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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.155 by root, Tue Jan 9 21:32:42 2007 UTC vs.
Revision 1.487 by root, Fri Oct 16 01:56:41 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.3 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		55	use BDB ();
20	use Data::Dumper;	56	use Data::Dumper;
21	use Digest::MD5;	57	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 = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	115	our $NEXT_TICK;
46	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
47		124
48	our %CFG;	125	our %CFG;
49		126
50	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
52		130
53	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	133	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		134
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	135	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
61		147
62	binmode STDOUT;	148	binmode STDOUT;
63	binmode STDERR;	149	binmode STDERR;
64		150
65	# read virtual server time, if available	151	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
70	}	156	}
71		157
72	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		159
78	# a special map that is always available	160	mkdir $_
79	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
80	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
81		177
82	#############################################################################	178	#############################################################################
83		179
84	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
85		181
…		…
92	=item $cf::RUNTIME	188	=item $cf::RUNTIME
93		189
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	191	every server tick.
96		192
97	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		196
99	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
101		201
102	=item $cf::NOW	202	=item $cf::NOW
103		203
104	The time of the last (current) server tick.	204	The time of the last (current) server tick.
105		205
106	=item $cf::TICK	206	=item $cf::TICK
107		207
108	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
109		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
110	=item %cf::CFG	220	=item %cf::CFG
111		221
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	223	from wherever your confdir points to.
114		224
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		226
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
121		242
122	=back	243	=back
123		244
124	=cut	245	=cut
125		246
126	BEGIN {	247	$Coro::State::WARNHOOK = sub {
127	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	248	my $msg = join "", @_;
129	utf8::encode $msg;
130		249
131	$msg .= "\n"	250	$msg .= "\n"
132	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
133		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
134	LOG llevError, $msg;	255	LOG llevError, $msg;
135	};	256	};
136	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
137		271
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		279
145	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	281	# within the Safe compartment.
147	for my $pkg (qw(	282	for my $pkg (qw(
148	cf::global cf::attachable	283	cf::global cf::attachable
149	cf::object cf::object::player	284	cf::object cf::object::player
150	cf::client cf::player	285	cf::client cf::player
151	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
152	cf::map cf::party cf::region	288	cf::party cf::region
153	)) {	289	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	291	}
157		292
158	$Event::DIED = sub {	293	$EV::DIED = sub {
159	warn "error in event callback: @_";	294	warn "error in event callback: @_";
160	};	295	};
161		296
162	my %ext_pkg;	297	#############################################################################
163	my @exts;
164	my @hook;
165		298
166	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
167		300
168	=over 4	301	=over 4
169		302
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	322	$d
190	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
191	}	324	}
192		325
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
196		327
197	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
198		329
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
207		331
208	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
209		333
210	=cut	334	=cut
211		335
212	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
214	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
215	}	353	}
216		354
217	=item cf::lock_wait $string	355	=item cf::lock_wait $string
218		356
219	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
220		358
221	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
222		360
223	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
226	returned.	364	returned.
227		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
228	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
230		371
231	=cut	372	=item $locked = cf::lock_active $string
232		373
233	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
234		379
235	sub lock_wait($) {	380	sub lock_wait($) {
236	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	382	}
244		383
245	sub lock_acquire($) {	384	sub lock_acquire($) {
246	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
247		387
248	# wait, to be sure we are not locked	388	sub lock_active($) {
249	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	390	}
258		391
259	sub freeze_mainloop {	392	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
261		394
262	my $guard = Coro::guard { $TICK_WATCHER->start };	395	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	396	}
264	$guard	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
		456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
265	}	471	}
266		472
267	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
268		474
269	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		480
275	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
276		482
277	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
278		484
279	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
282		489
283	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
286	fast or be very important.	493	fast or be very important.
…		…
289		496
290	sub sync_job(&) {	497	sub sync_job(&) {
291	my ($job) = @_;	498	my ($job) = @_;
292		499
293	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
294	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
296		505
297	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	507
299	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
300		509
301	my $busy = 1;	510	my $busy = 1;
302	my @res;	511	my @res;
303		512
304	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	515	@res = eval { $job->() };
306	warn $@ if $@;	516	warn $@ if $@;
307	undef $busy;	517	undef $busy;
308	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
309		519
310	while ($busy) {	520	while ($busy) {
311	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
312	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
313		531
314	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
315	} else {	533	} else {
316	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
317		535
…		…
319	}	537	}
320	}	538	}
321		539
322	=item $coro = cf::async_ext { BLOCK }	540	=item $coro = cf::async_ext { BLOCK }
323		541
324	Like async, but this coro is automcatially being canceled when the	542	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	543	extension calling this is being unloaded.
326		544
327	=cut	545	=cut
328		546
329	sub async_ext(&) {	547	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
338		556
339	$coro	557	$coro
340	}	558	}
341		559
342	sub write_runtime {	560	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		561
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
346	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
347		566
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	567	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		568
352	aio_fsync $fh	569	sub fork_call(&@) {
353	and return;	570	my ($cb, @args) = @_;
354		571
355	close $fh	572	# we seemingly have to make a local copy of the whole thing,
356	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
357		575
358	aio_rename "$runtime~", $runtime	576	my @res = Coro::Util::fork_eval {
359	and return;	577	reset_signals;
		578	&$cb
		579	}, @args;
360		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
361	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	747	}
363		748
364	=back	749	=back
365		750
366	=cut	751	=cut
367		752
368	#############################################################################	753	#############################################################################
369		754
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489
490	#############################################################################
491
492	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
493		756
494	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
495	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
497		760
498	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	763	Deliantra).
501		764
502	=over 4	765	=over 4
503		766
504	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
505		768
…		…
549	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
550		813
551	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
552	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
553		816
554	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
555	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
556		819
557	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
558		821
559	=over 4	822	=over 4
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	883	our @CB_MAP = ();
621		884
622	my %attachment;	885	my %attachment;
623		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
624	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
626		895
627	use sort 'stable';	896	use sort 'stable';
628		897
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
663		932
664	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		937
669	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	939	my $pkg = shift @arg;
671		940
672	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
702	}	971	}
703		972
704	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
705	} else {	974	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	976	}
708		977
709	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
710	}	979	}
711		980
…		…
713	if (ref $_[0]) {	982	if (ref $_[0]) {
714	_object_attach @_;	983	_object_attach @_;
715	} else {	984	} else {
716	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
717	}	986	}
		987	_recalc_want;
718	};	988	};
719		989
720	# all those should be optimised	990	# all those should be optimised
721	sub cf::attachable::detach {	991	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
726	reattach ($obj);	996	reattach ($obj);
727	} else {	997	} else {
728	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
729	}	999	}
		1000	_recalc_want;
730	};	1001	};
731		1002
732	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
734		1005
…		…
749	";	1020	";
750	die if $@;	1021	die if $@;
751	}	1022	}
752		1023
753	our $override;	1024	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		1026
756	sub override {	1027	sub override {
757	$override = 1;	1028	$override = 1;
758	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
759	}	1030	}
760		1031
761	sub do_invoke {	1032	sub do_invoke {
762	my $event = shift;	1033	my $event = shift;
763	my $callbacks = shift;	1034	my $callbacks = shift;
764		1035
765	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
766		1037
767	local $override;	1038	local $override;
768		1039
769	for (@$callbacks) {	1040	for (@$callbacks) {
770	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
779	}	1050	}
780		1051
781	0	1052	0
782	}	1053	}
783		1054
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1056
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1058
788	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
789		1060
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1064
794	=back	1065	=back
795		1066
796	=cut	1067	=cut
797		1068
798	#############################################################################	1069	#############################################################################
799	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
800		1113
801	sub reattach {	1114	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1120
805	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
806		1122
807	@$registry = ();	1123	@$registry = ();
808		1124
…		…
823	cf::attachable->attach (	1139	cf::attachable->attach (
824	prio => -1000000,	1140	prio => -1000000,
825	on_instantiate => sub {	1141	on_instantiate => sub {
826	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
827		1143
828	$data = from_json $data;	1144	$data = decode_json $data;
829		1145
830	for (@$data) {	1146	for (@$data) {
831	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
832		1148
833	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1165	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
851		1167
852	sync_job {	1168	sync_job {
853	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
856		1173
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
860	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
861	close $fh;	1181	aio_close $fh;
862		1182
863	if (@$objs) {	1183	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
868	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
869	close $fh;	1192	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
871	}	1194	}
872	} else {	1195	} else {
873	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
874	}	1197	}
875		1198
876	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
877	} else {	1203	} else {
878	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
879	}	1205	}
880	} else {	1206	} else {
881	aio_unlink $filename;	1207	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
883	}	1209	}
884	}	1210	};
885	}	1211	}
886		1212
887	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
889		1215
…		…
901	or return;	1227	or return;
902		1228
903	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
905	or return;	1231	or return;
		1232
906	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
907	}	1235	}
908		1236
		1237	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
911	return ($data, $av);	1241	($data, $av)
912	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
913		1249
914	#############################################################################	1250	#############################################################################
915	# command handling &c	1251	# command handling &c
916		1252
917	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1267	}
932		1268
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1270
935	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
936		1276
937	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
938	called.	1278	called.
