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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC vs.
Revision 1.528 by root, Fri Apr 23 04:42:12 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;
		1640	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1056		1643
1057	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1675	while and may block, so not sync_job-capable, ever.
1089		1676
1090	=cut	1677	=cut
1091		1678
1092	sub list_logins {	1679	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1680	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1681	or return [];
1095		1682
1096	my @logins;	1683	my @logins;
1097		1684
1098	for my $login (@$dirs) {	1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1102		1695
1103	utf8::decode $login;	1696	utf8::decode $login;
1104	push @logins, $login;	1697	push @logins, $login;
1105	}	1698	}
1106		1699
1107	\@logins	1700	\@logins
1108	}	1701	}
1109		1702
1110	=item $player->maps	1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
1111		1706
1112	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1113	player. May block.	1708	player. May block.
1114		1709
1115	=cut	1710	=cut
…		…
1133	}	1728	}
1134		1729
1135	\@paths	1730	\@paths
1136	}	1731	}
1137		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1138	=item $player->ext_reply ($msgid, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1139		1738
1140	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1141		1740
1142	=cut	1741	=cut
1143		1742
1144	sub ext_reply($$%) {	1743	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1146		1745
1147	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1747	}
1151		1748
1152	=item $player->ext_event ($type, %msg)	1749	=item $player->ext_msg ($type, @msg)
1153		1750
1154	Sends an ext event to the client.	1751	Sends an ext event to the client.
1155		1752
1156	=cut	1753	=cut
1157		1754
1158	sub ext_event($$%) {	1755	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1756	my ($self, $type, @msg) = @_;
1160		1757
1161	$self->ns->ext_event ($type, %msg);	1758	$self->ns->ext_msg ($type, @msg);
1162	}	1759	}
1163		1760
1164	=head3 cf::region	1761	=head3 cf::region
1165		1762
1166	=over 4	1763	=over 4
…		…
1169		1766
1170	package cf::region;	1767	package cf::region;
1171		1768
1172	=item cf::region::find_by_path $path	1769	=item cf::region::find_by_path $path
1173		1770
1174	Tries to decuce the probable region for a map knowing only its path.	1771	Tries to decuce the likely region for a map knowing only its path.
1175		1772
1176	=cut	1773	=cut
1177		1774
1178	sub find_by_path($) {	1775	sub find_by_path($) {
1179	my ($path) = @_;	1776	my ($path) = @_;
1180		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
1181	my ($match, $specificity);	1780	my ($match, $specificity);
1182		1781
1183	for my $region (list) {	1782	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1783	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1784	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1785	if $region->specificity > $specificity;
1187	}	1786	}
1188	}	1787	}
1189		1788
…		…
1210	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1212		1811
1213	sub generate_random_map {	1812	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1816
1215	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1818	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1245		1847
1246	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1247	}	1849	}
1248		1850
1249	# also paths starting with '/'	1851	# also paths starting with '/'
1250	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1251		1853
1252	sub thawer_merge {	1854	sub thawer_merge {
1253	my ($self, $merge) = @_;	1855	my ($self, $merge) = @_;
1254		1856
1255	# we have to keep some variables in memory intact	1857	# we have to keep some variables in memory intact
1256	local $self->{path};	1858	local $self->{path};
1257	local $self->{load_path};	1859	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1860
1261	$self->SUPER::thawer_merge ($merge);	1861	$self->SUPER::thawer_merge ($merge);
1262	}	1862	}
1263		1863
1264	sub normalise {	1864	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1312	return $self;	1912	return $self;
1313	}	1913	}
1314	}	1914	}
1315		1915
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1917	()
1318	}	1918	}
1319		1919
1320	sub init {	1920	sub init {
1321	my ($self) = @_;	1921	my ($self) = @_;
…		…
1336		1936
1337	# the original (read-only) location	1937	# the original (read-only) location
1338	sub load_path {	1938	sub load_path {
1339	my ($self) = @_;	1939	my ($self) = @_;
1340		1940
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1941	"$MAPDIR/$self->{path}.map"
1342	}	1942	}
1343		1943
1344	# the temporary/swap location	1944	# the temporary/swap location
1345	sub save_path {	1945	sub save_path {
1346	my ($self) = @_;	1946	my ($self) = @_;
1347		1947
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1949	"$TMPDIR/$path.map"
1350	}	1950	}
1351		1951
1352	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1353	sub uniq_path {	1953	sub uniq_path {
1354	my ($self) = @_;	1954	my ($self) = @_;
1355		1955
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1957	"$UNIQUEDIR/$path"
1358	}	1958	}
1359		1959
1360	# and all this just because we cannot iterate over	1960	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1961	my ($self) = @_;
1364		1962
1365	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1367	}	1966	}
1368		1967
1369	sub unlink_save {	1968	sub unlink_save {
1370	my ($self) = @_;	1969	my ($self) = @_;
1371		1970
…		…
1376		1975
1377	sub load_header_from($) {	1976	sub load_header_from($) {
1378	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1379		1978
1380	utf8::encode $path;	1979	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1981	or return;
		1982
		1983	$self->_load_header ($f)
		1984	or return;
		1985
		1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
1386		1988
1387	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1388		1990
1389	1	1991	1
1390	}	1992	}
…		…
1429	$self->load_header_orig	2031	$self->load_header_orig
1430	or return;	2032	or return;
1431	$self->prepare_orig;	2033	$self->prepare_orig;
1432	}	2034	}
1433		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
