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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.189 by root, Sun Jan 21 21:28:27 2007 UTC vs.
Revision 1.527 by root, Fri Apr 23 04:32:47 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.4 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 0;#d#
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
53		130
54	our %CFG;	131	our %CFG;
55		132
56	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
58		136
59	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		140
67	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
		153
70	binmode STDOUT;	154	binmode STDOUT;
71	binmode STDERR;	155	binmode STDERR;
72		156
73	# read virtual server time, if available	157	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
78	}	162	}
79		163
80	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	165
82	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		168
86	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		187
88	#############################################################################	188	#############################################################################
89		189
90	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
91		191
…		…
98	=item $cf::RUNTIME	198	=item $cf::RUNTIME
99		199
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	201	every server tick.
102		202
103	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		206
105	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
107		211
108	=item $cf::NOW	212	=item $cf::NOW
109		213
110	The time of the last (current) server tick.	214	The time of the last (current) server tick.
111		215
112	=item $cf::TICK	216	=item $cf::TICK
113		217
114	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
115		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
116	=item %cf::CFG	230	=item %cf::CFG
117		231
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	233	from wherever your confdir points to.
120		234
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		236
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
127		252
128	=back	253	=back
129		254
130	=cut	255	=cut
131		256
132	BEGIN {	257	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	258	my $msg = join "", @_;
135	utf8::encode $msg;
136		259
137	$msg .= "\n"	260	$msg .= "\n"
138	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
139		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
140	LOG llevError, $msg;	265	LOG llevError, $msg;
141	};	266	};
142	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
143		281
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		289
151	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	291	# within the Safe compartment.
153	for my $pkg (qw(	292	for my $pkg (qw(
154	cf::global cf::attachable	293	cf::global cf::attachable
155	cf::object cf::object::player	294	cf::object cf::object::player
156	cf::client cf::player	295	cf::client cf::player
157	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
158	cf::map cf::party cf::region	298	cf::party cf::region
159	)) {	299	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	301	}
163		302
164	$Event::DIED = sub {	303	$EV::DIED = sub {
165	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
166	};	305	};
		306
		307	#############################################################################
167		308
168	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
169		310
170	=over 4	311	=over 4
171		312
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	332	$d
192	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
193	}	334	}
194		335
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
198		337
199	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
200		339
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
209		341
210	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
211		343
212	=cut	344	=cut
213		345
214	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
216	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
217	}	363	}
218		364
219	=item cf::lock_wait $string	365	=item cf::lock_wait $string
220		366
221	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
222		368
223	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
224		370
225	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
228	returned.	374	returned.
229		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
230	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
232		381
233	=cut	382	=item $locked = cf::lock_active $string
234		383
235	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
236		389
237	sub lock_wait($) {	390	sub lock_wait($) {
238	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	392	}
246		393
247	sub lock_acquire($) {	394	sub lock_acquire($) {
248	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
249		397
250	# wait, to be sure we are not locked	398	sub lock_active($) {
251	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	400	}
260		401
261	sub freeze_mainloop {	402	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
263		404
264	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	406	}
266	$WRITE_RUNTIME_WATCHER->start;	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
267	};	472	}
268	$WRITE_RUNTIME_WATCHER->stop;	473	};
269	$TICK_WATCHER->stop;	474
270	$guard	475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
271	}	488	}
272		489
273	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
274		491
275	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		497
281	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
282		499
283	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
284		501
285	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
288		506
289	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
292	fast or be very important.	510	fast or be very important.
…		…
295		513
296	sub sync_job(&) {	514	sub sync_job(&) {
297	my ($job) = @_;	515	my ($job) = @_;
298		516
299	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
300	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
302		522
303	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	524
305	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
306		526
307	my $busy = 1;	527	my $busy = 1;
308	my @res;	528	my @res;
309		529
310	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	532	@res = eval { $job->() };
312	warn $@ if $@;	533	warn $@ if $@;
313	undef $busy;	534	undef $busy;
314	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
315		536
316	while ($busy) {	537	while ($busy) {
317	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
318	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
319		548
320	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
321	} else {	550	} else {
322	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
323		552
…		…
343	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
344		573
345	$coro	574	$coro
346	}	575	}
347		576
348	sub write_runtime {	577	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		578
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
352	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
353		583
354	my $value = $cf::RUNTIME + 90 + 10;	584	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		585
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	sub fork_call(&@) {
359	and return;	587	my ($cb, @args) = @_;
360		588
361	aio_fsync $fh	589	# we seemingly have to make a local copy of the whole thing,
362	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
363		592
364	close $fh	593	my @res = Coro::Util::fork_eval {
365	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
366		597
367	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
368	and return;	599	}
369		600
		601	sub objinfo {
370	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	775	}
372		776
373	=back	777	=back
374		778
375	=cut	779	=cut
376		780
377	#############################################################################	781	#############################################################################
378		782
379	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
380		784
381	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
384		788
385	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	791	Deliantra).