939		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
940	=cut	1291	=cut
941		1292
942	sub register_extcmd {	1293	sub register_extcmd {
943	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
944		1295
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1296	$EXTCMD{$name} = $cb;
949	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
950		1306
951	cf::player->attach (	1307	cf::player->attach (
952	on_command => sub {	1308	on_command => sub {
953	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
954		1310
…		…
962	cf::override;	1318	cf::override;
963	},	1319	},
964	on_extcmd => sub {	1320	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
966		1322
967	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1324
969	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
975	} else {	1340	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1342	}
978		1343
979	cf::override;	1344	cf::override;
980	},	1345	},
981	);	1346	);
982		1347
983	sub register {	1348	# "readahead" all extensions
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	1349	sub cache_extensions {
990	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
991		1351
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
993	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
994	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}	1355	}
1042	}	1356	};
1043		1357
1044	# remove extcmds	1358	$grp
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	1359	}
1058		1360
1059	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
1060	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1366	next unless -r $path;
1062	eval {	1367
1063	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
1064	1	1424	}
1065	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
1066	}	1430	};
1067	}	1431	}
1068		1432
1069	#############################################################################	1433	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1434
1072	*cf::mapsupport::on_clean = sub {	1435	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1436
1085	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
1086		1438
1087	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
1088		1440
1089	=cut	1441	=cut
1090		1442
1091	package cf::player;	1443	package cf::player;
1092		1444
…		…
1094		1446
1095	=head3 cf::player	1447	=head3 cf::player
1096		1448
1097	=over 4	1449	=over 4
1098		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
1099	=item cf::player::find $login	1465	=item cf::player::find $login
1100		1466
1101	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
1102		1468
1103	=cut	1469	=cut
1104		1470
1105	sub playerdir($) {	1471	sub playerdir($) {
1106	cf::localdir	1472	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1474	}
1112		1475
1113	sub path($) {	1476	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1478
1116	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
1117	}	1480	}
1118		1481
1119	sub find_active($) {	1482	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
1124		1487
1125	sub exists($) {	1488	sub exists($) {
1126	my ($login) = @_;	1489	my ($login) = @_;
1127		1490
1128	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1492	or !aio_stat path $login
1130	}	1493	}
1131		1494
1132	sub find($) {	1495	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1497	my $login = $_[0];
1135		1498
1136	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
1137		1500
1138	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1142	}	1518	}
1143	}	1519	}
1144	}	1520	}
1145		1521
…		…
1154	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1155		1531
1156	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1158		1534
		1535	cf::get_slot 0.01;
		1536
1159	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1160	Coro::cede;	1538	cf::cede_to_tick;
1161	}	1539	}
1162		1540
1163	sub new($) {	1541	sub new($) {
1164	my ($login) = @_;	1542	my ($login) = @_;
1165		1543
…		…
1171	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1172		1550
1173	$self	1551	$self
1174	}	1552	}
1175		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1176	=item $pl->quit_character	1564	=item $pl->quit_character
1177		1565
1178	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1180		1568
1181	=cut	1569	=cut
1182		1570
1183	sub quit_character {	1571	sub quit_character {
1184	my ($pl) = @_;	1572	my ($pl) = @_;
1185		1573
		1574	my $name = $pl->ob->name;
		1575
1186	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1188		1578
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1190	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1192	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1193		1585
1194	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1199	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1200	}	1612	}
1201		1613
1202	=item cf::player::list_logins	1614	=item cf::player::list_logins
1203		1615
1204	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1206		1618
1207	=cut	1619	=cut
1208		1620
1209	sub list_logins {	1621	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1623	or return [];
1212		1624
1213	my @logins;	1625	my @logins;
1214		1626
1215	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1219		1637
1220	utf8::decode $login;	1638	utf8::decode $login;
1221	push @logins, $login;	1639	push @logins, $login;
1222	}	1640	}
1223		1641
1224	\@logins	1642	\@logins
1225	}	1643	}
1226		1644
1227	=item $player->maps	1645	=item $player->maps
1228		1646
1229	Returns an arrayref of cf::path's of all maps that are private for this	1647	Returns an arrayref of map paths that are private for this
1230	player. May block.	1648	player. May block.
1231		1649
1232	=cut	1650	=cut
1233		1651
1234	sub maps($) {	1652	sub maps($) {
1235	my ($pl) = @_;	1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1656
1237	my $files = aio_readdir playerdir $pl	1657	my $files = aio_readdir playerdir $pl
1238	or return;	1658	or return;
1239		1659
1240	my @paths;	1660	my @paths;
1241		1661
1242	for (@$files) {	1662	for (@$files) {
1243	utf8::decode $_;	1663	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1664	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1665	next unless /^$PATH_SEP/o;
1246		1666
1247	s/$PATH_SEP/\//g;	1667	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1668	}
1250		1669
1251	\@paths	1670	\@paths
1252	}	1671	}
1253		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1255		1678
1256	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1257		1680
1258	=cut	1681	=cut
1259		1682
1260	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1262		1685
1263	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1687	}
1267		1688
1268	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1269		1729
1270	=back	1730	=back
1271
1272		1731
1273	=head3 cf::map	1732	=head3 cf::map
1274		1733
1275	=over 4	1734	=over 4
1276		1735
…		…
1279	package cf::map;	1738	package cf::map;
1280		1739
1281	use Fcntl;	1740	use Fcntl;
1282	use Coro::AIO;	1741	use Coro::AIO;
1283		1742
		1743	use overload
		1744	'""' => \&as_string,
		1745	fallback => 1;
		1746
1284	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1286		1749
1287	sub generate_random_map {	1750	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1754
1290	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1756	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1760	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1761	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1762	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1763	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1764	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1765	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1766	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1767	(cf::region::find $rmp->{region}), $rmp->{custom}
		1768	)
1304	}	1769	}
1305		1770
1306	# and all this just because we cannot iterate over	1771	=item cf::map->register ($regex, $prio)
1307	# all maps in C++...
1308	sub change_all_map_light {
1309	my ($change) = @_;
1310		1772
1311	$_->change_map_light ($change)	1773	Register a handler for the map path matching the given regex at the
1312	for grep $_->outdoor, values %cf::MAP;	1774	givne priority (higher is better, built-in handlers have priority 0, the
1313	}	1775	default).
1314		1776
1315	sub try_load_header($) {	1777	=cut
		1778
		1779	sub register {
		1780	my (undef, $regex, $prio) = @_;
		1781	my $pkg = caller;
		1782
		1783	no strict;
		1784	push @{"$pkg\::ISA"}, __PACKAGE__;
		1785
		1786	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1787	}
		1788
		1789	# also paths starting with '/'
		1790	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1791
		1792	sub thawer_merge {
		1793	my ($self, $merge) = @_;
		1794
		1795	# we have to keep some variables in memory intact
		1796	local $self->{path};
		1797	local $self->{load_path};
		1798
		1799	$self->SUPER::thawer_merge ($merge);
		1800	}
		1801
		1802	sub normalise {
1316	my ($path) = @_;	1803	my ($path, $base) = @_;
		1804
		1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
		1808
		1809	# map plan:
		1810	#
		1811	# /! non-realised random map exit (special hack!)
		1812	# {... are special paths that are not being touched
		1813	# ?xxx/... are special absolute paths
		1814	# ?random/... random maps
		1815	# /... normal maps
		1816	# ~user/... per-player map of a specific user
		1817
		1818	$path =~ s/$PATH_SEP/\//go;
		1819
		1820	# treat it as relative path if it starts with
		1821	# something that looks reasonable
		1822	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1823	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1824
		1825	$base =~ s{[^/]+/?$}{};
		1826	$path = "$base/$path";
		1827	}
		1828
		1829	for ($path) {
		1830	redo if s{//}{/};
		1831	redo if s{/\.?/}{/};
		1832	redo if s{/[^/]+/\.\./}{/};
		1833	}
		1834
		1835	$path
		1836	}
		1837
		1838	sub new_from_path {
		1839	my (undef, $path, $base) = @_;
		1840
		1841	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1842
		1843	$path = normalise $path, $base;
		1844
		1845	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1846	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1847	my $self = bless cf::map::new, $pkg;
		1848	$self->{path} = $path; $self->path ($path);
		1849	$self->init; # pass $1 etc.
