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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.237 by root, Fri Apr 13 05:08:51 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
21	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
22		54
		55	use JSON::XS 2.01 ();
23	use BDB ();	56	use BDB ();
24	use Data::Dumper;	57	use Data::Dumper;
25	use Digest::MD5;
26	use Fcntl;	58	use Fcntl;
27	use YAML::Syck ();	59	use YAML::XS ();
28	use IO::AIO 2.32 ();	60	use IO::AIO ();
29	use Time::HiRes;	61	use Time::HiRes;
30	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
31		66
32	# configure various modules to our taste	67	# configure various modules to our taste
33	#	68	#
34	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37		77
38	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
39		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		80
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		82
47	our %COMMAND = ();	83	our %COMMAND = ();
48	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
49		85
50	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
54		91
55	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	93	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
58		96
59	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	98	our $DATADIR = datadir;
61	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 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(!)
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	121	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
69		130
70	our %CFG;	131	our %CFG;
71		132
72	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
74		136
75	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
83		140
84	# 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 ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		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 $REALLY_UNLOOP; # never set to true, please :)
		153
87	binmode STDOUT;	154	binmode STDOUT;
88	binmode STDERR;	155	binmode STDERR;
89		156
90	# read virtual server time, if available	157	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
92	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
93	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
94	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
95	}	162	}
96		163
97	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
98	mkdir cf::localdir . "/" . cf::playerdir;	165
99	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
100	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		168
104	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
105		170
106	sub cf::map::normalise;	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::"} };
107		187
108	#############################################################################	188	#############################################################################
109		189
110	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
111		191
…		…
118	=item $cf::RUNTIME	198	=item $cf::RUNTIME
119		199
120	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
121	every server tick.	201	every server tick.
122		202
123	=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
124		206
125	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
126	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.
127		211
128	=item $cf::NOW	212	=item $cf::NOW
129		213
130	The time of the last (current) server tick.	214	The time of the last (current) server tick.
131		215
132	=item $cf::TICK	216	=item $cf::TICK
133		217
134	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
135		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
136	=item %cf::CFG	230	=item %cf::CFG
137		231
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
139	from wherever your confdir points to.	233	from wherever your confdir points to.
140		234
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		236
143	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
144	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
145	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.
146	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.
147		252
148	=back	253	=back
149		254
150	=cut	255	=cut
151		256
152	BEGIN {	257	$Coro::State::WARNHOOK = sub {
153	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	258	my $msg = join "", @_;
155	utf8::encode $msg;
156		259
157	$msg .= "\n"	260	$msg .= "\n"
158	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
159		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
160	LOG llevError, $msg;	265	LOG llevError, $msg;
161	};	266	};
162	}	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	};
163		281
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		289
171	# 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
172	# within the Safe compartment.	291	# within the Safe compartment.
173	for my $pkg (qw(	292	for my $pkg (qw(
174	cf::global cf::attachable	293	cf::global cf::attachable
175	cf::object cf::object::player	294	cf::object cf::object::player
176	cf::client cf::player	295	cf::client cf::player
177	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
178	cf::map cf::party cf::region	298	cf::party cf::region
179	)) {	299	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	301	}
183		302
184	$Event::DIED = sub {	303	$EV::DIED = sub {
185	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
186	};	305	};
		306
		307	#############################################################################
187		308
188	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
189		310
190	=over 4	311	=over 4
191		312
…		…
210	$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;
211	$d	332	$d
212	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
213	}	334	}
214		335
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
218		337
219	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
220		339
221	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
222		341
223	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
224		343
		344	=cut
		345
		346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		347
		348	sub encode_json($) { $json_coder->encode ($_[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;
		363	}
		364
225	=item cf::lock_wait $string	365	=item cf::lock_wait $string
226		366
227	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
228		368
229	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
230		370
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
234	returned.	374	returned.
235		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
236	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
237	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
238		381
239	=cut	382	=item $locked = cf::lock_active $string
240		383
241	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
242		389
243	sub lock_wait($) {	390	sub lock_wait($) {
244	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	392	}
252		393
253	sub lock_acquire($) {	394	sub lock_acquire($) {
254	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
255		397
256	# wait, to be sure we are not locked	398	sub lock_active($) {
257	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	400	}
266		401
267	sub freeze_mainloop {	402	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
269		404
270	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	406	}
		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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
272	};	472	}
273	$TICK_WATCHER->stop;	473	};
274	$guard	474
		475	sub get_slot($;$$) {
		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	$sig->wait;
275	}	488	}
276		489
277	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
278		491
279	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		497
285	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
286		499
287	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
288		501
289	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
292		506
293	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
296	fast or be very important.	510	fast or be very important.
…		…
299		513
300	sub sync_job(&) {	514	sub sync_job(&) {
301	my ($job) = @_;	515	my ($job) = @_;
302		516
303	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
304	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
306		522
307	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	524
309	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
310		526
311	my $busy = 1;	527	my $busy = 1;
312	my @res;	528	my @res;
313		529
314	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	532	@res = eval { $job->() };
316	warn $@ if $@;	533	warn $@ if $@;
317	undef $busy;	534	undef $busy;
318	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
319		536
320	while ($busy) {	537	while ($busy) {
321	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
322	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
323		548
324	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
325	} else {	550	} else {
326	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
327		552
…		…
347	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
348		573
349	$coro	574	$coro
350	}	575	}
351		576
352	sub write_runtime {	577	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		578
355	my $runtime = cf::localdir . "/runtime";	579	Executes the given code block with the given arguments in a seperate
		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.
356		583
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	584	=cut
358	or return;
359		585
360	my $value = $cf::RUNTIME + 90 + 10;	586	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	587	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		588
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	589	# we seemingly have to make a local copy of the whole thing,
365	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
366		592
367	# always fsync - this file is important	593	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	594	reset_signals;
369	and return;	595	&$cb
		596	}, @args;
370		597
371	close $fh	598	wantarray ? @res : $res[-1]
372	or return;	599	}
373		600
374	aio_rename "$runtime~", $runtime	601	sub objinfo {
375	and return;
376
377	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"
378	}	764	}
379		765
380	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
381		767
382	Log a datalog packet of the given type with the given key-value pairs.	768	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		780
395	#############################################################################	781	#############################################################################
396		782
397	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
398		784
399	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
400	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")
401	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
402		788
403	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>
404	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
405	crossfire+).	791	Deliantra).
