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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.159 by root, Wed Jan 10 22:50:12 2007 UTC vs.
Revision 1.468 by root, Thu Jan 8 19:23:44 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
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		76
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	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		78
36	our %COMMAND = ();	79	our %COMMAND = ();
37	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
38		81
39	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
42		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
43	our @EVENT;	89	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		90
46	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
47	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	109	our $NEXT_TICK;
49	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
50		118
51	our %CFG;	119	our %CFG;
52		120
53	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
55		124
56	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
57	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
58	our $LINK_MAP; # the special {link} map	127	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		128
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	129	# used to convert map paths into valid unix filenames by replacing / by ∕
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
63		140
64	binmode STDOUT;	141	binmode STDOUT;
65	binmode STDERR;	142	binmode STDERR;
66		143
67	# read virtual server time, if available	144	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
69	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
70	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
71	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
72	}	149	}
73		150
74	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
75	mkdir cf::localdir . "/" . cf::playerdir;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		152
80	# a special map that is always available	153	mkdir $_
81	our $LINK_MAP;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		155
82	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
83		159
84	#############################################################################	160	#############################################################################
85		161
86	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
87		163
…		…
94	=item $cf::RUNTIME	170	=item $cf::RUNTIME
95		171
96	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
97	every server tick.	173	every server tick.
98		174
99	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
100		178
101	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
102	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
103		183
104	=item $cf::NOW	184	=item $cf::NOW
105		185
106	The time of the last (current) server tick.	186	The time of the last (current) server tick.
107		187
108	=item $cf::TICK	188	=item $cf::TICK
109		189
110	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
111		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
112	=item %cf::CFG	202	=item %cf::CFG
113		203
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
115	from wherever your confdir points to.	205	from wherever your confdir points to.
116		206
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	207	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		208
119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	210	returns directly I<after> the tick processing (and consequently, can only wake one process
121	processing has been done. Call C<< ->wait >> on them to maximise the	211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
122	window of cpu time available, or simply to synchronise to the server tick.	212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
123		218
124	=back	219	=back
125		220
126	=cut	221	=cut
127		222
128	BEGIN {	223	BEGIN {
129	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	225	my $msg = join "", @_;
131	utf8::encode $msg;
132		226
133	$msg .= "\n"	227	$msg .= "\n"
134	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
135		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
136	LOG llevError, $msg;	232	LOG llevError, $msg;
137	};	233	};
138	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
139		250
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
145	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
146		258
147	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
148	# within the Safe compartment.	260	# within the Safe compartment.
149	for my $pkg (qw(	261	for my $pkg (qw(
150	cf::global cf::attachable	262	cf::global cf::attachable
151	cf::object cf::object::player	263	cf::object cf::object::player
152	cf::client cf::player	264	cf::client cf::player
153	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
154	cf::map cf::party cf::region	267	cf::party cf::region
155	)) {	268	)) {
156	no strict 'refs';
157	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
158	}	270	}
159		271
160	$Event::DIED = sub {	272	$EV::DIED = sub {
161	warn "error in event callback: @_";	273	warn "error in event callback: @_";
162	};	274	};
		275
		276	#############################################################################
163		277
164	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
165		279
166	=over 4	280	=over 4
167		281
…		…
186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
187	$d	301	$d
188	} || "[unable to dump $_[0]: '$@']";	302	} || "[unable to dump $_[0]: '$@']";
189	}	303	}
190		304
191	use JSON::Syck (); # TODO# replace by JSON::PC once working
192
193	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
194		306
195	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
196		308
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
205		310
206	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
207		312
208	=cut	313	=cut
209		314
210	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	316
212	JSON::Syck::Dump $_[0]	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
		319
		320	=item cf::post_init { BLOCK }
		321
		322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		323	but I<before> the server starts ticking again.
		324
		325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
		327
		328	=cut
		329
		330	sub post_init(&) {
		331	push @POST_INIT, shift;
213	}	332	}
214		333
215	=item cf::lock_wait $string	334	=item cf::lock_wait $string
216		335
217	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
218		337
219	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
220		339
221	Wait until the given lock is available and then acquires it and returns	340	Wait until the given lock is available and then acquires it and returns
222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	341	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
223	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
224	returned.	343	returned.
225		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
226	Lock names should begin with a unique identifier (for example, cf::map::find	348	Lock names should begin with a unique identifier (for example, cf::map::find
227	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
228		350
229	=cut	351	=item $locked = cf::lock_active $string
230		352
231	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
232		358
233	sub lock_wait($) {	359	sub lock_wait($) {
234	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
235
236	# wait for lock, if any
237	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;
240	}
241	}	361	}
242		362
243	sub lock_acquire($) {	363	sub lock_acquire($) {
244	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
245		366
246	# wait, to be sure we are not locked	367	sub lock_active($) {
247	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
248
249	$LOCK{$key} = [];
250
251	Coro::guard {
252	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };
254	}
255	}	369	}
256		370
257	sub freeze_mainloop {	371	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	372	tick_inhibit_inc;
259		373
260	my $guard = Coro::guard { $TICK_WATCHER->start };	374	&Guard::guard (\&tick_inhibit_dec);
261	$TICK_WATCHER->stop;	375	}
262	$guard	376
		377	=item cf::periodic $interval, $cb
		378
		379	Like EV::periodic, but randomly selects a starting point so that the actions
		380	get spread over timer.
		381
		382	=cut
		383
		384	sub periodic($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
		435	}
		436	};
		437
		438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
263	}	450	}
264		451
265	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
266		453
267	Currently the same as Coro::async_pool, meaning you cannot use	454	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		459
273	BEGIN { *async = \&Coro::async_pool }	460	BEGIN { *async = \&Coro::async_pool }
274		461
275	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
276		463
277	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
278	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
280		468
281	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
282	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
283	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
284	fast or be very important.	472	fast or be very important.
…		…
287		475
288	sub sync_job(&) {	476	sub sync_job(&) {
289	my ($job) = @_;	477	my ($job) = @_;
290		478
291	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
292	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
294		484
295	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
296	# (but this is cancel-safe)	486
297	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
298		488
299	my $busy = 1;	489	my $busy = 1;
300	my @res;	490	my @res;
301		491
302	(async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
303	@res = eval { $job->() };	494	@res = eval { $job->() };
304	warn $@ if $@;	495	warn $@ if $@;
305	undef $busy;	496	undef $busy;
306	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
307		498
308	while ($busy) {	499	while ($busy) {
309	Coro::cede or Event::one_event;	500	if (Coro::nready) {
		501	Coro::cede_notself;
		502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
310	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
311		510
312	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
313	} else {	512	} else {
314	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
315		514
…		…
335	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
336		535
337	$coro	536	$coro
338	}	537	}
339		538
340	sub write_runtime {	539	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		540
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
344	or return;	542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
345		545
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	546	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		547
350	aio_fsync $fh	548	sub fork_call(&@) {
351	and return;	549	my ($cb, @args) = @_;
352		550
353	close $fh	551	# we seemingly have to make a local copy of the whole thing,
354	or return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
355		554
356	aio_rename "$runtime~", $runtime	555	my @res = Coro::Util::fork_eval {
357	and return;	556	reset_signals;
		557	&$cb
		558	}, @args;
358		559
		560	wantarray ? @res : $res[-1]
		561	}
		562
		563	=item $coin = coin_from_name $name
		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		585	$coin_alias{$_[0]}
		586	? cf::arch::find $coin_alias{$_[0]}
		587	: undef
		588	}
		589
		590	=item $value = cf::db_get $family => $key
		591
		592	Returns a single value from the environment database.
		593
		594	=item cf::db_put $family => $key => $value
		595
		596	Stores the given C<$value> in the family. It can currently store binary
		597	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		598
		599	=item $db = cf::db_table "name"
		600
		601	Create and/or open a new database table. The string must not be "db" and must be unique
		602	within each server.
		603
		604	=cut
		605
		606	sub db_table($) {
		607	my ($name) = @_;
		608	my $db = BDB::db_create $DB_ENV;
		609
		610	eval {
		611	$db->set_flags (BDB::CHKSUM);
		612
		613	utf8::encode $name;
		614	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		615	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		616	cf::cleanup "db_open(db): $!" if $!;
		617	};
		618	cf::cleanup "db_open(db): $@" if $@;
		619
		620	$db
		621	}
		622
		623	our $DB;
		624
		625	sub db_init {
		626	cf::sync_job {
		627	$DB ||= db_table "db";
		628	};
		629	}
		630
		631	sub db_get($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
359	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		643	BDB::dbreq_pri 4;
		644	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		645	}
		646
		647	=item cf::cache $id => [$paths...], $processversion => $process
		648
		649	Generic caching function that returns the value of the resource $id,
		650	caching and regenerating as required.
		651
		652	This function can block.
		653
		654	=cut
		655
		656	sub cache {
		657	my ($id, $src, $processversion, $process) = @_;
		658
		659	my $meta =
		660	join "\x00",
		661	$processversion,
		662	map {
		663	aio_stat $_
		664	and Carp::croak "$_: $!";
		665
		666	($_, (stat _)[7,9])
		667	} @$src;
		668
		669	my $dbmeta = db_get cache => "$id/meta";
		670	if ($dbmeta ne $meta) {
		671	# changed, we may need to process
		672
		673	my @data;
		674	my $md5;
		675
		676	for (0 .. $#$src) {
		677	0 <= aio_load $src->[$_], $data[$_]
		678	or Carp::croak "$src->[$_]: $!";
		679	}
		680
		681	# if processing is expensive, check
		682	# checksum first
		683	if (1) {
		684	$md5 =
		685	join "\x00",
		686	$processversion,
		687	map {
		688	cf::cede_to_tick;
		689	($src->[$_], Digest::MD5::md5_hex $data[$_])
		690	} 0.. $#$src;
		691
		692
		693	my $dbmd5 = db_get cache => "$id/md5";
		694	if ($dbmd5 eq $md5) {
		695	db_put cache => "$id/meta", $meta;
		696
		697	return db_get cache => "$id/data";
		698	}
		699	}
		700
		701	my $t1 = Time::HiRes::time;
		702	my $data = $process->(\@data);
		703	my $t2 = Time::HiRes::time;
		704
		705	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		706
		707	db_put cache => "$id/data", $data;
		708	db_put cache => "$id/md5" , $md5;
		709	db_put cache => "$id/meta", $meta;
		710
		711	return $data;
		712	}
		713
		714	db_get cache => "$id/data"
		715	}
		716
		717	=item cf::datalog type => key => value, ...