		1850	return $self;
		1851	}
		1852	}
		1853
		1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1855	()
		1856	}
		1857
		1858	sub init {
		1859	my ($self) = @_;
		1860
		1861	$self
		1862	}
		1863
		1864	sub as_string {
		1865	my ($self) = @_;
		1866
		1867	"$self->{path}"
		1868	}
		1869
		1870	# the displayed name, this is a one way mapping
		1871	sub visible_name {
		1872	&as_string
		1873	}
		1874
		1875	# the original (read-only) location
		1876	sub load_path {
		1877	my ($self) = @_;
		1878
		1879	"$MAPDIR/$self->{path}.map"
		1880	}
		1881
		1882	# the temporary/swap location
		1883	sub save_path {
		1884	my ($self) = @_;
		1885
		1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1887	"$TMPDIR/$path.map"
		1888	}
		1889
		1890	# the unique path, undef == no special unique path
		1891	sub uniq_path {
		1892	my ($self) = @_;
		1893
		1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1895	"$UNIQUEDIR/$path"
		1896	}
		1897
		1898	sub decay_objects {
		1899	my ($self) = @_;
		1900
		1901	return if $self->{deny_reset};
		1902
		1903	$self->do_decay_objects;
		1904	}
		1905
		1906	sub unlink_save {
		1907	my ($self) = @_;
		1908
		1909	utf8::encode (my $save = $self->save_path);
		1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1912	}
		1913
		1914	sub load_header_from($) {
		1915	my ($self, $path) = @_;
1317		1916
1318	utf8::encode $path;	1917	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1320	or return;	1919	or return;
1321		1920
1322	my $map = cf::map::new	1921	$self->_load_header ($f)
1323	or return;	1922	or return;
1324		1923
1325	# for better error messages only, will be overwritten	1924	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1925	$f->resolve_delayed_derefs;
1327		1926
1328	$map->load_header ($path)	1927	$self->{load_path} = $path;
		1928
		1929	1
		1930	}
		1931
		1932	sub load_header_orig {
		1933	my ($self) = @_;
		1934
		1935	$self->load_header_from ($self->load_path)
		1936	}
		1937
		1938	sub load_header_temp {
		1939	my ($self) = @_;
		1940
		1941	$self->load_header_from ($self->save_path)
		1942	}
		1943
		1944	sub prepare_temp {
		1945	my ($self) = @_;
		1946
		1947	$self->last_access ((delete $self->{last_access})
		1948	|| $cf::RUNTIME); #d#
		1949	# safety
		1950	$self->{instantiate_time} = $cf::RUNTIME
		1951	if $self->{instantiate_time} > $cf::RUNTIME;
		1952	}
		1953
		1954	sub prepare_orig {
		1955	my ($self) = @_;
		1956
		1957	$self->{load_original} = 1;
		1958	$self->{instantiate_time} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960	$self->instantiate;
		1961	}
		1962
		1963	sub load_header {
		1964	my ($self) = @_;
		1965
		1966	if ($self->load_header_temp) {
		1967	$self->prepare_temp;
		1968	} else {
		1969	$self->load_header_orig
1329	or return;	1970	or return;
		1971	$self->prepare_orig;
		1972	}
1330		1973
1331	$map->{load_path} = $path;	1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
1332		1976
1333	$map	1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
		1980	1
1334	}	1981	}
1335		1982
1336	sub find;	1983	sub find;
1337	sub find {	1984	sub find {
1338	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1339		1986
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1988
1345	cf::lock_wait "map_find:$key";	1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1346
1347	$cf::MAP{$key} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1349		1991
1350	# do it the slow way	1992	$cf::MAP{$path} || do {
1351	my $map = try_load_header $path->save_path;	1993	my $map = new_from_path cf::map $path
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1994	or return;
1369		1995
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1382		1997
1383	Coro::cede;	1998	$map->load_header
		1999	or return;
1384		2000
1385	if ($map->should_reset) {	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2002	# doing this can freeze the server in a sync job, obviously
		2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1386	$map->reset;	2006	$map->reset;
1387	undef $guard;
1388	$map = find $path	2007	return find $path;
1389	or return;
1390	}	2008	}
1391		2009
1392	$cf::MAP{$key} = $map	2010	$cf::MAP{$path} = $map
1393	}	2011	}
1394	}	2012	}
		2013
		2014	sub pre_load { }
		2015	sub post_load { }
1395		2016
1396	sub load {	2017	sub load {
1397	my ($self) = @_;	2018	my ($self) = @_;
1398		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1399	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2025	my $guard = cf::lock_acquire "map_data:$path";
1401		2026
		2027	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2029
1404	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1405		2031
1406	$self->alloc;	2032	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2033
		2034	$self->pre_load;
		2035	cf::cede_to_tick;
		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1408	or return;	2040	or return;
1409		2041
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1411	if delete $self->{load_original};	2043	if delete $self->{load_original};
1412		2044
1413	if (my $uniq = $path->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2046	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2049	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1418	}	2053	}
1419	}	2054	}
1420		2055
1421	Coro::cede;	2056	$f->resolve_delayed_derefs;
1422		2057
		2058	cf::cede_to_tick;
1423	# now do the right thing for maps	2059	# now do the right thing for maps
1424	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2062	unless $self->difficulty;
		2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1436	$self->activate;	2070	$self->activate;
1437	}	2071	}
1438		2072
1439	Coro::cede;	2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
1440		2075
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
		2077	}
		2078
		2079	$self->post_load;
		2080	}
		2081
		2082	sub customise_for {
		2083	my ($self, $ob) = @_;
		2084
		2085	return find "~" . $ob->name . "/" . $self->{path}
		2086	if $self->per_player;
		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
		2091	$self
		2092	}
		2093
		2094	# find and load all maps in the 3x3 area around a map
		2095	sub load_neighbours {
		2096	my ($map) = @_;
		2097
		2098	my @neigh; # diagonal neighbours
		2099
		2100	for (0 .. 3) {
		2101	my $neigh = $map->tile_path ($_)
		2102	or next;
		2103	$neigh = find $neigh, $map
		2104	or next;
		2105	$neigh->load;
		2106
		2107	push @neigh,
		2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2110	}
		2111
		2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
		2114	my $neigh = find $path, $origin
		2115	or next;
		2116	$neigh->load;
		2117	}
1442	}	2118	}
1443		2119
1444	sub find_sync {	2120	sub find_sync {
1445	my ($path, $origin) = @_;	2121	my ($path, $origin) = @_;
1446		2122
1447	cf::sync_job { cf::map::find $path, $origin }	2123	cf::sync_job { find $path, $origin }
1448	}	2124	}
1449		2125
1450	sub do_load_sync {	2126	sub do_load_sync {
1451	my ($map) = @_;	2127	my ($map) = @_;
1452		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1453	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
		2133	}
		2134
		2135	our %MAP_PREFETCH;
		2136	our $MAP_PREFETCHER = undef;
		2137
		2138	sub find_async {
		2139	my ($path, $origin, $load) = @_;
		2140
		2141	$path = normalise $path, $origin && $origin->{path};
		2142
		2143	if (my $map = $cf::MAP{$path}) {
		2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
		2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
		2152	while (%MAP_PREFETCH) {
		2153	while (my ($k, $v) = each %MAP_PREFETCH) {
		2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
		2158	delete $MAP_PREFETCH{$k};
		2159	}
		2160	}
		2161	undef $MAP_PREFETCHER;
		2162	};
		2163	$MAP_PREFETCHER->prio (6);
		2164
		2165	()
1454	}	2166	}
1455		2167
1456	sub save {	2168	sub save {
1457	my ($self) = @_;	2169	my ($self) = @_;
1458		2170
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2172
1461	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1462		2174
1463	return unless $self->dirty;	2175	return unless $self->dirty;
1464		2176
1465	my $save = $self->{path}->save_path; utf8::encode $save;	2177	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		2179
1468	$self->{load_path} = $save;	2180	$self->{load_path} = $save;
1469		2181
1470	return if $self->{deny_save};	2182	return if $self->{deny_save};
1471		2183
1472	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1473		2185
1474	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1475	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1476	};	2189	};
1477		2190
		2191	cf::get_slot 0.02;
		2192
1478	if ($uniq) {	2193	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	2196	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2197	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	2198	}
1484	}	2199	}
1485		2200
1486	sub swap_out {	2201	sub swap_out {
1487	my ($self) = @_;	2202	my ($self) = @_;
1488		2203
1489	# save first because save cedes	2204	# save first because save cedes
1490	$self->save;	2205	$self->save;
1491		2206
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2208
1494	return if $self->players;	2209	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1496	return if $self->{deny_save};	2211	return if $self->{deny_save};
1497		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1498	$self->clear;	2217	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2218	}
1501		2219
1502	sub reset_at {	2220	sub reset_at {
1503	my ($self) = @_;	2221	my ($self) = @_;
1504		2222
1505	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1508		2225
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2228
…		…
1516	my ($self) = @_;	2233	my ($self) = @_;
1517		2234
1518	$self->reset_at <= $cf::RUNTIME	2235	$self->reset_at <= $cf::RUNTIME
1519	}	2236	}
1520		2237
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2238	sub reset {
1543	my ($self) = @_;	2239	my ($self) = @_;
1544		2240
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2242
1547	return if $self->players;	2243	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2244
1550	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1551		2256
1552	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1553		2258
		2259	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2260	$_->clear_links_to ($self) for values %cf::MAP;
		2261	$self->clear;
1555		2262
1556	$self->unlink_save;	2263	$self->unlink_save;
1557	$self->destroy;	2264	$self->destroy;
1558	}	2265	}
1559		2266
1560	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1561		2268
1562	sub nuke {	2269	sub nuke {
1563	my ($self) = @_;	2270	my ($self) = @_;
1564		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
		2275	delete $cf::MAP{$self->path};
		2276
		2277	$self->unlink_save;
		2278
		2279	bless $self, "cf::map";
		2280	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2284
		2285	$cf::MAP{$self->path} = $self;
		2286	}
		2287
1568	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
1569	}	2289	}
1570		2290
1571	sub customise_for {	2291	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2292
1574	if ($map->per_player) {	2293	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
1576	}	2299	[
1577		2300	map {
1578	$map	2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
1579	}	2307	}
1580		2308
1581	package cf;	2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
		2325	}
		2326
		2327	=item cf::map::unique_maps
		2328
		2329	Returns an arrayref of paths of all shared maps that have
		2330	instantiated unique items. May block.