406		792
407	=over 4	793	=over 4
408		794
409	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
410		796
…		…
454	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
455		841
456	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
458		844
459	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
460	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.
461		847
462	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
463		849
464	=over 4	850	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
574		960
575	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		965
580	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	967	my $pkg = shift @arg;
582		968
583	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
613	}	999	}
614		1000
615	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
616	} else {	1002	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	1004	}
619		1005
620	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
621	}	1007	}
622		1008
…		…
624	if (ref $_[0]) {	1010	if (ref $_[0]) {
625	_object_attach @_;	1011	_object_attach @_;
626	} else {	1012	} else {
627	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
628	}	1014	}
		1015	_recalc_want;
629	};	1016	};
630		1017
631	# all those should be optimised	1018	# all those should be optimised
632	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1024	reattach ($obj);
638	} else {	1025	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
640	}	1027	}
		1028	_recalc_want;
641	};	1029	};
642		1030
643	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
645		1033
…		…
660	";	1048	";
661	die if $@;	1049	die if $@;
662	}	1050	}
663		1051
664	our $override;	1052	our $override;
665	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?
666		1054
667	sub override {	1055	sub override {
668	$override = 1;	1056	$override = 1;
669	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
670	}	1058	}
671		1059
672	sub do_invoke {	1060	sub do_invoke {
673	my $event = shift;	1061	my $event = shift;
674	my $callbacks = shift;	1062	my $callbacks = shift;
675		1063
676	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
677		1065
678	local $override;	1066	local $override;
679		1067
680	for (@$callbacks) {	1068	for (@$callbacks) {
681	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
690	}	1078	}
691		1079
692	0	1080	0
693	}	1081	}
694		1082
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1084
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1086
699	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
700		1088
701	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
702	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
703	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1092
705	=back	1093	=back
706		1094
707	=cut	1095	=cut
708		1096
709	#############################################################################	1097	#############################################################################
710	# 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, $ob2
		1140	}
711		1141
712	sub reattach {	1142	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1144	my ($obj) = @_;
715		1145
		1146	# no longer needed after getting rid of delete_package?
716	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
717		1148
718	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
719		1150
720	@$registry = ();	1151	@$registry = ();
721		1152
…		…
736	cf::attachable->attach (	1167	cf::attachable->attach (
737	prio => -1000000,	1168	prio => -1000000,
738	on_instantiate => sub {	1169	on_instantiate => sub {
739	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
740		1171
741	$data = from_json $data;	1172	$data = decode_json $data;
742		1173
743	for (@$data) {	1174	for (@$data) {
744	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
745		1176
746	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1193	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
764		1195
765	sync_job {	1196	sync_job {
766	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
769		1202
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1206	if ($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;
		1208	aio_fsync $fh;
		1209	}
774	close $fh;	1210	aio_close $fh;
775		1211
776	if (@$objs) {	1212	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1217	if ($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;
		1219	aio_fsync $fh;
		1220	}
782	close $fh;	1221	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
784	}	1223	}
785	} else {	1224	} else {
786	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
787	}	1226	}
788		1227
789	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1232	} else {
791	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
792	}	1234	}
793	} else {	1235	} else {
794	aio_unlink $filename;	1236	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
796	}	1238	}
797	}	1239	};
798	}	1240	}
799		1241
800	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
802		1244
…		…
814	or return;	1256	or return;
815		1257
816	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
818	or return;	1260	or return;
		1261
819	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
820	}	1264	}
821		1265
		1266	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
824	return ($data, $av);	1271	($data, $av)
825	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
826		1279
827	#############################################################################	1280	#############################################################################
828	# command handling &c	1281	# command handling &c
829		1282
830	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1297	}
845		1298
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1300
848	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.
849		1306
850	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
851	called.	1308	called.
852		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
853	=cut	1321	=cut
854		1322
855	sub register_extcmd {	1323	sub register_extcmd {
856	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
857		1325
858	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
859	}	1327	}
860		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
861	cf::player->attach (	1337	cf::player->attach (
862	on_command => sub {	1338	on_unknown_command => sub {
863	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
864		1340
865	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
866	or return;	1342	or return;
867		1343
…		…
872	cf::override;	1348	cf::override;
873	},	1349	},
874	on_extcmd => sub {	1350	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
876		1352
877	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1354
879	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
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
885	} else {	1370	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1372	}
888		1373
889	cf::override;	1374	cf::override;
890	},	1375	},
891	);	1376	);
892		1377
		1378	# "readahead" all extensions
893	sub load_extension {	1379	sub cache_extensions {
894	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
895		1381
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1385	}
921	die $@;
922	}	1386	};
923		1387
924	push @EXTS, $pkg;	1388	$grp
925	}	1389	}
926		1390
927	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
928	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1396	next unless -r $path;
930	eval {	1397
931	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 $active;
		1460	}
932	1	1461	}
933	} or warn "$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	}
934	}	1472	};
935	}	1473	}
936		1474
937	#############################################################################	1475	#############################################################################
938		1476
		1477	=back
		1478
939	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
940		1480
941	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
942		1482
943	=cut	1483	=cut
944		1484
945	package cf::player;	1485	package cf::player;
946		1486
…		…
948		1488
949	=head3 cf::player	1489	=head3 cf::player
950		1490
951	=over 4	1491	=over 4
952		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
953	=item cf::player::find $login	1507	=item cf::player::find $login
954		1508
955	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
956		1510
957	=cut	1511	=cut
958		1512
959	sub playerdir($) {	1513	sub playerdir($) {
960	cf::localdir	1514	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1516	}
966		1517
967	sub path($) {	1518	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1529
979	sub exists($) {	1530	sub exists($) {
980	my ($login) = @_;	1531	my ($login) = @_;
981		1532
982	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
984	}	1535	}
985		1536
986	sub find($) {	1537	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1539	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
999		1550
1000	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
1001	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;
1002	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1003	}	1560	}
1004	}	1561	}
1005	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
1006		1576
1007	sub save($) {	1577	sub save($) {
1008	my ($pl) = @_;	1578	my ($pl) = @_;
1009		1579
1010	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1015	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1016		1586
1017	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1019		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
1020	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1021	Coro::cede;	1596	cf::cede_to_tick;
1022	}	1597	}
1023		1598
1024	sub new($) {	1599	sub new($) {
1025	my ($login) = @_;	1600	my ($login) = @_;
1026		1601
…		…
1032	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1033		1608
1034	$self	1609	$self
1035	}	1610	}
1036		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
1037	=item $pl->quit_character	1622	=item $pl->quit_character
1038		1623
1039	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1041		1626
…		…
1045	my ($pl) = @_;	1630	my ($pl) = @_;
1046		1631
1047	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1048		1633
1049	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1050	$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
1051		1636
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1056		1642
1057	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1089		1675
1090	=cut	1676	=cut
1091		1677
1092	sub list_logins {	1678	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1680	or return [];
1095		1681
1096	my @logins;	1682	my @logins;
1097		1683
1098	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") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1102		1694
1103	utf8::decode $login;	1695	utf8::decode $login;
1104	push @logins, $login;	1696	push @logins, $login;
1105	}	1697	}
1106		1698
1107	\@logins	1699	\@logins
1108	}	1700	}
1109		1701
1110	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1111		1705
1112	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1113	player. May block.	1707	player. May block.
