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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.196 by root, Sat Jan 27 23:59:29 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 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 3.5 ();	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 = 1;
		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;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1029		1642
1030	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1035	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1036	}	1669	}
1037		1670
1038	=item cf::player::list_logins	1671	=item cf::player::list_logins
1039		1672
1040	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1042		1675
1043	=cut	1676	=cut
1044		1677
1045	sub list_logins {	1678	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1680	or return [];
1048		1681
1049	my @logins;	1682	my @logins;
1050		1683
1051	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1055		1694
1056	utf8::decode $login;	1695	utf8::decode $login;
1057	push @logins, $login;	1696	push @logins, $login;
1058	}	1697	}
1059		1698
1060	\@logins	1699	\@logins
1061	}	1700	}
1062		1701
1063	=item $player->maps	1702	=item $player->maps
1064		1703
		1704	=item cf::player::maps $login
		1705
1065	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1066	player. May block.	1707	player. May block.
1067		1708
1068	=cut	1709	=cut
1069		1710
1070	sub maps($) {	1711	sub maps($) {
1071	my ($pl) = @_;	1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1715
1073	my $files = aio_readdir playerdir $pl	1716	my $files = aio_readdir playerdir $pl
1074	or return;	1717	or return;
1075		1718
1076	my @paths;	1719	my @paths;
…		…
1078	for (@$files) {	1721	for (@$files) {
1079	utf8::decode $_;	1722	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1723	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1724	next unless /^$PATH_SEP/o;
1082		1725
1083	s/\.map$//;	1726	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1727	}
1086		1728
1087	\@paths	1729	\@paths
1088	}	1730	}
1089		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1091		1737
1092	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1093		1739
1094	=cut	1740	=cut
1095		1741
1096	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1098		1744
1099	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1746	}
1103		1747
1104	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1105		1790
1106	=back	1791	=back
1107
1108		1792
1109	=head3 cf::map	1793	=head3 cf::map
1110		1794
1111	=over 4	1795	=over 4
1112		1796
…		…
1124	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1126		1810
1127	sub generate_random_map {	1811	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1129	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1817	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1159		1846
1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1161	}	1848	}
1162		1849
1163	# also paths starting with '/'	1850	# also paths starting with '/'
1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1165		1852
1166	sub thawer_merge {	1853	sub thawer_merge {
1167	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1168		1855
1169	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1170	local $self->{path};	1857	local $self->{path};
1171	local $self->{load_path};	1858	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1859
1175	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1176	}	1861	}
1177		1862
1178	sub normalise {	1863	sub normalise {
1179	my ($path, $base) = @_;	1864	my ($path, $base) = @_;
1180		1865
1181	$path = "$path"; # make sure its a string	1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
1182		1869
1183	# map plan:	1870	# map plan:
1184	#	1871	#
1185	# /! non-realised random map exit (special hack!)	1872	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1873	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1224	return $self;	1911	return $self;
1225	}	1912	}
1226	}	1913	}
1227		1914
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1916	()
1230	}	1917	}
1231		1918
1232	sub init {	1919	sub init {
1233	my ($self) = @_;	1920	my ($self) = @_;
…		…
1248		1935
1249	# the original (read-only) location	1936	# the original (read-only) location
1250	sub load_path {	1937	sub load_path {
1251	my ($self) = @_;	1938	my ($self) = @_;
1252		1939
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1254	}	1941	}
1255		1942
1256	# the temporary/swap location	1943	# the temporary/swap location
1257	sub save_path {	1944	sub save_path {
1258	my ($self) = @_;	1945	my ($self) = @_;
1259		1946
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1262	}	1949	}
1263		1950
1264	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1265	sub uniq_path {	1952	sub uniq_path {
1266	my ($self) = @_;	1953	my ($self) = @_;
1267		1954
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1270	}	1957	}
1271		1958
1272	# and all this just because we cannot iterate over	1959	sub decay_objects {
1273	# all maps in C++...