		2331
		2332	=cut
		2333
		2334	sub unique_maps() {
		2335	[
		2336	map {
		2337	utf8::decode $_;
		2338	s/\.map$//; # TODO future compatibility hack
		2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2340	? ()
		2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
		2343	]
		2344	}
1582		2345
1583	=back	2346	=back
1584		2347
1585	=head3 cf::object	2348	=head3 cf::object
1586		2349
…		…
1590		2353
1591	=over 4	2354	=over 4
1592		2355
1593	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1594		2357
1595	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1596		2360
1597	=cut	2361	=cut
1598		2362
1599	sub inv_recursive_;	2363	sub inv_recursive_;
1600	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1603		2367
1604	sub inv_recursive {	2368	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1606	}	2370	}
1607		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1608	package cf;	2400	package cf;
1609		2401
1610	=back	2402	=back
1611		2403
1612	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1618	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1619	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1620	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1621		2413
1622	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1623		2429
1624	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1625	# with dialog boxes.	2431	# with dialog boxes.
1626	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1627	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1629		2435
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2437
1632	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1634	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1637	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1638	}	2463	}
1639		2464
1640	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1641		2466
1642	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1655		2480
1656	=item $player_object->enter_link	2481	=item $player_object->enter_link
1657		2482
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2484
1660	The player should be reaosnably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1661	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
		2489
		2490	Will never block.
1662		2491
1663	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1664		2493
1665	Moves the player out of the specila link map onto the given map. If the	2494	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2495	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2496	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2497	fails, to the emergency map position.
1669		2498
1670	Might block.	2499	Might block.
1671		2500
1672	=cut	2501	=cut
		2502
		2503	sub link_map {
		2504	unless ($LINK_MAP) {
		2505	$LINK_MAP = cf::map::find "{link}"
		2506	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2507	$LINK_MAP->load;
		2508	}
		2509
		2510	$LINK_MAP
		2511	}
1673		2512
1674	sub cf::object::player::enter_link {	2513	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2514	my ($self) = @_;
1676		2515
1677	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1678		2517
1679	return if $self->map == $LINK_MAP;	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2519
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1683		2522
1684	$self->enter_map ($LINK_MAP, 20, 20);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2524	}
1686		2525
1687	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1689		2530
1690	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1691		2532
1692	unless ($map) {	2533	unless ($map) {
1693	# restore original map position	2534	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1710		2551
1711	$map->load;	2552	$map->load;
		2553	$map->load_neighbours;
1712		2554
1713	return unless $self->contr->active;	2555	return unless $self->contr->active;
		2556
		2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2558	$self->enter_map ($map, $x, $y);
		2559
		2560	# only activate afterwards, to support waiting in hooks
1714	$self->activate_recursive;	2561	$self->activate_recursive;
1715	$self->enter_map ($map, $x, $y);
1716	}	2562	}
1717		2563
1718	cf::player->attach (	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1719	on_logout => sub {
1720	my ($pl) = @_;
1721		2565
1722	# abort map switching before logout	2566	Moves the player to the given map-path and coordinates by first freezing
1723	if ($pl->ob->{_link_pos}) {	2567	her, loading and preparing them map, calling the provided $check callback
1724	cf::sync_job {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1725	$pl->ob->leave_link	2569	the new (success) or old (failed) map position. In either case, $done will
1726	};	2570	be called at the end of this process.
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2571
1732	# try to abort aborted map switching on player login :)	2572	Note that $check will be called with a potentially non-loaded map, so if
1733	# should happen only on crashes	2573	it needs a loaded map it has to call C<< ->load >>.
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749		2574
1750	=item $player_object->goto ($path, $x, $y)
1751
1752	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1753		2578
1754	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2581
1757	$path = new cf::path $path;	2582	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2584
1760	$self->enter_link;	2585	$self->enter_link;
1761		2586
1762	(async {	2587	(async {
1763	my $map = cf::map::find $path->as_string;	2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
		2609	my $map = eval {
		2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
1765		2614	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2615	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
1770		2618
		2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
		2625	}
		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1772	})->prio (1);	2633	})->prio (1);
1773	}	2634	}
1774		2635
1775	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1776		2637
…		…
1778		2639
1779	sub parse_random_map_params {	2640	sub parse_random_map_params {
1780	my ($spec) = @_;	2641	my ($spec) = @_;
1781		2642
1782	my $rmp = { # defaults	2643	my $rmp = { # defaults
1783	xsize => 10,	2644	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2645	ysize => (cf::rndm 15, 40),
		2646	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2647	#layout => string,
1785	};	2648	};
1786		2649
1787	for (split /\n/, $spec) {	2650	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2651	my ($k, $v) = split /\s+/, $_, 2;
1789		2652
…		…
1801	# that depends on the exit object	2664	# that depends on the exit object
1802		2665
1803	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
1804		2667
1805	if ($exit->map) {	2668	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2669	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1810	}	2675	}
1811		2676
1812	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1813		2678
1814	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1815	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
		2681	my $meta = "$RANDOMDIR/$md5.meta";
1816		2682
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
		2685	undef $fh;
		2686	aio_rename "$meta~", $meta;
1819		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1820	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1822	}	2694	}
1823	}	2695	}
1824		2696
1825	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
…		…
1828	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1829		2701
1830	$self->enter_link;	2702	$self->enter_link;
1831		2703
1832	(async {	2704	(async {
1833	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1834	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
1835	prepare_random_map $exit	2714	prepare_random_map $exit
1836	if $exit->slaying eq "/!";	2715	if $exit->slaying eq "/!";
		2716	}
1837		2717
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
1840		2721
		2722	$self->goto ($map, $x, $y);
		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1841	1;	2728	1
1842	}) {	2729	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1844	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2732	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2734
1848	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2736	$self->leave_link;
1850	}	2737	}
1851	})->prio (1);	2738	})->prio (1);
…		…
1864		2751
1865	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1867		2754
1868	utf8::encode $text;	2755	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2757	}
1871		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/shopinfo" => {
		2789	id => "infobox",
		2790	title => "Shop Info",
		2791	reply => undef,
		2792	tooltip => "What your bargaining skill tells you about the shop",
		2793	},
		2794	"c/book" => {
		2795	id => "infobox",
		2796	title => "Book",
		2797	reply => undef,
		2798	tooltip => "The contents of a note or book",
		2799	},
		2800	"c/lookat" => {
		2801	id => "infobox",
		2802	title => "Look",
		2803	reply => undef,
		2804	tooltip => "What you saw there",
		2805	},
		2806	"c/who" => {
		2807	id => "infobox",
		2808	title => "Players",
		2809	reply => undef,
		2810	tooltip => "Shows players who are currently online",
		2811	},
		2812	"c/body" => {
		2813	id => "infobox",
		2814	title => "Body Parts",
		2815	reply => undef,
		2816	tooltip => "Shows which body parts you posess and are available",
		2817	},
		2818	"c/statistics" => {
		2819	id => "infobox",
		2820	title => "Statistics",
		2821	reply => undef,
		2822	tooltip => "Shows your primary statistics",
		2823	},
		2824	"c/skills" => {
		2825	id => "infobox",
		2826	title => "Skills",
		2827	reply => undef,
		2828	tooltip => "Shows your experience per skill and item power",
		2829	},
		2830	"c/shopitems" => {
		2831	id => "infobox",
		2832	title => "Shop Items",
		2833	reply => undef,