		718
		719	Log a datalog packet of the given type with the given key-value pairs.
		720
		721	=cut
		722
		723	sub datalog($@) {
		724	my ($type, %kv) = @_;
		725	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
360	}	726	}
361		727
362	=back	728	=back
363		729
364	=cut	730	=cut
365		731
366	#############################################################################	732	#############################################################################
367		733
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492
493	#############################################################################
494
495	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
496		735
497	Many objects in crossfire are so-called attachable objects. That means you can	736	Many objects in deliantra are so-called attachable objects. That means you can
498	attach callbacks/event handlers (a collection of which is called an "attachment")	737	attach callbacks/event handlers (a collection of which is called an "attachment")
499	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
500		739
501	In the following description, CLASS can be any of C<global>, C<object>	740	In the following description, CLASS can be any of C<global>, C<object>
502	C<player>, C<client> or C<map> (i.e. the attachable objects in	741	C<player>, C<client> or C<map> (i.e. the attachable objects in
503	crossfire+).	742	Deliantra).
504		743
505	=over 4	744	=over 4
506		745
507	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
508		747
…		…
552	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
553		792
554	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
555	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
556		795
557	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
558	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
559		798
560	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
561		800
562	=over 4	801	=over 4
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	861	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	862	our @CB_MAP = ();
624		863
625	my %attachment;	864	my %attachment;
626		865
		866	sub cf::attachable::thawer_merge {
		867	# simply override everything except _meta
		868	local $_[0]{_meta};
		869	%{$_[0]} = %{$_[1]};
		870	}
		871
627	sub _attach_cb($$$$) {	872	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	873	my ($registry, $event, $prio, $cb) = @_;
629		874
630	use sort 'stable';	875	use sort 'stable';
631		876
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
666		911
667	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		916
672	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	918	my $pkg = shift @arg;
674		919
675	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
705	}	950	}
706		951
707	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
708	} else {	953	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	955	}
711		956
712	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
713	}	958	}
714		959
…		…
716	if (ref $_[0]) {	961	if (ref $_[0]) {
717	_object_attach @_;	962	_object_attach @_;
718	} else {	963	} else {
719	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
720	}	965	}
		966	_recalc_want;
721	};	967	};
722		968
723	# all those should be optimised	969	# all those should be optimised
724	sub cf::attachable::detach {	970	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
729	reattach ($obj);	975	reattach ($obj);
730	} else {	976	} else {
731	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
732	}	978	}
		979	_recalc_want;
733	};	980	};
734		981
735	sub cf::attachable::attached {	982	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
737		984
…		…
752	";	999	";
753	die if $@;	1000	die if $@;
754	}	1001	}
755		1002
756	our $override;	1003	our $override;
757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1004	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
758		1005
759	sub override {	1006	sub override {
760	$override = 1;	1007	$override = 1;
761	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
762	}	1009	}
763		1010
764	sub do_invoke {	1011	sub do_invoke {
765	my $event = shift;	1012	my $event = shift;
766	my $callbacks = shift;	1013	my $callbacks = shift;
767		1014
768	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
769		1016
770	local $override;	1017	local $override;
771		1018
772	for (@$callbacks) {	1019	for (@$callbacks) {
773	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
782	}	1029	}
783		1030
784	0	1031	0
785	}	1032	}
786		1033
787	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
788		1035
789	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
790		1037
791	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
792		1039
793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1040	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
794	removed in future versions), and there is no public API to access override	1041	removed in future versions), and there is no public API to access override
795	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		1043
797	=back	1044	=back
798		1045
799	=cut	1046	=cut
800		1047
801	#############################################################################	1048	#############################################################################
802	# object support	1049	# object support
		1050
		1051	sub _object_equal($$);
		1052	sub _object_equal($$) {
		1053	my ($a, $b) = @_;
		1054
		1055	return 0 unless (ref $a) eq (ref $b);
		1056
		1057	if ("HASH" eq ref $a) {
		1058	my @ka = keys %$a;
		1059	my @kb = keys %$b;
		1060
		1061	return 0 if @ka != @kb;
		1062
		1063	for (0 .. $#ka) {
		1064	return 0 unless $ka[$_] eq $kb[$_];
		1065	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1066	}
		1067
		1068	} elsif ("ARRAY" eq ref $a) {
		1069
		1070	return 0 if @$a != @$b;
		1071
		1072	for (0 .. $#$a) {
		1073	return 0 unless _object_equal $a->[$_], $b->[$_];
		1074	}
		1075
		1076	} elsif ($a ne $b) {
		1077	return 0;
		1078	}
		1079
		1080	1
		1081	}
		1082
		1083	our $SLOW_MERGES;#d#
		1084	sub _can_merge {
		1085	my ($ob1, $ob2) = @_;
		1086
		1087	++$SLOW_MERGES;#d#
		1088
		1089	# we do the slow way here
		1090	return _object_equal $ob1, $ob2
		1091	}
803		1092
804	sub reattach {	1093	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	1095	my ($obj) = @_;
		1096
		1097	# no longer needed after getting rid of delete_package?
		1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		1099
808	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
809		1101
810	@$registry = ();	1102	@$registry = ();
811		1103
…		…
826	cf::attachable->attach (	1118	cf::attachable->attach (
827	prio => -1000000,	1119	prio => -1000000,
828	on_instantiate => sub {	1120	on_instantiate => sub {
829	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
830		1122
831	$data = from_json $data;	1123	$data = decode_json $data;
832		1124
833	for (@$data) {	1125	for (@$data) {
834	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
835		1127
836	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
852	sub object_freezer_save {	1144	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
854		1146
855	sync_job {	1147	sync_job {
856	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
859		1152
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	1157	aio_close $fh;
865		1158
866	if (@$objs) {	1159	if (@$objs) {
867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1160	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
868	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	1165	aio_close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
874	}	1167	}
875	} else {	1168	} else {
876	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
877	}	1170	}
878		1171
879	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
880	} else {	1176	} else {
881	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
882	}	1178	}
883	} else {	1179	} else {
884	aio_unlink $filename;	1180	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
886	}	1182	}
887	}	1183	};
888	}	1184	}
889		1185
890	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
892		1188
…		…
904	or return;	1200	or return;
905		1201
906	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
908	or return;	1204	or return;
		1205
909	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
910	}	1208	}
911		1209
		1210	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
914	return ($data, $av);	1214	($data, $av)
915	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
916		1222
917	#############################################################################	1223	#############################################################################
918	# command handling &c	1224	# command handling &c
919		1225
920	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1240	}
935		1241
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1243
938	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
939		1249
940	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
941	called.	1251	called.
942		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
943	=cut	1264	=cut
944		1265
945	sub register_extcmd {	1266	sub register_extcmd {
946	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
947		1268
948	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
949	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
950		1279
951	cf::player->attach (	1280	cf::player->attach (
952	on_command => sub {	1281	on_command => sub {
953	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
954		1283
…		…
962	cf::override;	1291	cf::override;
963	},	1292	},
964	on_extcmd => sub {	1293	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
966		1295
967	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1297
969	if (ref $msg) {	1298	if (ref $msg) {
		1299	my ($type, $reply, @payload) =
		1300	"ARRAY" eq ref $msg
		1301	? @$msg
		1302	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1303
		1304	my @reply;
		1305
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
975	} else {	1313	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1315	}
978		1316
979	cf::override;	1317	cf::override;
980	},	1318	},
981	);	1319	);
982		1320
		1321	# "readahead" all extensions
983	sub load_extension {	1322	sub cache_extensions {
984	my ($path) = @_;	1323	my $grp = IO::AIO::aio_group;
985		1324
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
987	my $base = $1;	1326	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;	1328	}
990	$pkg = "ext::$pkg";	1329	};
991		1330
992	warn "loading '$path' into '$pkg'\n";	1331	$grp
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}	1332	}
1009		1333
1010	sub load_extensions {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
1011	for my $ext (<$LIBDIR/*.ext>) {	1338	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1339	next unless -r $path;
1013	eval {	1340
1014	load_extension $ext;	1341	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1342	my $base = $1;
		1343	my $pkg = $1;
		1344	$pkg =~ s/[^[:word:]]/_/g;
		1345	$pkg = "ext::$pkg";
		1346
		1347	open my $fh, "<:utf8", $path
		1348	or die "$path: $!";
		1349
		1350	my $source = do { local $/; <$fh> };
		1351
		1352	my %ext = (
		1353	path => $path,
		1354	base => $base,
		1355	pkg => $pkg,
		1356	);
		1357
		1358	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1359	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1360
		1361	$ext{source} =
		1362	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1363	. "#line 1 \"$path\"\n{\n"
		1364	. $source
		1365	. "\n};\n1";
		1366
		1367	$todo{$base} = \%ext;
		1368	}
		1369
		1370	my %done;
		1371	while (%todo) {
		1372	my $progress;
		1373
		1374	while (my ($k, $v) = each %todo) {
		1375	for (split /,\s*/, $v->{meta}{depends}) {
		1376	goto skip
		1377	unless exists $done{$_};
		1378	}
		1379
		1380	warn "... loading '$k' into '$v->{pkg}'\n";
		1381
		1382	unless (eval $v->{source}) {
		1383	my $msg = $@ ? "$v->{path}: $@\n"
		1384	: "$v->{base}: extension inactive.\n";
		1385
		1386	if (exists $v->{meta}{mandatory}) {
		1387	warn $msg;
		1388	cf::cleanup "mandatory extension failed to load, exiting.";
		1389	}
		1390
		1391	warn $msg;
		1392	}
		1393
		1394	$done{$k} = delete $todo{$k};
		1395	push @EXTS, $v->{pkg};
		1396	$progress = 1;
1015	1	1397	}
1016	} or warn "$ext not loaded: $@";	1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
1017	}	1403	};
1018	}	1404	}
1019		1405
1020	#############################################################################	1406	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1407
1023	*cf::mapsupport::on_clean = sub {	1408	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1409
1036	=head2 CORE EXTENSIONS	1410	=head2 CORE EXTENSIONS
1037		1411
1038	Functions and methods that extend core crossfire objects.	1412	Functions and methods that extend core deliantra objects.
1039		1413
1040	=cut	1414	=cut
1041		1415
1042	package cf::player;	1416	package cf::player;
1043		1417
…		…
1045		1419
1046	=head3 cf::player	1420	=head3 cf::player
1047		1421
1048	=over 4	1422	=over 4
1049		1423
		1424	=item cf::player::num_playing
		1425
		1426	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1427
		1428	=cut
		1429
		1430	sub num_playing {
		1431	scalar grep
		1432	$_->ob->map
		1433	&& !$_->hidden
		1434	&& !$_->ob->flag (cf::FLAG_WIZ),
		1435	cf::player::list
		1436	}
		1437
1050	=item cf::player::find $login	1438	=item cf::player::find $login
1051		1439
1052	Returns the given player object, loading it if necessary (might block).	1440	Returns the given player object, loading it if necessary (might block).