1274	sub change_all_map_light {
1275	my ($change) = @_;	1960	my ($self) = @_;
1276		1961
1277	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1278	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1279	}	1965	}
1280		1966
1281	sub unlink_save {	1967	sub unlink_save {
1282	my ($self) = @_;	1968	my ($self) = @_;
1283		1969
…		…
1288		1974
1289	sub load_header_from($) {	1975	sub load_header_from($) {
1290	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1291		1977
1292	utf8::encode $path;	1978	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1294	or return;	1980	or return;
1295		1981
1296	$self->_load_header ($path)	1982	$self->_load_header ($f)
1297	or return;	1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1298		1987
1299	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1300		1989
1301	1	1990	1
1302	}	1991	}
…		…
1341	$self->load_header_orig	2030	$self->load_header_orig
1342	or return;	2031	or return;
1343	$self->prepare_orig;	2032	$self->prepare_orig;
1344	}	2033	}
1345		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
1346	1	2041	1
1347	}	2042	}
1348		2043
1349	sub find;	2044	sub find;
1350	sub find {	2045	sub find {
1351	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1352		2047
1353	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1354		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1356		2052
1357	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";
1359	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1360	or return;	2055	or return;
1361		2056
1362	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1363		2058
1364	$map->load_header	2059	$map->load_header
1365	or return;	2060	or return;
1366		2061
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1370	$map->reset;	2067	$map->reset;
1371	undef $guard;
1372	return find $path;	2068	return find $path;
1373	}	2069	}
1374		2070
1375	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1376	}	2072	}
1377	}	2073	}
1378		2074
1379	sub pre_load { }	2075	sub pre_load { }
1380	sub post_load { }	2076	#sub post_load { } # XS
1381		2077
1382	sub load {	2078	sub load {
1383	my ($self) = @_;	2079	my ($self) = @_;
1384		2080
1385	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1386		2082
1387	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1388	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1389		2087
		2088	return unless $self->valid;
1390	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1391		2090
1392	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1393		2092
1394	$self->alloc;	2093	$self->alloc;
1395		2094
1396	$self->pre_load;	2095	$self->pre_load;
		2096	cf::cede_to_tick;
1397		2097
1398	$self->_load_objects ($self->{load_path}, 1)	2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1399	or return;	2101	or return;
1400		2102
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1402	if delete $self->{load_original};	2104	if delete $self->{load_original};
1403		2105
1404	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;	2107	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1407	$self->clear_unique_items;	2110	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1409	}	2114	}
1410	}	2115	}
1411		2116
1412	Coro::cede;	2117	$f->resolve_delayed_derefs;
1413		2118
		2119	cf::cede_to_tick;
1414	# now do the right thing for maps	2120	# now do the right thing for maps
1415	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;
1422	$self->set_darkness_map;
1423	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	2123	unless $self->difficulty;
1425	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1426	$self->activate;	2131	$self->activate;
		2132	}
		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
		2137	$self->in_memory (cf::MAP_ACTIVE);
1427	}	2138	}
1428		2139
1429	$self->post_load;	2140	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	2141	}
1433		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1434	sub customise_for {	2146	sub customise_for {
1435	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1436		2148
1437	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1438	if $self->per_player;	2150	if $self->per_player;
1439		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1440	$self	2155	$self
1441	}	2156	}
1442		2157
1443	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1444	sub load_diag {	2159	sub load_neighbours {
1445	my ($map) = @_;	2160	my ($map) = @_;
1446		2161
1447	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1448		2163
1449	for (0 .. 3) {	2164	for (0 .. 3) {
1450	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1451	or next;	2166	or next;
1452	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1453	or next;	2168	or next;
1454	$neigh->load;	2169	$neigh->load;
1455		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1458	}	2175	}
1459		2176
1460	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1461	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1462	or next;	2180	or next;
1463	$neigh->load;	2181	$neigh->load;
1464	}	2182	}
1465	}	2183	}
1466		2184
…		…
1471	}	2189	}
1472		2190
1473	sub do_load_sync {	2191	sub do_load_sync {
1474	my ($map) = @_;	2192	my ($map) = @_;
1475		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1476	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1477	}	2198	}
1478		2199
1479	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1480	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1481		2202
1482	sub find_async {	2203	sub find_async {
1483	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1484		2205
1485	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1486		2207
1487	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1489	}	2210	}
1490		2211