		2834	tooltip => "Shows the items currently for sale in this shop",
		2835	},
		2836	"c/resistances" => {
		2837	id => "infobox",
		2838	title => "Resistances",
		2839	reply => undef,
		2840	tooltip => "Shows your resistances",
		2841	},
		2842	"c/pets" => {
		2843	id => "infobox",
		2844	title => "Pets",
		2845	reply => undef,
		2846	tooltip => "Shows information abotu your pets/a specific pet",
		2847	},
		2848	"c/perceiveself" => {
		2849	id => "infobox",
		2850	title => "Perceive Self",
		2851	reply => undef,
		2852	tooltip => "You gained detailed knowledge about yourself",
		2853	},
		2854	"c/uptime" => {
		2855	id => "infobox",
		2856	title => "Uptime",
		2857	reply => undef,
		2858	tooltip => "How long the server has been running since last restart",
		2859	},
		2860	"c/mapinfo" => {
		2861	id => "infobox",
		2862	title => "Map Info",
		2863	reply => undef,
		2864	tooltip => "Information related to the maps",
		2865	},
		2866	"c/party" => {
		2867	id => "party",
		2868	title => "Party",
		2869	reply => "gsay ",
		2870	tooltip => "Messages and chat related to your party",
		2871	},
		2872	"c/death" => {
		2873	id => "death",
		2874	title => "Death",
		2875	reply => undef,
		2876	tooltip => "Reason for and more info about your most recent death",
		2877	},
		2878	"c/say" => $SAY_CHANNEL,
		2879	"c/chat" => $CHAT_CHANNEL,
		2880	);
		2881
		2882	sub cf::client::send_msg {
		2883	my ($self, $channel, $msg, $color, @extra) = @_;
		2884
		2885	$msg = $self->pl->expand_cfpod ($msg)
		2886	unless $color & cf::NDI_VERBATIM;
		2887
		2888	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2889
		2890	# check predefined channels, for the benefit of C
		2891	if ($CHANNEL{$channel}) {
		2892	$channel = $CHANNEL{$channel};
		2893
		2894	$self->ext_msg (channel_info => $channel);
		2895	$channel = $channel->{id};
		2896
		2897	} elsif (ref $channel) {
		2898	# send meta info to client, if not yet sent
		2899	unless (exists $self->{channel}{$channel->{id}}) {
		2900	$self->{channel}{$channel->{id}} = $channel;
		2901	$self->ext_msg (channel_info => $channel);
		2902	}
		2903
		2904	$channel = $channel->{id};
		2905	}
		2906
		2907	return unless @extra || length $msg;
		2908
		2909	# default colour, mask it out
		2910	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2911	if $color & cf::NDI_DEF;
		2912
		2913	my $pkt = "msg "
		2914	. $self->{json_coder}->encode (
		2915	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2916	);
		2917
		2918	# try lzf for large packets
		2919	$pkt = "lzf " . Compress::LZF::compress $pkt
		2920	if 1024 <= length $pkt and $self->{can_lzf};
		2921
		2922	# split very large packets
		2923	if (8192 < length $pkt and $self->{can_lzf}) {
		2924	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2925	$pkt = "frag";
		2926	}
		2927
		2928	$self->send_packet ($pkt);
		2929	}
		2930
		2931	=item $client->ext_msg ($type, @msg)
		2932
		2933	Sends an ext event to the client.
		2934
		2935	=cut
		2936
		2937	sub cf::client::ext_msg($$@) {
		2938	my ($self, $type, @msg) = @_;
		2939
		2940	if ($self->extcmd == 2) {
		2941	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2942	} elsif ($self->extcmd == 1) { # TODO: remove
		2943	push @msg, msgtype => "event_$type";
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2945	}
		2946	}
		2947
		2948	=item $client->ext_reply ($msgid, @msg)
		2949
		2950	Sends an ext reply to the client.
		2951
		2952	=cut
		2953
		2954	sub cf::client::ext_reply($$@) {
		2955	my ($self, $id, @msg) = @_;
		2956
		2957	if ($self->extcmd == 2) {
		2958	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2959	} elsif ($self->extcmd == 1) {
		2960	#TODO: version 1, remove
		2961	unshift @msg, msgtype => "reply", msgid => $id;
		2962	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2963	}
		2964	}
1872		2965
1873	=item $success = $client->query ($flags, "text", \&cb)	2966	=item $success = $client->query ($flags, "text", \&cb)
1874		2967
1875	Queues a query to the client, calling the given callback with	2968	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2969	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2970	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		2971
1879	Queries can fail, so check the return code. Or don't, as queries will become	2972	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	2973	become reliable at some point in the future.
1881		2974
1882	=cut	2975	=cut
1883		2976
1884	sub cf::client::query {	2977	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	2978	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	2986	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2987	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		2988
1896	$self->send_packet ($self->{query_queue}[0][0])	2989	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	2990	if @{ $self->{query_queue} } == 1;
		2991
		2992	1
1898	}	2993	}
1899		2994
1900	cf::client->attach (	2995	cf::client->attach (
		2996	on_connect => sub {
		2997	my ($ns) = @_;
		2998
		2999	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3000	},
1901	on_reply => sub {	3001	on_reply => sub {
1902	my ($ns, $msg) = @_;	3002	my ($ns, $msg) = @_;
1903		3003
1904	# this weird shuffling is so that direct followup queries	3004	# this weird shuffling is so that direct followup queries
1905	# get handled first	3005	# get handled first
1906	my $queue = delete $ns->{query_queue}	3006	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	3007	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		3008
1909	(shift @$queue)->[1]->($msg);	3009	(shift @$queue)->[1]->($msg);
		3010	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		3011
1911	push @{ $ns->{query_queue} }, @$queue;	3012	push @{ $ns->{query_queue} }, @$queue;
1912		3013
1913	if (@{ $ns->{query_queue} } == @$queue) {	3014	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	3015	if (@$queue) {
…		…
1916	} else {	3017	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	3019	}
1919	}	3020	}
1920	},	3021	},
		3022	on_exticmd => sub {
		3023	my ($ns, $buf) = @_;
		3024
		3025	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3026
		3027	if (ref $msg) {
		3028	my ($type, $reply, @payload) =
		3029	"ARRAY" eq ref $msg
		3030	? @$msg
		3031	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3032
		3033	my @reply;
		3034
		3035	if (my $cb = $EXTICMD{$type}) {
		3036	@reply = $cb->($ns, @payload);
		3037	}
		3038
		3039	$ns->ext_reply ($reply, @reply)
		3040	if $reply;
		3041
		3042	} else {
		3043	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3044	}
		3045
		3046	cf::override;
		3047	},
1921	);	3048	);
1922		3049
1923	=item $client->async (\&cb)	3050	=item $client->async (\&cb)
1924		3051
1925	Create a new coroutine, running the specified callback. The coroutine will	3052	Create a new coroutine, running the specified callback. The coroutine will
…		…
1966	our $safe = new Safe "safe";	3093	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3094	our $safe_hole = new Safe::Hole;
1968		3095
1969	$SIG{FPE} = 'IGNORE';	3096	$SIG{FPE} = 'IGNORE';
1970		3097
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3098	$safe->permit_only (Opcode::opset qw(
		3099	:base_core :base_mem :base_orig :base_math
		3100	grepstart grepwhile mapstart mapwhile
		3101	sort time
		3102	));
1972		3103
1973	# here we export the classes and methods available to script code	3104	# here we export the classes and methods available to script code
1974		3105
1975	=pod	3106	=pod
1976		3107
1977	The following fucntions and emthods are available within a safe environment:	3108	The following functions and methods are available within a safe environment:
1978		3109
1979	cf::object contr pay_amount pay_player map	3110	cf::object
		3111	contr pay_amount pay_player map x y force_find force_add destroy
		3112	insert remove name archname title slaying race decrease split
		3113	value
		3114
1980	cf::object::player player	3115	cf::object::player
1981	cf::player peaceful	3116	player
1982	cf::map trigger	3117
		3118	cf::player
		3119	peaceful
		3120
		3121	cf::map
		3122	trigger
1983		3123
1984	=cut	3124	=cut
1985		3125
1986	for (	3126	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3127	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3128	insert remove inv nrof name archname title slaying race
		3129	decrease split destroy change_exp value msg lore send_msg)],
1988	["cf::object::player" => qw(player)],	3130	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3131	["cf::player" => qw(peaceful send_msg)],
1990	["cf::map" => qw(trigger)],	3132	["cf::map" => qw(trigger)],
1991	) {	3133	) {
1992	no strict 'refs';	3134	no strict 'refs';
1993	my ($pkg, @funs) = @$_;	3135	my ($pkg, @funs) = @$_;
1994	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3136	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2011	my ($code, %vars) = @_;	3153	my ($code, %vars) = @_;
2012		3154
2013	my $qcode = $code;	3155	my $qcode = $code;
2014	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3156	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2015	$qcode =~ s/\n/\\n/g;	3157	$qcode =~ s/\n/\\n/g;
		3158
		3159	%vars = (_dummy => 0) unless %vars;
2016		3160
2017	local $_;	3161	local $_;
2018	local @safe::cf::_safe_eval_args = values %vars;	3162	local @safe::cf::_safe_eval_args = values %vars;
2019		3163
2020	my $eval =	3164	my $eval =
…		…
2063	=back	3207	=back
2064		3208
2065	=cut	3209	=cut
2066		3210
2067	#############################################################################	3211	#############################################################################
		3212	# the server's init and main functions
2068		3213
2069	=head2 EXTENSION DATABASE SUPPORT	3214	sub load_facedata($) {
		3215	my ($path) = @_;
2070		3216
2071	Crossfire maintains a very simple database for extension use. It can	3217	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3218	# for this (global event?)