1114		1708
1115	=cut	1709	=cut
…		…
1133	}	1727	}
1134		1728
1135	\@paths	1729	\@paths
1136	}	1730	}
1137		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1138	=item $player->ext_reply ($msgid, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1139		1737
1140	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1141		1739
1142	=cut	1740	=cut
1143		1741
1144	sub ext_reply($$%) {	1742	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1146		1744
1147	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1746	}
1151		1747
1152	=item $player->ext_event ($type, %msg)	1748	=item $player->ext_msg ($type, @msg)
1153		1749
1154	Sends an ext event to the client.	1750	Sends an ext event to the client.
1155		1751
1156	=cut	1752	=cut
1157		1753
1158	sub ext_event($$%) {	1754	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1755	my ($self, $type, @msg) = @_;
1160		1756
1161	$self->ns->ext_event ($type, %msg);	1757	$self->ns->ext_msg ($type, @msg);
1162	}	1758	}
1163		1759
1164	package cf;	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	}
1165		1790
1166	=back	1791	=back
1167
1168		1792
1169	=head3 cf::map	1793	=head3 cf::map
1170		1794
1171	=over 4	1795	=over 4
1172		1796
…		…
1184	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1185	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1186		1810
1187	sub generate_random_map {	1811	sub generate_random_map {
1188	my ($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
1189	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1190	$self->_create_random_map (	1817	$self->_create_random_map (
1191	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1192	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1193	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1194	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1195	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1196	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1197	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1219		1846
1220	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1221	}	1848	}
1222		1849
1223	# also paths starting with '/'	1850	# also paths starting with '/'
1224	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1225		1852
1226	sub thawer_merge {	1853	sub thawer_merge {
1227	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1228		1855
1229	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1230	local $self->{path};	1857	local $self->{path};
1231	local $self->{load_path};	1858	local $self->{load_path};
1232	local $self->{deny_save};
1233	local $self->{deny_reset};
1234		1859
1235	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1236	}	1861	}
1237		1862
1238	sub normalise {	1863	sub normalise {
…		…
1285	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1286	return $self;	1911	return $self;
1287	}	1912	}
1288	}	1913	}
1289		1914
1290	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1291	()	1916	()
1292	}	1917	}
1293		1918
1294	sub init {	1919	sub init {
1295	my ($self) = @_;	1920	my ($self) = @_;
…		…
1310		1935
1311	# the original (read-only) location	1936	# the original (read-only) location
1312	sub load_path {	1937	sub load_path {
1313	my ($self) = @_;	1938	my ($self) = @_;
1314		1939
1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1316	}	1941	}
1317		1942
1318	# the temporary/swap location	1943	# the temporary/swap location
1319	sub save_path {	1944	sub save_path {
1320	my ($self) = @_;	1945	my ($self) = @_;
1321		1946
1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1324	}	1949	}
1325		1950
1326	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1327	sub uniq_path {	1952	sub uniq_path {
1328	my ($self) = @_;	1953	my ($self) = @_;
1329		1954
1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1332	}	1957	}
1333		1958
1334	# and all this just because we cannot iterate over	1959	sub decay_objects {
1335	# all maps in C++...