388		792
389	=over 4	793	=over 4
390		794
391	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
392		796
…		…
436	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
437		841
438	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
440		844
441	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
443		847
444	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
445		849
446	=over 4	850	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
556		960
557	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		965
562	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	967	my $pkg = shift @arg;
564		968
565	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
595	}	999	}
596		1000
597	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
598	} else {	1002	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	1004	}
601		1005
602	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
603	}	1007	}
604		1008
…		…
606	if (ref $_[0]) {	1010	if (ref $_[0]) {
607	_object_attach @_;	1011	_object_attach @_;
608	} else {	1012	} else {
609	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
610	}	1014	}
		1015	_recalc_want;
611	};	1016	};
612		1017
613	# all those should be optimised	1018	# all those should be optimised
614	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
619	reattach ($obj);	1024	reattach ($obj);
620	} else {	1025	} else {
621	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
622	}	1027	}
		1028	_recalc_want;
623	};	1029	};
624		1030
625	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
627		1033
…		…
642	";	1048	";
643	die if $@;	1049	die if $@;
644	}	1050	}
645		1051
646	our $override;	1052	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1054
649	sub override {	1055	sub override {
650	$override = 1;	1056	$override = 1;
651	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
652	}	1058	}
653		1059
654	sub do_invoke {	1060	sub do_invoke {
655	my $event = shift;	1061	my $event = shift;
656	my $callbacks = shift;	1062	my $callbacks = shift;
657		1063
658	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
659		1065
660	local $override;	1066	local $override;
661		1067
662	for (@$callbacks) {	1068	for (@$callbacks) {
663	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
672	}	1078	}
673		1079
674	0	1080	0
675	}	1081	}
676		1082
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1084
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1086
681	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
682		1088
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1092
687	=back	1093	=back
688		1094
689	=cut	1095	=cut
690		1096
691	#############################################################################	1097	#############################################################################
692	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
693		1141
694	sub reattach {	1142	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1144	my ($obj) = @_;
697		1145
		1146	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1148
700	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
701		1150
702	@$registry = ();	1151	@$registry = ();
703		1152
…		…
718	cf::attachable->attach (	1167	cf::attachable->attach (
719	prio => -1000000,	1168	prio => -1000000,
720	on_instantiate => sub {	1169	on_instantiate => sub {
721	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
722		1171
723	$data = from_json $data;	1172	$data = decode_json $data;
724		1173
725	for (@$data) {	1174	for (@$data) {
726	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
727		1176
728	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1193	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
746		1195
747	sync_job {	1196	sync_job {
748	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
751		1202
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
755	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
756	close $fh;	1210	aio_close $fh;
757		1211
758	if (@$objs) {	1212	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
764	close $fh;	1221	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
766	}	1223	}
767	} else {	1224	} else {
768	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
769	}	1226	}
770		1227
771	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1232	} else {
773	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
774	}	1234	}
775	} else {	1235	} else {
776	aio_unlink $filename;	1236	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
778	}	1238	}
779	}	1239	};
780	}	1240	}
781		1241
782	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
784		1244
…		…
796	or return;	1256	or return;
797		1257
798	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
800	or return;	1260	or return;
		1261
801	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
802	}	1264	}
803		1265
		1266	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
806	return ($data, $av);	1271	($data, $av)
807	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
808		1279
809	#############################################################################	1280	#############################################################################
810	# command handling &c	1281	# command handling &c
811		1282
812	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1297	}
827		1298
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1300
830	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
831		1306
832	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
833	called.	1308	called.
834		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
835	=cut	1321	=cut
836		1322
837	sub register_extcmd {	1323	sub register_extcmd {
838	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
839		1325
840	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
841	}	1327	}
842		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
843	cf::player->attach (	1337	cf::player->attach (
844	on_command => sub {	1338	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
846		1340
847	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
848	or return;	1342	or return;
849		1343
…		…
854	cf::override;	1348	cf::override;
855	},	1349	},
856	on_extcmd => sub {	1350	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
858		1352
859	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1354
861	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
867	} else {	1370	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1372	}
870		1373
871	cf::override;	1374	cf::override;
872	},	1375	},
873	);	1376	);
874		1377
		1378	# "readahead" all extensions
875	sub load_extension {	1379	sub cache_extensions {
876	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
877		1381
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1385	}
903	die $@;
904	}	1386	};
905		1387
906	push @EXTS, $pkg;	1388	$grp
907	}	1389	}
908		1390
909	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
910	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1396	next unless -r $path;
912	eval {	1397
913	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
914	1	1461	}
915	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
916	}	1472	};
917	}	1473	}
918		1474
919	#############################################################################	1475	#############################################################################
920		1476
		1477	=back
		1478
921	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
922		1480
923	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
924		1482
925	=cut	1483	=cut
926		1484
927	package cf::player;	1485	package cf::player;
928		1486
…		…
930		1488
931	=head3 cf::player	1489	=head3 cf::player
932		1490
933	=over 4	1491	=over 4
934		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
935	=item cf::player::find $login	1507	=item cf::player::find $login
936		1508
937	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
938		1510
939	=cut	1511	=cut
940		1512
941	sub playerdir($) {	1513	sub playerdir($) {
942	cf::localdir	1514	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1516	}
948		1517
949	sub path($) {	1518	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1520
952	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
953	}	1522	}
954		1523
955	sub find_active($) {	1524	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
960		1529
961	sub exists($) {	1530	sub exists($) {
962	my ($login) = @_;	1531	my ($login) = @_;
963		1532
964	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
966	}	1535	}
967		1536
968	sub find($) {	1537	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1539	my $login = $_[0];
971		1540
972	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
973		1542
974	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
976	or return;	1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
978	}	1560	}
979	}	1561	}
980	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
981		1576
982	sub save($) {	1577	sub save($) {
983	my ($pl) = @_;	1578	my ($pl) = @_;
984		1579
985	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
990	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
991		1586
992	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
994		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
995	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
996	Coro::cede;	1596	cf::cede_to_tick;
997	}	1597	}
998		1598
999	sub new($) {	1599	sub new($) {
1000	my ($login) = @_;	1600	my ($login) = @_;
1001		1601
…		…
1007	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1008		1608
1009	$self	1609	$self
1010	}	1610	}
1011		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
1012	=item $pl->quit_character	1622	=item $pl->quit_character
1013		1623
1014	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1016		1626
1017	=cut	1627	=cut
1018		1628
1019	sub quit_character {	1629	sub quit_character {
1020	my ($pl) = @_;	1630	my ($pl) = @_;
1021		1631
		1632	my $name = $pl->ob->name;
		1633
1022	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1636
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1029		1643
1030	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1646	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1647	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1648	$pl->destroy;
		1649
		1650	my $prefix = qr<^~\Q$name\E/>;
		1651
		1652	# nuke player maps
		1653	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1654
1035	IO::AIO::aio_rmtree $temp;	1655	IO::AIO::aio_rmtree $temp;
		1656	}
		1657
		1658	=item $pl->kick
		1659
		1660	Kicks a player out of the game. This destroys the connection.
		1661
		1662	=cut
		1663
		1664	sub kick {
		1665	my ($pl, $kicker) = @_;
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1668	$pl->killer ("kicked");
		1669	$pl->ns->destroy;
1036	}	1670	}
1037		1671
1038	=item cf::player::list_logins	1672	=item cf::player::list_logins
1039		1673
1040	Returns am arrayref of all valid playernames in the system, can take a	1674	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1675	while and may block, so not sync_job-capable, ever.
1042		1676
1043	=cut	1677	=cut
1044		1678
1045	sub list_logins {	1679	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1680	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1681	or return [];
1048		1682
1049	my @logins;	1683	my @logins;
1050		1684
1051	for my $login (@$dirs) {	1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1055		1695
1056	utf8::decode $login;	1696	utf8::decode $login;
1057	push @logins, $login;	1697	push @logins, $login;
1058	}	1698	}
1059		1699
1060	\@logins	1700	\@logins
1061	}	1701	}
1062		1702
1063	=item $player->maps	1703	=item $player->maps
1064		1704
		1705	=item cf::player::maps $login
		1706
1065	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1066	player. May block.	1708	player. May block.