1491	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1492	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1493	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1494	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1495	my $map = find $path	2219	if (my $map = find $k) {
1496	or next;
1497	$map->load;	2220	$map->load if $v;
		2221	}
1498		2222
1499	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1500	}	2224	}
1501	}	2225	}
1502	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1503	};	2227	};
1504	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1505		2229
1506	()	2230	()
1507	}	2231	}
1508		2232
		2233	# common code, used by both ->save and ->swapout
1509	sub save {	2234	sub _save {
1510	my ($self) = @_;	2235	my ($self) = @_;
1511
1512	my $lock = cf::lock_acquire "map_data:" . $self->path;
1513		2236
1514	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1515		2238
1516	return unless $self->dirty;	2239	return unless $self->dirty;
1517		2240
…		…
1523	return if $self->{deny_save};	2246	return if $self->{deny_save};
1524		2247
1525	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1526		2249
1527	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1528	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1529	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1530		2256
1531	if ($uniq) {	2257	if ($uniq) {
1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1533	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1534	} else {	2260	} else {
1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1536	}	2262	}
1537	}	2263	}
1538		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1539	sub swap_out {	2273	sub swap_out {
1540	my ($self) = @_;	2274	my ($self) = @_;
1541		2275
1542	# save first because save cedes
1543	$self->save;
1544
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1547	return if $self->players;	2280	return if $self->players;
1548	return if $self->in_memory != cf::MAP_IN_MEMORY;
1549	return if $self->{deny_save};
1550		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1551	$self->clear;	2291	$self->clear;
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	}	2292	}
1554		2293
1555	sub reset_at {	2294	sub reset_at {
1556	my ($self) = @_;	2295	my ($self) = @_;
1557		2296
1558	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
1560	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1561		2299
1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1564		2302
…		…
1575	my ($self) = @_;	2313	my ($self) = @_;
1576		2314
1577	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2316
1579	return if $self->players;	2317	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#
1581		2318
1582	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1583		2330
1584	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1585		2332
1586	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1587	$self->clear;	2335	$self->clear;
1588
1589	$_->clear_links_to ($self) for values %cf::MAP;
1590		2336
1591	$self->unlink_save;	2337	$self->unlink_save;
1592	$self->destroy;	2338	$self->destroy;
1593	}	2339	}
1594		2340
1595	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1596		2342
1597	sub nuke {	2343	sub nuke {
1598	my ($self) = @_;	2344	my ($self) = @_;
1599		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1600	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1601		2350
1602	$self->unlink_save;	2351	$self->unlink_save;
1603		2352
1604	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1605	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1606	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1607	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1609		2358
1610	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1611		2361
1612	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1613	}	2399	}
1614		2400
1615	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1616		2402
1617	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2404	instantiated unique items. May block.
1619		2405
1620	=cut	2406	=cut
1621		2407
1622	sub unique_maps() {	2408	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1624	or return;	2410	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2411	utf8::decode $_;
1630	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1631	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
1632		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
1633	s/\.map$//;	2441	s/\.map$// or next;
1634	push @paths, $_;	2442	utf8::decode $_;
1635	}	2443	push @maps, "$dir/$_";
		2444	}
1636		2445
1637	\@paths	2446	push @dirs, map "$dir/$_", @$dirs;
1638	}	2447	}
1639		2448
1640	package cf;	2449	\@maps
		2450	}
1641		2451
1642	=back	2452	=back
1643		2453
1644	=head3 cf::object	2454	=head3 cf::object
1645		2455
…		…
1649		2459
1650	=over 4	2460	=over 4
1651		2461
1652	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1653		2463
1654	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1655		2466
1656	=cut	2467	=cut
1657		2468
1658	sub inv_recursive_;	2469	sub inv_recursive_;
1659	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1662		2473
1663	sub inv_recursive {	2474	sub inv_recursive {
1664	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1665	}	2476	}
1666		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1667	package cf;	2506	package cf;
1668		2507
1669	=back	2508	=back
1670		2509
1671	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1677	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1678	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1679	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1680		2519
1681	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1682		2535
1683	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1684	# with dialog boxes.	2537	# with dialog boxes.
