exp_table,
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3341	hash => (Digest::MD5::md5 $exp_table),
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3342	};
		3343	cf::cede_to_tick;
2155		3344
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3345	{
		3346	my $faces = $facedata->{faceinfo};
2160		3347
2161	sub db_get($;$) {	3348	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3349	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3350
2167	sub db_put($$;$) {	3351	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3352	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3353	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2170	} else {	3354	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3355
2176	cf::global->attach (	3356	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3357	}
2181	);
2182	}
2183		3358
2184	#############################################################################	3359	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3360	next unless $info->{smooth};
2186		3361
2187	sub cfg_load {	3362	my $idx = cf::face::find $face
		3363	or next;
		3364
		3365	if (my $smooth = cf::face::find $info->{smooth}) {
		3366	cf::face::set_smooth $idx, $smooth;
		3367	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3368	} else {
		3369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3370	}
		3371
		3372	cf::cede_to_tick;
		3373	}
		3374	}
		3375
		3376	{
		3377	my $anims = $facedata->{animinfo};
		3378
		3379	while (my ($anim, $info) = each %$anims) {
		3380	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3381	cf::cede_to_tick;
		3382	}
		3383
		3384	cf::anim::invalidate_all; # d'oh
		3385	}
		3386
		3387	{
		3388	my $res = $facedata->{resource};
		3389
		3390	while (my ($name, $info) = each %$res) {
		3391	if (defined $info->{type}) {
		3392	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3393
		3394	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3395	cf::face::set_type $idx, $info->{type};
		3396	} else {
		3397	$RESOURCE{$name} = $info;
		3398	}
		3399
		3400	cf::cede_to_tick;
		3401	}
		3402	}
		3403
		3404	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3405
		3406	1
		3407	}
		3408
		3409	cf::global->attach (on_resource_update => sub {
		3410	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3411	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3412
		3413	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3414	my $sound = $soundconf->{compat}[$_]
		3415	or next;
		3416
		3417	my $face = cf::face::find "sound/$sound->[1]";
		3418	cf::sound::set $sound->[0] => $face;
		3419	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3420	}
		3421
		3422	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3423	my $face = cf::face::find "sound/$v";
		3424	cf::sound::set $k => $face;
		3425	}
		3426	}
		3427	});
		3428
		3429	register_exticmd fx_want => sub {
		3430	my ($ns, $want) = @_;
		3431
		3432	while (my ($k, $v) = each %$want) {
		3433	$ns->fx_want ($k, $v);
		3434	}
		3435	};
		3436
		3437	sub load_resource_file($) {
		3438	my $guard = lock_acquire "load_resource_file";
		3439
		3440	my $status = load_resource_file_ $_[0];
		3441	get_slot 0.1, 100;
		3442	cf::arch::commit_load;
		3443
		3444	$status
		3445	}
		3446
		3447	sub reload_regions {
		3448	# HACK to clear player env face cache, we need some signal framework
		3449	# for this (global event?)
		3450	%ext::player_env::MUSIC_FACE_CACHE = ();
		3451
		3452	load_resource_file "$MAPDIR/regions"
		3453	or die "unable to load regions file\n";
		3454
		3455	for (cf::region::list) {
		3456	$_->{match} = qr/$_->{match}/
		3457	if exists $_->{match};
		3458	}
		3459	}
		3460
		3461	sub reload_facedata {
		3462	load_facedata "$DATADIR/facedata"
		3463	or die "unable to load facedata\n";
		3464	}
		3465
		3466	sub reload_archetypes {
		3467	load_resource_file "$DATADIR/archetypes"
		3468	or die "unable to load archetypes\n";
		3469	}
		3470
		3471	sub reload_treasures {
		3472	load_resource_file "$DATADIR/treasures"
		3473	or die "unable to load treasurelists\n";
		3474	}
		3475
		3476	sub reload_resources {
		3477	warn "reloading resource files...\n";
		3478
		3479	reload_facedata;
		3480	reload_archetypes;
		3481	reload_regions;
		3482	reload_treasures;
		3483
		3484	warn "finished reloading resource files\n";
		3485	}
		3486
		3487	sub reload_config {
		3488	warn "reloading config file...\n";
		3489