1434	$self->default_region (cf::region::find_by_path $self->{path})	2039	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	2040	unless $self->default_region;
1436		2041
1437	1	2042	1
1438	}	2043	}
…		…
1441	sub find {	2046	sub find {
1442	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1443		2048
1444	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1445		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1447		2053
1448	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1451	or return;	2056	or return;
1452		2057
1453	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1454		2059
1455	$map->load_header	2060	$map->load_header
1456	or return;	2061	or return;
1457		2062
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2064	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1461	$map->reset;	2068	$map->reset;
1462	undef $guard;
1463	return find $path;	2069	return find $path;
1464	}	2070	}
1465		2071
1466	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1467	}	2073	}
1468	}	2074	}
1469		2075
1470	sub pre_load { }	2076	sub pre_load { }
1471	sub post_load { }	2077	#sub post_load { } # XS
1472		2078
1473	sub load {	2079	sub load {
1474	my ($self) = @_;	2080	my ($self) = @_;
1475		2081
1476	local $self->{deny_reset} = 1; # loading can take a long time	2082	local $self->{deny_reset} = 1; # loading can take a long time
1477		2083
1478	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1480		2088
		2089	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2091
1483	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1484		2093
1485	$self->alloc;	2094	$self->alloc;
1486		2095
1487	$self->pre_load;	2096	$self->pre_load;
		2097	cf::cede_to_tick;
1488		2098
1489	$self->_load_objects ($self->{load_path}, 1)	2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
		2101	$self->_load_objects ($f)
1490	or return;	2102	or return;
1491		2103
1492	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1493	if delete $self->{load_original};	2105	if delete $self->{load_original};
1494		2106
1495	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1496	utf8::encode $uniq;	2108	utf8::encode $uniq;
1497	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1498	$self->clear_unique_items;	2111	$self->clear_unique_items;
1499	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1500	}	2115	}
1501	}	2116	}
1502		2117
1503	Coro::cede;	2118	$f->resolve_delayed_derefs;
1504		2119
		2120	cf::cede_to_tick;
1505	# now do the right thing for maps	2121	# now do the right thing for maps
1506	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1507
1508	unless ($self->{deny_activate}) {
1509	$self->decay_objects;
1510	$self->fix_auto_apply;
1511	$self->update_buttons;
1512	Coro::cede;
1513	$self->set_darkness_map;
1514	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1515	unless $self->difficulty;	2124	unless $self->difficulty;
1516	Coro::cede;	2125	cf::cede_to_tick;
		2126
		2127	unless ($self->{deny_activate}) {
		2128	$self->decay_objects;
		2129	$self->fix_auto_apply;
		2130	$self->update_buttons;
		2131	cf::cede_to_tick;
1517	$self->activate;	2132	$self->activate;
		2133	}
		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
		2138	$self->in_memory (cf::MAP_ACTIVE);
1518	}	2139	}
1519		2140
1520	$self->post_load;	2141	$self->post_load;
1521
1522	$self->in_memory (cf::MAP_IN_MEMORY);
1523	}	2142	}
1524		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
1525	sub customise_for {	2147	sub customise_for {
1526	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1527		2149
1528	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1529	if $self->per_player;	2151	if $self->per_player;
1530		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1531	$self	2156	$self
1532	}	2157	}
1533		2158
1534	# find and load all maps in the 3x3 area around a map	2159	# find and load all maps in the 3x3 area around a map
1535	sub load_diag {	2160	sub load_neighbours {
1536	my ($map) = @_;	2161	my ($map) = @_;
1537		2162
1538	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1539		2164
1540	for (0 .. 3) {	2165	for (0 .. 3) {
1541	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1542	or next;	2167	or next;
1543	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1544	or next;	2169	or next;
1545	$neigh->load;	2170	$neigh->load;
1546		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1547	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1548	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1549	}	2176	}
1550		2177
1551	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1552	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1553	or next;	2181	or next;
1554	$neigh->load;	2182	$neigh->load;
1555	}	2183	}
1556	}	2184	}
1557		2185
…		…
1562	}	2190	}
1563		2191
1564	sub do_load_sync {	2192	sub do_load_sync {
1565	my ($map) = @_;	2193	my ($map) = @_;
1566		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1567	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1568	}	2199	}
1569		2200
1570	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1571	our $MAP_PREFETCHER = undef;	2202	our $MAP_PREFETCHER = undef;
1572		2203
1573	sub find_async {	2204	sub find_async {
1574	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1575		2206
1576	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1577		2208
1578	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1579	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1580	}	2211	}
1581		2212
1582	undef $MAP_PREFETCH{$path};	2213	$MAP_PREFETCH{$path} |= $load;
		2214
1583	$MAP_PREFETCHER ||= cf::async {	2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
1584	while (%MAP_PREFETCH) {	2218	while (%MAP_PREFETCH) {
1585	for my $path (keys %MAP_PREFETCH) {	2219	while (my ($k, $v) = each %MAP_PREFETCH) {
1586	my $map = find $path	2220	if (my $map = find $k) {
1587	or next;
1588	$map->load;	2221	$map->load if $v;
		2222	}
1589		2223
1590	delete $MAP_PREFETCH{$path};	2224	delete $MAP_PREFETCH{$k};
1591	}	2225	}
1592	}	2226	}
1593	undef $MAP_PREFETCHER;	2227	undef $MAP_PREFETCHER;
1594	};	2228	};
1595	$MAP_PREFETCHER->prio (6);	2229	$MAP_PREFETCHER->prio (6);
1596		2230
1597	()	2231	()
1598	}	2232	}
1599		2233
		2234	# common code, used by both ->save and ->swapout
1600	sub save {	2235	sub _save {
1601	my ($self) = @_;	2236	my ($self) = @_;
1602