1053		1441
1054	=cut	1442	=cut
1055		1443
1056	sub playerdir($) {	1444	sub playerdir($) {
1057	cf::localdir	1445	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1447	}
1063		1448
1064	sub path($) {	1449	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1451
1067	(playerdir $login) . "/$login.pl"	1452	(playerdir $login) . "/playerdata"
1068	}	1453	}
1069		1454
1070	sub find_active($) {	1455	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1456	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1457	and $cf::PLAYER{$_[0]}->active
…		…
1075		1460
1076	sub exists($) {	1461	sub exists($) {
1077	my ($login) = @_;	1462	my ($login) = @_;
1078		1463
1079	$cf::PLAYER{$login}	1464	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1465	or !aio_stat path $login
1081	}	1466	}
1082		1467
1083	sub find($) {	1468	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1469	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1470	my $login = $_[0];
1086		1471
1087	my $guard = cf::lock_acquire "user_find:$login";	1472	my $guard = cf::lock_acquire "user_find:$login";
1088		1473
1089	$cf::PLAYER{$_[0]} || do {	1474	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1475	# rename old playerfiles to new ones
		1476	#TODO: remove when no longer required
		1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1480	aio_unlink +(playerdir $login) . "/$login.pl";
		1481
		1482	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1483	or return;
		1484
		1485	my $pl = cf::player::load_pl $f
		1486	or return;
		1487
		1488	local $cf::PLAYER_LOADING{$login} = $pl;
		1489	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1490	$cf::PLAYER{$login} = $pl
1093	}	1491	}
1094	}	1492	}
1095	}	1493	}
1096		1494
…		…
1105	return if $pl->{deny_save};	1503	return if $pl->{deny_save};
1106		1504
1107	aio_mkdir playerdir $pl, 0770;	1505	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1506	$pl->{last_save} = $cf::RUNTIME;
1109		1507
		1508	cf::get_slot 0.01;
		1509
1110	$pl->save_pl ($path);	1510	$pl->save_pl ($path);
1111	Coro::cede;	1511	cf::cede_to_tick;
1112	}	1512	}
1113		1513
1114	sub new($) {	1514	sub new($) {
1115	my ($login) = @_;	1515	my ($login) = @_;
1116		1516
…		…
1122	$cf::PLAYER{$login} = $self;	1522	$cf::PLAYER{$login} = $self;
1123		1523
1124	$self	1524	$self
1125	}	1525	}
1126		1526
		1527	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1528
		1529	=cut
		1530
		1531	sub send_msg {
		1532	my $ns = shift->ns
		1533	or return;
		1534	$ns->send_msg (@_);
		1535	}
		1536
1127	=item $pl->quit_character	1537	=item $pl->quit_character
1128		1538
1129	Nukes the player without looking back. If logged in, the connection will	1539	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1540	be destroyed. May block for a long time.
1131		1541
1132	=cut	1542	=cut
1133		1543
1134	sub quit_character {	1544	sub quit_character {
1135	my ($pl) = @_;	1545	my ($pl) = @_;
1136		1546
		1547	my $name = $pl->ob->name;
		1548
1137	$pl->{deny_save} = 1;	1549	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1550	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1139		1551
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1141	$pl->deactivate;	1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
1142	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1143	$pl->ns->destroy if $pl->ns;	1557	$pl->ns->destroy if $pl->ns;
1144		1558
1145	my $path = playerdir $pl;	1559	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1560	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1561	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1562	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1563	$pl->destroy;
		1564
		1565	my $prefix = qr<^~\Q$name\E/>;
		1566
		1567	# nuke player maps
		1568	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1569
1150	IO::AIO::aio_rmtree $temp;	1570	IO::AIO::aio_rmtree $temp;
		1571	}
		1572
		1573	=item $pl->kick
		1574
		1575	Kicks a player out of the game. This destroys the connection.
		1576
		1577	=cut
		1578
		1579	sub kick {
		1580	my ($pl, $kicker) = @_;
		1581
		1582	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1583	$pl->killer ("kicked");
		1584	$pl->ns->destroy;
1151	}	1585	}
1152		1586
1153	=item cf::player::list_logins	1587	=item cf::player::list_logins
1154		1588
1155	Returns am arrayref of all valid playernames in the system, can take a	1589	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1590	while and may block, so not sync_job-capable, ever.
1157		1591
1158	=cut	1592	=cut
1159		1593
1160	sub list_logins {	1594	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1595	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1596	or return [];
1163		1597
1164	my @logins;	1598	my @logins;
1165		1599
1166	for my $login (@$dirs) {	1600	for my $login (@$dirs) {
		1601	my $path = path $login;
		1602
		1603	# a .pst is a dead give-away for a valid player
		1604	# if no pst file found, open and chekc for blocked users
		1605	if (aio_stat "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1607	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
1170		1610
1171	utf8::decode $login;	1611	utf8::decode $login;
1172	push @logins, $login;	1612	push @logins, $login;
1173	}	1613	}
1174		1614
1175	\@logins	1615	\@logins
1176	}	1616	}
1177		1617
1178	=item $player->maps	1618	=item $player->maps
1179		1619
1180	Returns an arrayref of cf::path's of all maps that are private for this	1620	Returns an arrayref of map paths that are private for this
1181	player. May block.	1621	player. May block.
1182		1622
1183	=cut	1623	=cut
1184		1624
1185	sub maps($) {	1625	sub maps($) {
1186	my ($pl) = @_;	1626	my ($pl) = @_;
		1627
		1628	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1629
1188	my $files = aio_readdir playerdir $pl	1630	my $files = aio_readdir playerdir $pl
1189	or return;	1631	or return;
1190		1632
1191	my @paths;	1633	my @paths;
…		…
1193	for (@$files) {	1635	for (@$files) {
1194	utf8::decode $_;	1636	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1637	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1638	next unless /^$PATH_SEP/o;
1197		1639
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1640	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1641	}
1200		1642
1201	\@paths	1643	\@paths
1202	}	1644	}
1203		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1650	=item $player->ext_reply ($msgid, @msg)
1205		1651
1206	Sends an ext reply to the player.	1652	Sends an ext reply to the player.
1207		1653
1208	=cut	1654	=cut
1209		1655
1210	sub ext_reply($$$%) {	1656	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1657	my ($self, $id, @msg) = @_;
1212		1658
1213	$msg{msgid} = $id;	1659	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1660	}
1217		1661
1218	package cf;	1662	=item $player->ext_msg ($type, @msg)
		1663
		1664	Sends an ext event to the client.
		1665
		1666	=cut
		1667
		1668	sub ext_msg($$@) {
		1669	my ($self, $type, @msg) = @_;
		1670
		1671	$self->ns->ext_msg ($type, @msg);
		1672	}
		1673
		1674	=head3 cf::region
		1675
		1676	=over 4
		1677
		1678	=cut
		1679
		1680	package cf::region;
		1681
		1682	=item cf::region::find_by_path $path
		1683
		1684	Tries to decuce the likely region for a map knowing only its path.
		1685
		1686	=cut
		1687
		1688	sub find_by_path($) {
		1689	my ($path) = @_;
		1690
		1691	my ($match, $specificity);
		1692
		1693	for my $region (list) {
		1694	if ($region->{match} && $path =~ $region->{match}) {
		1695	($match, $specificity) = ($region, $region->specificity)
		1696	if $region->specificity > $specificity;
		1697	}
		1698	}
		1699
		1700	$match
		1701	}
1219		1702
1220	=back	1703	=back
1221
1222		1704
1223	=head3 cf::map	1705	=head3 cf::map
1224		1706
1225	=over 4	1707	=over 4
1226		1708
…		…
1229	package cf::map;	1711	package cf::map;
1230		1712
1231	use Fcntl;	1713	use Fcntl;
1232	use Coro::AIO;	1714	use Coro::AIO;
1233		1715
		1716	use overload
		1717	'""' => \&as_string,
		1718	fallback => 1;
		1719
1234	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1236		1722
1237	sub generate_random_map {	1723	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1239		1727
1240	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1729	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
1254	}	1742	}
1255		1743
1256	# and all this just because we cannot iterate over	1744	=item cf::map->register ($regex, $prio)
1257	# all maps in C++...
1258	sub change_all_map_light {
1259	my ($change) = @_;
1260		1745
1261	$_->change_map_light ($change)	1746	Register a handler for the map path matching the given regex at the
1262	for grep $_->outdoor, values %cf::MAP;	1747	givne priority (higher is better, built-in handlers have priority 0, the
1263	}	1748	default).