1685	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1686	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1688		2541
1689	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1690		2543
1691	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1692	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1693	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1694	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1695	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1696	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1697	}	2569	}
1698		2570
1699	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1700		2572
1701	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1714		2586
1715	=item $player_object->enter_link	2587	=item $player_object->enter_link
1716		2588
1717	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1718		2590
1719	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1720	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1721		2595
1722	Will never block.	2596	Will never block.
1723		2597
1724	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1725		2599
…		…
1745	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1746	my ($self) = @_;	2620	my ($self) = @_;
1747		2621
1748	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1749		2623
		2624	++$self->{_link_recursion};
		2625
1750	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1751		2627
1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1753	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1754		2630
1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1756	}	2632	}
1757		2633
1758	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1759	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1760		2638
1761	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1762		2640
1763	unless ($map) {	2641	unless ($map) {
1764	# restore original map position	2642	# restore original map position
…		…
1775	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1776	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1777		2655
1778	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1779	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1780	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1781		2659
1782	$map->load;	2660	$map->load;
1783	$map->load_diag;	2661	$map->load_neighbours;
1784		2662
1785	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1786	$self->activate_recursive;	2670	$self->activate_recursive;
1787	$self->enter_map ($map, $x, $y);
1788	}
1789
1790	cf::player->attach (
1791	on_logout => sub {
1792	my ($pl) = @_;
1793
1794	# abort map switching before logout
1795	if ($pl->ob->{_link_pos}) {
1796	cf::sync_job {
1797	$pl->ob->leave_link
1798	};
1799	}
1800	},	2671	}
1801	on_login => sub {
1802	my ($pl) = @_;
1803		2672
1804	# try to abort aborted map switching on player login :)	2673	}
1805	# should happen only on crashes
1806	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;
1808	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);
1815	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;
1817	})->prio (2);
1818	}
1819	},
1820	);
1821		2674
1822	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1823		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1824	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1825		2689
1826	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1827	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1828		2701
1829	$self->enter_link;	2702	$self->enter_link;
1830		2703
1831	(async {	2704	(async {
1832	my $map = cf::map::find $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1833	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1834		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1835	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1836	# if $map;
1837
1838	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1839		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1840	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1841	})->prio (1);	2750	})->prio (1);
1842	}	2751	}
1843		2752
1844	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1845		2754
…		…
1865	}	2774	}
1866		2775
1867	sub prepare_random_map {	2776	sub prepare_random_map {
1868	my ($exit) = @_;	2777	my ($exit) = @_;
1869		2778
1870	my $guard = cf::lock_acquire "exit_prepare:$exit";
1871
1872	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1873	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1874	# that depends on the exit object	2781	# that depends on the exit object
1875		2782
1876	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1877		2784
1878	if ($exit->map) {	2785	if ($exit->map) {
1879	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1880	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1881	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1882	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1883	}	2792	}
1884		2793
1885	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1886		2795
1887	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1888	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1889	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1890		2799
1891	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1892	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1893	undef $fh;	2802	undef $fh;
1894	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1895		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1896	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1897	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1898	}	2811	}
1899	}	2812	}
1900		2813
1901	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1902	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1903		2816
1904	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1905		2818
1906	if ($exit->slaying eq "/!") {
1907	#TODO: this should de-fi-ni-te-ly not be a sync-job
1908	cf::sync_job { prepare_random_map $exit };
1909	}
1910
1911	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1912	my $hp = $exit->stats->hp;
1913	my $sp = $exit->stats->sp;
1914
1915	$self->enter_link;	2819	$self->enter_link;
1916		2820
1917	(async {	2821	(async {
1918	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1919	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
		2831	prepare_random_map $exit
		2832	if $exit->slaying eq "/!";
		2833	}
		2834
		2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
		2838
1920	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
1921		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1922	1;	2845	1
1923	}) {	2846	}) {
1924	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1925	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1926	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1927	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1928		2851
1929	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1930	$self->leave_link;	2853	$self->leave_link;
1931	}	2854	}
1932	})->prio (1);	2855	})->prio (1);
…		…
1945		2868
1946	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1947	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1948		2871
1949	utf8::encode $text;	2872	utf8::encode $text;
1950	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1951	}	2874	}
1952		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1953		3097
1954	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1955		3099
1956	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1957	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1958	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1959		3103
1960	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1961	reliable at some point in the future.	3105	become reliable at some point in the future.