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3490	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3491	or return;
2190		3492
2191	local $/;	3493	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3494	*CFG = YAML::XS::Load scalar <$fh>;
2193		3495
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3496	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3497
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3498	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3499	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2201	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3503	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2202	and die "WARNING: m(un)lockall failed: $!\n";	3504	and die "WARNING: m(un)lockall failed: $!\n";
2203	};	3505	};
2204	warn $@ if $@;	3506	warn $@ if $@;
2205	}	3507	}
		3508
		3509	warn "finished reloading resource files\n";
		3510	}
		3511
		3512	sub pidfile() {
		3513	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3514	or die "$PIDFILE: $!";
		3515	flock $fh, &Fcntl::LOCK_EX
		3516	or die "$PIDFILE: flock: $!";
		3517	$fh
		3518	}
		3519
		3520	# make sure only one server instance is running at any one time
		3521	sub atomic {
		3522	my $fh = pidfile;
		3523
		3524	my $pid = <$fh>;
		3525	kill 9, $pid if $pid > 0;
		3526
		3527	seek $fh, 0, 0;
		3528	print $fh $$;
		3529	}
		3530
		3531	sub main_loop {
		3532	warn "EV::loop starting\n";
		3533	if (1) {
		3534	EV::loop;
		3535	}
		3536	warn "EV::loop returned\n";
		3537	goto &main_loop unless $REALLY_UNLOOP;
2206	}	3538	}
2207		3539
2208	sub main {	3540	sub main {
		3541	cf::init_globals; # initialise logging
		3542
		3543	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3544	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3545	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3546	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3547
		3548	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3549
2209	# we must not ever block the main coroutine	3550	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3551	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3552	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3553	(async {
		3554	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3555	EV::loop EV::LOOP_ONESHOT;
		3556	})->prio (Coro::PRIO_MAX);
2213	};	3557	};
2214		3558
2215	cfg_load;	3559	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3560
		3561	cf::sync_job {
		3562	cf::init_experience;
		3563	cf::init_anim;
		3564	cf::init_attackmess;
		3565	cf::init_dynamic;
		3566
		3567	cf::load_settings;
		3568	cf::load_materials;
		3569
		3570	reload_resources;
		3571	reload_config;
		3572	db_init;
		3573
		3574	cf::init_uuid;
		3575	cf::init_signals;
		3576	cf::init_skills;
		3577
		3578	cf::init_beforeplay;
		3579
		3580	atomic;
		3581
2217	load_extensions;	3582	load_extensions;
2218	Event::loop;	3583
		3584	utime time, time, $RUNTIMEFILE;
		3585
		3586	# no (long-running) fork's whatsoever before this point(!)
		3587	use POSIX ();
		3588	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3589
		3590	(pop @POST_INIT)->(0) while @POST_INIT;
		3591	};
		3592
		3593	cf::object::thawer::errors_are_fatal 0;
		3594
		3595	main_loop;
2219	}	3596	}
2220		3597
2221	#############################################################################	3598	#############################################################################
2222	# initialisation and cleanup	3599	# initialisation and cleanup
2223		3600
2224	# install some emergency cleanup handlers	3601	# install some emergency cleanup handlers
2225	BEGIN {	3602	BEGIN {
		3603	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3604	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3605	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3606	cf::cleanup "SIG$signal";
2232	},
2233	);	3607	};
		3608	}
		3609	}
		3610
		3611	sub write_runtime_sync {
		3612	my $t0 = AE::time;
		3613
		3614	# first touch the runtime file to show we are still running:
		3615	# the fsync below can take a very very long time.
		3616
		3617	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3618
		3619	my $guard = cf::lock_acquire "write_runtime";
		3620
		3621	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3622	or return;
		3623
		3624	my $value = $cf::RUNTIME + 90 + 10;
		3625	# 10 is the runtime save interval, for a monotonic clock
		3626	# 60 allows for the watchdog to kill the server.