1067		1709
1068	=cut	1710	=cut
1069		1711
1070	sub maps($) {	1712	sub maps($) {
1071	my ($pl) = @_;	1713	my ($pl) = @_;
		1714
		1715	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1716
1073	my $files = aio_readdir playerdir $pl	1717	my $files = aio_readdir playerdir $pl
1074	or return;	1718	or return;
1075		1719
1076	my @paths;	1720	my @paths;
…		…
1078	for (@$files) {	1722	for (@$files) {
1079	utf8::decode $_;	1723	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1724	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1725	next unless /^$PATH_SEP/o;
1082		1726
1083	s/\.map$//;	1727	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1728	}
1086		1729
1087	\@paths	1730	\@paths
1088	}	1731	}
1089		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1091		1738
1092	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1093		1740
1094	=cut	1741	=cut
1095		1742
1096	sub ext_reply($$$%) {	1743	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1098		1745
1099	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1747	}
1103		1748
1104	package cf;	1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
		1762
		1763	=over 4
		1764
		1765	=cut
		1766
		1767	package cf::region;
		1768
		1769	=item cf::region::find_by_path $path
		1770
		1771	Tries to decuce the likely region for a map knowing only its path.
		1772
		1773	=cut
		1774
		1775	sub find_by_path($) {
		1776	my ($path) = @_;
		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
		1780	my ($match, $specificity);
		1781
		1782	for my $region (list) {
		1783	if ($region->{match} && $path =~ $region->{match}) {
		1784	($match, $specificity) = ($region, $region->specificity)
		1785	if $region->specificity > $specificity;
		1786	}
		1787	}
		1788
		1789	$match
		1790	}
1105		1791
1106	=back	1792	=back
1107
1108		1793
1109	=head3 cf::map	1794	=head3 cf::map
1110		1795
1111	=over 4	1796	=over 4
1112		1797
…		…
1124	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1126		1811
1127	sub generate_random_map {	1812	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1816
1129	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1818	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1159		1847
1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1161	}	1849	}
1162		1850
1163	# also paths starting with '/'	1851	# also paths starting with '/'
1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1165		1853
1166	sub thawer_merge {	1854	sub thawer_merge {
1167	my ($self, $merge) = @_;	1855	my ($self, $merge) = @_;
1168		1856
1169	# we have to keep some variables in memory intact	1857	# we have to keep some variables in memory intact
1170	local $self->{path};	1858	local $self->{path};
1171	local $self->{load_path};	1859	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1860
1175	$self->SUPER::thawer_merge ($merge);	1861	$self->SUPER::thawer_merge ($merge);
1176	}	1862	}
1177		1863
1178	sub normalise {	1864	sub normalise {
1179	my ($path, $base) = @_;	1865	my ($path, $base) = @_;
		1866
		1867	$path = "$path"; # make sure its a string
		1868
		1869	$path =~ s/\.map$//;
1180		1870
1181	# map plan:	1871	# map plan:
1182	#	1872	#
1183	# /! non-realised random map exit (special hack!)	1873	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1874	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1222	return $self;	1912	return $self;
1223	}	1913	}
1224	}	1914	}
1225		1915
1226	Carp::carp "unable to resolve path '$path'.";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1227	()	1917	()
1228	}	1918	}
1229		1919
1230	sub init {	1920	sub init {
1231	my ($self) = @_;	1921	my ($self) = @_;
…		…
1246		1936
1247	# the original (read-only) location	1937	# the original (read-only) location
1248	sub load_path {	1938	sub load_path {
1249	my ($self) = @_;	1939	my ($self) = @_;
1250		1940
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1941	"$MAPDIR/$self->{path}.map"
1252	}	1942	}
1253		1943
1254	# the temporary/swap location	1944	# the temporary/swap location
1255	sub save_path {	1945	sub save_path {
1256	my ($self) = @_;	1946	my ($self) = @_;
1257		1947
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1949	"$TMPDIR/$path.map"
1260	}	1950	}
1261		1951
1262	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1263	sub uniq_path {	1953	sub uniq_path {
1264	my ($self) = @_;	1954	my ($self) = @_;
1265		1955
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1957	"$UNIQUEDIR/$path"
1268	}	1958	}
1269		1959
1270	# and all this just because we cannot iterate over	1960	sub decay_objects {
1271	# all maps in C++...