1962		3106
1963	=cut	3107	=cut
1964		3108
1965	sub cf::client::query {	3109	sub cf::client::query {
1966	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1974	utf8::encode $text;	3118	utf8::encode $text;
1975	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1976		3120
1977	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1978	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1979	}	3125	}
1980		3126
1981	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1982	on_reply => sub {	3133	on_reply => sub {
1983	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1984		3135
1985	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1986	# get handled first	3137	# get handled first
1987	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1988	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1989		3140
1990	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1991		3143
1992	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1993		3145
1994	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1995	if (@$queue) {	3147	if (@$queue) {
…		…
1997	} else {	3149	} else {
1998	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1999	}	3151	}
2000	}	3152	}
2001	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
2002	);	3180	);
2003		3181
2004	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2005		3183
2006	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022		3200
2023	$coro	3201	$coro
2024	}	3202	}
2025		3203
2026	cf::client->attach (	3204	cf::client->attach (
2027	on_destroy => sub {	3205	on_client_destroy => sub {
2028	my ($ns) = @_;	3206	my ($ns) = @_;
2029		3207
2030	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2031	},	3209	},
2032	);	3210	);
…		…
2047	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2048	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2049		3227
2050	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2051		3229
2052	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2053		3235
2054	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2055		3237
2056	=pod	3238	=pod
2057		3239
2058	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2059		3241
2060	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2061	cf::object::player player	3247	cf::object::player
2062	cf::player peaceful	3248	player
2063	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2064		3255
2065	=cut	3256	=cut
2066		3257
2067	for (	3258	for (
2068	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2069	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2070	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2071	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2072	) {	3265	) {
2073	no strict 'refs';	3266	no strict 'refs';
2074	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2075	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2093		3286
2094	my $qcode = $code;	3287	my $qcode = $code;
2095	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2096	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2097		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2098	local $_;	3294	local $_;
2099	local @safe::cf::_safe_eval_args = values %vars;
2100		3295
2101	my $eval =	3296	my $eval =
2102	"do {\n"	3297	"do {\n"
2103	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2104	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2105	. $code	3300	. $code
2106	. "\n}"	3301	. "\n}"
2107	;	3302	;
2108		3303
		3304	if ($CFG{safe_eval}) {
2109	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2110	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2111	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2112		3313
2113	if ($@) {	3314	if ($@) {
2114	warn "$@";	3315	warn "$@";
2115	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2116	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2135	=cut	3336	=cut
2136		3337
2137	sub register_script_function {	3338	sub register_script_function {
2138	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2139		3340
2140	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2141	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2142	}	3343	}
2143		3344
2144	=back	3345	=back
2145		3346
2146	=cut	3347	=cut
2147		3348
2148	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
2149		3351
2150	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
2151		3354
2152	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
2153	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
2154	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
2155		3358
2156	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2157	using it, it should be unique.
2158		3360
2159	=over 4	3361	warn "loading facedata from $path\n";
2160		3362
2161	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
2162		3366
2163	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
2164	modified. After modifications, you have to call C<cf::db_dirty> or
2165	C<cf::db_sync>.
2166		3368
2167	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2168		3371
2169	Returns a single value from the database	3372	# patch in the exptable
2170		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2171	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
2172		3375	type => FT_RSRC,
2173	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
2174	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
2175
2176	=item cf::db_put $family => $key => $value
2177
2178	Stores the given C<$value> in the family hash. Updates are delayed, if you
2179	want the data to be synced to disk immediately, use C<cf::db_sync>.