2073	excludes objects.	3219	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3220
2075	The parameter C<$family> should best start with the name of the extension	3221	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3222
2078	=over 4	3223	warn "loading facedata from $path\n";
2079		3224
2080	=item $hashref = cf::db_get $family	3225	my $facedata;
		3226	0 < aio_load $path, $facedata
		3227	or die "$path: $!";
2081		3228
2082	Return a hashref for use by the extension C<$family>, which can be	3229	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3230
2086	=item $value = cf::db_get $family => $key	3231	$facedata->{version} == 2
		3232	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3233
2088	Returns a single value from the database	3234	# patch in the exptable
2089		3235	$facedata->{resource}{"res/exp_table"} = {
2090	=item cf::db_put $family => $hashref	3236	type => FT_RSRC,
2091		3237	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3238	};
		3239	cf::cede_to_tick;
2141		3240
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3241	{
		3242	my $faces = $facedata->{faceinfo};
2146		3243
2147	sub db_get($;$) {	3244	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3245	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		3246
2153	sub db_put($$;$) {	3247	cf::face::set_visibility $idx, $info->{visibility};
2154	if (@_ >= 3) {	3248	cf::face::set_magicmap $idx, $info->{magicmap};
2155	$DB->{$_[0]}{$_[1]} = $_[2];	3249	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2156	} else {	3250	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		3251
2162	cf::global->attach (	3252	cf::cede_to_tick;
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3253	}
2167	);
2168	}
2169		3254
2170	#############################################################################	3255	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3256	next unless $info->{smooth};
2172		3257
2173	sub cfg_load {	3258	my $idx = cf::face::find $face
		3259	or next;
		3260
		3261	if (my $smooth = cf::face::find $info->{smooth}) {
		3262	cf::face::set_smooth $idx, $smooth;
		3263	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3264	} else {
		3265	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3266	}
		3267
		3268	cf::cede_to_tick;
		3269	}
		3270	}
		3271
		3272	{
		3273	my $anims = $facedata->{animinfo};
		3274
		3275	while (my ($anim, $info) = each %$anims) {
		3276	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3277	cf::cede_to_tick;
		3278	}
		3279
		3280	cf::anim::invalidate_all; # d'oh
		3281	}
		3282
		3283	{
		3284	# TODO: for gcfclient pleasure, we should give resources
		3285	# that gcfclient doesn't grok a >10000 face index.
		3286	my $res = $facedata->{resource};
		3287
		3288	while (my ($name, $info) = each %$res) {
		3289	if (defined $info->{type}) {
		3290	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3291	my $data;
		3292
		3293	if ($info->{type} & 1) {
		3294	# prepend meta info
		3295
		3296	my $meta = $enc->encode ({
		3297	name => $name,
		3298	%{ $info->{meta} || {} },
		3299	});
		3300
		3301	$data = pack "(w/a*)*", $meta, $info->{data};
		3302	} else {
		3303	$data = $info->{data};
		3304	}
		3305
		3306	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3307	cf::face::set_type $idx, $info->{type};
		3308	} else {
		3309	$RESOURCE{$name} = $info;
		3310	}
		3311
		3312	cf::cede_to_tick;
		3313	}
		3314	}
		3315
		3316	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3317
		3318	1
		3319	}
		3320
		3321	cf::global->attach (on_resource_update => sub {
		3322	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3323	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3324
		3325	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3326	my $sound = $soundconf->{compat}[$_]
		3327	or next;
		3328
		3329	my $face = cf::face::find "sound/$sound->[1]";
		3330	cf::sound::set $sound->[0] => $face;
		3331	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3332	}
		3333
		3334	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3335	my $face = cf::face::find "sound/$v";
		3336	cf::sound::set $k => $face;
		3337	}
		3338	}
		3339	});
		3340
		3341	register_exticmd fx_want => sub {
		3342	my ($ns, $want) = @_;
		3343
		3344	while (my ($k, $v) = each %$want) {
		3345	$ns->fx_want ($k, $v);
		3346	}
		3347	};
		3348
		3349	sub load_resource_file($) {
		3350	my $guard = lock_acquire "load_resource_file";
		3351
		3352	my $status = load_resource_file_ $_[0];
		3353	get_slot 0.1, 100;
		3354	cf::arch::commit_load;
		3355
		3356	$status
		3357	}
		3358
		3359	sub reload_regions {
		3360	# HACK to clear player env face cache, we need some signal framework
		3361	# for this (global event?)
		3362	%ext::player_env::MUSIC_FACE_CACHE = ();
		3363
		3364	load_resource_file "$MAPDIR/regions"
		3365	or die "unable to load regions file\n";
		3366
		3367	for (cf::region::list) {
		3368	$_->{match} = qr/$_->{match}/
		3369	if exists $_->{match};
		3370	}
		3371	}
		3372
		3373	sub reload_facedata {
		3374	load_facedata "$DATADIR/facedata"
		3375	or die "unable to load facedata\n";
		3376	}
		3377
		3378	sub reload_archetypes {
		3379	load_resource_file "$DATADIR/archetypes"
		3380	or die "unable to load archetypes\n";
		3381	}
		3382
		3383	sub reload_treasures {
		3384	load_resource_file "$DATADIR/treasures"
		3385	or die "unable to load treasurelists\n";
		3386	}
		3387
		3388	sub reload_resources {
		3389	warn "reloading resource files...\n";
		3390
		3391	reload_facedata;
		3392	reload_archetypes;
		3393	reload_regions;
		3394	reload_treasures;
		3395
		3396	warn "finished reloading resource files\n";
		3397	}
		3398
		3399	sub reload_config {
		3400	warn "reloading config file...\n";
		3401
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3402	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3403	or return;
2176		3404
2177	local $/;	3405	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3406	*CFG = YAML::XS::Load scalar <$fh>;
2179		3407
2180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2181		3409
2182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2187	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3415	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2188	and die "WARNING: m(un)lockall failed: $!\n";	3416	and die "WARNING: m(un)lockall failed: $!\n";
2189	};	3417	};
2190	warn $@ if $@;	3418	warn $@ if $@;
2191	}	3419	}
		3420
		3421	warn "finished reloading resource files\n";
		3422	}
		3423
		3424	sub pidfile() {
		3425	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3426	or die "$PIDFILE: $!";
		3427	flock $fh, &Fcntl::LOCK_EX
		3428	or die "$PIDFILE: flock: $!";
		3429	$fh
		3430	}
		3431
		3432	# make sure only one server instance is running at any one time
		3433	sub atomic {
		3434	my $fh = pidfile;
		3435
		3436	my $pid = <$fh>;
		3437	kill 9, $pid if $pid > 0;
		3438
		3439	seek $fh, 0, 0;
		3440	print $fh $$;
		3441	}
		3442
		3443	sub main_loop {
		3444	warn "EV::loop starting\n";
		3445	if (1) {
		3446	EV::loop;
		3447	}
		3448	warn "EV::loop returned\n";
		3449	goto &main_loop unless $REALLY_UNLOOP;
2192	}	3450	}
2193		3451
2194	sub main {	3452	sub main {
		3453	cf::init_globals; # initialise logging
		3454
		3455	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3456	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3457	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3458	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3459
		3460	cf::init_experience;
		3461	cf::init_anim;
		3462	cf::init_attackmess;
		3463	cf::init_dynamic;
		3464
		3465	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3466
2195	# we must not ever block the main coroutine	3467	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3468	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3469	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3470	(async {
		3471	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3472	EV::loop EV::LOOP_ONESHOT;
		3473	})->prio (Coro::PRIO_MAX);
2199	};	3474	};
2200		3475
2201	cfg_load;	3476	evthread_start IO::AIO::poll_fileno;
2202	db_load;	3477
		3478	cf::sync_job {
		3479	reload_resources;
		3480	reload_config;
		3481	db_init;
		3482
		3483	cf::load_settings;
		3484	cf::load_materials;
		3485	cf::init_uuid;
		3486	cf::init_signals;
		3487	cf::init_commands;
		3488	cf::init_skills;
		3489
		3490	cf::init_beforeplay;
		3491
		3492	atomic;
		3493
2203	load_extensions;	3494	load_extensions;
2204	Event::loop;	3495
		3496	utime time, time, $RUNTIMEFILE;
		3497
		3498	# no (long-running) fork's whatsoever before this point(!)