1264		1749
1265	sub try_load_header($) {	1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
1266	my ($path) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1868	"$UNIQUEDIR/$path"
		1869	}
		1870
		1871	sub decay_objects {
		1872	my ($self) = @_;
		1873
		1874	return if $self->{deny_reset};
		1875
		1876	$self->do_decay_objects;
		1877	}
		1878
		1879	sub unlink_save {
		1880	my ($self) = @_;
		1881
		1882	utf8::encode (my $save = $self->save_path);
		1883	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1884	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1885	}
		1886
		1887	sub load_header_from($) {
		1888	my ($self, $path) = @_;
1267		1889
1268	utf8::encode $path;	1890	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1270	or return;	1892	or return;
1271		1893
1272	my $map = cf::map::new	1894	$self->_load_header ($f)
1273	or return;	1895	or return;
1274		1896
1275	# for better error messages only, will be overwritten	1897	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	1898	$f->resolve_delayed_derefs;
1277		1899
1278	$map->load_header ($path)	1900	$self->{load_path} = $path;
		1901
		1902	1
		1903	}
		1904
		1905	sub load_header_orig {
		1906	my ($self) = @_;
		1907
		1908	$self->load_header_from ($self->load_path)
		1909	}
		1910
		1911	sub load_header_temp {
		1912	my ($self) = @_;
		1913
		1914	$self->load_header_from ($self->save_path)
		1915	}
		1916
		1917	sub prepare_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->last_access ((delete $self->{last_access})
		1921	|| $cf::RUNTIME); #d#
		1922	# safety
		1923	$self->{instantiate_time} = $cf::RUNTIME
		1924	if $self->{instantiate_time} > $cf::RUNTIME;
		1925	}
		1926
		1927	sub prepare_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->{load_original} = 1;
		1931	$self->{instantiate_time} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933	$self->instantiate;
		1934	}
		1935
		1936	sub load_header {
		1937	my ($self) = @_;
		1938
		1939	if ($self->load_header_temp) {
		1940	$self->prepare_temp;
		1941	} else {
		1942	$self->load_header_orig
1279	or return;	1943	or return;
		1944	$self->prepare_orig;
		1945	}
1280		1946
1281	$map->{load_path} = $path;	1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
1282		1949
1283	$map	1950	$self->default_region (cf::region::find_by_path $self->{path})
		1951	unless $self->default_region;
		1952
		1953	1
1284	}	1954	}
1285		1955
1286	sub find;	1956	sub find;
1287	sub find {	1957	sub find {
1288	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1289		1959
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1961
1295	cf::lock_wait "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1296
1297	$cf::MAP{$key} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1299		1964
1300	# do it the slow way	1965	$cf::MAP{$path} || do {
1301	my $map = try_load_header $path->save_path;	1966	my $map = new_from_path cf::map $path
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	1967	or return;
1319		1968
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1332		1970
1333	Coro::cede;	1971	$map->load_header
		1972	or return;
1334		1973
1335	if ($map->should_reset) {	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1975	# doing this can freeze the server in a sync job, obviously
		1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1336	$map->reset;	1979	$map->reset;
1337	undef $guard;
1338	$map = find $path	1980	return find $path;
1339	or return;
1340	}	1981	}
1341		1982
1342	$cf::MAP{$key} = $map	1983	$cf::MAP{$path} = $map
1343	}	1984	}
1344	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1345		1989
1346	sub load {	1990	sub load {
1347	my ($self) = @_;	1991	my ($self) = @_;
1348		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1349	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1998	my $guard = cf::lock_acquire "map_data:$path";
1351		1999
		2000	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		2002
1354	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1355		2004
1356	$self->alloc;	2005	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	2006
		2007	$self->pre_load;
		2008	cf::cede_to_tick;
		2009
		2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1358	or return;	2013	or return;
1359		2014
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1361	if delete $self->{load_original};	2016	if delete $self->{load_original};
1362		2017
1363	if (my $uniq = $path->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	2019	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	2022	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1368	}	2026	}
1369	}	2027	}
1370		2028
1371	Coro::cede;	2029	$f->resolve_delayed_derefs;
1372		2030
		2031	cf::cede_to_tick;
1373	# now do the right thing for maps	2032	# now do the right thing for maps
1374	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2035	unless $self->difficulty;
		2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1386	$self->activate;	2043	$self->activate;
1387	}	2044	}
1388		2045
1389	Coro::cede;	2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
1390		2048
1391	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
		2050	}
		2051
		2052	$self->post_load;
		2053	}
		2054
		2055	sub customise_for {
		2056	my ($self, $ob) = @_;
		2057
		2058	return find "~" . $ob->name . "/" . $self->{path}
		2059	if $self->per_player;
		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
		2064	$self
1392	}	2065	}
1393		2066
1394	# find and load all maps in the 3x3 area around a map	2067	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	2068	sub load_neighbours {
1396	my ($map) = @_;	2069	my ($map) = @_;
1397		2070
1398	my @diag; # diagonal neighbours	2071	my @neigh; # diagonal neighbours
1399		2072
1400	for (0 .. 3) {	2073	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	2074	my $neigh = $map->tile_path ($_)
1402	or next;	2075	or next;
1403	$neigh = find $neigh, $map	2076	$neigh = find $neigh, $map
1404	or next;	2077	or next;
1405	$neigh->load;	2078	$neigh->load;
1406		2079
		2080	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2083	}
1410		2084
1411	for (@diag) {	2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2087	my $neigh = find $path, $origin
1413	or next;	2088	or next;
1414	$neigh->load;	2089	$neigh->load;
1415	}	2090	}
1416	}	2091	}
1417		2092
…		…
1422	}	2097	}
1423		2098
1424	sub do_load_sync {	2099	sub do_load_sync {
1425	my ($map) = @_;	2100	my ($map) = @_;
1426		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1427	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
1428	}	2106	}
1429		2107
1430	our %MAP_PREFETCH;	2108	our %MAP_PREFETCH;
		2109	our $MAP_PREFETCHER = undef;
		2110
		2111	sub find_async {
		2112	my ($path, $origin, $load) = @_;
		2113
		2114	$path = normalise $path, $origin && $origin->{path};
		2115
		2116	if (my $map = $cf::MAP{$path}) {
		2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2118	}
		2119
		2120	$MAP_PREFETCH{$path} |= $load;
		2121
1431	our $MAP_PREFETCHER = Coro::async {	2122	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2123	$Coro::current->{desc} = "map prefetcher";
		2124
1433	while (%MAP_PREFETCH) {	2125	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2126	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2127	if (my $map = find $k) {
		2128	$map->load if $v;
		2129	}
		2130
1436	my $path = delete $MAP_PREFETCH{$key};	2131	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2132	}
1442	Coro::schedule;	2133	}
		2134	undef $MAP_PREFETCHER;
1443	}	2135	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2136	$MAP_PREFETCHER->prio (6);
1458		2137
1459	()	2138	()
1460	}	2139	}
1461		2140
1462	sub save {	2141	sub save {
1463	my ($self) = @_;	2142	my ($self) = @_;
1464		2143
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2145
1467	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1468		2147
1469	return unless $self->dirty;	2148	return unless $self->dirty;
1470		2149
1471	my $save = $self->{path}->save_path; utf8::encode $save;	2150	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2151	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		2152
1474	$self->{load_path} = $save;	2153	$self->{load_path} = $save;
1475		2154
1476	return if $self->{deny_save};	2155	return if $self->{deny_save};
1477		2156
1478	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1479		2158
1480	cf::async {	2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
1481	$_->contr->save for $self->players;	2161	$_->contr->save for $self->players;
1482	};	2162	};
1483		2163
		2164	cf::get_slot 0.02;
		2165
1484	if ($uniq) {	2166	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	2169	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2170	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	2171	}
1490	}	2172	}
1491		2173
1492	sub swap_out {	2174	sub swap_out {
1493	my ($self) = @_;	2175	my ($self) = @_;
1494		2176
1495	# save first because save cedes	2177	# save first because save cedes
1496	$self->save;	2178	$self->save;
1497		2179
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2181
1500	return if $self->players;	2182	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1502	return if $self->{deny_save};	2184	return if $self->{deny_save};
1503		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1504	$self->clear;	2190	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2191	}
1507		2192
1508	sub reset_at {	2193	sub reset_at {
1509	my ($self) = @_;	2194	my ($self) = @_;
1510		2195
1511	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1514		2198
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2201
…		…
1522	my ($self) = @_;	2206	my ($self) = @_;
1523		2207
1524	$self->reset_at <= $cf::RUNTIME	2208	$self->reset_at <= $cf::RUNTIME
1525	}	2209	}
1526		2210
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2211	sub reset {
1549	my ($self) = @_;	2212	my ($self) = @_;
1550		2213
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2215
1553	return if $self->players;	2216	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2217
1556	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	# need to save uniques path
		2223	unless ($self->{deny_save}) {
		2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2225
		2226	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2227	if $uniq;
		2228	}
1557		2229
1558	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1559		2231
		2232	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2233	$_->clear_links_to ($self) for values %cf::MAP;
		2234	$self->clear;
1561		2235
1562	$self->unlink_save;	2236	$self->unlink_save;
1563	$self->destroy;	2237	$self->destroy;
1564	}	2238	}
1565		2239
1566	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1567		2241
1568	sub nuke {	2242	sub nuke {
1569	my ($self) = @_;	2243	my ($self) = @_;
1570		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
		2248	delete $cf::MAP{$self->path};
		2249
		2250	$self->unlink_save;
		2251
		2252	bless $self, "cf::map";
		2253	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2257
		2258	$cf::MAP{$self->path} = $self;
		2259	}
		2260
1574	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
1575	}	2262	}
1576		2263
1577	sub customise_for {	2264	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2265
1580	if ($map->per_player) {	2266	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
1582	}	2272	[
		2273	map {
		2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
		2280	}
1583		2281
1584	$map	2282	=item $maps = cf::map::random_maps
		2283
		2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
		2286
		2287	=cut
		2288
		2289	sub random_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise "?random/$_"
		2295	: ()
		2296	} @{ aio_readdir $RANDOMDIR or [] }
		2297	]
1585	}	2298	}
1586		2299
1587	=item cf::map::unique_maps	2300	=item cf::map::unique_maps
1588		2301
1589	Returns an arrayref of cf::path's of all shared maps that have	2302	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2303	instantiated unique items. May block.
1591		2304
1592	=cut	2305	=cut
1593		2306
1594	sub unique_maps() {	2307	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2308	[
1596	or return;	2309	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2310	utf8::decode $_;
1602	next if /\.pst$/;	2311	s/\.map$//; # TODO future compatibility hack
1603	next unless /^$PATH_SEP/o;	2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1604		2313	? ()
1605	push @paths, new cf::path $_;	2314	: normalise $_
		2315	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2316	]
1607
1608	\@paths
1609	}	2317	}
1610
1611	package cf;
1612		2318
1613	=back	2319	=back
1614		2320
1615	=head3 cf::object	2321	=head3 cf::object
1616		2322
…		…
1620		2326
1621	=over 4	2327	=over 4
1622		2328
1623	=item $ob->inv_recursive	2329	=item $ob->inv_recursive
1624		2330
1625	Returns the inventory of the object _and_ their inventories, recursively.	2331	Returns the inventory of the object I<and> their inventories, recursively,
		2332	but I<not> the object itself.
1626		2333
1627	=cut	2334	=cut
1628		2335
1629	sub inv_recursive_;	2336	sub inv_recursive_;
1630	sub inv_recursive_ {	2337	sub inv_recursive_ {
…		…
1633		2340
1634	sub inv_recursive {	2341	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2342	inv_recursive_ inv $_[0]
1636	}	2343	}
1637		2344
		2345	=item $ref = $ob->ref
		2346
		2347	Creates and returns a persistent reference to an object that can be stored as a string.
		2348
		2349	=item $ob = cf::object::deref ($refstring)
		2350
		2351	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2352	even if the object actually exists. May block.
		2353
		2354	=cut
		2355
		2356	sub deref {
		2357	my ($ref) = @_;
		2358
		2359	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2360	my ($uuid, $name) = ($1, $2);
		2361	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2362	or return;
		2363	$pl->ob->uuid eq $uuid
		2364	or return;
		2365
		2366	$pl->ob
		2367	} else {
		2368	warn "$ref: cannot resolve object reference\n";
		2369	undef
		2370	}
		2371	}
		2372
1638	package cf;	2373	package cf;
1639		2374
1640	=back	2375	=back
1641		2376
1642	=head3 cf::object::player	2377	=head3 cf::object::player
…		…
1648	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2383	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1649	can be C<undef>. Does the right thing when the player is currently in a	2384	can be C<undef>. Does the right thing when the player is currently in a
1650	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1651		2386
1652	=cut	2387	=cut
		2388
		2389	our $SAY_CHANNEL = {
		2390	id => "say",
		2391	title => "Map",
		2392	reply => "say ",
		2393	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2394	};
		2395
		2396	our $CHAT_CHANNEL = {
		2397	id => "chat",
		2398	title => "Chat",
		2399	reply => "chat ",
		2400	tooltip => "Player chat and shouts, global to the server.",
		2401	};
1653		2402
1654	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1655	# with dialog boxes.	2404	# with dialog boxes.