2180
2181	=item cf::db_dirty
2182
2183	Marks the database as dirty, to be updated at a later time.
2184
2185	=item cf::db_sync
2186
2187	Immediately write the database to disk I<if it is dirty>.
2188
2189	=cut
2190
2191	our $DB;
2192
2193	{
2194	my $path = cf::localdir . "/database.pst";
2195
2196	sub db_load() {
2197	$DB = stat $path ? Storable::retrieve $path : { };
2198	}	3378	};
		3379	cf::cede_to_tick;
2199		3380
2200	my $pid;
2201
2202	sub db_save() {
2203	waitpid $pid, 0 if $pid;
2204	if (0 == ($pid = fork)) {
2205	$DB->{_meta}{version} = 1;
2206	Storable::nstore $DB, "$path~";
2207	rename "$path~", $path;
2208	cf::_exit 0 if defined $pid;
2209	}
2210	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
2211		3383
2212	my $dirty;	3384	while (my ($face, $info) = each %$faces) {
		3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2213		3386
2214	sub db_sync() {	3387	cf::face::set_visibility $idx, $info->{visibility};
2215	db_save if $dirty;	3388	cf::face::set_magicmap $idx, $info->{magicmap};
2216	undef $dirty;	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2217	}	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2218		3391
2219	my $idle = Event->idle (	3392	cf::cede_to_tick;
2220	reentrant => 0,
2221	min => 10,
2222	max => 20,
2223	repeat => 0,
2224	data => WF_AUTOCANCEL,
2225	cb => \&db_sync,
2226	);
2227
2228	sub db_dirty() {
2229	$dirty = 1;
2230	$idle->start;
2231	}
2232
2233	sub db_get($;$) {
2234	@_ >= 2
2235	? $DB->{$_[0]}{$_[1]}
2236	: ($DB->{$_[0]} ||= { })
2237	}
2238
2239	sub db_put($$;$) {
2240	if (@_ >= 3) {
2241	$DB->{$_[0]}{$_[1]} = $_[2];
2242	} else {
2243	$DB->{$_[0]} = $_[1];
2244	}
2245	db_dirty;
2246	}
2247
2248	cf::global->attach (
2249	prio => 10000,
2250	on_cleanup => sub {
2251	db_sync;
2252	},	3393	}
2253	);
2254	}
2255		3394
2256	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
2257	# the server's main()	3396	next unless $info->{smooth};
2258		3397
2259	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
		3473	sub load_resource_file($) {
		3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
		3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2260	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2261	or return;	3527	or return;
2262		3528
2263	local $/;	3529	local $/;
2264	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2265		3531
2266	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2267		3533
2268	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2269	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2270		3536
2271	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2273	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2274	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2275	};	3541	};
2276	warn $@ if $@;	3542	warn $@ if $@;
2277	}	3543	}
		3544
		3545	warn "finished reloading resource files\n";
		3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2278	}	3574	}
2279		3575
2280	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2281	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2282	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2284	(async {	3589	(async {
2285	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2286	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2287	};	3593	};
2288		3594
2289	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2290	db_load;	3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
		3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2291	load_extensions;	3618	load_extensions;
2292		3619
2293	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2294	Event::loop;	3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2295	}	3633	}
2296		3634
2297	#############################################################################	3635	#############################################################################
2298	# initialisation and cleanup	3636	# initialisation and cleanup
2299		3637
2300	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2301	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2302	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2303	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2304	reentrant => 0,
2305	data => WF_AUTOCANCEL,
2306	signal => $signal,
2307	prio => 0,
2308	cb => sub {
2309	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2310	},
2311	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2312	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2313	}	3734	}
2314		3735
2315	sub emergency_save() {	3736	sub emergency_save() {
2316	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2317		3738
2318	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2319		3740
2320	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2321	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2322	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2323	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2324	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2325	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2326	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2327	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2328	$pl->save;	3755	$pl->save;
2329	}	3756	}
2330	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2331		3758