1272	sub change_all_map_light {
1273	my ($change) = @_;	1961	my ($self) = @_;
1274		1962
1275	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1276	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1277	}	1966	}
1278		1967
1279	sub unlink_save {	1968	sub unlink_save {
1280	my ($self) = @_;	1969	my ($self) = @_;
1281		1970
…		…
1286		1975
1287	sub load_header_from($) {	1976	sub load_header_from($) {
1288	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1289		1978
1290	utf8::encode $path;	1979	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1292	or return;	1981	or return;
1293		1982
1294	$self->_load_header ($path)	1983	$self->_load_header ($f)
1295	or return;	1984	or return;
		1985
		1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
1296		1988
1297	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1298		1990
1299	1	1991	1
1300	}	1992	}
…		…
1339	$self->load_header_orig	2031	$self->load_header_orig
1340	or return;	2032	or return;
1341	$self->prepare_orig;	2033	$self->prepare_orig;
1342	}	2034	}
1343		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
		2039	$self->default_region (cf::region::find_by_path $self->{path})
		2040	unless $self->default_region;
		2041
1344	1	2042	1
1345	}	2043	}
1346		2044
1347	sub find;	2045	sub find;
1348	sub find {	2046	sub find {
1349	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1350		2048
1351	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1352		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1353	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1354		2053
1355	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1356	my $guard = cf::lock_acquire "map_find:$path";
1357	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1358	or return;	2056	or return;
1359		2057
1360	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1361		2059
1362	$map->load_header	2060	$map->load_header
1363	or return;	2061	or return;
1364		2062
1365	if ($map->should_reset) {	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	2064	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1368	$map->reset;	2068	$map->reset;
1369	undef $guard;
1370	$map = find $path	2069	return find $path;
1371	or return;
1372	}	2070	}
1373		2071
1374	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1375	}	2073	}
1376	}	2074	}
1377		2075
1378	sub pre_load { }	2076	sub pre_load { }
1379	sub post_load { }	2077	#sub post_load { } # XS
1380		2078
1381	sub load {	2079	sub load {
1382	my ($self) = @_;	2080	my ($self) = @_;
1383		2081
		2082	local $self->{deny_reset} = 1; # loading can take a long time
		2083
1384	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1385	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1386		2088
		2089	return unless $self->valid;
1387	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1388		2091
1389	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1390		2093
1391	$self->alloc;	2094	$self->alloc;
1392		2095
1393	$self->pre_load;	2096	$self->pre_load;
		2097	cf::cede_to_tick;
1394		2098
1395	$self->_load_objects ($self->{load_path}, 1)	2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
		2101	$self->_load_objects ($f)
1396	or return;	2102	or return;
1397		2103
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1399	if delete $self->{load_original};	2105	if delete $self->{load_original};
1400		2106
1401	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;	2108	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1404	$self->clear_unique_items;	2111	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1406	}	2115	}
1407	}	2116	}
1408		2117
1409	Coro::cede;	2118	$f->resolve_delayed_derefs;
1410		2119
		2120	cf::cede_to_tick;
1411	# now do the right thing for maps	2121	# now do the right thing for maps
1412	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;
1419	$self->set_darkness_map;
1420	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	2124	unless $self->difficulty;
1422	Coro::cede;	2125	cf::cede_to_tick;
		2126
		2127	unless ($self->{deny_activate}) {
		2128	$self->decay_objects;
		2129	$self->fix_auto_apply;
		2130	$self->update_buttons;
		2131	cf::cede_to_tick;
1423	$self->activate;	2132	$self->activate;
		2133	}
		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
		2138	$self->in_memory (cf::MAP_ACTIVE);
1424	}	2139	}
1425		2140
1426	$self->post_load;	2141	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	2142	}
1430		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
1431	sub customise_for {	2147	sub customise_for {
1432	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1433		2149
1434	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	2151	if $self->per_player;
1436		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1437	$self	2156	$self
1438	}	2157	}
1439		2158
1440	# find and load all maps in the 3x3 area around a map	2159	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2160	sub load_neighbours {
1442	my ($map) = @_;	2161	my ($map) = @_;
1443		2162
1444	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1445		2164
1446	for (0 .. 3) {	2165	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1448	or next;	2167	or next;
1449	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1450	or next;	2169	or next;
1451	$neigh->load;	2170	$neigh->load;
1452		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2176	}
1456		2177
1457	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1459	or next;	2181	or next;
1460	$neigh->load;	2182	$neigh->load;
1461	}	2183	}
1462	}	2184	}
1463		2185
…		…
1468	}	2190	}
1469		2191
1470	sub do_load_sync {	2192	sub do_load_sync {
1471	my ($map) = @_;	2193	my ($map) = @_;
1472		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1473	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1474	}	2199	}
1475		2200
1476	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = undef;	2202	our $MAP_PREFETCHER = undef;
1478		2203
1479	sub find_async {	2204	sub find_async {
1480	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1481		2206
1482	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1483		2208
1484	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1486	}	2211	}
1487		2212
1488	undef $MAP_PREFETCH{$path};	2213	$MAP_PREFETCH{$path} |= $load;
		2214
1489	$MAP_PREFETCHER ||= cf::async {	2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
1490	while (%MAP_PREFETCH) {	2218	while (%MAP_PREFETCH) {
1491	for my $path (keys %MAP_PREFETCH) {	2219	while (my ($k, $v) = each %MAP_PREFETCH) {
1492	my $map = find $path	2220	if (my $map = find $k) {
1493	or next;
1494	$map->load;	2221	$map->load if $v;
		2222	}
1495		2223
1496	delete $MAP_PREFETCH{$path};	2224	delete $MAP_PREFETCH{$k};
1497	}	2225	}
1498	}	2226	}
1499	undef $MAP_PREFETCHER;	2227	undef $MAP_PREFETCHER;
1500	};	2228	};
1501	$MAP_PREFETCHER->prio (6);	2229	$MAP_PREFETCHER->prio (6);
1502		2230
1503	()	2231	()
1504	}	2232	}
1505		2233
		2234	# common code, used by both ->save and ->swapout
1506	sub save {	2235	sub _save {
1507	my ($self) = @_;	2236	my ($self) = @_;
1508
1509	my $lock = cf::lock_acquire "map_data:" . $self->path;
1510		2237
1511	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1512		2239
1513	return unless $self->dirty;	2240	return unless $self->dirty;
1514		2241
…		…
1520	return if $self->{deny_save};	2247	return if $self->{deny_save};
1521		2248
1522	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1523		2250
1524	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1525	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1526	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1527		2257
1528	if ($uniq) {	2258	if ($uniq) {
1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1531	} else {	2261	} else {
1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1533	}	2263	}
1534	}	2264	}
1535		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1536	sub swap_out {	2274	sub swap_out {
1537	my ($self) = @_;	2275	my ($self) = @_;
1538		2276
1539	# save first because save cedes
1540	$self->save;
1541
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1544	return if $self->players;	2281	return if $self->players;
1545	return if $self->in_memory != cf::MAP_IN_MEMORY;
1546	return if $self->{deny_save};
1547		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1548	$self->clear;	2292	$self->clear;
1549	$self->in_memory (cf::MAP_SWAPPED);
1550	}	2293	}
1551		2294
1552	sub reset_at {	2295	sub reset_at {
1553	my ($self) = @_;	2296	my ($self) = @_;
1554		2297
1555	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1557	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1558		2300
1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1561		2303
…		…
1572	my ($self) = @_;	2314	my ($self) = @_;
1573		2315
1574	my $lock = cf::lock_acquire "map_data:$self->{path}";	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		2317
1576	return if $self->players;	2318	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#
1578		2319
1579	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
		2321
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# need to save uniques path
		2325	unless ($self->{deny_save}) {
		2326	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2327
		2328	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2329	if $uniq;
		2330	}
1580		2331
1581	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1582		2333
1583	$self->in_memory (cf::MAP_SWAPPED);	2334	$self->deactivate;
		2335	$_->clear_links_to ($self) for values %cf::MAP;
1584	$self->clear;	2336	$self->clear;
1585
1586	$_->clear_links_to ($self) for values %cf::MAP;
1587		2337
1588	$self->unlink_save;	2338	$self->unlink_save;
1589	$self->destroy;	2339	$self->destroy;
1590	}	2340	}
1591		2341
1592	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1593		2343
1594	sub nuke {	2344	sub nuke {
1595	my ($self) = @_;	2345	my ($self) = @_;
1596		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
1597	delete $cf::MAP{$self->path};	2350	delete $cf::MAP{$self->path};
1598		2351
1599	$self->unlink_save;	2352	$self->unlink_save;
1600		2353
1601	bless $self, "cf::map";	2354	bless $self, "cf::map::wrap";
1602	delete $self->{deny_reset};	2355	delete $self->{deny_reset};
1603	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1604	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1606		2359
1607	$cf::MAP{$self->path} = $self;	2360	$cf::MAP{$self->path} = $self;
		2361	}
1608		2362
1609	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
		2364	}
		2365
		2366	=item $maps = cf::map::tmp_maps
		2367
		2368	Returns an arrayref with all map paths of currently instantiated and saved
		2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
		2374	[
		2375	map {
		2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item $maps = cf::map::random_maps
		2385
		2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
		2388
		2389	=cut
		2390
		2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
1610	}	2400	}
1611		2401
1612	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1613		2403
1614	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1615	instantiated unique items. May block.	2405	instantiated unique items. May block.