1603	my $lock = cf::lock_acquire "map_data:" . $self->path;
1604		2237
1605	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1606		2239
1607	return unless $self->dirty;	2240	return unless $self->dirty;
1608		2241
…		…
1614	return if $self->{deny_save};	2247	return if $self->{deny_save};
1615		2248
1616	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1617		2250
1618	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1619	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1620	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1621		2257
1622	if ($uniq) {	2258	if ($uniq) {
1623	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1624	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1625	} else {	2261	} else {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1627	}	2263	}
1628	}	2264	}
1629		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1630	sub swap_out {	2274	sub swap_out {
1631	my ($self) = @_;	2275	my ($self) = @_;
1632		2276
1633	# save first because save cedes
1634	$self->save;
1635
1636	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1637		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1638	return if $self->players;	2281	return if $self->players;
1639	return if $self->in_memory != cf::MAP_IN_MEMORY;
1640	return if $self->{deny_save};
1641		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1642	$self->clear;	2292	$self->clear;
1643	$self->in_memory (cf::MAP_SWAPPED);
1644	}	2293	}
1645		2294
1646	sub reset_at {	2295	sub reset_at {
1647	my ($self) = @_;	2296	my ($self) = @_;
1648		2297
1649	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1650	return 1e99 if $self->isa ("ext::map_per_player");#d#
1651	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1652		2300
1653	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1654	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1655		2303
…		…
1666	my ($self) = @_;	2314	my ($self) = @_;
1667		2315
1668	my $lock = cf::lock_acquire "map_data:$self->{path}";	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1669		2317
1670	return if $self->players;	2318	return if $self->players;
1671	return if $self->isa ("ext::map_per_player");#d#
1672		2319
1673	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
1674		2321
1675	$self->in_memory (cf::MAP_SWAPPED);	2322	$self->in_memory (cf::MAP_SWAPPED);
1676		2323
1677	# need to save uniques path	2324	# need to save uniques path
1678	unless ($self->{deny_save}) {	2325	unless ($self->{deny_save}) {
…		…
1682	if $uniq;	2329	if $uniq;
1683	}	2330	}
1684		2331
1685	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1686		2333
		2334	$self->deactivate;
		2335	$_->clear_links_to ($self) for values %cf::MAP;
1687	$self->clear;	2336	$self->clear;
1688
1689	$_->clear_links_to ($self) for values %cf::MAP;
1690		2337
1691	$self->unlink_save;	2338	$self->unlink_save;
1692	$self->destroy;	2339	$self->destroy;
1693	}	2340	}
1694		2341
1695	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1696		2343
1697	sub nuke {	2344	sub nuke {
1698	my ($self) = @_;	2345	my ($self) = @_;
1699		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
1700	delete $cf::MAP{$self->path};	2350	delete $cf::MAP{$self->path};
1701		2351
1702	$self->unlink_save;	2352	$self->unlink_save;
1703		2353
1704	bless $self, "cf::map";	2354	bless $self, "cf::map::wrap";
1705	delete $self->{deny_reset};	2355	delete $self->{deny_reset};
1706	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1707	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1708	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1709		2359
1710	$cf::MAP{$self->path} = $self;	2360	$cf::MAP{$self->path} = $self;
		2361	}
1711		2362
1712	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
		2364	}
		2365
		2366	=item $maps = cf::map::tmp_maps
		2367
		2368	Returns an arrayref with all map paths of currently instantiated and saved
		2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
		2374	[
		2375	map {
		2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item $maps = cf::map::random_maps
		2385
		2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
		2388
		2389	=cut
		2390
		2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
1713	}	2400	}
1714		2401
1715	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1716		2403
1717	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1718	instantiated unique items. May block.	2405	instantiated unique items. May block.
1719		2406
1720	=cut	2407	=cut
1721		2408
1722	sub unique_maps() {	2409	sub unique_maps() {
1723	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2410	[
1724	or return;	2411	map {
1725
1726	my @paths;
1727
1728	for (@$files) {
1729	utf8::decode $_;	2412	utf8::decode $_;
1730	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1731	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1732		2415	? ()
1733	push @paths, cf::map::normalise $_;	2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
1734	}	2418	]
1735
1736	\@paths
1737	}	2419	}
1738		2420
1739	package cf;	2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
		2448	}
		2449
		2450	\@maps
		2451	}
1740		2452
1741	=back	2453	=back
1742		2454
1743	=head3 cf::object	2455	=head3 cf::object
1744		2456
…		…
1748		2460
1749	=over 4	2461	=over 4
1750		2462
1751	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1752		2464
1753	Returns the inventory of the object _and_ their inventories, recursively.	2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
1754		2467
1755	=cut	2468	=cut
1756		2469
1757	sub inv_recursive_;	2470	sub inv_recursive_;
1758	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1761		2474
1762	sub inv_recursive {	2475	sub inv_recursive {
1763	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1764	}	2477	}
1765		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
		2505	}
		2506
1766	package cf;	2507	package cf;
1767		2508
1768	=back	2509	=back
1769		2510
1770	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1776	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1777	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1778	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1779		2520
1780	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1781		2536
1782	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1783	# with dialog boxes.	2538	# with dialog boxes.