		3499	use POSIX ();
		3500	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3501
		3502	(pop @POST_INIT)->(0) while @POST_INIT;
		3503	};
		3504
		3505	main_loop;
2205	}	3506	}
2206		3507
2207	#############################################################################	3508	#############################################################################
2208	# initialisation and cleanup	3509	# initialisation and cleanup
2209		3510
2210	# install some emergency cleanup handlers	3511	# install some emergency cleanup handlers
2211	BEGIN {	3512	BEGIN {
		3513	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3514	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3515	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3516	cf::cleanup "SIG$signal";
2218	},
2219	);	3517	};
		3518	}
		3519	}
		3520
		3521	sub write_runtime_sync {
		3522	# first touch the runtime file to show we are still running:
		3523	# the fsync below can take a very very long time.
		3524
		3525	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3526
		3527	my $guard = cf::lock_acquire "write_runtime";
		3528
		3529	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3530	or return;
		3531
		3532	my $value = $cf::RUNTIME + 90 + 10;
		3533	# 10 is the runtime save interval, for a monotonic clock
		3534	# 60 allows for the watchdog to kill the server.
		3535
		3536	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3537	and return;
		3538
		3539	# always fsync - this file is important
		3540	aio_fsync $fh
		3541	and return;
		3542
		3543	# touch it again to show we are up-to-date
		3544	aio_utime $fh, undef, undef;
		3545
		3546	close $fh
		3547	or return;
		3548
		3549	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3550	and return;
		3551
		3552	warn "runtime file written.\n";
		3553
2220	}	3554	1
2221	}	3555	}
2222		3556
		3557	our $uuid_lock;
		3558	our $uuid_skip;
		3559
		3560	sub write_uuid_sync($) {
		3561	$uuid_skip ||= $_[0];
		3562
		3563	return if $uuid_lock;
		3564	local $uuid_lock = 1;
		3565
		3566	my $uuid = "$LOCALDIR/uuid";
		3567
		3568	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3569	or return;
		3570
		3571	my $value = uuid_seq uuid_cur;
		3572
		3573	unless ($value) {
		3574	warn "cowardly refusing to write zero uuid value!\n";
		3575	return;
		3576	}
		3577
		3578	my $value = uuid_str $value + $uuid_skip;
		3579	$uuid_skip = 0;
		3580
		3581	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3582	and return;
		3583
		3584	# always fsync - this file is important
		3585	aio_fsync $fh
		3586	and return;
		3587
		3588	close $fh
		3589	or return;
		3590
		3591	aio_rename "$uuid~", $uuid
		3592	and return;
		3593
		3594	warn "uuid file written ($value).\n";
		3595
		3596	1
		3597
		3598	}
		3599
		3600	sub write_uuid($$) {
		3601	my ($skip, $sync) = @_;
		3602
		3603	$sync ? write_uuid_sync $skip
		3604	: async { write_uuid_sync $skip };
		3605	}
		3606
2223	sub emergency_save {	3607	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3608	my $freeze_guard = cf::freeze_mainloop;
2225		3609
2226	warn "enter emergency perl save\n";	3610	warn "emergency_perl_save: enter\n";
2227		3611
2228	cf::sync_job {	3612	cf::sync_job {
		3613	# this is a trade-off: we want to be very quick here, so
		3614	# save all maps without fsync, and later call a global sync
		3615	# (which in turn might be very very slow)
		3616	local $USE_FSYNC = 0;
		3617
2229	# use a peculiar iteration method to avoid tripping on perl	3618	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3619	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3620	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3621	warn "emergency_perl_save: begin player save\n";
2233	for my $login (keys %cf::PLAYER) {	3622	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3623	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3624	$pl->valid or next;
		3625	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3626	$pl->save;
2237	}	3627	}
2238	warn "end emergency player save\n";	3628	warn "emergency_perl_save: end player save\n";
2239		3629
2240	warn "begin emergency map save\n";	3630	warn "emergency_perl_save: begin map save\n";
2241	for my $path (keys %cf::MAP) {	3631	for my $path (keys %cf::MAP) {
2242	my $map = $cf::MAP{$path} or next;	3632	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3633	$map->valid or next;
2244	$map->save;	3634	$map->save;
2245	}	3635	}
2246	warn "end emergency map save\n";	3636	warn "emergency_perl_save: end map save\n";
		3637
		3638	warn "emergency_perl_save: begin database checkpoint\n";
		3639	BDB::db_env_txn_checkpoint $DB_ENV;
		3640	warn "emergency_perl_save: end database checkpoint\n";
		3641
		3642	warn "emergency_perl_save: begin write uuid\n";
		3643	write_uuid_sync 1;
		3644	warn "emergency_perl_save: end write uuid\n";
2247	};	3645	};
2248		3646
		3647	warn "emergency_perl_save: starting sync()\n";
		3648	IO::AIO::aio_sync sub {
		3649	warn "emergency_perl_save: finished sync()\n";
		3650	};
		3651
2249	warn "leave emergency perl save\n";	3652	warn "emergency_perl_save: leave\n";
2250	}	3653	}
2251		3654
		3655	sub post_cleanup {
		3656	my ($make_core) = @_;
		3657
		3658	warn Carp::longmess "post_cleanup backtrace"
		3659	if $make_core;
		3660
		3661	my $fh = pidfile;
		3662	unlink $PIDFILE if <$fh> == $$;
		3663	}
		3664
		3665	# a safer delete_package, copied from Symbol
		3666	sub clear_package($) {
		3667	my $pkg = shift;
		3668
		3669	# expand to full symbol table name if needed
		3670	unless ($pkg =~ /^main::.*::$/) {
		3671	$pkg = "main$pkg" if $pkg =~ /^::/;
		3672	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3673	$pkg .= '::' unless $pkg =~ /::$/;
		3674	}
		3675
		3676	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3677	my $stem_symtab = *{$stem}{HASH};
		3678
		3679	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3680	or return;
		3681
		3682	# clear all symbols
		3683	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3684	for my $name (keys %$leaf_symtab) {
		3685	_gv_clear *{"$pkg$name"};
		3686	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3687	}
		3688	warn "cleared package $pkg\n";#d#
		3689	}
		3690
2252	sub reload() {	3691	sub do_reload_perl() {
2253	# can/must only be called in main	3692	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3693	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	3694	warn "can only reload from main coroutine";
2256	return;	3695	return;
2257	}	3696	}
2258		3697
		3698	return if $RELOAD++;
		3699
		3700	my $t1 = EV::time;
		3701
		3702	while ($RELOAD) {
2259	warn "reloading...";	3703	warn "reloading...";
2260		3704
2261	my $guard = freeze_mainloop;	3705	warn "entering sync_job";
		3706
		3707	cf::sync_job {
		3708	cf::write_runtime_sync; # external watchdog should not bark
2262	cf::emergency_save;	3709	cf::emergency_save;
		3710	cf::write_runtime_sync; # external watchdog should not bark
2263		3711
2264	eval {	3712	warn "syncing database to disk";
		3713	BDB::db_env_txn_checkpoint $DB_ENV;
		3714
2265	# if anything goes wrong in here, we should simply crash as we already saved	3715	# if anything goes wrong in here, we should simply crash as we already saved
2266		3716
2267	# cancel all watchers	3717	warn "flushing outstanding aio requests";
2268	for (Event::all_watchers) {	3718	while (IO::AIO::nreqs || BDB::nreqs) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	3719	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2270	}
2271
2272	# cancel all extension coros
2273	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();
2275
2276	# unload all extensions
2277	for (@exts) {
2278	warn "unloading <$_>";
2279	unload_extension $_;
2280	}
2281
2282	# unload all modules loaded from $LIBDIR
2283	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285
2286	warn "removing <$k>";
2287	delete $INC{$k};
2288
2289	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;
2291
2292	if (my $cb = $k->can ("unload_module")) {
2293	$cb->();
2294	}	3720	}
2295		3721
2296	Symbol::delete_package $k;	3722	warn "cancelling all extension coros";
		3723	$_->cancel for values %EXT_CORO;
		3724	%EXT_CORO = ();
		3725
		3726	warn "removing commands";
		3727	%COMMAND = ();
		3728
		3729	warn "removing ext/exti commands";
		3730	%EXTCMD = ();
		3731	%EXTICMD = ();
		3732
		3733	warn "unloading/nuking all extensions";
		3734	for my $pkg (@EXTS) {
		3735	warn "... unloading $pkg";
		3736
		3737	if (my $cb = $pkg->can ("unload")) {
		3738	eval {
		3739	$cb->($pkg);
		3740	1
		3741	} or warn "$pkg unloaded, but with errors: $@";
		3742	}
		3743
		3744	warn "... clearing $pkg";
		3745	clear_package $pkg;
2297	}	3746	}
2298		3747
2299	# sync database to disk	3748	warn "unloading all perl modules loaded from $LIBDIR";