1336	sub change_all_map_light {
1337	my ($change) = @_;	1960	my ($self) = @_;
1338		1961
1339	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1340	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1341	}	1965	}
1342		1966
1343	sub unlink_save {	1967	sub unlink_save {
1344	my ($self) = @_;	1968	my ($self) = @_;
1345		1969
…		…
1350		1974
1351	sub load_header_from($) {	1975	sub load_header_from($) {
1352	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1353		1977
1354	utf8::encode $path;	1978	utf8::encode $path;
1355	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1356	# or return;
1357
1358	$self->_load_header ($path)
1359	or return;	1980	or return;
		1981
		1982	$self->_load_header ($f)
		1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1360		1987
1361	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1362		1989
1363	1	1990	1
1364	}	1991	}
…		…
1403	$self->load_header_orig	2030	$self->load_header_orig
1404	or return;	2031	or return;
1405	$self->prepare_orig;	2032	$self->prepare_orig;
1406	}	2033	}
1407		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 $self->default_region;
		2040
1408	1	2041	1
1409	}	2042	}
1410		2043
1411	sub find;	2044	sub find;
1412	sub find {	2045	sub find {
1413	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1414		2047
1415	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1416		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1417	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1418		2052
1419	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1420	my $guard = cf::lock_acquire "map_find:$path";
1421	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1422	or return;	2055	or return;
1423		2056
1424	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1425		2058
1426	$map->load_header	2059	$map->load_header
1427	or return;	2060	or return;
1428		2061
1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1430	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1431	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1432	$map->reset;	2067	$map->reset;
1433	undef $guard;
1434	return find $path;	2068	return find $path;
1435	}	2069	}
1436		2070
1437	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1438	}	2072	}
1439	}	2073	}
1440		2074
1441	sub pre_load { }	2075	sub pre_load { }
1442	sub post_load { }	2076	#sub post_load { } # XS
1443		2077
1444	sub load {	2078	sub load {
1445	my ($self) = @_;	2079	my ($self) = @_;
1446		2080
1447	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1448		2082
1449	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1450	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1451		2087
		2088	return unless $self->valid;
1452	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1453		2090
1454	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1455		2092
1456	$self->alloc;	2093	$self->alloc;
1457		2094
1458	$self->pre_load;	2095	$self->pre_load;
		2096	cf::cede_to_tick;
1459		2097
1460	$self->_load_objects ($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)
1461	or return;	2101	or return;
1462		2102
1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1464	if delete $self->{load_original};	2104	if delete $self->{load_original};
1465		2105
1466	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1467	utf8::encode $uniq;	2107	utf8::encode $uniq;
1468	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1469	$self->clear_unique_items;	2110	$self->clear_unique_items;
1470	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1471	}	2114	}
1472	}	2115	}
1473		2116
1474	Coro::cede;	2117	$f->resolve_delayed_derefs;
1475		2118
		2119	cf::cede_to_tick;
1476	# now do the right thing for maps	2120	# now do the right thing for maps
1477	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1478
1479	unless ($self->{deny_activate}) {
1480	$self->decay_objects;
1481	$self->fix_auto_apply;
1482	$self->update_buttons;
1483	Coro::cede;
1484	$self->set_darkness_map;
1485	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1486	unless $self->difficulty;	2123	unless $self->difficulty;
1487	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1488	$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);
1489	}	2138	}
1490		2139
1491	$self->post_load;	2140	$self->post_load;
1492
1493	$self->in_memory (cf::MAP_IN_MEMORY);
1494	}	2141	}
1495		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1496	sub customise_for {	2146	sub customise_for {
1497	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1498		2148
1499	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1500	if $self->per_player;	2150	if $self->per_player;
1501		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1502	$self	2155	$self
1503	}	2156	}
1504		2157
1505	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1506	sub load_diag {	2159	sub load_neighbours {
1507	my ($map) = @_;	2160	my ($map) = @_;
1508		2161
1509	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1510		2163
1511	for (0 .. 3) {	2164	for (0 .. 3) {
1512	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1513	or next;	2166	or next;
1514	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1515	or next;	2168	or next;
1516	$neigh->load;	2169	$neigh->load;
1517		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1518	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1519	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1520	}	2175	}
1521		2176
1522	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1523	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1524	or next;	2180	or next;
1525	$neigh->load;	2181	$neigh->load;
1526	}	2182	}
1527	}	2183	}
1528		2184
…		…
1533	}	2189	}
1534		2190
1535	sub do_load_sync {	2191	sub do_load_sync {
1536	my ($map) = @_;	2192	my ($map) = @_;
1537		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1538	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1539	}	2198	}
1540		2199
1541	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1542	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1543		2202
1544	sub find_async {	2203	sub find_async {
1545	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1546		2205
1547	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1548		2207
1549	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1550	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1551	}	2210	}
1552		2211
1553	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1554	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1555	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1556	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1557	my $map = find $path	2219	if (my $map = find $k) {
1558	or next;
1559	$map->load;	2220	$map->load if $v;
		2221	}
1560		2222
1561	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1562	}	2224	}
1563	}	2225	}
1564	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1565	};	2227	};
1566	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1567		2229
1568	()	2230	()
1569	}	2231	}
1570		2232
		2233	# common code, used by both ->save and ->swapout
1571	sub save {	2234	sub _save {
1572	my ($self) = @_;	2235	my ($self) = @_;
1573
1574	my $lock = cf::lock_acquire "map_data:" . $self->path;
1575		2236
1576	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1577		2238
1578	return unless $self->dirty;	2239	return unless $self->dirty;
1579		2240
…		…
1585	return if $self->{deny_save};	2246	return if $self->{deny_save};
1586		2247
1587	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1588		2249
1589	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1590	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1591	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1592		2256
1593	if ($uniq) {	2257	if ($uniq) {
1594	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1595	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1596	} else {	2260	} else {
1597	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1598	}	2262	}
1599	}	2263	}
1600		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1601	sub swap_out {	2273	sub swap_out {
1602	my ($self) = @_;	2274	my ($self) = @_;
1603		2275
1604	# save first because save cedes
1605	$self->save;
1606
1607	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1609	return if $self->players;	2280	return if $self->players;
1610	return if $self->in_memory != cf::MAP_IN_MEMORY;
1611	return if $self->{deny_save};
1612		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
1613	$self->clear;	2291	$self->clear;
1614	$self->in_memory (cf::MAP_SWAPPED);
1615	}	2292	}
1616		2293
1617	sub reset_at {	2294	sub reset_at {
1618	my ($self) = @_;	2295	my ($self) = @_;
1619		2296
1620	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
1622	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1623		2299
1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1626		2302
…		…
1637	my ($self) = @_;	2313	my ($self) = @_;
1638		2314
1639	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2316
1641	return if $self->players;	2317	return if $self->players;
1642	return if $self->isa ("ext::map_per_player");#d#
1643		2318
1644	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
1645		2320
1646	$self->in_memory (cf::MAP_SWAPPED);	2321	$self->in_memory (cf::MAP_SWAPPED);
1647		2322
1648	# need to save uniques path	2323	# need to save uniques path
1649	unless ($self->{deny_save}) {	2324	unless ($self->{deny_save}) {
…		…
1653	if $uniq;	2328	if $uniq;
1654	}	2329	}
1655		2330
1656	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1657		2332
		2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1658	$self->clear;	2335	$self->clear;
1659
1660	$_->clear_links_to ($self) for values %cf::MAP;
1661		2336
1662	$self->unlink_save;	2337	$self->unlink_save;
1663	$self->destroy;	2338	$self->destroy;
1664	}	2339	}
1665		2340
1666	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1667		2342
1668	sub nuke {	2343	sub nuke {
1669	my ($self) = @_;	2344	my ($self) = @_;
1670		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1671	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1672		2350
1673	$self->unlink_save;	2351	$self->unlink_save;
1674		2352
1675	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1676	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1677	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1678	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1679	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1680		2358
1681	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1682		2361
1683	$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	]
1684	}	2399	}
1685		2400
1686	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1687		2402
1688	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1689	instantiated unique items. May block.	2404	instantiated unique items. May block.