1616		2406
1617	=cut	2407	=cut
1618		2408
1619	sub unique_maps() {	2409	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2410	[
1621	or return;	2411	map {
1622
1623	my @paths;
1624
1625	for (@$files) {
1626	utf8::decode $_;	2412	utf8::decode $_;
1627	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1628	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2415	? ()
		2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
		2418	]
		2419	}
1629		2420
		2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
1630	s/\.map$//;	2442	s/\.map$// or next;
1631	push @paths, $_;	2443	utf8::decode $_;
1632	}	2444	push @maps, "$dir/$_";
		2445	}
1633		2446
1634	\@paths	2447	push @dirs, map "$dir/$_", @$dirs;
1635	}	2448	}
1636		2449
1637	package cf;	2450	\@maps
		2451	}
1638		2452
1639	=back	2453	=back
1640		2454
1641	=head3 cf::object	2455	=head3 cf::object
1642		2456
…		…
1646		2460
1647	=over 4	2461	=over 4
1648		2462
1649	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1650		2464
1651	Returns the inventory of the object _and_ their inventories, recursively.	2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
1652		2467
1653	=cut	2468	=cut
1654		2469
1655	sub inv_recursive_;	2470	sub inv_recursive_;
1656	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1659		2474
1660	sub inv_recursive {	2475	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1662	}	2477	}
1663		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
		2505	}
		2506
1664	package cf;	2507	package cf;
1665		2508
1666	=back	2509	=back
1667		2510
1668	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1677		2520
1678	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1679		2536
1680	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2538	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1685		2542
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2544
1688	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1690	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1693	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1694	}	2570	}
1695		2571
1696	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1697		2573
1698	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1711		2587
1712	=item $player_object->enter_link	2588	=item $player_object->enter_link
1713		2589
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2591
1716	The player should be reasonably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
1718		2596
1719	Will never block.	2597	Will never block.
1720		2598
1721	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1722		2600
…		…
1730	=cut	2608	=cut
1731		2609
1732	sub link_map {	2610	sub link_map {
1733	unless ($LINK_MAP) {	2611	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	2612	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2613	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	2614	$LINK_MAP->load;
1737	}	2615	}
1738		2616
1739	$LINK_MAP	2617	$LINK_MAP
1740	}	2618	}
…		…
1742	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1743	my ($self) = @_;	2621	my ($self) = @_;
1744		2622
1745	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1746		2624
		2625	++$self->{_link_recursion};
		2626
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		2628
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1751		2631
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1753	}	2633	}
1754		2634
1755	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1757		2639
1758	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1759		2641
1760	unless ($map) {	2642	unless ($map) {
1761	# restore original map position	2643	# restore original map position
…		…
1772	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1773	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1774		2656
1775	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1776	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1777	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1778		2660
1779	$map->load;	2661	$map->load;
1780	$map->load_diag;	2662	$map->load_neighbours;
1781		2663
1782	return unless $self->contr->active;	2664	return unless $self->contr->active;
		2665
		2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2667	if ($self->enter_map ($map, $x, $y)) {
		2668	# entering was successful
		2669	delete $self->{_link_recursion};
		2670	# only activate afterwards, to support waiting in hooks
1783	$self->activate_recursive;	2671	$self->activate_recursive;
1784	$self->enter_map ($map, $x, $y);
1785	}
1786
1787	cf::player->attach (
1788	on_logout => sub {
1789	my ($pl) = @_;
1790
1791	# abort map switching before logout
1792	if ($pl->ob->{_link_pos}) {
1793	cf::sync_job {
1794	$pl->ob->leave_link
1795	};
1796	}
1797	},	2672	}
1798	on_login => sub {
1799	my ($pl) = @_;
1800		2673
1801	# try to abort aborted map switching on player login :)	2674	}
1802	# should happen only on crashes
1803	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;
1805	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);
1812	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;
1814	})->prio (2);
1815	}
1816	},
1817	);
1818		2675
1819	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1820		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1821	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1822		2690
1823	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1824	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1825		2702
1826	$self->enter_link;	2703	$self->enter_link;
1827		2704
1828	(async {	2705	(async {
1829	my $map = cf::map::find $path;	2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
		2727	my $map = eval {
		2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1830	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
1831		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	2733	} else {
1833	# if $map;
1834
1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
1836		2736
		2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
		2743	}
		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1837	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1838	})->prio (1);	2751	})->prio (1);
1839	}	2752	}
1840		2753
1841	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1842		2755
…		…
1862	}	2775	}
1863		2776
1864	sub prepare_random_map {	2777	sub prepare_random_map {
1865	my ($exit) = @_;	2778	my ($exit) = @_;
1866		2779
1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1868
1869	# all this does is basically replace the /! path by	2780	# all this does is basically replace the /! path by
1870	# a new random map path (?random/...) with a seed	2781	# a new random map path (?random/...) with a seed
1871	# that depends on the exit object	2782	# that depends on the exit object
1872		2783
1873	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
1874		2785
1875	if ($exit->map) {	2786	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	2787	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1880	}	2793	}
1881		2794
1882	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1883		2796
1884	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1885	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2799	my $meta = "$RANDOMDIR/$md5.meta";
1887		2800
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2803	undef $fh;
1891	aio_rename "$meta~", $meta;	2804	aio_rename "$meta~", $meta;
1892		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1893	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1894	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1895	}	2812	}
1896	}	2813	}
1897		2814
1898	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
…		…
1901	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1902		2819
1903	$self->enter_link;	2820	$self->enter_link;
1904		2821
1905	(async {	2822	(async {
1906	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
1907	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
1908	prepare_random_map $exit	2832	prepare_random_map $exit
1909	if $exit->slaying eq "/!";	2833	if $exit->slaying eq "/!";
		2834	}
1910		2835
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
1913		2839
		2840	$self->goto ($map, $x, $y);
		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
1914	1;	2846	1
1915	}) {	2847	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1917	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
1918	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2852
1921	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1922	$self->leave_link;	2854	$self->leave_link;
1923	}	2855	}
1924	})->prio (1);	2856	})->prio (1);
…		…
1937		2869
1938	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1940		2872
1941	utf8::encode $text;	2873	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2875	}
1944		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
		3064	=item $client->ext_msg ($type, @msg)
		3065
		3066	Sends an ext event to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_msg($$@) {
		3071	my ($self, $type, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
		3076	push @msg, msgtype => "event_$type";
		3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
		3097	}
1945		3098
1946	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1947		3100
1948	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1950	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1951		3104
1952	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
1953	reliable at some point in the future.	3106	become reliable at some point in the future.