1784	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1785	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1787		2542
1788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1789		2544
1790	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1791	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1792	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1793	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1794	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1795	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1796	}	2570	}
1797		2571
1798	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1799		2573
1800	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1813		2587
1814	=item $player_object->enter_link	2588	=item $player_object->enter_link
1815		2589
1816	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1817		2591
1818	The player should be reasonably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1819	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
1820		2596
1821	Will never block.	2597	Will never block.
1822		2598
1823	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1824		2600
…		…
1844	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1845	my ($self) = @_;	2621	my ($self) = @_;
1846		2622
1847	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1848		2624
		2625	++$self->{_link_recursion};
		2626
1849	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1850		2628
1851	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1852	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1853		2631
1854	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1855	}	2633	}
1856		2634
1857	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1858	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1859		2639
1860	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1861		2641
1862	unless ($map) {	2642	unless ($map) {
1863	# restore original map position	2643	# restore original map position
…		…
1874	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1875	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1876		2656
1877	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1878	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1879	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1880		2660
1881	$map->load;	2661	$map->load;
1882	$map->load_diag;	2662	$map->load_neighbours;
1883		2663
1884	return unless $self->contr->active;	2664	return unless $self->contr->active;
1885	$self->activate_recursive;
1886		2665
1887	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1888	$self->enter_map ($map, $x, $y);	2667	if ($self->enter_map ($map, $x, $y)) {
1889	}	2668	# entering was successful
1890		2669	delete $self->{_link_recursion};
1891	cf::player->attach (	2670	# only activate afterwards, to support waiting in hooks
1892	on_logout => sub {	2671	$self->activate_recursive;
1893	my ($pl) = @_;
1894
1895	# abort map switching before logout
1896	if ($pl->ob->{_link_pos}) {
1897	cf::sync_job {
1898	$pl->ob->leave_link
1899	};
1900	}
1901	},	2672	}
1902	on_login => sub {
1903	my ($pl) = @_;
1904		2673
1905	# try to abort aborted map switching on player login :)	2674	}
1906	# should happen only on crashes
1907	if ($pl->ob->{_link_pos}) {
1908	$pl->ob->enter_link;
1909	(async {
1910	$pl->ob->reply (undef,
1911	"There was an internal problem at your last logout, "
1912	. "the server will try to bring you to your intended destination in a second.",
1913	cf::NDI_RED);
1914	# we need this sleep as the login has a concurrent enter_exit running
1915	# and this sleep increases chances of the player not ending up in scorn
1916	Coro::Timer::sleep 1;
1917	$pl->ob->leave_link;
1918	})->prio (2);
1919	}
1920	},
1921	);
1922		2675
1923	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1924		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1925	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1926		2690
1927	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1928	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1929		2702
1930	$self->enter_link;	2703	$self->enter_link;
1931		2704
1932	(async {	2705	(async {
		2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
1933	my $map = eval {	2727	my $map = eval {
1934	my $map = cf::map::find $path;	2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1935	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
		2733	} else {
		2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
		2736
1936	$map	2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
1937	} or	2743	}
1938	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1939		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1940	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1941	})->prio (1);	2751	})->prio (1);
1942	}	2752	}
1943		2753
1944	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1945		2755
…		…
1965	}	2775	}
1966		2776
1967	sub prepare_random_map {	2777	sub prepare_random_map {
1968	my ($exit) = @_;	2778	my ($exit) = @_;
1969		2779
1970	my $guard = cf::lock_acquire "exit_prepare:$exit";
1971
1972	# all this does is basically replace the /! path by	2780	# all this does is basically replace the /! path by
1973	# a new random map path (?random/...) with a seed	2781	# a new random map path (?random/...) with a seed
1974	# that depends on the exit object	2782	# that depends on the exit object
1975		2783
1976	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
…		…
1978	if ($exit->map) {	2786	if ($exit->map) {
1979	$rmp->{region} = $exit->region->name;	2787	$rmp->{region} = $exit->region->name;
1980	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1981	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1982	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1983	}	2793	}
1984		2794
1985	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1986		2796
1987	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1988	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
1989	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2799	my $meta = "$RANDOMDIR/$md5.meta";
1990		2800
1991	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1992	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
1993	undef $fh;	2803	undef $fh;
1994	aio_rename "$meta~", $meta;	2804	aio_rename "$meta~", $meta;
1995		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1996	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1997	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1998	}	2812	}
1999	}	2813	}
2000		2814
2001	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
2002	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
2003		2817
2004	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
2005		2819
2006	if ($exit->slaying eq "/!") {
2007	#TODO: this should de-fi-ni-te-ly not be a sync-job
2008	# the problem is that $exit might not survive long enough
2009	# so it needs to be done right now, right here
2010	cf::sync_job { prepare_random_map $exit };
2011	}
2012
2013	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2014	my $hp = $exit->stats->hp;
2015	my $sp = $exit->stats->sp;
2016
2017	$self->enter_link;	2820	$self->enter_link;
2018		2821
2019	(async {	2822	(async {
2020	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
2021	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
		2832	prepare_random_map $exit
		2833	if $exit->slaying eq "/!";
		2834	}
		2835
		2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
		2839
2022	$self->goto ($slaying, $hp, $sp);	2840	$self->goto ($map, $x, $y);
2023		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
2024	1;	2846	1
2025	}) {	2847	}) {
2026	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
2027	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
2028	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
2029	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
2030		2852
2031	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
…		…
2050		2872
2051	utf8::encode $text;	2873	utf8::encode $text;
2052	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2053	}	2875	}
2054		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
2055	=item $client->ext_event ($type, %msg)	3064	=item $client->ext_msg ($type, @msg)
2056		3065
2057	Sends an exti event to the client.	3066	Sends an ext event to the client.
2058		3067
2059	=cut	3068	=cut
2060		3069
2061	sub cf::client::ext_event($$%) {	3070	sub cf::client::ext_msg($$@) {
2062	my ($self, $type, %msg) = @_;	3071	my ($self, $type, @msg) = @_;
2063		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
2064	$msg{msgtype} = "event_$type";	3076	push @msg, msgtype => "event_$type";
2065	$self->send_packet ("ext " . cf::to_json \%msg);	3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
2066	}	3097	}
2067		3098
2068	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
2069		3100
2070	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
2071	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2072	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2073		3104
2074	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
2075	reliable at some point in the future.	3106	become reliable at some point in the future.