1656	#TODO: the first argument must go, split into a $npc->reply_to ( method	2405	#TODO: the first argument must go, split into a $npc->reply_to ( method
1657	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1659		2408
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2410
1662	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1664	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1667	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1668	}	2436	}
1669		2437
1670	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1671		2439
1672	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1685		2453
1686	=item $player_object->enter_link	2454	=item $player_object->enter_link
1687		2455
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2457
1690	The player should be reaosnably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time (e.g.
1691	I<MUST> call C<leave_link> as soon as possible, though.	2459	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2460	though, as the palyer cannot control the character while it is on the link
		2461	map.
		2462
		2463	Will never block.
1692		2464
1693	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1694		2466
1695	Moves the player out of the specila link map onto the given map. If the	2467	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2468	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2469	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2470	fails, to the emergency map position.
1699		2471
1700	Might block.	2472	Might block.
1701		2473
1702	=cut	2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($LINK_MAP) {
		2478	$LINK_MAP = cf::map::find "{link}"
		2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2480	$LINK_MAP->load;
		2481	}
		2482
		2483	$LINK_MAP
		2484	}
1703		2485
1704	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2487	my ($self) = @_;
1706		2488
1707	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1708		2490
1709	return if $self->map == $LINK_MAP;	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2492
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1713		2495
1714	$self->enter_map ($LINK_MAP, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2497	}
1716		2498
1717	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1719		2503
1720	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1721		2505
1722	unless ($map) {	2506	unless ($map) {
1723	# restore original map position	2507	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1740		2524
1741	$map->load;	2525	$map->load;
1742	$map->load_diag;	2526	$map->load_neighbours;
1743		2527
1744	return unless $self->contr->active;	2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1745	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1747	}	2534	}
1748		2535
1749	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2537
1753	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1757	};	2542	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2543
1763	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1764	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780		2546
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2547	=cut
		2548
		2549	our $GOTOGEN;
1784		2550
1785	sub cf::object::player::goto {	2551	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2552	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2553
1788	$path = new cf::path $path;	2554	# do generation counting so two concurrent goto's will be executed in-order
		2555	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2556
1790	$self->enter_link;	2557	$self->enter_link;
1791		2558
1792	(async {	2559	(async {
1793	my $map = cf::map::find $path->as_string;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
		2561
		2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1795		2586	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
1800		2590
		2591	$map
		2592	};
		2593
		2594	if ($@) {
		2595	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	LOG llevError | logBacktrace, Carp::longmess $@;
		2597	}
		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1802	})->prio (1);	2605	})->prio (1);
1803	}	2606	}
1804		2607
1805	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1806		2609
…		…
1808		2611
1809	sub parse_random_map_params {	2612	sub parse_random_map_params {
1810	my ($spec) = @_;	2613	my ($spec) = @_;
1811		2614
1812	my $rmp = { # defaults	2615	my $rmp = { # defaults
1813	xsize => 10,	2616	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2617	ysize => (cf::rndm 15, 40),
		2618	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2619	#layout => string,
1815	};	2620	};
1816		2621
1817	for (split /\n/, $spec) {	2622	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2623	my ($k, $v) = split /\s+/, $_, 2;
1819		2624
…		…
1831	# that depends on the exit object	2636	# that depends on the exit object
1832		2637
1833	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1834		2639
1835	if ($exit->map) {	2640	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1840	}	2647	}
1841		2648
1842	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1843		2650
1844	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1845	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
		2653	my $meta = "$RANDOMDIR/$md5.meta";
1846		2654
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
		2657	undef $fh;
		2658	aio_rename "$meta~", $meta;
1849		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1850	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1852	}	2666	}
1853	}	2667	}
1854		2668
1855	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
…		…
1858	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1859		2673
1860	$self->enter_link;	2674	$self->enter_link;
1861		2675
1862	(async {	2676	(async {
1863	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
1864	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1865	prepare_random_map $exit	2686	prepare_random_map $exit
1866	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1867		2689
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1870		2693
		2694	$self->goto ($map, $x, $y);
		2695
		2696	# if exit is damned, update players death & WoR home-position
		2697	$self->contr->savebed ($map, $x, $y)
		2698	if $exit->flag (cf::FLAG_DAMNED);
		2699
1871	1;	2700	1
1872	}) {	2701	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1874	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2706
1878	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2708	$self->leave_link;
1880	}	2709	}
1881	})->prio (1);	2710	})->prio (1);
…		…
1894		2723
1895	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1897		2726
1898	utf8::encode $text;	2727	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2729	}
1901		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/statistics" => {
		2779	id => "infobox",
		2780	title => "Statistics",
		2781	reply => undef,
		2782	tooltip => "Shows your primary statistics",
		2783	},
		2784	"c/skills" => {
		2785	id => "infobox",
		2786	title => "Skills",
		2787	reply => undef,
		2788	tooltip => "Shows your experience per skill and item power",
		2789	},
		2790	"c/resistances" => {
		2791	id => "infobox",
		2792	title => "Resistances",
		2793	reply => undef,
		2794	tooltip => "Shows your resistances",
		2795	},
		2796	"c/pets" => {
		2797	id => "infobox",
		2798	title => "Pets",
		2799	reply => undef,
		2800	tooltip => "Shows information abotu your pets/a specific pet",
		2801	},
		2802	"c/uptime" => {
		2803	id => "infobox",
		2804	title => "Uptime",
		2805	reply => undef,
		2806	tooltip => "How long the server has been running since last restart",
		2807	},
		2808	"c/mapinfo" => {
		2809	id => "infobox",
		2810	title => "Map Info",
		2811	reply => undef,
		2812	tooltip => "Information related to the maps",
		2813	},
		2814	"c/party" => {
		2815	id => "party",
		2816	title => "Party",
		2817	reply => "gsay ",
		2818	tooltip => "Messages and chat related to your party",
		2819	},
		2820	"c/death" => {
		2821	id => "death",
		2822	title => "Death",
		2823	reply => undef,
		2824	tooltip => "Reason for and more info about your most recent death",
		2825	},
		2826	"c/say" => $SAY_CHANNEL,
		2827	"c/chat" => $CHAT_CHANNEL,
		2828	);
		2829
		2830	sub cf::client::send_msg {
		2831	my ($self, $channel, $msg, $color, @extra) = @_;
		2832
		2833	$msg = $self->pl->expand_cfpod ($msg)
		2834	unless $color & cf::NDI_VERBATIM;
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel);
		2843	$channel = $channel->{id};
		2844
		2845	} elsif (ref $channel) {
		2846	# send meta info to client, if not yet sent
		2847	unless (exists $self->{channel}{$channel->{id}}) {
		2848	$self->{channel}{$channel->{id}} = $channel;
		2849	$self->ext_msg (channel_info => $channel);
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	# default colour, mask it out
		2858	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2859	if $color & cf::NDI_DEF;
		2860
		2861	my $pkt = "msg "
		2862	. $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2864	);
		2865
		2866	# try lzf for large packets
		2867	$pkt = "lzf " . Compress::LZF::compress $pkt
		2868	if 1024 <= length $pkt and $self->{can_lzf};
		2869
		2870	# split very large packets
		2871	if (8192 < length $pkt and $self->{can_lzf}) {
		2872	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2873	$pkt = "frag";
		2874	}
		2875
		2876	$self->send_packet ($pkt);
		2877	}
		2878
		2879	=item $client->ext_msg ($type, @msg)
		2880
		2881	Sends an ext event to the client.
		2882
		2883	=cut
		2884
		2885	sub cf::client::ext_msg($$@) {
		2886	my ($self, $type, @msg) = @_;
		2887
		2888	if ($self->extcmd == 2) {
		2889	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2890	} elsif ($self->extcmd == 1) { # TODO: remove
		2891	push @msg, msgtype => "event_$type";
		2892	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2893	}
		2894	}
		2895
		2896	=item $client->ext_reply ($msgid, @msg)
		2897
		2898	Sends an ext reply to the client.
		2899
		2900	=cut
		2901
		2902	sub cf::client::ext_reply($$@) {
		2903	my ($self, $id, @msg) = @_;
		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2907	} elsif ($self->extcmd == 1) {
		2908	#TODO: version 1, remove
		2909	unshift @msg, msgtype => "reply", msgid => $id;
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
1902		2913
1903	=item $success = $client->query ($flags, "text", \&cb)	2914	=item $success = $client->query ($flags, "text", \&cb)
1904		2915
1905	Queues a query to the client, calling the given callback with	2916	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		2919
1909	Queries can fail, so check the return code. Or don't, as queries will become	2920	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	2921	become reliable at some point in the future.