1690		2405
1691	=cut	2406	=cut
1692		2407
1693	sub unique_maps() {	2408	sub unique_maps() {
1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1695	or return;	2410	map {
1696
1697	my @paths;
1698
1699	for (@$files) {
1700	utf8::decode $_;	2411	utf8::decode $_;
1701	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1702	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1703		2414	? ()
1704	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1705	}	2417	]
1706
1707	\@paths
1708	}	2418	}
1709		2419
1710	package cf;	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) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
		2447	}
		2448
		2449	\@maps
		2450	}
1711		2451
1712	=back	2452	=back
1713		2453
1714	=head3 cf::object	2454	=head3 cf::object
1715		2455
…		…
1719		2459
1720	=over 4	2460	=over 4
1721		2461
1722	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1723		2463
1724	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.
1725		2466
1726	=cut	2467	=cut
1727		2468
1728	sub inv_recursive_;	2469	sub inv_recursive_;
1729	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1732		2473
1733	sub inv_recursive {	2474	sub inv_recursive {
1734	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1735	}	2476	}
1736		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
1737	package cf;	2506	package cf;
1738		2507
1739	=back	2508	=back
1740		2509
1741	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1747	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>
1748	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
1749	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1750		2519
1751	=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	};
1752		2535
1753	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1754	# with dialog boxes.	2537	# with dialog boxes.
1755	#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
1756	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1758		2541
1759	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1760		2543
1761	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1762	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1763	} 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 {
1764	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1765	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1766	}	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 (@_);
1767	}	2569	}
1768		2570
1769	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1770		2572
1771	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1784		2586
1785	=item $player_object->enter_link	2587	=item $player_object->enter_link
1786		2588
1787	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}>).
1788		2590
1789	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.
1790	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.
1791		2595
1792	Will never block.	2596	Will never block.
1793		2597
1794	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1795		2599
…		…
1815	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1816	my ($self) = @_;	2620	my ($self) = @_;
1817		2621
1818	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1819		2623
		2624	++$self->{_link_recursion};
		2625
1820	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1821		2627
1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1823	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1824		2630
1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1826	}	2632	}
1827		2633
1828	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1829	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1830		2638
1831	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1832		2640
1833	unless ($map) {	2641	unless ($map) {
1834	# restore original map position	2642	# restore original map position
…		…
1845	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1846	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1847		2655
1848	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1849	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1850	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1851		2659
1852	$map->load;	2660	$map->load;
1853	$map->load_diag;	2661	$map->load_neighbours;
1854		2662
1855	return unless $self->contr->active;	2663	return unless $self->contr->active;
1856	$self->activate_recursive;
1857		2664
1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1859	$self->enter_map ($map, $x, $y);	2666	if ($self->enter_map ($map, $x, $y)) {
1860	}	2667	# entering was successful
1861		2668	delete $self->{_link_recursion};
1862	cf::player->attach (	2669	# only activate afterwards, to support waiting in hooks
1863	on_logout => sub {	2670	$self->activate_recursive;
1864	my ($pl) = @_;
1865
1866	# abort map switching before logout
1867	if ($pl->ob->{_link_pos}) {
1868	cf::sync_job {
1869	$pl->ob->leave_link
1870	};
1871	}
1872	},	2671	}
1873	on_login => sub {
1874	my ($pl) = @_;
1875		2672
1876	# try to abort aborted map switching on player login :)	2673	}
1877	# should happen only on crashes
1878	if ($pl->ob->{_link_pos}) {
1879	$pl->ob->enter_link;
1880	(async {
1881	$pl->ob->reply (undef,
1882	"There was an internal problem at your last logout, "
1883	. "the server will try to bring you to your intended destination in a second.",
1884	cf::NDI_RED);
1885	# we need this sleep as the login has a concurrent enter_exit running
1886	# and this sleep increases chances of the player not ending up in scorn
1887	Coro::Timer::sleep 1;
1888	$pl->ob->leave_link;
1889	})->prio (2);
1890	}
1891	},
1892	);
1893		2674
1894	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1895		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
1896	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1897		2689
1898	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1899	my ($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;
1900		2701
1901	$self->enter_link;	2702	$self->enter_link;
1902		2703
1903	(async {	2704	(async {
		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
1904	my $map = eval {	2726	my $map = eval {
1905	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1906	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
		2732	} else {
		2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
		2735
1907	$map	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 $@;
1908	} or	2742	}
1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1910		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1911	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1912	})->prio (1);	2750	})->prio (1);
1913	}	2751	}
1914		2752
1915	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1916		2754
…		…
1936	}	2774	}
1937		2775
1938	sub prepare_random_map {	2776	sub prepare_random_map {
1939	my ($exit) = @_;	2777	my ($exit) = @_;
1940		2778
1941	my $guard = cf::lock_acquire "exit_prepare:$exit";
1942
1943	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1944	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1945	# that depends on the exit object	2781	# that depends on the exit object
1946		2782
1947	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
1949	if ($exit->map) {	2785	if ($exit->map) {
1950	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
1951	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1952	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1953	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1954	}	2792	}
1955		2793
1956	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1957		2795
1958	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1959	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1961		2799
1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1963	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1964	undef $fh;	2802	undef $fh;
1965	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1966		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1967	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1968	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1969	}	2811	}
1970	}	2812	}
1971		2813
1972	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1973	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1974		2816
1975	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1976		2818
1977	if ($exit->slaying eq "/!") {
1978	#TODO: this should de-fi-ni-te-ly not be a sync-job
1979	# the problem is that $exit might not survive long enough
1980	# so it needs to be done right now, right here
1981	cf::sync_job { prepare_random_map $exit };
1982	}
1983
1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985	my $hp = $exit->stats->hp;
1986	my $sp = $exit->stats->sp;
1987
1988	$self->enter_link;	2819	$self->enter_link;
1989		2820
1990	(async {	2821	(async {
1991	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1992	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
1993	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
1994		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
1995	1;	2845	1
1996	}) {	2846	}) {
1997	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1998	. "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. "
1999	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
2000	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
2001		2851
2002	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
…		…
2021		2871
2022	utf8::encode $text;	2872	utf8::encode $text;
2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2024	}	2874	}
2025		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
2026	=item $client->ext_event ($type, %msg)	3063	=item $client->ext_msg ($type, @msg)