2076		3107
2077	=cut	3108	=cut
2078		3109
2079	sub cf::client::query {	3110	sub cf::client::query {
2080	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
2088	utf8::encode $text;	3119	utf8::encode $text;
2089	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2090		3121
2091	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
2092	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
2093	}	3126	}
2094		3127
2095	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
2096	on_reply => sub {	3134	on_reply => sub {
2097	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
2098		3136
2099	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
2100	# get handled first	3138	# get handled first
…		…
2112	} else {	3150	} else {
2113	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2114	}	3152	}
2115	}	3153	}
2116	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
2117	);	3181	);
2118		3182
2119	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
2120		3184
2121	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
2137		3201
2138	$coro	3202	$coro
2139	}	3203	}
2140		3204
2141	cf::client->attach (	3205	cf::client->attach (
2142	on_destroy => sub {	3206	on_client_destroy => sub {
2143	my ($ns) = @_;	3207	my ($ns) = @_;
2144		3208
2145	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2146	},	3210	},
2147	);	3211	);
…		…
2162	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
2163	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
2164		3228
2165	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
2166		3230
2167	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
2168		3236
2169	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2170		3238
2171	=pod	3239	=pod
2172		3240
2173	The following functions and methods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2174		3242
2175	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
2176	cf::object::player player	3248	cf::object::player
2177	cf::player peaceful	3249	player
2178	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2179		3256
2180	=cut	3257	=cut
2181		3258
2182	for (	3259	for (
2183	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
2184	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2185	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2186	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2187	) {	3266	) {
2188	no strict 'refs';	3267	no strict 'refs';
2189	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2208		3287
2209	my $qcode = $code;	3288	my $qcode = $code;
2210	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2211	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2212		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2213	local $_;	3295	local $_;
2214	local @safe::cf::_safe_eval_args = values %vars;
2215		3296
2216	my $eval =	3297	my $eval =
2217	"do {\n"	3298	"do {\n"
2218	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2219	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2220	. $code	3301	. $code
2221	. "\n}"	3302	. "\n}"
2222	;	3303	;
2223		3304
		3305	if ($CFG{safe_eval}) {
2224	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2225	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2226	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
2227		3314
2228	if ($@) {	3315	if ($@) {
2229	warn "$@";	3316	warn "$@";
2230	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2231	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2250	=cut	3337	=cut
2251		3338
2252	sub register_script_function {	3339	sub register_script_function {
2253	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2254		3341
2255	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2256	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2257	}	3344	}
2258		3345
2259	=back	3346	=back
2260		3347
2261	=cut	3348	=cut
2262
2263	#############################################################################
2264
2265	=head2 EXTENSION DATABASE SUPPORT
2266
2267	Crossfire maintains a very simple database for extension use. It can
2268	currently store anything that can be serialised using Storable, which
2269	excludes objects.
2270
2271	The parameter C<$family> should best start with the name of the extension
2272	using it, it should be unique.
2273
2274	=over 4
2275
2276	=item $value = cf::db_get $family => $key
2277
2278	Returns a single value from the database.
2279
2280	=item cf::db_put $family => $key => $value
2281
2282	Stores the given C<$value> in the family.
2283
2284	=cut
2285
2286	our $DB;
2287
2288	sub db_init {
2289	unless ($DB) {
2290	$DB = BDB::db_create $DB_ENV;
2291
2292	cf::sync_job {
2293	eval {
2294	$DB->set_flags (BDB::CHKSUM);
2295
2296	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2297	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2298	cf::cleanup "db_open(db): $!" if $!;
2299	};
2300	cf::cleanup "db_open(db): $@" if $@;
2301	};
2302
2303	my $path = cf::localdir . "/database.pst";
2304	if (stat $path) {
2305	cf::sync_job {
2306	my $pst = Storable::retrieve $path;
2307
2308	cf::db_put (board => data => $pst->{board});
2309	cf::db_put (guildrules => data => $pst->{guildrules});
2310	cf::db_put (rent => balance => $pst->{rent}{balance});
2311	BDB::db_env_txn_checkpoint $DB_ENV;
2312
2313	unlink $path;
2314	};
2315	}
2316	}
2317	}
2318
2319	sub db_get($$) {
2320	my $key = "$_[0]/$_[1]";
2321
2322	cf::sync_job {
2323	BDB::db_get $DB, undef, $key, my $data;
2324
2325	$! ? ()
2326	: Compress::LZF::sthaw $data
2327	}
2328	}
2329
2330	sub db_put($$$) {
2331	BDB::dbreq_pri 4;
2332	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2333	}
2334		3349
2335	#############################################################################	3350	#############################################################################
2336	# the server's init and main functions	3351	# the server's init and main functions
2337		3352
2338	sub load_facedata {	3353	sub load_facedata($) {
2339	my $path = sprintf "%s/facedata", cf::datadir;	3354	my ($path) = @_;
		3355
		3356	# HACK to clear player env face cache, we need some signal framework
		3357	# for this (global event?)