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	# touch it again to show we are up-to-date
		3636	aio_utime $fh, undef, undef;
		3637
		3638	close $fh
		3639	or return;
		3640
		3641	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3642	and return;
		3643
		3644	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3645
2234	}	3646	1
		3647	}
		3648
		3649	our $uuid_lock;
		3650	our $uuid_skip;
		3651
		3652	sub write_uuid_sync($) {
		3653	$uuid_skip ||= $_[0];
		3654
		3655	return if $uuid_lock;
		3656	local $uuid_lock = 1;
		3657
		3658	my $uuid = "$LOCALDIR/uuid";
		3659
		3660	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3661	or return;
		3662
		3663	my $value = uuid_seq uuid_cur;
		3664
		3665	unless ($value) {
		3666	warn "cowardly refusing to write zero uuid value!\n";
		3667	return;
		3668	}
		3669
		3670	my $value = uuid_str $value + $uuid_skip;
		3671	$uuid_skip = 0;
		3672
		3673	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3674	and return;
		3675
		3676	# always fsync - this file is important
		3677	aio_fsync $fh
		3678	and return;
		3679
		3680	close $fh
		3681	or return;
		3682
		3683	aio_rename "$uuid~", $uuid
		3684	and return;
		3685
		3686	warn "uuid file written ($value).\n";
		3687
		3688	1
		3689
		3690	}
		3691
		3692	sub write_uuid($$) {
		3693	my ($skip, $sync) = @_;
		3694
		3695	$sync ? write_uuid_sync $skip
		3696	: async { write_uuid_sync $skip };
2235	}	3697	}
2236		3698
2237	sub emergency_save() {	3699	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3700	my $freeze_guard = cf::freeze_mainloop;
2239		3701
2240	warn "enter emergency perl save\n";	3702	warn "emergency_perl_save: enter\n";
2241		3703
2242	cf::sync_job {	3704	cf::sync_job {
		3705	# this is a trade-off: we want to be very quick here, so
		3706	# save all maps without fsync, and later call a global sync
		3707	# (which in turn might be very very slow)
		3708	local $USE_FSYNC = 0;
		3709
2243	# use a peculiar iteration method to avoid tripping on perl	3710	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3711	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3712	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3713	warn "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3714	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3715	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3716	$pl->valid or next;
		3717	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3718	$pl->save;
2251	}	3719	}
2252	warn "end emergency player save\n";	3720	warn "emergency_perl_save: end player save\n";
2253		3721
2254	warn "begin emergency map save\n";	3722	warn "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3723	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3724	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3725	$map->valid or next;
2258	$map->save;	3726	$map->save;
2259	}	3727	}
2260	warn "end emergency map save\n";	3728	warn "emergency_perl_save: end map save\n";
		3729
		3730	warn "emergency_perl_save: begin database checkpoint\n";
		3731	BDB::db_env_txn_checkpoint $DB_ENV;
		3732	warn "emergency_perl_save: end database checkpoint\n";
		3733
		3734	warn "emergency_perl_save: begin write uuid\n";
		3735	write_uuid_sync 1;
		3736	warn "emergency_perl_save: end write uuid\n";
2261	};	3737	};
2262		3738
		3739	warn "emergency_perl_save: starting sync()\n";
		3740	IO::AIO::aio_sync sub {
		3741	warn "emergency_perl_save: finished sync()\n";
		3742	};
		3743
2263	warn "leave emergency perl save\n";	3744	warn "emergency_perl_save: leave\n";
2264	}	3745	}
2265		3746
		3747	sub post_cleanup {
		3748	my ($make_core) = @_;
		3749
		3750	warn Carp::longmess "post_cleanup backtrace"
		3751	if $make_core;
		3752
		3753	my $fh = pidfile;
		3754	unlink $PIDFILE if <$fh> == $$;
		3755	}
		3756
		3757	# a safer delete_package, copied from Symbol
		3758	sub clear_package($) {
		3759	my $pkg = shift;
		3760
		3761	# expand to full symbol table name if needed
		3762	unless ($pkg =~ /^main::.*::$/) {
		3763	$pkg = "main$pkg" if $pkg =~ /^::/;
		3764	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3765	$pkg .= '::' unless $pkg =~ /::$/;
		3766	}
		3767
		3768	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3769	my $stem_symtab = *{$stem}{HASH};
		3770
		3771	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3772	or return;
		3773
		3774	# clear all symbols
		3775	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3776	for my $name (keys %$leaf_symtab) {
		3777	_gv_clear *{"$pkg$name"};
		3778	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3779	}
		3780	warn "cleared package $pkg\n";#d#