2027		3064
2028	Sends an exti event to the client.	3065	Sends an ext event to the client.
2029		3066
2030	=cut	3067	=cut
2031		3068
2032	sub cf::client::ext_event($$%) {	3069	sub cf::client::ext_msg($$@) {
2033	my ($self, $type, %msg) = @_;	3070	my ($self, $type, @msg) = @_;
2034		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
2035	$msg{msgtype} = "event_$type";	3075	push @msg, msgtype => "event_$type";
2036	$self->send_packet ("ext " . cf::to_json \%msg);	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	}
2037	}	3096	}
2038		3097
2039	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
2040		3099
2041	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
2042	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>,
2043	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>.
2044		3103
2045	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
2046	reliable at some point in the future.	3105	become reliable at some point in the future.
2047		3106
2048	=cut	3107	=cut
2049		3108
2050	sub cf::client::query {	3109	sub cf::client::query {
2051	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
2059	utf8::encode $text;	3118	utf8::encode $text;
2060	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2061		3120
2062	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2063	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2064	}	3125	}
2065		3126
2066	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	},
2067	on_reply => sub {	3133	on_reply => sub {
2068	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2069		3135
2070	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2071	# get handled first	3137	# get handled first
…		…
2083	} else {	3149	} else {
2084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2085	}	3151	}
2086	}	3152	}
2087	},	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	},
2088	);	3180	);
2089		3181
2090	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2091		3183
2092	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2108		3200
2109	$coro	3201	$coro
2110	}	3202	}
2111		3203
2112	cf::client->attach (	3204	cf::client->attach (
2113	on_destroy => sub {	3205	on_client_destroy => sub {
2114	my ($ns) = @_;	3206	my ($ns) = @_;
2115		3207
2116	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2117	},	3209	},
2118	);	3210	);
…		…
2133	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2134	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2135		3227
2136	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2137		3229
2138	$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	));
2139		3235
2140	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2141		3237
2142	=pod	3238	=pod
2143		3239
2144	The following functions and methods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2145		3241
2146	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
2147	cf::object::player player	3247	cf::object::player
2148	cf::player peaceful	3248	player
2149	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2150		3255
2151	=cut	3256	=cut
2152		3257
2153	for (	3258	for (
2154	["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)],
2155	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2156	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2157	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2158	) {	3265	) {
2159	no strict 'refs';	3266	no strict 'refs';
2160	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2161	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2179		3286
2180	my $qcode = $code;	3287	my $qcode = $code;
2181	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2182	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2183		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2184	local $_;	3294	local $_;
2185	local @safe::cf::_safe_eval_args = values %vars;
2186		3295
2187	my $eval =	3296	my $eval =
2188	"do {\n"	3297	"do {\n"
2189	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2190	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2191	. $code	3300	. $code
2192	. "\n}"	3301	. "\n}"
2193	;	3302	;
2194		3303
		3304	if ($CFG{safe_eval}) {
2195	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2196	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2197	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	}
2198		3313
2199	if ($@) {	3314	if ($@) {
2200	warn "$@";	3315	warn "$@";
2201	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2202	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2221	=cut	3336	=cut
2222		3337
2223	sub register_script_function {	3338	sub register_script_function {
2224	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2225		3340
2226	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2227	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2228	}	3343	}
2229		3344
2230	=back	3345	=back
2231		3346
2232	=cut	3347	=cut
2233
2234	#############################################################################
2235
2236	=head2 EXTENSION DATABASE SUPPORT
2237
2238	Crossfire maintains a very simple database for extension use. It can
2239	currently store anything that can be serialised using Storable, which
2240	excludes objects.
2241
2242	The parameter C<$family> should best start with the name of the extension
2243	using it, it should be unique.