2300	cf::db_sync;	3749	while (my ($k, $v) = each %INC) {
2301	IO::AIO::flush;	3750	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2302		3751
		3752	warn "... unloading $k";
		3753	delete $INC{$k};
		3754
		3755	$k =~ s/\.pm$//;
		3756	$k =~ s/\//::/g;
		3757
		3758	if (my $cb = $k->can ("unload_module")) {
		3759	$cb->();
		3760	}
		3761
		3762	clear_package $k;
		3763	}
		3764
2303	# get rid of safe::, as good as possible	3765	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3766	clear_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3767	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3768
2307	# remove register_script_function callbacks	3769	warn "unloading cf.pm \"a bit\"";
2308	# TODO
2309
2310	# unload cf.pm "a bit"
2311	delete $INC{"cf.pm"};	3770	delete $INC{"cf.pm"};
		3771	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2312		3772
2313	# don't, removes xs symbols, too,	3773	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3774	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3775	#clear_package __PACKAGE__;
2316		3776
2317	# reload cf.pm	3777	warn "unload completed, starting to reload now";
		3778
2318	warn "reloading cf.pm";	3779	warn "reloading cf.pm";
2319	require cf;	3780	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3781	cf::_connect_to_perl_1;
2321		3782
2322	# load config and database again	3783	warn "loading config and database again";
2323	cf::cfg_load;	3784	cf::reload_config;
2324	cf::db_load;
2325		3785
2326	# load extensions
2327	warn "load extensions";	3786	warn "loading extensions";
2328	cf::load_extensions;	3787	cf::load_extensions;
2329		3788
2330	# reattach attachments to objects	3789	if ($REATTACH_ON_RELOAD) {
2331	warn "reattach";	3790	warn "reattaching attachments to objects/players";
2332	_global_reattach;	3791	_global_reattach; # objects, sockets
		3792	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3793	reattach $_ for values %MAP;
		3794	warn "reattaching attachments to players";
		3795	reattach $_ for values %PLAYER;
		3796	}
		3797
		3798	warn "running post_init jobs";
		3799	(pop @POST_INIT)->(1) while @POST_INIT;
		3800
		3801	warn "leaving sync_job";
		3802
		3803	1
		3804	} or do {
		3805	warn $@;
		3806	cf::cleanup "error while reloading, exiting.";
		3807	};
		3808
		3809	warn "reloaded";
		3810	--$RELOAD;
		3811	}
		3812
		3813	$t1 = EV::time - $t1;
		3814	warn "reload completed in ${t1}s\n";
		3815	};
		3816
		3817	our $RELOAD_WATCHER; # used only during reload
		3818
		3819	sub reload_perl() {
		3820	# doing reload synchronously and two reloads happen back-to-back,
		3821	# coro crashes during coro_state_free->destroy here.
		3822
		3823	$RELOAD_WATCHER ||= cf::async {
		3824	Coro::AIO::aio_wait cache_extensions;
		3825
		3826	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3827	do_reload_perl;
		3828	undef $RELOAD_WATCHER;
		3829	};
2334	};	3830	};
2335
2336	if ($@) {
2337	warn $@;
2338	warn "error while reloading, exiting.";
2339	exit 1;
2340	}
2341
2342	warn "reloaded successfully";
2343	};
2344
2345	#############################################################################
2346
2347	unless ($LINK_MAP) {
2348	$LINK_MAP = cf::map::new;
2349
2350	$LINK_MAP->width (41);
2351	$LINK_MAP->height (41);
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3831	}
2387
2388	register "<global>", __PACKAGE__;
2389		3832
2390	register_command "reload" => sub {	3833	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3834	my ($who, $arg) = @_;
2392		3835
2393	if ($who->flag (FLAG_WIZ)) {	3836	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3837	$who->message ("reloading server.");
		3838	async {
		3839	$Coro::current->{desc} = "perl_reload";
		3840	reload_perl;
		3841	};
2397	}	3842	}
2398	};	3843	};
2399		3844
2400	unshift @INC, $LIBDIR;	3845	unshift @INC, $LIBDIR;
2401		3846
2402	$TICK_WATCHER = Event->timer (	3847	my $bug_warning = 0;
2403	reentrant => 0,	3848
2404	prio => 0,	3849	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	3850	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	3851
2407	cb => sub {	3852	sub wait_for_tick {
		3853	return if tick_inhibit || $Coro::current == $Coro::main;
		3854
		3855	my $signal = new Coro::Signal;
		3856	push @WAIT_FOR_TICK, $signal;
		3857	$signal->wait;
		3858	}
		3859
		3860	sub wait_for_tick_begin {
		3861	return if tick_inhibit || $Coro::current == $Coro::main;
		3862
		3863	my $signal = new Coro::Signal;
		3864	push @WAIT_FOR_TICK_BEGIN, $signal;
		3865	$signal->wait;
		3866	}
		3867
		3868	sub tick {
		3869	if ($Coro::current != $Coro::main) {
		3870	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3871	unless ++$bug_warning > 10;
		3872	return;
		3873	}
		3874
2408	cf::server_tick; # one server iteration	3875	cf::server_tick; # one server iteration
2409	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;
2411		3876
2412	$WAIT_FOR_TICK->broadcast;	3877	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3878	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2414		3879	Coro::async_pool {
2415	# if we are delayed by four ticks or more, skip them all	3880	$Coro::current->{desc} = "runtime saver";
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2417
2418	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	3881	write_runtime_sync
2440	or warn "ERROR: unable to write runtime file: $!";	3882	or warn "ERROR: unable to write runtime file: $!";
2441	})->();	3883	};
2442	},	3884	}
2443	);	3885
		3886	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3887	$sig->send;
		3888	}
		3889	while (my $sig = shift @WAIT_FOR_TICK) {
		3890	$sig->send;
		3891	}
		3892
		3893	$LOAD = ($NOW - $TICK_START) / $TICK;
		3894	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3895
		3896	if (0) {
		3897	if ($NEXT_TICK) {
		3898	my $jitter = $TICK_START - $NEXT_TICK;
		3899	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3900	warn "jitter $JITTER\n";#d#
		3901	}
		3902	}
		3903	}
		3904
		3905	{
		3906	# configure BDB
		3907
		3908	BDB::min_parallel 8;
		3909	BDB::max_poll_reqs $TICK * 0.1;
		3910	$AnyEvent::BDB::WATCHER->priority (1);
		3911
		3912	unless ($DB_ENV) {
		3913	$DB_ENV = BDB::db_env_create;
		3914	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3915	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3916	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3917	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3918	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3919
		3920	cf::sync_job {
		3921	eval {
		3922	BDB::db_env_open
		3923	$DB_ENV,
		3924	$BDBDIR,
		3925	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3926	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3927	0666;
		3928
		3929	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3930	};
		3931
		3932	cf::cleanup "db_env_open(db): $@" if $@;
		3933	};
		3934	}
		3935
		3936	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3937	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3938	};
		3939	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3940	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3941	};
		3942	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3943	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3944	};
		3945	}
		3946
		3947	{
		3948	# configure IO::AIO
		3949
		3950	IO::AIO::min_parallel 8;
		3951	IO::AIO::max_poll_time $TICK * 0.1;
		3952	undef $AnyEvent::AIO::WATCHER;
		3953	}
		3954
		3955	my $_log_backtrace;
		3956
		3957	sub _log_backtrace {
		3958	my ($msg, @addr) = @_;
		3959
		3960	$msg =~ s/\n//;
		3961
		3962	# limit the # of concurrent backtraces
		3963	if ($_log_backtrace < 2) {
		3964	++$_log_backtrace;
		3965	my $perl_bt = Carp::longmess $msg;
		3966	async {
		3967	$Coro::current->{desc} = "abt $msg";
		3968
		3969	my @bt = fork_call {
		3970	@addr = map { sprintf "%x", $_ } @addr;
		3971	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3972	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3973	or die "addr2line: $!";
		3974
		3975	my @funcs;
		3976	my @res = <$fh>;
		3977	chomp for @res;
		3978	while (@res) {
		3979	my ($func, $line) = splice @res, 0, 2, ();
		3980	push @funcs, "[$func] $line";
		3981	}
		3982
		3983	@funcs
		3984	};
		3985
		3986	LOG llevInfo, "[ABT] $perl_bt\n";
		3987	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3988	LOG llevInfo, "[ABT] $_\n" for @bt;
		3989	--$_log_backtrace;
		3990	};
		3991	} else {
		3992	LOG llevInfo, "[ABT] $msg\n";
		3993	LOG llevInfo, "[ABT] [suppressed]\n";
		3994	}
		3995	}
		3996
		3997	# load additional modules
		3998	require "cf/$_.pm" for @EXTRA_MODULES;
		3999	cf::_connect_to_perl_2;
2444		4000
2445	END { cf::emergency_save }	4001	END { cf::emergency_save }
2446		4002
2447	1	4003	1
2448		4004

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