		3781	}
		3782
2266	sub reload() {	3783	sub do_reload_perl() {
2267	# can/must only be called in main	3784	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3785	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3786	warn "can only reload from main coroutine";
2270	return;	3787	return;
2271	}	3788	}
2272		3789
		3790	return if $RELOAD++;
		3791
		3792	my $t1 = AE::time;
		3793
		3794	while ($RELOAD) {
2273	warn "reloading...";	3795	warn "reloading...";
2274		3796
2275	warn "freezing server";	3797	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3798
		3799	cf::sync_job {
		3800	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3801	cf::emergency_save;
		3802	cf::write_runtime_sync; # external watchdog should not bark
2278		3803
2279	warn "sync database to disk";	3804	warn "syncing database to disk";
2280	cf::db_sync;	3805	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3806
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3807	# if anything goes wrong in here, we should simply crash as we already saved
2285		3808
2286	warn "cancel all watchers";	3809	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3810	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3811	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3812	}
2311		3813
		3814	warn "cancelling all extension coros";
		3815	$_->cancel for values %EXT_CORO;
		3816	%EXT_CORO = ();
		3817
		3818	warn "removing commands";
		3819	%COMMAND = ();
		3820
		3821	warn "removing ext/exti commands";
		3822	%EXTCMD = ();
		3823	%EXTICMD = ();
		3824
		3825	warn "unloading/nuking all extensions";
		3826	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3827	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3828
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3829	if (my $cb = $pkg->can ("unload")) {
		3830	eval {
2327	$cb->();	3831	$cb->($pkg);
		3832	1
		3833	} or warn "$pkg unloaded, but with errors: $@";
		3834	}
		3835
		3836	warn "... clearing $pkg";
		3837	clear_package $pkg;
2328	}	3838	}
2329		3839
2330	Symbol::delete_package $k;	3840	warn "unloading all perl modules loaded from $LIBDIR";
		3841	while (my ($k, $v) = each %INC) {
		3842	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3843
		3844	warn "... unloading $k";
		3845	delete $INC{$k};
		3846
		3847	$k =~ s/\.pm$//;
		3848	$k =~ s/\//::/g;
		3849
		3850	if (my $cb = $k->can ("unload_module")) {
		3851	$cb->();
		3852	}
		3853
		3854	clear_package $k;
2331	}	3855	}
2332		3856
2333	warn "get rid of safe::, as good as possible";	3857	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3858	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3859	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3860
2337	warn "unload cf.pm \"a bit\"";	3861	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3862	delete $INC{"cf.pm"};
		3863	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		3864
2340	# don't, removes xs symbols, too,	3865	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3866	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3867	#clear_package __PACKAGE__;
2343		3868
		3869	warn "unload completed, starting to reload now";
		3870
2344	warn "reloading cf.pm";	3871	warn "reloading cf.pm";
2345	require cf;	3872	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3873	cf::_connect_to_perl_1;
2347		3874
2348	warn "load config and database again";	3875	warn "loading config and database again";
2349	cf::cfg_load;	3876	cf::reload_config;
2350	cf::db_load;
2351		3877
2352	warn "load extensions";	3878	warn "loading extensions";
2353	cf::load_extensions;	3879	cf::load_extensions;
2354		3880
		3881	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	3882	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3883	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3884	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3885	reattach $_ for values %MAP;
		3886	warn "reattaching attachments to players";
		3887	reattach $_ for values %PLAYER;
		3888	}
		3889
		3890	warn "running post_init jobs";
		3891	(pop @POST_INIT)->(1) while @POST_INIT;
		3892
		3893	warn "leaving sync_job";
		3894
		3895	1
		3896	} or do {
		3897	warn $@;
		3898	cf::cleanup "error while reloading, exiting.";
		3899	};
		3900
		3901	warn "reloaded";
		3902	--$RELOAD;
		3903	}
		3904
		3905	$t1 = AE::time - $t1;
		3906	warn "reload completed in ${t1}s\n";
		3907	};
		3908
		3909	our $RELOAD_WATCHER; # used only during reload
		3910
		3911	sub reload_perl() {
		3912	# doing reload synchronously and two reloads happen back-to-back,
		3913	# coro crashes during coro_state_free->destroy here.