2332	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2333	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2334	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2335	$map->valid or next;	3762	$map->valid or next;
2336	$map->save;	3763	$map->save;
2337	}	3764	}
2338	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2339	};	3774	};
2340		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2341	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2342	}	3782	}
2343		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
		3817	}
		3818
2344	sub reload() {	3819	sub do_reload_perl() {
2345	# can/must only be called in main	3820	# can/must only be called in main
2346	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2347	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2348	return;	3823	return;
2349	}	3824	}
2350		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2351	warn "reloading...";	3831	warn "reloading...";
2352		3832
2353	warn "cancelling server ticker";	3833	warn "entering sync_job";
2354	$TICK_WATCHER->cancel;
2355		3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2356	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2357		3839
2358	eval {	3840	warn "syncing database to disk";
		3841	BDB::db_env_txn_checkpoint $DB_ENV;
		3842
2359	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2360		3844
2361	warn "syncing database to disk";
2362	cf::db_sync;
2363
2364	warn "cancelling all WF_AUTOCANCEL watchers";
2365	for (Event::all_watchers) {
2366	$_->cancel if $_->data & WF_AUTOCANCEL;
2367	}
2368
2369	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2370	for (;;) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2371	IO::AIO::flush;	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2372	Coro::cede;
2373	last unless IO::AIO::nreqs;
2374	warn "iterate...";
2375	}
2376
2377	warn "cancelling all extension coros";
2378	$_->cancel for values %EXT_CORO;
2379	%EXT_CORO = ();
2380
2381	warn "removing commands";
2382	%COMMAND = ();
2383
2384	warn "removing ext commands";
2385	%EXTCMD = ();
2386
2387	warn "unloading/nuking all extensions";
2388	for my $pkg (@EXTS) {
2389	warn "... unloading $pkg";
2390
2391	if (my $cb = $pkg->can ("unload")) {
2392	eval {
2393	$cb->($pkg);
2394	1
2395	} or warn "$pkg unloaded, but with errors: $@";
2396	}	3848	}
2397		3849
2398	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2399	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2400	}	3852	%EXT_CORO = ();
2401		3853
2402	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2403	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2404	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2405		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2406	warn "... unloading $k";	3863	warn "... unloading $pkg";
2407	delete $INC{$k};
2408		3864
2409	$k =~ s/\.pm$//;
2410	$k =~ s/\//::/g;
2411
2412	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2413	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2414	}	3874	}
2415		3875
2416	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2417	}	3891	}
2418		3892
2419	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2420	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2421	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2422		3896
2423	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2424	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2425		3900
2426	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2427	# and global variables created in xs	3902	# and global variables created in xs
2428	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2429		3904
2430	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2431		3906
2432	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2433	require cf;	3908	require cf;
2434	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2435		3910
2436	warn "loading config and database again";	3911	warn "loading config and database again";
2437	cf::cfg_load;	3912	cf::reload_config;
2438	cf::db_load;
2439		3913
2440	warn "loading extensions";	3914	warn "loading extensions";
2441	cf::load_extensions;	3915	cf::load_extensions;
2442		3916
		3917	if ($REATTACH_ON_RELOAD) {
2443	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2444	_global_reattach;	3919	_global_reattach; # objects, sockets
2445	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2446	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
2447		3925
2448	warn "restarting server ticker";	3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
2449		3928
2450	$TICK_WATCHER->start;	3929	warn "leaving sync_job";
		3930
		3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2451	};	3958	};
2452		3959	}
2453	if ($@) {
2454	warn $@;
2455	warn "error while reloading, exiting.";
2456	exit 1;
2457	}
2458
2459	warn "reloaded";
2460	};
2461
2462	our $RELOAD_WATCHER; # used only during reload
2463		3960
2464	register_command "reload" => sub {	3961	register_command "reload" => sub {
2465	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2466		3963
2467	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2468	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2469		3966	async {
2470	# doing reload synchronously and two reloads happen back-to-back,	3967	$Coro::current->{desc} = "perl_reload";
2471	# coro crashes during coro_state_free->destroy here.