1954		3107
1955	=cut	3108	=cut
1956		3109
1957	sub cf::client::query {	3110	sub cf::client::query {
1958	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1966	utf8::encode $text;	3119	utf8::encode $text;
1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1968		3121
1969	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1970	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1971	}	3126	}
1972		3127
1973	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
1974	on_reply => sub {	3134	on_reply => sub {
1975	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
1976		3136
1977	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
1978	# get handled first	3138	# get handled first
1979	my $queue = delete $ns->{query_queue}	3139	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	3140	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		3141
1982	(shift @$queue)->[1]->($msg);	3142	(shift @$queue)->[1]->($msg);
		3143	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		3144
1984	push @{ $ns->{query_queue} }, @$queue;	3145	push @{ $ns->{query_queue} }, @$queue;
1985		3146
1986	if (@{ $ns->{query_queue} } == @$queue) {	3147	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	3148	if (@$queue) {
…		…
1989	} else {	3150	} else {
1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1991	}	3152	}
1992	}	3153	}
1993	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
1994	);	3181	);
1995		3182
1996	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
1997		3184
1998	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
2014		3201
2015	$coro	3202	$coro
2016	}	3203	}
2017		3204
2018	cf::client->attach (	3205	cf::client->attach (
2019	on_destroy => sub {	3206	on_client_destroy => sub {
2020	my ($ns) = @_;	3207	my ($ns) = @_;
2021		3208
2022	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2023	},	3210	},
2024	);	3211	);
…		…
2039	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
2040	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
2041		3228
2042	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
2043		3230
2044	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
2045		3236
2046	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2047		3238
2048	=pod	3239	=pod
2049		3240
2050	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2051		3242
2052	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
2053	cf::object::player player	3248	cf::object::player
2054	cf::player peaceful	3249	player
2055	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2056		3256
2057	=cut	3257	=cut
2058		3258
2059	for (	3259	for (
2060	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
2061	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2062	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2063	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2064	) {	3266	) {
2065	no strict 'refs';	3267	no strict 'refs';
2066	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2067	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2085		3287
2086	my $qcode = $code;	3288	my $qcode = $code;
2087	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2088	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2089		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2090	local $_;	3295	local $_;
2091	local @safe::cf::_safe_eval_args = values %vars;
2092		3296
2093	my $eval =	3297	my $eval =
2094	"do {\n"	3298	"do {\n"
2095	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2096	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2097	. $code	3301	. $code
2098	. "\n}"	3302	. "\n}"
2099	;	3303	;
2100		3304
		3305	if ($CFG{safe_eval}) {
2101	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2102	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2103	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
2104		3314
2105	if ($@) {	3315	if ($@) {
2106	warn "$@";	3316	warn "$@";
2107	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2108	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2127	=cut	3337	=cut
2128		3338
2129	sub register_script_function {	3339	sub register_script_function {
2130	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2131		3341
2132	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2133	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2134	}	3344	}
2135		3345
2136	=back	3346	=back
2137		3347
2138	=cut	3348	=cut
2139		3349
2140	#############################################################################	3350	#############################################################################
		3351	# the server's init and main functions
2141		3352
2142	=head2 EXTENSION DATABASE SUPPORT	3353	sub load_facedata($) {
		3354	my ($path) = @_;
2143		3355
2144	Crossfire maintains a very simple database for extension use. It can	3356	# HACK to clear player env face cache, we need some signal framework
2145	currently store anything that can be serialised using Storable, which	3357	# for this (global event?)
2146	excludes objects.	3358	%ext::player_env::MUSIC_FACE_CACHE = ();
2147		3359
2148	The parameter C<$family> should best start with the name of the extension	3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2149	using it, it should be unique.
2150		3361
2151	=over 4	3362	warn "loading facedata from $path\n";
2152		3363
2153	=item $hashref = cf::db_get $family	3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