		3358	%ext::player_env::MUSIC_FACE_CACHE = ();
		3359
		3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2340		3361
2341	warn "loading facedata from $path\n";	3362	warn "loading facedata from $path\n";
2342		3363
2343	my $facedata;	3364	my $facedata;
2344	0 < aio_load $path, $facedata	3365	0 < aio_load $path, $facedata
…		…
2347	$facedata = Coro::Storable::thaw $facedata;	3368	$facedata = Coro::Storable::thaw $facedata;
2348		3369
2349	$facedata->{version} == 2	3370	$facedata->{version} == 2
2350	or cf::cleanup "$path: version mismatch, cannot proceed.";	3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2351		3372
		3373	# patch in the exptable
		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3375	$facedata->{resource}{"res/exp_table"} = {
		3376	type => FT_RSRC,
		3377	data => $exp_table,
		3378	hash => (Digest::MD5::md5 $exp_table),
		3379	};
		3380	cf::cede_to_tick;
		3381
2352	{	3382	{
2353	my $faces = $facedata->{faceinfo};	3383	my $faces = $facedata->{faceinfo};
2354		3384
2355	while (my ($face, $info) = each %$faces) {	3385	while (my ($face, $info) = each %$faces) {
2356	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3387
2357	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3388	cf::face::set_visibility $idx, $info->{visibility};
		3389	cf::face::set_magicmap $idx, $info->{magicmap};
2358	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2359	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2360	Coro::cede;	3392
		3393	cf::cede_to_tick;
2361	}	3394	}
2362		3395
2363	while (my ($face, $info) = each %$faces) {	3396	while (my ($face, $info) = each %$faces) {
2364	next unless $info->{smooth};	3397	next unless $info->{smooth};
		3398
2365	my $idx = cf::face::find $face	3399	my $idx = cf::face::find $face
2366	or next;	3400	or next;
		3401
2367	if (my $smooth = cf::face::find $info->{smooth}) {	3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
2368	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2369	} else {	3405	} else {
2370	warn "smooth face '$info->{smooth}' not found for face '$face'";	3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
2371	}	3407	}
2372	Coro::cede;	3408
		3409	cf::cede_to_tick;
2373	}	3410	}
2374	}	3411	}
2375		3412
2376	{	3413	{
2377	my $anims = $facedata->{animinfo};	3414	my $anims = $facedata->{animinfo};
2378		3415
2379	while (my ($anim, $info) = each %$anims) {	3416	while (my ($anim, $info) = each %$anims) {
2380	cf::anim::set $anim, $info->{frames}, $info->{facings};	3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
2381	Coro::cede;	3418	cf::cede_to_tick;
2382	}	3419	}
2383		3420
2384	cf::anim::invalidate_all; # d'oh	3421	cf::anim::invalidate_all; # d'oh
2385	}	3422	}
2386		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
2387	1	3443	1
2388	}	3444	}
2389		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
		3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
		3489	load_resource_file "$MAPDIR/regions"
		3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
2390	sub reload_resources {	3513	sub reload_resources {
2391	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3514	warn "reloading resource files...\n";
2392	or die "unable to load regions file\n";#d#	3515
2393	load_facedata	3516	reload_facedata;
2394	or die "unable to load facedata\n";#d#	3517	reload_archetypes;
2395	}
2396
2397	sub init {
2398	reload_resources;	3518	reload_regions;
2399	}	3519	reload_treasures;
2400		3520
2401	sub cfg_load {	3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
2402	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2403	or return;	3528	or return;
2404		3529
2405	local $/;	3530	local $/;
2406	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2407		3532
2408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2409		3534
2410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2412		3537
2413	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2415	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2416	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2417	};	3542	};
2418	warn $@ if $@;	3543	warn $@ if $@;
2419	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2420	}	3575	}
2421		3576
2422	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2423	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2424	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2425	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2426	(async {	3590	(async {
2427	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
2428	})->prio (Coro::PRIO_MAX);	3593	})->prio (Coro::PRIO_MAX);
2429	};	3594	};
2430		3595
2431	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
		3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
2432	db_init;	3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2433	load_extensions;	3619	load_extensions;
2434		3620
2435	$TICK_WATCHER->start;	3621	utime time, time, $RUNTIMEFILE;
2436	Event::loop;	3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2437	}	3634	}
2438		3635
2439	#############################################################################	3636	#############################################################################
2440	# initialisation and cleanup	3637	# initialisation and cleanup
2441		3638
2442	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2443	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2444	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2445	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2446	reentrant => 0,
2447	data => WF_AUTOCANCEL,
2448	signal => $signal,
2449	prio => 0,
2450	cb => sub {
2451	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2452	},
2453	);	3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
2454	}	3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
2455	}	3735	}
2456		3736
2457	sub emergency_save() {	3737	sub emergency_save() {
2458	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2459		3739
2460	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2461		3741
2462	cf::sync_job {	3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
2463	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2464	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2465	# and maps saved/destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2466	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2467	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2468	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2469	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2470	$pl->save;	3756	$pl->save;
2471	}	3757	}
2472	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2473		3759
2474	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2475	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2476	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2477	$map->valid or next;	3763	$map->valid or next;