1911		2922
1912	=cut	2923	=cut
1913		2924
1914	sub cf::client::query {	2925	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	2926	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	2934	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		2936
1926	$self->send_packet ($self->{query_queue}[0][0])	2937	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	2938	if @{ $self->{query_queue} } == 1;
		2939
		2940	1
1928	}	2941	}
1929		2942
1930	cf::client->attach (	2943	cf::client->attach (
		2944	on_connect => sub {
		2945	my ($ns) = @_;
		2946
		2947	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2948	},
1931	on_reply => sub {	2949	on_reply => sub {
1932	my ($ns, $msg) = @_;	2950	my ($ns, $msg) = @_;
1933		2951
1934	# this weird shuffling is so that direct followup queries	2952	# this weird shuffling is so that direct followup queries
1935	# get handled first	2953	# get handled first
1936	my $queue = delete $ns->{query_queue}	2954	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	2955	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		2956
1939	(shift @$queue)->[1]->($msg);	2957	(shift @$queue)->[1]->($msg);
		2958	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2959
1941	push @{ $ns->{query_queue} }, @$queue;	2960	push @{ $ns->{query_queue} }, @$queue;
1942		2961
1943	if (@{ $ns->{query_queue} } == @$queue) {	2962	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2963	if (@$queue) {
…		…
1946	} else {	2965	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2966	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	2967	}
1949	}	2968	}
1950	},	2969	},
		2970	on_exticmd => sub {
		2971	my ($ns, $buf) = @_;
		2972
		2973	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2974
		2975	if (ref $msg) {
		2976	my ($type, $reply, @payload) =
		2977	"ARRAY" eq ref $msg
		2978	? @$msg
		2979	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2980
		2981	my @reply;
		2982
		2983	if (my $cb = $EXTICMD{$type}) {
		2984	@reply = $cb->($ns, @payload);
		2985	}
		2986
		2987	$ns->ext_reply ($reply, @reply)
		2988	if $reply;
		2989
		2990	} else {
		2991	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2992	}
		2993
		2994	cf::override;
		2995	},
1951	);	2996	);
1952		2997
1953	=item $client->async (\&cb)	2998	=item $client->async (\&cb)
1954		2999
1955	Create a new coroutine, running the specified callback. The coroutine will	3000	Create a new coroutine, running the specified callback. The coroutine will
…		…
1996	our $safe = new Safe "safe";	3041	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	3042	our $safe_hole = new Safe::Hole;
1998		3043
1999	$SIG{FPE} = 'IGNORE';	3044	$SIG{FPE} = 'IGNORE';
2000		3045
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3046	$safe->permit_only (Opcode::opset qw(
		3047	:base_core :base_mem :base_orig :base_math
		3048	grepstart grepwhile mapstart mapwhile
		3049	sort time
		3050	));
2002		3051
2003	# here we export the classes and methods available to script code	3052	# here we export the classes and methods available to script code
2004		3053
2005	=pod	3054	=pod
2006		3055
2007	The following fucntions and emthods are available within a safe environment:	3056	The following functions and methods are available within a safe environment:
2008		3057
2009	cf::object contr pay_amount pay_player map	3058	cf::object
		3059	contr pay_amount pay_player map x y force_find force_add destroy
		3060	insert remove name archname title slaying race decrease split
		3061	value
		3062
2010	cf::object::player player	3063	cf::object::player
2011	cf::player peaceful	3064	player
2012	cf::map trigger	3065
		3066	cf::player
		3067	peaceful
		3068
		3069	cf::map
		3070	trigger
2013		3071
2014	=cut	3072	=cut
2015		3073
2016	for (	3074	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	3075	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3076	insert remove inv nrof name archname title slaying race
		3077	decrease split destroy change_exp value msg lore send_msg)],
2018	["cf::object::player" => qw(player)],	3078	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	3079	["cf::player" => qw(peaceful send_msg)],
2020	["cf::map" => qw(trigger)],	3080	["cf::map" => qw(trigger)],
2021	) {	3081	) {
2022	no strict 'refs';	3082	no strict 'refs';
2023	my ($pkg, @funs) = @$_;	3083	my ($pkg, @funs) = @$_;
2024	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3084	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2041	my ($code, %vars) = @_;	3101	my ($code, %vars) = @_;
2042		3102
2043	my $qcode = $code;	3103	my $qcode = $code;
2044	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3104	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2045	$qcode =~ s/\n/\\n/g;	3105	$qcode =~ s/\n/\\n/g;
		3106
		3107	%vars = (_dummy => 0) unless %vars;
2046		3108
2047	local $_;	3109	local $_;
2048	local @safe::cf::_safe_eval_args = values %vars;	3110	local @safe::cf::_safe_eval_args = values %vars;
2049		3111
2050	my $eval =	3112	my $eval =
…		…
2093	=back	3155	=back
2094		3156
2095	=cut	3157	=cut
2096		3158
2097	#############################################################################	3159	#############################################################################
		3160	# the server's init and main functions
2098		3161
2099	=head2 EXTENSION DATABASE SUPPORT	3162	sub load_facedata($) {
		3163	my ($path) = @_;
2100		3164
2101	Crossfire maintains a very simple database for extension use. It can	3165	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	3166	# for this (global event?)
2103	excludes objects.	3167	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		3168
2105	The parameter C<$family> should best start with the name of the extension	3169	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		3170
2108	=over 4	3171	warn "loading facedata from $path\n";
2109		3172
2110	=item $hashref = cf::db_get $family	3173	my $facedata;
		3174	0 < aio_load $path, $facedata
		3175	or die "$path: $!";
2111		3176
2112	Return a hashref for use by the extension C<$family>, which can be	3177	$facedata = Coro::Storable::thaw $facedata;
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115		3178
2116	=item $value = cf::db_get $family => $key	3179	$facedata->{version} == 2
		3180	or cf::cleanup "$path: version mismatch, cannot proceed.";
2117		3181
2118	Returns a single value from the database	3182	# patch in the exptable
2119		3183	$facedata->{resource}{"res/exp_table"} = {
2120	=item cf::db_put $family => $hashref	3184	type => FT_RSRC,
2121		3185	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}
2148
2149	my $pid;
2150
2151	sub db_save() {
2152	waitpid $pid, 0 if $pid;
2153	if (0 == ($pid = fork)) {
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	3186	};
		3187	cf::cede_to_tick;
2171		3188
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3189	{
		3190	my $faces = $facedata->{faceinfo};
2176		3191
2177	sub db_get($;$) {	3192	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3193	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182		3194
2183	sub db_put($$;$) {	3195	cf::face::set_visibility $idx, $info->{visibility};
2184	if (@_ >= 3) {	3196	cf::face::set_magicmap $idx, $info->{magicmap};
2185	$DB->{$_[0]}{$_[1]} = $_[2];	3197	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2186	} else {	3198	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191		3199
2192	cf::global->attach (	3200	cf::cede_to_tick;
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3201	}
2197	);
2198	}
2199		3202
2200	#############################################################################	3203	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3204	next unless $info->{smooth};
2202		3205
2203	sub cfg_load {	3206	my $idx = cf::face::find $face
		3207	or next;
		3208
		3209	if (my $smooth = cf::face::find $info->{smooth}) {
		3210	cf::face::set_smooth $idx, $smooth;
		3211	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3212	} else {
		3213	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3214	}
		3215
		3216	cf::cede_to_tick;
		3217	}
		3218	}
		3219
		3220	{
		3221	my $anims = $facedata->{animinfo};
		3222
		3223	while (my ($anim, $info) = each %$anims) {
		3224	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3225	cf::cede_to_tick;
		3226	}
		3227
		3228	cf::anim::invalidate_all; # d'oh
		3229	}
		3230
		3231	{
		3232	# TODO: for gcfclient pleasure, we should give resources
		3233	# that gcfclient doesn't grok a >10000 face index.
		3234	my $res = $facedata->{resource};
		3235
		3236	while (my ($name, $info) = each %$res) {
		3237	if (defined $info->{type}) {
		3238	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3239	my $data;
		3240
		3241	if ($info->{type} & 1) {
		3242	# prepend meta info
		3243
		3244	my $meta = $enc->encode ({
		3245	name => $name,
		3246	%{ $info->{meta} || {} },
		3247	});
		3248
		3249	$data = pack "(w/a*)*", $meta, $info->{data};
		3250	} else {
		3251	$data = $info->{data};
		3252	}
		3253
		3254	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3255	cf::face::set_type $idx, $info->{type};
		3256	} else {
		3257	$RESOURCE{$name} = $info;
		3258	}
		3259
		3260	cf::cede_to_tick;
		3261	}
		3262	}
		3263
		3264	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3265
		3266	1
		3267	}
		3268
		3269	cf::global->attach (on_resource_update => sub {
		3270	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3271	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3272
		3273	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3274	my $sound = $soundconf->{compat}[$_]
		3275	or next;
		3276
		3277	my $face = cf::face::find "sound/$sound->[1]";
		3278	cf::sound::set $sound->[0] => $face;
		3279	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3280	}
		3281
		3282	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3283	my $face = cf::face::find "sound/$v";
		3284	cf::sound::set $k => $face;
		3285	}
		3286	}
		3287	});
		3288
		3289	register_exticmd fx_want => sub {
		3290	my ($ns, $want) = @_;
		3291
		3292	while (my ($k, $v) = each %$want) {
		3293	$ns->fx_want ($k, $v);
		3294	}
		3295	};
		3296
		3297	sub load_resource_file($) {
		3298	my $guard = lock_acquire "load_resource_file";
		3299
		3300	my $status = load_resource_file_ $_[0];
		3301	get_slot 0.1, 100;
		3302	cf::arch::commit_load;
		3303
		3304	$status
		3305	}
		3306
		3307	sub reload_regions {
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	load_resource_file "$MAPDIR/regions"
		3313	or die "unable to load regions file\n";
		3314
		3315	for (cf::region::list) {
		3316	$_->{match} = qr/$_->{match}/
		3317	if exists $_->{match};
		3318	}
		3319	}
		3320
		3321	sub reload_facedata {
		3322	load_facedata "$DATADIR/facedata"
		3323	or die "unable to load facedata\n";
		3324	}
		3325
		3326	sub reload_archetypes {
		3327	load_resource_file "$DATADIR/archetypes"
		3328	or die "unable to load archetypes\n";
		3329	}
		3330
		3331	sub reload_treasures {
		3332	load_resource_file "$DATADIR/treasures"
		3333	or die "unable to load treasurelists\n";
		3334	}
		3335
		3336	sub reload_resources {
		3337	warn "reloading resource files...\n";
		3338
		3339	reload_facedata;
		3340	reload_archetypes;
		3341	reload_regions;
		3342	reload_treasures;
		3343
		3344	warn "finished reloading resource files\n";
		3345	}
		3346
		3347	sub reload_config {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3348	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	3349	or return;
2206		3350
2207	local $/;	3351	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	3352	*CFG = YAML::Load <$fh>;
2209		3353
2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3354	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2211		3355
2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3356	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3357	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2219	};	3363	};
2220	warn $@ if $@;	3364	warn $@ if $@;
2221	}	3365	}
2222	}	3366	}
2223		3367
		3368	sub pidfile() {
		3369	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3370	or die "$PIDFILE: $!";
		3371	flock $fh, &Fcntl::LOCK_EX
		3372	or die "$PIDFILE: flock: $!";
		3373	$fh
		3374	}
		3375
		3376	# make sure only one server instance is running at any one time
		3377	sub atomic {
		3378	my $fh = pidfile;
		3379
		3380	my $pid = <$fh>;
		3381	kill 9, $pid if $pid > 0;
		3382
		3383	seek $fh, 0, 0;
		3384	print $fh $$;
		3385	}
		3386
2224	sub main {	3387	sub main {
		3388	cf::init_globals; # initialise logging
		3389
		3390	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3391	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3392	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3393	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3394
		3395	cf::init_experience;
		3396	cf::init_anim;
		3397	cf::init_attackmess;
		3398	cf::init_dynamic;
		3399
		3400	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3401
2225	# we must not ever block the main coroutine	3402	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3403	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3404	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2228	async { Event::one_event };	3405	(async {
		3406	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3407	EV::loop EV::LOOP_ONESHOT;
		3408	})->prio (Coro::PRIO_MAX);
2229	};	3409	};
2230		3410
2231	cfg_load;	3411	evthread_start IO::AIO::poll_fileno;
2232	db_load;	3412
		3413	cf::sync_job {
		3414	reload_resources;
		3415	reload_config;
		3416	db_init;
		3417
		3418	cf::load_settings;
		3419	cf::load_materials;
		3420	cf::init_uuid;
		3421	cf::init_signals;
		3422	cf::init_commands;
		3423	cf::init_skills;
		3424
		3425	cf::init_beforeplay;
		3426
		3427	atomic;
		3428
2233	load_extensions;	3429	load_extensions;
		3430
		3431	utime time, time, $RUNTIMEFILE;
		3432
		3433	# no (long-running) fork's whatsoever before this point(!)