2244
2245	=over 4
2246
2247	=item $value = cf::db_get $family => $key
2248
2249	Returns a single value from the database.
2250
2251	=item cf::db_put $family => $key => $value
2252
2253	Stores the given C<$value> in the family.
2254
2255	=cut
2256
2257	our $DB;
2258
2259	sub db_init {
2260	unless ($DB) {
2261	$DB = BDB::db_create $DB_ENV;
2262
2263	cf::sync_job {
2264	eval {
2265	$DB->set_flags (BDB::CHKSUM);
2266
2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269	cf::cleanup "db_open(db): $!" if $!;
2270	};
2271	cf::cleanup "db_open(db): $@" if $@;
2272	};
2273
2274	my $path = cf::localdir . "/database.pst";
2275	if (stat $path) {
2276	cf::sync_job {
2277	my $pst = Storable::retrieve $path;
2278
2279	cf::db_put (board => data => $pst->{board});
2280	cf::db_put (guildrules => data => $pst->{guildrules});
2281	cf::db_put (rent => balance => $pst->{rent}{balance});
2282	BDB::db_env_txn_checkpoint $DB_ENV;
2283
2284	unlink $path;
2285	};
2286	}
2287	}
2288	}
2289
2290	sub db_get($$) {
2291	my $key = "$_[0]/$_[1]";
2292
2293	cf::sync_job {
2294	BDB::db_get $DB, undef, $key, my $data;
2295
2296	$! ? ()
2297	: Compress::LZF::sthaw $data
2298	}
2299	}
2300
2301	sub db_put($$$) {
2302	BDB::dbreq_pri 4;
2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2304	}
2305		3348
2306	#############################################################################	3349	#############################################################################
2307	# the server's init and main functions	3350	# the server's init and main functions
2308		3351
2309	sub load_facedata {	3352	sub load_facedata($) {
2310	my $path = sprintf "%s/facedata", cf::datadir;	3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2311		3360
2312	warn "loading facedata from $path\n";	3361	warn "loading facedata from $path\n";
2313		3362
2314	my $facedata;	3363	my $facedata;
2315	0 < aio_load $path, $facedata	3364	0 < aio_load $path, $facedata
…		…
2318	$facedata = Coro::Storable::thaw $facedata;	3367	$facedata = Coro::Storable::thaw $facedata;
2319		3368
2320	$facedata->{version} == 2	3369	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
2323	{	3381	{
2324	my $faces = $facedata->{faceinfo};	3382	my $faces = $facedata->{faceinfo};
2325		3383
2326	while (my ($face, $info) = each %$faces) {	3384	while (my ($face, $info) = each %$faces) {
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2331	Coro::cede;	3391
		3392	cf::cede_to_tick;
2332	}	3393	}
2333		3394
2334	while (my ($face, $info) = each %$faces) {	3395	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3396	next unless $info->{smooth};
		3397
2336	my $idx = cf::face::find $face	3398	my $idx = cf::face::find $face
2337	or next;	3399	or next;
		3400
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3404	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3406	}
2343	Coro::cede;	3407
		3408	cf::cede_to_tick;
2344	}	3409	}
2345	}	3410	}
2346		3411
2347	{	3412	{
2348	my $anims = $facedata->{animinfo};	3413	my $anims = $facedata->{animinfo};
2349		3414
2350	while (my ($anim, $info) = each %$anims) {	3415	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;	3417	cf::cede_to_tick;
2353	}	3418	}
2354		3419
2355	cf::anim::invalidate_all; # d'oh	3420	cf::anim::invalidate_all; # d'oh
2356	}	3421	}
2357		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
2358	1	3442	1
2359	}	3443	}
2360		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
2361	sub reload_resources {	3512	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3513	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3514
2364	load_facedata	3515	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3516	reload_archetypes;
2366	}
2367
2368	sub init {
2369	reload_resources;	3517	reload_regions;
2370	}	3518	reload_treasures;
2371		3519
2372	sub cfg_load {	3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	3527	or return;
2375		3528
2376	local $/;	3529	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2378		3531
2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2380		3533
2381	$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};
2382	$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};
2383		3536
2384	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2386	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2387	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2388	};	3541	};
2389	warn $@ if $@;	3542	warn $@ if $@;
2390	}	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;
2391	}	3574	}
2392		3575
2393	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
2394	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2395	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2396	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#
2397	(async {	3589	(async {
2398	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2399	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2400	};	3593	};
2401		3594
2402	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
		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;
2403	db_init;	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
2404	load_extensions;	3618	load_extensions;
2405		3619
2406	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2407	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;
2408	}	3633	}
2409		3634
2410	#############################################################################	3635	#############################################################################
2411	# initialisation and cleanup	3636	# initialisation and cleanup
2412		3637
2413	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2414	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2415	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2416	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2417	reentrant => 0,
2418	data => WF_AUTOCANCEL,
2419	signal => $signal,
2420	prio => 0,
2421	cb => sub {
2422	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2423	},
2424	);	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
2425	}	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 };
2426	}	3734	}
2427		3735
2428	sub emergency_save() {	3736	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2430		3738
2431	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2432		3740
2433	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
2434	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2435	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2436	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2437	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2438	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2439	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2440	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2441	$pl->save;	3755	$pl->save;
2442	}	3756	}
2443	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2444		3758
2445	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2446	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2447	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2448	$map->valid or next;	3762	$map->valid or next;
2449	$map->save;	3763	$map->save;
2450	}	3764	}
2451	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
2452		3766
2453	warn "begin emergency database checkpoint\n";	3767	warn "emergency_perl_save: begin database checkpoint\n";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	3768	BDB::db_env_txn_checkpoint $DB_ENV;
2455	warn "end emergency database checkpoint\n";	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";
2456	};	3774	};
2457		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
2458	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2459	}	3782	}
2460		3783
2461	sub post_cleanup {	3784	sub post_cleanup {
2462	my ($make_core) = @_;	3785	my ($make_core) = @_;
2463		3786
2464	warn Carp::longmess "post_cleanup backtrace"	3787	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	3788	if $make_core;
2466	}
2467		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
2468	sub reload() {	3819	sub do_reload_perl() {
2469	# can/must only be called in main	3820	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2471	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2472	return;	3823	return;
2473	}	3824	}