		3914
		3915	$RELOAD_WATCHER ||= cf::async {
		3916	Coro::AIO::aio_wait cache_extensions;
		3917
		3918	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3919	do_reload_perl;
		3920	undef $RELOAD_WATCHER;
		3921	};
2359	};	3922	};
2360		3923	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3924
2370	register_command "reload" => sub {	3925	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3926	my ($who, $arg) = @_;
2372		3927
2373	if ($who->flag (FLAG_WIZ)) {	3928	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3929	$who->message ("reloading server.");
		3930	async {
		3931	$Coro::current->{desc} = "perl_reload";
		3932	reload_perl;
		3933	};
2377	}	3934	}
2378	};	3935	};
2379		3936
2380	unshift @INC, $LIBDIR;	3937	unshift @INC, $LIBDIR;
2381		3938
2382	$TICK_WATCHER = Event->timer (	3939	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3940
		3941	our @WAIT_FOR_TICK;
		3942	our @WAIT_FOR_TICK_BEGIN;
		3943
		3944	sub wait_for_tick {
		3945	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3946
		3947	my $signal = new Coro::Signal;
		3948	push @WAIT_FOR_TICK, $signal;
		3949	$signal->wait;
		3950	}
		3951
		3952	sub wait_for_tick_begin {
		3953	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3954
		3955	my $signal = new Coro::Signal;
		3956	push @WAIT_FOR_TICK_BEGIN, $signal;
		3957	$signal->wait;
		3958	}
		3959
		3960	sub tick {
		3961	if ($Coro::current != $Coro::main) {
		3962	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3963	unless ++$bug_warning > 10;
		3964	return;
		3965	}
		3966
2390	cf::server_tick; # one server iteration	3967	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3968
2394	$WAIT_FOR_TICK->broadcast;	3969	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2396		3970
2397	# if we are delayed by four ticks or more, skip them all	3971	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3972	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2399		3973	Coro::async_pool {
2400	$TICK_WATCHER->at ($NEXT_TICK);	3974	$Coro::current->{desc} = "runtime saver";
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3975	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3976	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3977	};
2424	},	3978	}
2425	);	3979
		3980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3981	$sig->send;
		3982	}
		3983	while (my $sig = shift @WAIT_FOR_TICK) {
		3984	$sig->send;
		3985	}
		3986
		3987	$LOAD = ($NOW - $TICK_START) / $TICK;
		3988	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3989
		3990	if (0) {
		3991	if ($NEXT_TICK) {
		3992	my $jitter = $TICK_START - $NEXT_TICK;
		3993	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3994	warn "jitter $JITTER\n";#d#
		3995	}
		3996	}
		3997	}
		3998
		3999	{
		4000	# configure BDB
		4001
		4002	BDB::min_parallel 16;
		4003	BDB::max_poll_reqs $TICK * 0.1;
		4004	$AnyEvent::BDB::WATCHER->priority (1);
		4005
		4006	unless ($DB_ENV) {
		4007	$DB_ENV = BDB::db_env_create;
		4008	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4009	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4010	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4011	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4012	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4013
		4014	cf::sync_job {
		4015	eval {
		4016	BDB::db_env_open
		4017	$DB_ENV,
		4018	$BDBDIR,
		4019	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4020	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4021	0666;
		4022
		4023	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4024	};
		4025
		4026	cf::cleanup "db_env_open(db): $@" if $@;
		4027	};
		4028	}
		4029
		4030	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4031	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4032	};
		4033	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4034	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4035	};
		4036	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4037	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4038	};
		4039	}
		4040
		4041	{
		4042	# configure IO::AIO
		4043
		4044	IO::AIO::min_parallel 8;
		4045	IO::AIO::max_poll_time $TICK * 0.1;
		4046	undef $AnyEvent::AIO::WATCHER;
		4047	}
		4048
		4049	my $_log_backtrace;
		4050
		4051	sub _log_backtrace {
		4052	my ($msg, @addr) = @_;
		4053
		4054	$msg =~ s/\n//;
		4055
		4056	# limit the # of concurrent backtraces
		4057	if ($_log_backtrace < 2) {
		4058	++$_log_backtrace;
		4059	my $perl_bt = Carp::longmess $msg;
		4060	async {
		4061	$Coro::current->{desc} = "abt $msg";
		4062
		4063	my @bt = fork_call {
		4064	@addr = map { sprintf "%x", $_ } @addr;
		4065	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4066	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4067	or die "addr2line: $!";
		4068
		4069	my @funcs;
		4070	my @res = <$fh>;
		4071	chomp for @res;
		4072	while (@res) {
		4073	my ($func, $line) = splice @res, 0, 2, ();
		4074	push @funcs, "[$func] $line";
		4075	}
		4076
		4077	@funcs
		4078	};
		4079
		4080	LOG llevInfo, "[ABT] $perl_bt\n";
		4081	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4082	LOG llevInfo, "[ABT] $_\n" for @bt;
		4083	--$_log_backtrace;
		4084	};
		4085	} else {
		4086	LOG llevInfo, "[ABT] $msg\n";
		4087	LOG llevInfo, "[ABT] [suppressed]\n";
		4088	}
		4089	}
		4090
		4091	# load additional modules
		4092	require "cf/$_.pm" for @EXTRA_MODULES;
		4093	cf::_connect_to_perl_2;
2426		4094
2427	END { cf::emergency_save }	4095	END { cf::emergency_save }
2428		4096
2429	1	4097	1
2430		4098

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