2472
2473	$RELOAD_WATCHER ||= Event->timer (
2474	reentrant => 0,
2475	after => 0,
2476	data => WF_AUTOCANCEL,
2477	cb => sub {
2478	reload;	3968	reload_perl;
2479	undef $RELOAD_WATCHER;
2480	},
2481	);	3969	};
2482	}	3970	}
2483	};	3971	};
2484		3972
2485	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2486		3974
2487	my $bug_warning = 0;	3975	my $bug_warning = 0;
2488		3976
2489	$TICK_WATCHER = Event->timer (	3977	our @WAIT_FOR_TICK;
2490	reentrant => 0,	3978	our @WAIT_FOR_TICK_BEGIN;
2491	parked => 1,	3979
2492	prio => 0,	3980	sub wait_for_tick {
2493	at => $NEXT_TICK || $TICK,	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2494	data => WF_AUTOCANCEL,	3982
2495	cb => sub {	3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
2496	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2497	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2498	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2499	return;	4000	return;
2500	}	4001	}
2501		4002
2502	$NOW = Event::time;
2503
2504	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2505	$RUNTIME += $TICK;
2506	$NEXT_TICK += $TICK;
2507		4004
2508	$WAIT_FOR_TICK->broadcast;	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2509	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2510		4006
2511	Event::sweep;	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2512	Coro::cede_notself;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2513		4009	Coro::async_pool {
2514	# my $AFTER = Event::time;	4010	$Coro::current->{desc} = "runtime saver";
2515	# warn $AFTER - $NOW;#d#
2516
2517	# if we are delayed by four ticks or more, skip them all
2518	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2519
2520	$TICK_WATCHER->at ($NEXT_TICK);
2521	$TICK_WATCHER->start;
2522	},
2523	);
2524
2525	IO::AIO::max_poll_time $TICK * 0.1;
2526
2527	undef $Coro::AIO::WATCHER;
2528	$AIO_POLL_WATCHER = Event->io (
2529	reentrant => 0,
2530	fd => IO::AIO::poll_fileno,
2531	poll => 'r',
2532	prio => 6,
2533	data => WF_AUTOCANCEL,
2534	cb => \&IO::AIO::poll_cb,
2535	);
2536
2537	$WRITE_RUNTIME_WATCHER = Event->timer (
2538	reentrant => 0,
2539	data => WF_AUTOCANCEL,
2540	after => 1,
2541	interval => 10,
2542	prio => 6, # keep it lowest so it acts like a watchdog
2543	cb => Coro::unblock_sub {
2544	write_runtime	4011	write_runtime_sync
2545	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
		4013	};
2546	},	4014	}
2547	);	4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
		4034
		4035	{
		4036	# configure BDB
		4037
		4038	BDB::min_parallel 16;
		4039	BDB::max_poll_reqs $TICK * 0.1;
		4040	$AnyEvent::BDB::WATCHER->priority (1);
		4041
		4042	unless ($DB_ENV) {
		4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4049
		4050	cf::sync_job {
		4051	eval {
		4052	BDB::db_env_open
		4053	$DB_ENV,
		4054	$BDBDIR,
		4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4057	0666;
		4058
		4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4060	};
		4061
		4062	cf::cleanup "db_env_open(db): $@" if $@;
		4063	};
		4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
		4075	}
		4076
		4077	{
		4078	# configure IO::AIO
		4079
		4080	IO::AIO::min_parallel 8;
		4081	IO::AIO::max_poll_time $TICK * 0.1;
		4082	undef $AnyEvent::AIO::WATCHER;
		4083	}
		4084
		4085	my $_log_backtrace;
		4086
		4087	sub _log_backtrace {
		4088	my ($msg, @addr) = @_;
		4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
		4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2548		4130
2549	END { cf::emergency_save }	4131	END { cf::emergency_save }
2550		4132
2551	1	4133	1
2552		4134

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