		3434	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3435
		3436	(pop @POST_INIT)->(0) while @POST_INIT;
		3437	};
		3438
2234	Event::loop;	3439	EV::loop;
2235	}	3440	}
2236		3441
2237	#############################################################################	3442	#############################################################################
2238	# initialisation and cleanup	3443	# initialisation and cleanup
2239		3444
2240	# install some emergency cleanup handlers	3445	# install some emergency cleanup handlers
2241	BEGIN {	3446	BEGIN {
		3447	our %SIGWATCHER = ();
2242	for my $signal (qw(INT HUP TERM)) {	3448	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3449	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2244	data => WF_AUTOCANCEL,
2245	signal => $signal,
2246	cb => sub {
2247	cf::cleanup "SIG$signal";	3450	cf::cleanup "SIG$signal";
2248	},
2249	);	3451	};
		3452	}
		3453	}
		3454
		3455	sub write_runtime_sync {
		3456	# first touch the runtime file to show we are still running:
		3457	# the fsync below can take a very very long time.
		3458
		3459	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3460
		3461	my $guard = cf::lock_acquire "write_runtime";
		3462
		3463	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3464	or return;
		3465
		3466	my $value = $cf::RUNTIME + 90 + 10;
		3467	# 10 is the runtime save interval, for a monotonic clock
		3468	# 60 allows for the watchdog to kill the server.
		3469
		3470	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3471	and return;
		3472
		3473	# always fsync - this file is important
		3474	aio_fsync $fh
		3475	and return;
		3476
		3477	# touch it again to show we are up-to-date
		3478	aio_utime $fh, undef, undef;
		3479
		3480	close $fh
		3481	or return;
		3482
		3483	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3484	and return;
		3485
		3486	warn "runtime file written.\n";
		3487
2250	}	3488	1
		3489	}
		3490
		3491	our $uuid_lock;
		3492	our $uuid_skip;
		3493
		3494	sub write_uuid_sync($) {
		3495	$uuid_skip ||= $_[0];
		3496
		3497	return if $uuid_lock;
		3498	local $uuid_lock = 1;
		3499
		3500	my $uuid = "$LOCALDIR/uuid";
		3501
		3502	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3503	or return;
		3504
		3505	my $value = uuid_seq uuid_cur;
		3506
		3507	unless ($value) {
		3508	warn "cowardly refusing to write zero uuid value!\n";
		3509	return;
		3510	}
		3511
		3512	my $value = uuid_str $value + $uuid_skip;
		3513	$uuid_skip = 0;
		3514
		3515	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3516	and return;
		3517
		3518	# always fsync - this file is important
		3519	aio_fsync $fh
		3520	and return;
		3521
		3522	close $fh
		3523	or return;
		3524
		3525	aio_rename "$uuid~", $uuid
		3526	and return;
		3527
		3528	warn "uuid file written ($value).\n";
		3529
		3530	1
		3531
		3532	}
		3533
		3534	sub write_uuid($$) {
		3535	my ($skip, $sync) = @_;
		3536
		3537	$sync ? write_uuid_sync $skip
		3538	: async { write_uuid_sync $skip };
2251	}	3539	}
2252		3540
2253	sub emergency_save() {	3541	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3542	my $freeze_guard = cf::freeze_mainloop;
2255		3543
2256	warn "enter emergency perl save\n";	3544	warn "emergency_perl_save: enter\n";
2257		3545
2258	cf::sync_job {	3546	cf::sync_job {
		3547	# this is a trade-off: we want to be very quick here, so
		3548	# save all maps without fsync, and later call a global sync
		3549	# (which in turn might be very very slow)
		3550	local $USE_FSYNC = 0;
		3551
2259	# use a peculiar iteration method to avoid tripping on perl	3552	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3553	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3554	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3555	warn "emergency_perl_save: begin player save\n";
2263	for my $login (keys %cf::PLAYER) {	3556	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3557	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3558	$pl->valid or next;
		3559	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	3560	$pl->save;
2267	}	3561	}
2268	warn "end emergency player save\n";	3562	warn "emergency_perl_save: end player save\n";
2269		3563
2270	warn "begin emergency map save\n";	3564	warn "emergency_perl_save: begin map save\n";
2271	for my $path (keys %cf::MAP) {	3565	for my $path (keys %cf::MAP) {
2272	my $map = $cf::MAP{$path} or next;	3566	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3567	$map->valid or next;
2274	$map->save;	3568	$map->save;
2275	}	3569	}
2276	warn "end emergency map save\n";	3570	warn "emergency_perl_save: end map save\n";
		3571
		3572	warn "emergency_perl_save: begin database checkpoint\n";
		3573	BDB::db_env_txn_checkpoint $DB_ENV;
		3574	warn "emergency_perl_save: end database checkpoint\n";
		3575
		3576	warn "emergency_perl_save: begin write uuid\n";
		3577	write_uuid_sync 1;
		3578	warn "emergency_perl_save: end write uuid\n";
2277	};	3579	};
2278		3580
		3581	warn "emergency_perl_save: starting sync()\n";
		3582	IO::AIO::aio_sync sub {
		3583	warn "emergency_perl_save: finished sync()\n";
		3584	};
		3585
2279	warn "leave emergency perl save\n";	3586	warn "emergency_perl_save: leave\n";
2280	}	3587	}
2281		3588
		3589	sub post_cleanup {
		3590	my ($make_core) = @_;
		3591
		3592	warn Carp::longmess "post_cleanup backtrace"
		3593	if $make_core;
		3594
		3595	my $fh = pidfile;
		3596	unlink $PIDFILE if <$fh> == $$;
		3597	}
		3598
		3599	# a safer delete_package, copied from Symbol
		3600	sub clear_package($) {
		3601	my $pkg = shift;
		3602
		3603	# expand to full symbol table name if needed
		3604	unless ($pkg =~ /^main::.*::$/) {
		3605	$pkg = "main$pkg" if $pkg =~ /^::/;
		3606	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3607	$pkg .= '::' unless $pkg =~ /::$/;
		3608	}
		3609
		3610	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3611	my $stem_symtab = *{$stem}{HASH};
		3612
		3613	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3614	or return;
		3615
		3616	# clear all symbols
		3617	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3618	for my $name (keys %$leaf_symtab) {
		3619	_gv_clear *{"$pkg$name"};
		3620	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3621	}
		3622	warn "cleared package $pkg\n";#d#
		3623	}
		3624
2282	sub reload() {	3625	sub do_reload_perl() {
2283	# can/must only be called in main	3626	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3627	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	3628	warn "can only reload from main coroutine";
2286	return;	3629	return;
2287	}	3630	}
2288		3631
		3632	return if $RELOAD++;
		3633
		3634	my $t1 = EV::time;
		3635
		3636	while ($RELOAD) {
2289	warn "reloading...";	3637	warn "reloading...";
2290		3638
2291	warn "freezing server";	3639	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	3640
		3641	cf::sync_job {
		3642	cf::write_runtime_sync; # external watchdog should not bark
2293	cf::emergency_save;	3643	cf::emergency_save;
		3644	cf::write_runtime_sync; # external watchdog should not bark
2294		3645
2295	warn "sync database to disk";	3646	warn "syncing database to disk";
2296	cf::db_sync;	3647	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		3648
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	3649	# if anything goes wrong in here, we should simply crash as we already saved
2301		3650
2302	warn "cancel all watchers";	3651	warn "flushing outstanding aio requests";
2303	for (Event::all_watchers) {	3652	while (IO::AIO::nreqs || BDB::nreqs) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	3653	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2305	}
2306
2307	warn "cancel all extension coros";
2308	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();
2310
2311	warn "remove commands";
2312	%COMMAND = ();
2313
2314	warn "remove ext commands";
2315	%EXTCMD = ();
2316
2317	warn "unload/nuke all extensions";
2318	for my $pkg (@EXTS) {
2319	warn "unloading <$pkg>";
2320
2321	if (my $cb = $pkg->can ("unload")) {
2322	eval {
2323	$cb->($pkg);
2324	1
2325	} or warn "$pkg unloaded, but with errors: $@";
2326	}	3654	}
2327		3655
2328	Symbol::delete_package $pkg;	3656	warn "cancelling all extension coros";
2329	}	3657	$_->cancel for values %EXT_CORO;
		3658	%EXT_CORO = ();
2330		3659
2331	warn "unload all perl modules loaded from $LIBDIR";
2332	while (my ($k, $v) = each %INC) {
2333	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2334
2335	warn "removing <$k>";	3660	warn "removing commands";
2336	delete $INC{$k};	3661	%COMMAND = ();
2337		3662
2338	$k =~ s/\.pm$//;	3663	warn "removing ext/exti commands";
2339	$k =~ s/\//::/g;	3664	%EXTCMD = ();
		3665	%EXTICMD = ();
2340		3666
		3667	warn "unloading/nuking all extensions";
		3668	for my $pkg (@EXTS) {
		3669	warn "... unloading $pkg";
		3670
2341	if (my $cb = $k->can ("unload_module")) {	3671	if (my $cb = $pkg->can ("unload")) {
		3672	eval {
2342	$cb->();	3673	$cb->($pkg);
		3674	1
		3675	} or warn "$pkg unloaded, but with errors: $@";
		3676	}
		3677
		3678	warn "... clearing $pkg";
		3679	clear_package $pkg;
2343	}	3680	}
2344		3681
2345	Symbol::delete_package $k;	3682	warn "unloading all perl modules loaded from $LIBDIR";
		3683	while (my ($k, $v) = each %INC) {
		3684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3685
		3686	warn "... unloading $k";
		3687	delete $INC{$k};
		3688
		3689	$k =~ s/\.pm$//;
		3690	$k =~ s/\//::/g;
		3691
		3692	if (my $cb = $k->can ("unload_module")) {
		3693	$cb->();
		3694	}
		3695
		3696	clear_package $k;
2346	}	3697	}
2347		3698
2348	warn "get rid of safe::, as good as possible";	3699	warn "getting rid of safe::, as good as possible";
2349	Symbol::delete_package "safe::$_"	3700	clear_package "safe::$_"
2350	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2351		3702
2352	warn "unload cf.pm \"a bit\"";	3703	warn "unloading cf.pm \"a bit\"";
2353	delete $INC{"cf.pm"};	3704	delete $INC{"cf.pm"};
		3705	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2354		3706
2355	# don't, removes xs symbols, too,	3707	# don't, removes xs symbols, too,
2356	# and global variables created in xs	3708	# and global variables created in xs
2357	#Symbol::delete_package __PACKAGE__;	3709	#clear_package __PACKAGE__;
2358		3710
		3711	warn "unload completed, starting to reload now";
		3712
2359	warn "reloading cf.pm";	3713	warn "reloading cf.pm";
2360	require cf;	3714	require cf;
2361	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2362		3716
2363	warn "load config and database again";	3717	warn "loading config and database again";
2364	cf::cfg_load;	3718	cf::reload_config;
2365	cf::db_load;
2366		3719
2367	warn "load extensions";	3720	warn "loading extensions";
2368	cf::load_extensions;	3721	cf::load_extensions;
2369		3722
		3723	if ($REATTACH_ON_RELOAD) {
2370	warn "reattach attachments to objects/players";	3724	warn "reattaching attachments to objects/players";
2371	_global_reattach;	3725	_global_reattach; # objects, sockets
2372	warn "reattach attachments to maps";	3726	warn "reattaching attachments to maps";
2373	reattach $_ for values %MAP;	3727	reattach $_ for values %MAP;
		3728	warn "reattaching attachments to players";
		3729	reattach $_ for values %PLAYER;
		3730	}
		3731
		3732	warn "running post_init jobs";
		3733	(pop @POST_INIT)->(1) while @POST_INIT;
		3734
		3735	warn "leaving sync_job";
		3736
		3737	1
		3738	} or do {
		3739	warn $@;
		3740	cf::cleanup "error while reloading, exiting.";
		3741	};
		3742
		3743	warn "reloaded";
		3744	--$RELOAD;
		3745	}
		3746
		3747	$t1 = EV::time - $t1;
		3748	warn "reload completed in ${t1}s\n";
		3749	};
		3750
		3751	our $RELOAD_WATCHER; # used only during reload
		3752
		3753	sub reload_perl() {
		3754	# doing reload synchronously and two reloads happen back-to-back,
		3755	# coro crashes during coro_state_free->destroy here.