2478	$map->save;	3764	$map->save;
2479	}	3765	}
2480	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
2481		3767
2482	warn "begin emergency database checkpoint\n";	3768	warn "emergency_perl_save: begin database checkpoint\n";
2483	BDB::db_env_txn_checkpoint $DB_ENV;	3769	BDB::db_env_txn_checkpoint $DB_ENV;
2484	warn "end emergency database checkpoint\n";	3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2485	};	3775	};
2486		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2487	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2488	}	3783	}
2489		3784
2490	sub post_cleanup {	3785	sub post_cleanup {
2491	my ($make_core) = @_;	3786	my ($make_core) = @_;
2492		3787
2493	warn Carp::longmess "post_cleanup backtrace"	3788	warn Carp::longmess "post_cleanup backtrace"
2494	if $make_core;	3789	if $make_core;
2495	}
2496		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2497	sub reload() {	3820	sub do_reload_perl() {
2498	# can/must only be called in main	3821	# can/must only be called in main
2499	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2500	warn "can only reload from main coroutine";	3823	warn "can only reload from main coroutine";
2501	return;	3824	return;
2502	}	3825	}
2503		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2504	warn "reloading...";	3832	warn "reloading...";
2505		3833
2506	warn "entering sync_job";	3834	warn "entering sync_job";
2507		3835
2508	cf::sync_job {	3836	cf::sync_job {
2509	cf::write_runtime; # external watchdog should not bark	3837	cf::write_runtime_sync; # external watchdog should not bark
2510	cf::emergency_save;	3838	cf::emergency_save;
2511	cf::write_runtime; # external watchdog should not bark	3839	cf::write_runtime_sync; # external watchdog should not bark
2512		3840
2513	warn "syncing database to disk";	3841	warn "syncing database to disk";
2514	BDB::db_env_txn_checkpoint $DB_ENV;	3842	BDB::db_env_txn_checkpoint $DB_ENV;
2515		3843
2516	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2517		3845
2518	warn "cancelling all WF_AUTOCANCEL watchers";
2519	for (Event::all_watchers) {
2520	$_->cancel if $_->data & WF_AUTOCANCEL;
2521	}
2522
2523	warn "flushing outstanding aio requests";	3846	warn "flushing outstanding aio requests";
2524	for (;;) {
2525	BDB::flush;
2526	IO::AIO::flush;
2527	Coro::cede;
2528	last unless IO::AIO::nreqs || BDB::nreqs;	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2529	warn "iterate...";	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2530	}
2531
2532	++$RELOAD;
2533
2534	warn "cancelling all extension coros";
2535	$_->cancel for values %EXT_CORO;
2536	%EXT_CORO = ();
2537
2538	warn "removing commands";
2539	%COMMAND = ();
2540
2541	warn "removing ext commands";
2542	%EXTCMD = ();
2543
2544	warn "unloading/nuking all extensions";
2545	for my $pkg (@EXTS) {
2546	warn "... unloading $pkg";
2547
2548	if (my $cb = $pkg->can ("unload")) {
2549	eval {
2550	$cb->($pkg);
2551	1
2552	} or warn "$pkg unloaded, but with errors: $@";
2553	}	3849	}
2554		3850
2555	warn "... nuking $pkg";	3851	warn "cancelling all extension coros";
2556	Symbol::delete_package $pkg;	3852	$_->cancel for values %EXT_CORO;
2557	}	3853	%EXT_CORO = ();
2558		3854
2559	warn "unloading all perl modules loaded from $LIBDIR";	3855	warn "removing commands";
2560	while (my ($k, $v) = each %INC) {	3856	%COMMAND = ();
2561	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2562		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2563	warn "... unloading $k";	3864	warn "... unloading $pkg";
2564	delete $INC{$k};
2565		3865
2566	$k =~ s/\.pm$//;
2567	$k =~ s/\//::/g;
2568
2569	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2570	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2571	}	3875	}
2572		3876
2573	Symbol::delete_package $k;	3877	warn "unloading all perl modules loaded from $LIBDIR";
		3878	while (my ($k, $v) = each %INC) {
		3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
2574	}	3892	}
2575		3893
2576	warn "getting rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2577	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2578	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2579		3897
2580	warn "unloading cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2581	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2582		3901
2583	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2584	# and global variables created in xs	3903	# and global variables created in xs
2585	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2586		3905
2587	warn "unload completed, starting to reload now";	3906	warn "unload completed, starting to reload now";
2588		3907
2589	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2590	require cf;	3909	require cf;
2591	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2592		3911
2593	warn "loading config and database again";	3912	warn "loading config and database again";
2594	cf::cfg_load;	3913	cf::reload_config;
2595		3914
2596	warn "loading extensions";	3915	warn "loading extensions";
2597	cf::load_extensions;	3916	cf::load_extensions;
2598		3917
		3918	if ($REATTACH_ON_RELOAD) {
2599	warn "reattaching attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2600	_global_reattach; # objects, sockets	3920	_global_reattach; # objects, sockets
2601	warn "reattaching attachments to maps";	3921	warn "reattaching attachments to maps";
2602	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
2603	warn "reattaching attachments to players";	3923	warn "reattaching attachments to players";
2604	reattach $_ for values %PLAYER;	3924	reattach $_ for values %PLAYER;
		3925	}
2605		3926
2606	warn "loading reloadable resources";	3927	warn "running post_init jobs";
2607	reload_resources;	3928	(pop @POST_INIT)->(1) while @POST_INIT;
2608		3929
2609	warn "leaving sync_job";	3930	warn "leaving sync_job";
2610		3931
2611	1	3932	1
2612	} or do {	3933	} or do {
2613	warn $@;	3934	warn $@;
2614	warn "error while reloading, exiting.";	3935	cf::cleanup "error while reloading, exiting.";
2615	exit 1;	3936	};
		3937
		3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2616	};	3959	};
2617		3960	}
2618	warn "reloaded";
2619	};
2620
2621	our $RELOAD_WATCHER; # used only during reload
2622		3961
2623	register_command "reload" => sub {	3962	register_command "reload" => sub {
2624	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2625		3964
2626	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2627	$who->message ("reloading server.");	3966	$who->message ("reloading server.");
2628		3967	async {
2629	# doing reload synchronously and two reloads happen back-to-back,	3968	$Coro::current->{desc} = "perl_reload";
2630	# coro crashes during coro_state_free->destroy here.