2474		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2475	warn "reloading...";	3831	warn "reloading...";
2476		3832
2477	warn "entering sync_job";	3833	warn "entering sync_job";
2478		3834
2479	cf::sync_job {	3835	cf::sync_job {
2480	cf::write_runtime; # external watchdog should not bark	3836	cf::write_runtime_sync; # external watchdog should not bark
2481	cf::emergency_save;	3837	cf::emergency_save;
2482	cf::write_runtime; # external watchdog should not bark	3838	cf::write_runtime_sync; # external watchdog should not bark
2483		3839
2484	warn "syncing database to disk";	3840	warn "syncing database to disk";
2485	BDB::db_env_txn_checkpoint $DB_ENV;	3841	BDB::db_env_txn_checkpoint $DB_ENV;
2486		3842
2487	# 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
2488		3844
2489	warn "cancelling all WF_AUTOCANCEL watchers";
2490	for (Event::all_watchers) {
2491	$_->cancel if $_->data & WF_AUTOCANCEL;
2492	}
2493
2494	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2495	for (;;) {
2496	BDB::flush;
2497	IO::AIO::flush;
2498	Coro::cede;
2499	last unless IO::AIO::nreqs || BDB::nreqs;	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2500	warn "iterate...";	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2501	}
2502
2503	++$RELOAD;
2504
2505	warn "cancelling all extension coros";
2506	$_->cancel for values %EXT_CORO;
2507	%EXT_CORO = ();
2508
2509	warn "removing commands";
2510	%COMMAND = ();
2511
2512	warn "removing ext commands";
2513	%EXTCMD = ();
2514
2515	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";
2518
2519	if (my $cb = $pkg->can ("unload")) {
2520	eval {
2521	$cb->($pkg);
2522	1
2523	} or warn "$pkg unloaded, but with errors: $@";
2524	}	3848	}
2525		3849
2526	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2527	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2528	}	3852	%EXT_CORO = ();
2529		3853
2530	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2531	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2533		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2534	warn "... unloading $k";	3863	warn "... unloading $pkg";
2535	delete $INC{$k};
2536		3864
2537	$k =~ s/\.pm$//;
2538	$k =~ s/\//::/g;
2539
2540	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2541	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2542	}	3874	}
2543		3875
2544	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 $k;
2545	}	3891	}
2546		3892
2547	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2548	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2549	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);
2550		3896
2551	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2553		3900
2554	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2555	# and global variables created in xs	3902	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2557		3904
2558	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2559		3906
2560	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2561	require cf;	3908	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2563		3910
2564	warn "loading config and database again";	3911	warn "loading config and database again";
2565	cf::cfg_load;	3912	cf::reload_config;
2566		3913
2567	warn "loading extensions";	3914	warn "loading extensions";
2568	cf::load_extensions;	3915	cf::load_extensions;
2569		3916
		3917	if ($REATTACH_ON_RELOAD) {
2570	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2571	_global_reattach; # objects, sockets	3919	_global_reattach; # objects, sockets
2572	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3922	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3923	reattach $_ for values %PLAYER;
		3924	}
2576		3925
2577	warn "loading reloadable resources";	3926	warn "running post_init jobs";
2578	reload_resources;	3927	(pop @POST_INIT)->(1) while @POST_INIT;
2579		3928
2580	warn "leaving sync_job";	3929	warn "leaving sync_job";
2581		3930
2582	1	3931	1
2583	} or do {	3932	} or do {
2584	warn $@;	3933	warn $@;
2585	warn "error while reloading, exiting.";	3934	cf::cleanup "error while reloading, exiting.";
2586	exit 1;	3935	};
		3936
		3937	warn "reloaded";
		3938	--$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	};
2587	};	3958	};
2588		3959	}
2589	warn "reloaded";
2590	};
2591
2592	our $RELOAD_WATCHER; # used only during reload
2593		3960
2594	register_command "reload" => sub {	3961	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2596		3963
2597	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2599		3966	async {
2600	# doing reload synchronously and two reloads happen back-to-back,	3967	$Coro::current->{desc} = "perl_reload";
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;	3968	reload_perl;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);	3969	};
2612	}	3970	}
2613	};	3971	};
2614		3972
2615	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2616		3974
2617	my $bug_warning = 0;	3975	my $bug_warning = 0;
2618		3976
2619	$TICK_WATCHER = Event->timer (	3977	our @WAIT_FOR_TICK;
2620	reentrant => 0,	3978	our @WAIT_FOR_TICK_BEGIN;
2621	parked => 1,	3979
2622	prio => 0,	3980	sub wait_for_tick {
2623	at => $NEXT_TICK || $TICK,	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2624	data => WF_AUTOCANCEL,	3982
2625	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	$signal->wait;
		3994	}
		3995
		3996	sub tick {
2626	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2629	return;	4000	return;
2630	}	4001	}
2631		4002
2632	$NOW = Event::time;
2633
2634	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2635	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;
2637		4004
		4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4006
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2640	Coro::async_pool {	4009	Coro::async_pool {
		4010	$Coro::current->{desc} = "runtime saver";
2641	write_runtime	4011	write_runtime_sync
2642	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2643	};
2644	}	4013	};
2645
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#
2651
2652	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2654
2655	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;
2657	},	4014	}
2658	);	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	}
2659		4034
2660	{	4035	{
2661	BDB::max_poll_time $TICK * 0.1;	4036	# configure BDB
2662	$BDB_POLL_WATCHER = Event->io (	4037
2663	reentrant => 0,
2664	fd => BDB::poll_fileno,
2665	poll => 'r',
2666	prio => 0,
2667	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,
2669	);
2670	BDB::min_parallel 8;	4038	BDB::min_parallel 16;
2671		4039	BDB::max_poll_reqs $TICK * 0.1;
2672	BDB::set_sync_prepare {	4040	$AnyEvent::BDB::WATCHER->priority (1);
2673	my $status;
2674	my $current = $Coro::current;
2675	(
2676	sub {
2677	$status = $!;
2678	$current->ready; undef $current;
2679	},
2680	sub {
2681	Coro::schedule while defined $current;
2682	$! = $status;
2683	},
2684	)
2685	};
2686		4041
2687	unless ($DB_ENV) {	4042	unless ($DB_ENV) {
2688	$DB_ENV = BDB::db_env_create;	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);
2689		4049
2690	cf::sync_job {	4050	cf::sync_job {
2691	eval {	4051	eval {
2692	BDB::db_env_open	4052	BDB::db_env_open
2693	$DB_ENV,	4053	$DB_ENV,
2694	$BDB_ENV_DIR,	4054	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	4057	0666;
2698		4058
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;
2703	};	4060	};
2704		4061
2705	cf::cleanup "db_env_open(db): $@" if $@;	4062	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	4063	};
2707	}	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	};
2708	}	4075	}
2709		4076
2710	{	4077	{
		4078	# configure IO::AIO
		4079
2711	IO::AIO::min_parallel 8;	4080	IO::AIO::min_parallel 8;
2712
2713	undef $Coro::AIO::WATCHER;
2714	IO::AIO::max_poll_time $TICK * 0.1;	4081	IO::AIO::max_poll_time $TICK * 0.1;
2715	$AIO_POLL_WATCHER = Event->io (	4082	undef $AnyEvent::AIO::WATCHER;
2716	reentrant => 0,
2717	data => WF_AUTOCANCEL,
2718	fd => IO::AIO::poll_fileno,
2719	poll => 'r',
2720	prio => 6,
2721	cb => \&IO::AIO::poll_cb,
2722	);
2723	}	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;
2724		4130
2725	END { cf::emergency_save }	4131	END { cf::emergency_save }
2726		4132
2727	1	4133	1
2728		4134

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