		3756
		3757	$RELOAD_WATCHER ||= cf::async {
		3758	Coro::AIO::aio_wait cache_extensions;
		3759
		3760	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3761	do_reload_perl;
		3762	undef $RELOAD_WATCHER;
		3763	};
2374	};	3764	};
2375
2376	if ($@) {
2377	warn $@;
2378	warn "error while reloading, exiting.";
2379	exit 1;
2380	}
2381
2382	warn "reloaded";
2383	};
2384
2385	#############################################################################
2386
2387	unless ($LINK_MAP) {
2388	$LINK_MAP = cf::map::new;
2389
2390	$LINK_MAP->width (41);
2391	$LINK_MAP->height (41);
2392	$LINK_MAP->alloc;
2393	$LINK_MAP->path ("{link}");
2394	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2395	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2396
2397	# dirty hack because... archetypes are not yet loaded
2398	Event->timer (
2399	after => 10,
2400	cb => sub {
2401	$_[0]->w->cancel;
2402
2403	# provide some exits "home"
2404	my $exit = cf::object::new "exit";
2405
2406	$exit->slaying ($EMERGENCY_POSITION->[0]);
2407	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2408	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2409
2410	$LINK_MAP->insert ($exit->clone, 19, 19);
2411	$LINK_MAP->insert ($exit->clone, 19, 20);
2412	$LINK_MAP->insert ($exit->clone, 19, 21);
2413	$LINK_MAP->insert ($exit->clone, 20, 19);
2414	$LINK_MAP->insert ($exit->clone, 20, 21);
2415	$LINK_MAP->insert ($exit->clone, 21, 19);
2416	$LINK_MAP->insert ($exit->clone, 21, 20);
2417	$LINK_MAP->insert ($exit->clone, 21, 21);
2418
2419	$exit->destroy;
2420	});
2421
2422	$LINK_MAP->{deny_save} = 1;
2423	$LINK_MAP->{deny_reset} = 1;
2424
2425	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2426	}	3765	}
2427		3766
2428	register_command "reload" => sub {	3767	register_command "reload" => sub {
2429	my ($who, $arg) = @_;	3768	my ($who, $arg) = @_;
2430		3769
2431	if ($who->flag (FLAG_WIZ)) {	3770	if ($who->flag (FLAG_WIZ)) {
2432	$who->message ("start of reload.");
2433	reload;
2434	$who->message ("end of reload.");	3771	$who->message ("reloading server.");
		3772	async {
		3773	$Coro::current->{desc} = "perl_reload";
		3774	reload_perl;
		3775	};
2435	}	3776	}
2436	};	3777	};
2437		3778
2438	unshift @INC, $LIBDIR;	3779	unshift @INC, $LIBDIR;
2439		3780
2440	$TICK_WATCHER = Event->timer (	3781	my $bug_warning = 0;
2441	reentrant => 0,	3782
2442	prio => 0,	3783	our @WAIT_FOR_TICK;
2443	at => $NEXT_TICK || $TICK,	3784	our @WAIT_FOR_TICK_BEGIN;
2444	data => WF_AUTOCANCEL,	3785
2445	cb => sub {	3786	sub wait_for_tick {
		3787	return if tick_inhibit || $Coro::current == $Coro::main;
		3788
		3789	my $signal = new Coro::Signal;
		3790	push @WAIT_FOR_TICK, $signal;
		3791	$signal->wait;
		3792	}
		3793
		3794	sub wait_for_tick_begin {
		3795	return if tick_inhibit || $Coro::current == $Coro::main;
		3796
		3797	my $signal = new Coro::Signal;
		3798	push @WAIT_FOR_TICK_BEGIN, $signal;
		3799	$signal->wait;
		3800	}
		3801
		3802	sub tick {
		3803	if ($Coro::current != $Coro::main) {
		3804	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3805	unless ++$bug_warning > 10;
		3806	return;
		3807	}
		3808
2446	cf::server_tick; # one server iteration	3809	cf::server_tick; # one server iteration
2447	$RUNTIME += $TICK;
2448	$NEXT_TICK += $TICK;
2449		3810
2450	$WAIT_FOR_TICK->broadcast;	3811	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2451	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3812	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2452		3813	Coro::async_pool {
2453	# if we are delayed by four ticks or more, skip them all	3814	$Coro::current->{desc} = "runtime saver";
2454	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2455
2456	$TICK_WATCHER->at ($NEXT_TICK);
2457	$TICK_WATCHER->start;
2458	},
2459	);
2460
2461	IO::AIO::max_poll_time $TICK * 0.2;
2462
2463	Event->io (
2464	fd => IO::AIO::poll_fileno,
2465	poll => 'r',
2466	prio => 5,
2467	data => WF_AUTOCANCEL,
2468	cb => \&IO::AIO::poll_cb,
2469	);
2470
2471	Event->timer (
2472	data => WF_AUTOCANCEL,
2473	after => 0,
2474	interval => 10,
2475	cb => sub {
2476	(Coro::unblock_sub {
2477	write_runtime	3815	write_runtime_sync
2478	or warn "ERROR: unable to write runtime file: $!";	3816	or warn "ERROR: unable to write runtime file: $!";
2479	})->();	3817	};
2480	},	3818	}
2481	);	3819
		3820	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3821	$sig->send;
		3822	}
		3823	while (my $sig = shift @WAIT_FOR_TICK) {
		3824	$sig->send;
		3825	}
		3826
		3827	$LOAD = ($NOW - $TICK_START) / $TICK;
		3828	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3829
		3830	if (0) {
		3831	if ($NEXT_TICK) {
		3832	my $jitter = $TICK_START - $NEXT_TICK;
		3833	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3834	warn "jitter $JITTER\n";#d#
		3835	}
		3836	}
		3837	}
		3838
		3839	{
		3840	# configure BDB
		3841
		3842	BDB::min_parallel 8;
		3843	BDB::max_poll_reqs $TICK * 0.1;
		3844	$AnyEvent::BDB::WATCHER->priority (1);
		3845
		3846	unless ($DB_ENV) {
		3847	$DB_ENV = BDB::db_env_create;
		3848	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3849	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3850	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3851	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3852	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3853
		3854	cf::sync_job {
		3855	eval {
		3856	BDB::db_env_open
		3857	$DB_ENV,
		3858	$BDBDIR,
		3859	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3860	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3861	0666;
		3862
		3863	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3864	};
		3865
		3866	cf::cleanup "db_env_open(db): $@" if $@;
		3867	};
		3868	}
		3869
		3870	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3871	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3872	};
		3873	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3874	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3875	};
		3876	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3877	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3878	};
		3879	}
		3880
		3881	{
		3882	# configure IO::AIO
		3883
		3884	IO::AIO::min_parallel 8;
		3885	IO::AIO::max_poll_time $TICK * 0.1;
		3886	undef $AnyEvent::AIO::WATCHER;
		3887	}
		3888
		3889	my $_log_backtrace;
		3890
		3891	sub _log_backtrace {
		3892	my ($msg, @addr) = @_;
		3893
		3894	$msg =~ s/\n//;
		3895
		3896	# limit the # of concurrent backtraces
		3897	if ($_log_backtrace < 2) {
		3898	++$_log_backtrace;
		3899	my $perl_bt = Carp::longmess $msg;
		3900	async {
		3901	$Coro::current->{desc} = "abt $msg";
		3902
		3903	my @bt = fork_call {
		3904	@addr = map { sprintf "%x", $_ } @addr;
		3905	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3906	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3907	or die "addr2line: $!";
		3908
		3909	my @funcs;
		3910	my @res = <$fh>;
		3911	chomp for @res;
		3912	while (@res) {
		3913	my ($func, $line) = splice @res, 0, 2, ();
		3914	push @funcs, "[$func] $line";
		3915	}
		3916
		3917	@funcs
		3918	};
		3919
		3920	LOG llevInfo, "[ABT] $perl_bt\n";
		3921	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3922	LOG llevInfo, "[ABT] $_\n" for @bt;
		3923	--$_log_backtrace;
		3924	};
		3925	} else {
		3926	LOG llevInfo, "[ABT] $msg\n";
		3927	LOG llevInfo, "[ABT] [suppressed]\n";
		3928	}
		3929	}
		3930
		3931	# load additional modules
		3932	require "cf/$_.pm" for @EXTRA_MODULES;
2482		3933
2483	END { cf::emergency_save }	3934	END { cf::emergency_save }
2484		3935
2485	1	3936	1
2486		3937

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