2631
2632	$RELOAD_WATCHER ||= Event->timer (
2633	reentrant => 0,
2634	after => 0,
2635	data => WF_AUTOCANCEL,
2636	cb => sub {
2637	reload;	3969	reload_perl;
2638	undef $RELOAD_WATCHER;
2639	},
2640	);	3970	};
2641	}	3971	}
2642	};	3972	};
2643		3973
2644	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2645		3975
2646	my $bug_warning = 0;	3976	my $bug_warning = 0;
2647		3977
2648	$TICK_WATCHER = Event->timer (	3978	our @WAIT_FOR_TICK;
2649	reentrant => 0,	3979	our @WAIT_FOR_TICK_BEGIN;
2650	parked => 1,	3980
2651	prio => 0,	3981	sub wait_for_tick {
2652	at => $NEXT_TICK || $TICK,	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2653	data => WF_AUTOCANCEL,	3983
2654	cb => sub {	3984	my $signal = new Coro::Signal;
		3985	push @WAIT_FOR_TICK, $signal;
		3986	$signal->wait;
		3987	}
		3988
		3989	sub wait_for_tick_begin {
		3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3991
		3992	my $signal = new Coro::Signal;
		3993	push @WAIT_FOR_TICK_BEGIN, $signal;
		3994	$signal->wait;
		3995	}
		3996
		3997	sub tick {
2655	if ($Coro::current != $Coro::main) {	3998	if ($Coro::current != $Coro::main) {
2656	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2657	unless ++$bug_warning > 10;	4000	unless ++$bug_warning > 10;
2658	return;	4001	return;
2659	}	4002	}
2660		4003
2661	$NOW = Event::time;
2662
2663	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2664	$RUNTIME += $TICK;
2665	$NEXT_TICK += $TICK;
2666		4005
		4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4007
2667	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2668	$NEXT_RUNTIME_WRITE = $NOW + 10;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2669	Coro::async_pool {	4010	Coro::async_pool {
		4011	$Coro::current->{desc} = "runtime saver";
2670	write_runtime	4012	write_runtime_sync
2671	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2672	};
2673	}	4014	};
2674
2675	$WAIT_FOR_TICK->broadcast;
2676	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2677
2678	# my $AFTER = Event::time;
2679	# warn $AFTER - $NOW;#d#
2680
2681	# if we are delayed by four ticks or more, skip them all
2682	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2683
2684	$TICK_WATCHER->at ($NEXT_TICK);
2685	$TICK_WATCHER->start;
2686	},	4015	}
2687	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
2688		4035
2689	{	4036	{
2690	BDB::max_poll_time $TICK * 0.1;	4037	# configure BDB
2691	$BDB_POLL_WATCHER = Event->io (	4038
2692	reentrant => 0,
2693	fd => BDB::poll_fileno,
2694	poll => 'r',
2695	prio => 0,
2696	data => WF_AUTOCANCEL,
2697	cb => \&BDB::poll_cb,
2698	);
2699	BDB::min_parallel 8;	4039	BDB::min_parallel 16;
2700		4040	BDB::max_poll_reqs $TICK * 0.1;
2701	BDB::set_sync_prepare {	4041	$AnyEvent::BDB::WATCHER->priority (1);
2702	my $status;
2703	my $current = $Coro::current;
2704	(
2705	sub {
2706	$status = $!;
2707	$current->ready; undef $current;
2708	},
2709	sub {
2710	Coro::schedule while defined $current;
2711	$! = $status;
2712	},
2713	)
2714	};
2715		4042
2716	unless ($DB_ENV) {	4043	unless ($DB_ENV) {
2717	$DB_ENV = BDB::db_env_create;	4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2718		4050
2719	cf::sync_job {	4051	cf::sync_job {
2720	eval {	4052	eval {
2721	BDB::db_env_open	4053	BDB::db_env_open
2722	$DB_ENV,	4054	$DB_ENV,
2723	$BDB_ENV_DIR,	4055	$BDBDIR,
2724	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2725	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2726	0666;	4058	0666;
2727		4059
2728	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2729
2730	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2731	$DB_ENV->set_lk_detect;
2732	};	4061	};
2733		4062
2734	cf::cleanup "db_env_open(db): $@" if $@;	4063	cf::cleanup "db_env_open(db): $@" if $@;
2735	};	4064	};
2736	}	4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
2737	}	4076	}
2738		4077
2739	{	4078	{
		4079	# configure IO::AIO
		4080
2740	IO::AIO::min_parallel 8;	4081	IO::AIO::min_parallel 8;
2741
2742	undef $Coro::AIO::WATCHER;
2743	IO::AIO::max_poll_time $TICK * 0.1;	4082	IO::AIO::max_poll_time $TICK * 0.1;
2744	$AIO_POLL_WATCHER = Event->io (	4083	undef $AnyEvent::AIO::WATCHER;
2745	reentrant => 0,
2746	data => WF_AUTOCANCEL,
2747	fd => IO::AIO::poll_fileno,
2748	poll => 'r',
2749	prio => 6,
2750	cb => \&IO::AIO::poll_cb,
2751	);
2752	}	4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2753		4131
2754	END { cf::emergency_save }	4132	END { cf::emergency_save }
2755		4133
2756	1	4134	1
2757		4135

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