2154		3367
2155	Return a hashref for use by the extension C<$family>, which can be	3368	$facedata = Coro::Storable::thaw $facedata;
2156	modified. After modifications, you have to call C<cf::db_dirty> or
2157	C<cf::db_sync>.
2158		3369
2159	=item $value = cf::db_get $family => $key	3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2160		3372
2161	Returns a single value from the database	3373	# patch in the exptable
2162		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2163	=item cf::db_put $family => $hashref	3375	$facedata->{resource}{"res/exp_table"} = {
2164		3376	type => FT_RSRC,
2165	Stores the given family hashref into the database. Updates are delayed, if	3377	data => $exp_table,
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3378	hash => (Digest::MD5::md5 $exp_table),
2167
2168	=item cf::db_put $family => $key => $value
2169
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180
2181	=cut
2182
2183	our $DB;
2184
2185	{
2186	my $path = cf::localdir . "/database.pst";
2187
2188	sub db_load() {
2189	$DB = stat $path ? Storable::retrieve $path : { };
2190	}	3379	};
		3380	cf::cede_to_tick;
2191		3381
2192	my $pid;
2193
2194	sub db_save() {
2195	waitpid $pid, 0 if $pid;
2196	if (0 == ($pid = fork)) {
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}
2202	}	3382	{
		3383	my $faces = $facedata->{faceinfo};
2203		3384
2204	my $dirty;	3385	while (my ($face, $info) = each %$faces) {
		3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205		3387
2206	sub db_sync() {	3388	cf::face::set_visibility $idx, $info->{visibility};
2207	db_save if $dirty;	3389	cf::face::set_magicmap $idx, $info->{magicmap};
2208	undef $dirty;	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2209	}	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2210		3392
2211	my $idle = Event->idle (	3393	cf::cede_to_tick;
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {
2226	@_ >= 2
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230
2231	sub db_put($$;$) {
2232	if (@_ >= 3) {
2233	$DB->{$_[0]}{$_[1]} = $_[2];
2234	} else {
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239
2240	cf::global->attach (
2241	prio => 10000,
2242	on_cleanup => sub {
2243	db_sync;
2244	},	3394	}
2245	);
2246	}
2247		3395
2248	#############################################################################	3396	while (my ($face, $info) = each %$faces) {
2249	# the server's main()	3397	next unless $info->{smooth};
2250		3398
2251	sub cfg_load {	3399	my $idx = cf::face::find $face
		3400	or next;
		3401
		3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
		3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3405	} else {
		3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	{
		3414	my $anims = $facedata->{animinfo};
		3415
		3416	while (my ($anim, $info) = each %$anims) {
		3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3418	cf::cede_to_tick;
		3419	}
		3420
		3421	cf::anim::invalidate_all; # d'oh
		3422	}
		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
		3443	1
		3444	}
		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
		3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
		3489	load_resource_file "$MAPDIR/regions"
		3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_archetypes;
		3518	reload_regions;
		3519	reload_treasures;
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
2252	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2253	or return;	3528	or return;
2254		3529
2255	local $/;	3530	local $/;
2256	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2257		3532
2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2259		3534
2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2262		3537
2263	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2265	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2266	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2267	};	3542	};
2268	warn $@ if $@;	3543	warn $@ if $@;
2269	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2270	}	3575	}
2271		3576
2272	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2273	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2274	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2276	(async {	3590	(async {
2277	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
2278	})->prio (Coro::PRIO_MAX);	3593	})->prio (Coro::PRIO_MAX);
2279	};	3594	};
2280		3595
2281	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
2282	db_load;	3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
		3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2283	load_extensions;	3619	load_extensions;
2284		3620
2285	$TICK_WATCHER->start;	3621	utime time, time, $RUNTIMEFILE;
2286	Event::loop;	3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2287	}	3634	}
2288		3635
2289	#############################################################################	3636	#############################################################################
2290	# initialisation and cleanup	3637	# initialisation and cleanup
2291		3638
2292	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2293	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2294	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2295	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2296	reentrant => 0,
2297	data => WF_AUTOCANCEL,
2298	signal => $signal,
2299	cb => sub {
2300	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2301	},
2302	);	3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
2303	}	3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
2304	}	3735	}
2305		3736
2306	sub emergency_save() {	3737	sub emergency_save() {
2307	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2308		3739
2309	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2310		3741
2311	cf::sync_job {	3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
2312	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2313	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2314	# and maps saved/destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2315	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2316	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2317	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2318	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2319	$pl->save;	3756	$pl->save;
2320	}	3757	}
2321	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2322		3759
2323	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2324	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2325	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2326	$map->valid or next;	3763	$map->valid or next;
2327	$map->save;	3764	$map->save;
2328	}	3765	}
2329	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
		3767
		3768	warn "emergency_perl_save: begin database checkpoint\n";
		3769	BDB::db_env_txn_checkpoint $DB_ENV;
		3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2330	};	3775	};
2331		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2332	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2333	}	3783	}
2334		3784
		3785	sub post_cleanup {
		3786	my ($make_core) = @_;
		3787
		3788	warn Carp::longmess "post_cleanup backtrace"
		3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2335	sub reload() {	3820	sub do_reload_perl() {
2336	# can/must only be called in main	3821	# can/must only be called in main
2337	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2338	warn "can only reload from main coroutine";	3823	warn "can only reload from main coroutine";
2339	return;	3824	return;
2340	}	3825	}
2341		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2342	warn "reloading...";	3832	warn "reloading...";
2343		3833
2344	warn "cancelling server ticker";	3834	warn "entering sync_job";
2345	$TICK_WATCHER->cancel;
2346		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2347	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2348		3840
2349	eval {	3841	warn "syncing database to disk";
		3842	BDB::db_env_txn_checkpoint $DB_ENV;
		3843
2350	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2351		3845
2352	warn "syncing database to disk";
2353	cf::db_sync;
2354
2355	warn "cancelling all WF_AUTOCANCEL watchers";
2356	for (Event::all_watchers) {
2357	$_->cancel if $_->data & WF_AUTOCANCEL;
2358	}
2359
2360	warn "flushing outstanding aio requests";	3846	warn "flushing outstanding aio requests";
2361	for (;;) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2362	IO::AIO::flush;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2363	Coro::cede;
2364	last unless IO::AIO::nreqs;
2365	warn "iterate...";
2366	}
2367
2368	warn "cancelling all extension coros";
2369	$_->cancel for values %EXT_CORO;
2370	%EXT_CORO = ();
2371
2372	warn "removing commands";
2373	%COMMAND = ();
2374
2375	warn "removing ext commands";
2376	%EXTCMD = ();
2377
2378	warn "unloading/nuking all extensions";
2379	for my $pkg (@EXTS) {
2380	warn "... unloading $pkg";
2381
2382	if (my $cb = $pkg->can ("unload")) {
2383	eval {
2384	$cb->($pkg);
2385	1
2386	} or warn "$pkg unloaded, but with errors: $@";
2387	}	3849	}
2388		3850
2389	warn "... nuking $pkg";	3851	warn "cancelling all extension coros";
2390	Symbol::delete_package $pkg;	3852	$_->cancel for values %EXT_CORO;
2391	}	3853	%EXT_CORO = ();
2392		3854
2393	warn "unloading all perl modules loaded from $LIBDIR";	3855	warn "removing commands";
2394	while (my ($k, $v) = each %INC) {	3856	%COMMAND = ();
2395	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2396		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2397	warn "... unloading $k";	3864	warn "... unloading $pkg";
2398	delete $INC{$k};
2399		3865
2400	$k =~ s/\.pm$//;
2401	$k =~ s/\//::/g;
2402
2403	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2404	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2405	}	3875	}
2406		3876
2407	Symbol::delete_package $k;	3877	warn "unloading all perl modules loaded from $LIBDIR";
		3878	while (my ($k, $v) = each %INC) {
		3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
2408	}	3892	}
2409		3893
2410	warn "getting rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2411	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2413		3897
2414	warn "unloading cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2415	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2416		3901
2417	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2418	# and global variables created in xs	3903	# and global variables created in xs
2419	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2420		3905
2421	warn "unload completed, starting to reload now";	3906	warn "unload completed, starting to reload now";
2422		3907
2423	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2424	require cf;	3909	require cf;
2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2426		3911
2427	warn "loading config and database again";	3912	warn "loading config and database again";
2428	cf::cfg_load;	3913	cf::reload_config;
2429	cf::db_load;
2430		3914
2431	warn "loading extensions";	3915	warn "loading extensions";
2432	cf::load_extensions;	3916	cf::load_extensions;
2433		3917
		3918	if ($REATTACH_ON_RELOAD) {
2434	warn "reattaching attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2435	_global_reattach;	3920	_global_reattach; # objects, sockets
2436	warn "reattaching attachments to maps";	3921	warn "reattaching attachments to maps";
2437	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
		3923	warn "reattaching attachments to players";
		3924	reattach $_ for values %PLAYER;
		3925	}
2438		3926
2439	warn "restarting server ticker";	3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
2440		3929
2441	$TICK_WATCHER->start;	3930	warn "leaving sync_job";
		3931
		3932	1
		3933	} or do {
		3934	warn $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
		3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2442	};	3959	};
2443		3960	}
2444	if ($@) {
2445	warn $@;
2446	warn "error while reloading, exiting.";
2447	exit 1;
2448	}
2449
2450	warn "reloaded";
2451	};
2452
2453	our $RELOAD_WATCHER; # used only during reload
2454		3961
2455	register_command "reload" => sub {	3962	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2457		3964
2458	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("reloading server.");	3966	$who->message ("reloading server.");
2460		3967	async {
2461	# doing reload synchronously and two reloads happen back-to-back,	3968	$Coro::current->{desc} = "perl_reload";
2462	# coro crashes during coro_state_free->destroy here.
2463
2464	$RELOAD_WATCHER ||= Event->timer (
2465	reentrant => 0,
2466	after => 0,
2467	data => WF_AUTOCANCEL,
2468	cb => sub {
2469	reload;	3969	reload_perl;
2470	undef $RELOAD_WATCHER;
2471	},
2472	);	3970	};
2473	}	3971	}
2474	};	3972	};
2475		3973
2476	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2477		3975
2478	my $bug_warning = 0;	3976	my $bug_warning = 0;
2479		3977
2480	$TICK_WATCHER = Event->timer (	3978	our @WAIT_FOR_TICK;
2481	reentrant => 0,	3979	our @WAIT_FOR_TICK_BEGIN;
2482	parked => 1,	3980
2483	prio => 0,	3981	sub wait_for_tick {
2484	at => $NEXT_TICK || $TICK,	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2485	data => WF_AUTOCANCEL,	3983
2486	cb => sub {	3984	my $signal = new Coro::Signal;
		3985	push @WAIT_FOR_TICK, $signal;
		3986	$signal->wait;
		3987	}
		3988
		3989	sub wait_for_tick_begin {
		3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3991
		3992	my $signal = new Coro::Signal;
		3993	push @WAIT_FOR_TICK_BEGIN, $signal;
		3994	$signal->wait;
		3995	}
		3996
		3997	sub tick {
2487	if ($Coro::current != $Coro::main) {	3998	if ($Coro::current != $Coro::main) {
2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2489	unless ++$bug_warning > 10;	4000	unless ++$bug_warning > 10;
2490	return;	4001	return;
2491	}	4002	}
2492		4003
2493	$NOW = Event::time;
2494
2495	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2496	$RUNTIME += $TICK;
2497	$NEXT_TICK += $TICK;
2498		4005
2499	$WAIT_FOR_TICK->broadcast;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2501		4007
2502	# if we are delayed by four ticks or more, skip them all	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2503	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2504		4010	Coro::async_pool {
2505	$TICK_WATCHER->at ($NEXT_TICK);	4011	$Coro::current->{desc} = "runtime saver";
2506	$TICK_WATCHER->start;
2507	},
2508	);
2509
2510	IO::AIO::max_poll_time $TICK * 0.2;
2511
2512	undef $Coro::AIO::WATCHER;
2513	$AIO_POLL_WATCHER = Event->io (
2514	reentrant => 0,
2515	fd => IO::AIO::poll_fileno,
2516	poll => 'r',
2517	prio => 6,
2518	data => WF_AUTOCANCEL,
2519	cb => \&IO::AIO::poll_cb,
2520	);
2521
2522	$WRITE_RUNTIME_WATCHER = Event->timer (
2523	reentrant => 0,
2524	data => WF_AUTOCANCEL,
2525	after => 1,
2526	interval => 10,
2527	prio => 6, # keep it lowest so it acts like a watchdog
2528	cb => Coro::unblock_sub {
2529	write_runtime	4012	write_runtime_sync
2530	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
		4014	};
2531	},	4015	}
2532	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
		4035
		4036	{
		4037	# configure BDB
		4038
		4039	BDB::min_parallel 16;
		4040	BDB::max_poll_reqs $TICK * 0.1;
		4041	$AnyEvent::BDB::WATCHER->priority (1);
		4042
		4043	unless ($DB_ENV) {
		4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4050
		4051	cf::sync_job {
		4052	eval {
		4053	BDB::db_env_open
		4054	$DB_ENV,
		4055	$BDBDIR,
		4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4058	0666;
		4059
		4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4061	};
		4062
		4063	cf::cleanup "db_env_open(db): $@" if $@;
		4064	};
		4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
		4076	}
		4077
		4078	{
		4079	# configure IO::AIO
		4080
		4081	IO::AIO::min_parallel 8;
		4082	IO::AIO::max_poll_time $TICK * 0.1;
		4083	undef $AnyEvent::AIO::WATCHER;
		4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2533		4131
2534	END { cf::emergency_save }	4132	END { cf::emergency_save }
2535		4133
2536	1	4134	1
2537		4135

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