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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.204 by root, Fri Feb 2 19:59:22 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;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	our $NOW;
53	our $USE_FSYNC; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
54		130
55	our %CFG;	131	our %CFG;
56		132
57	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
59		136
60	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
61	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		140
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $REALLY_UNLOOP; # never set to true, please :)
		153
71	binmode STDOUT;	154	binmode STDOUT;
72	binmode STDERR;	155	binmode STDERR;
73		156
74	# read virtual server time, if available	157	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
76	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
77	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
78	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
79	}	162	}
80		163
81	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
82	mkdir cf::localdir . "/" . cf::playerdir;	165
83	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
84	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
85	mkdir $RANDOM_MAPS;
86		168
87	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
88		170
89	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::"} };
90		187
91	#############################################################################	188	#############################################################################
92		189
93	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
94		191
…		…
101	=item $cf::RUNTIME	198	=item $cf::RUNTIME
102		199
103	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
104	every server tick.	201	every server tick.
105		202
106	=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
107		206
108	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		211
111	=item $cf::NOW	212	=item $cf::NOW
112		213
113	The time of the last (current) server tick.	214	The time of the last (current) server tick.
114		215
115	=item $cf::TICK	216	=item $cf::TICK
116		217
117	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
118		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
119	=item %cf::CFG	230	=item %cf::CFG
120		231
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
122	from wherever your confdir points to.	233	from wherever your confdir points to.
123		234
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		236
126	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
127	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
128	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.
129	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.
130		252
131	=back	253	=back
132		254
133	=cut	255	=cut
134		256
135	BEGIN {	257	$Coro::State::WARNHOOK = sub {
136	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	258	my $msg = join "", @_;
138	utf8::encode $msg;
139		259
140	$msg .= "\n"	260	$msg .= "\n"
141	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
142		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
143	LOG llevError, $msg;	265	LOG llevError, $msg;
144	};	266	};
145	}	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	};
146		281
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		289
154	# 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
155	# within the Safe compartment.	291	# within the Safe compartment.
156	for my $pkg (qw(	292	for my $pkg (qw(
157	cf::global cf::attachable	293	cf::global cf::attachable
158	cf::object cf::object::player	294	cf::object cf::object::player
159	cf::client cf::player	295	cf::client cf::player
160	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
161	cf::map cf::party cf::region	298	cf::party cf::region
162	)) {	299	)) {
163	no strict 'refs';
164	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
165	}	301	}
166		302
167	$Event::DIED = sub {	303	$EV::DIED = sub {
168	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
169	};	305	};
		306
		307	#############################################################################
170		308
171	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
172		310
173	=over 4	311	=over 4
174		312
…		…
193	$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;
194	$d	332	$d
195	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
196	}	334	}
197		335
198	use JSON::Syck (); # TODO# replace by JSON::PC once working
199
200	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
201		337
202	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
203		339
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
212		341
213	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
214		343
215	=cut	344	=cut
216		345
217	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
219	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
220	}	363	}
221		364
222	=item cf::lock_wait $string	365	=item cf::lock_wait $string
223		366
224	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
225		368
226	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
227		370
228	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
229	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,
230	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
231	returned.	374	returned.
232		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
233	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
234	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
235		381
236	=cut	382	=item $locked = cf::lock_active $string
237		383
238	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
239		389
240	sub lock_wait($) {	390	sub lock_wait($) {
241	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
242
243	# wait for lock, if any
244	while ($LOCK{$key}) {
245	push @{ $LOCK{$key} }, $Coro::current;
246	Coro::schedule;
247	}
248	}	392	}
249		393
250	sub lock_acquire($) {	394	sub lock_acquire($) {
251	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
252		397
253	# wait, to be sure we are not locked	398	sub lock_active($) {
254	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
255
256	$LOCK{$key} = [];
257
258	Coro::guard {
259	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };
261	}
262	}	400	}
263		401
264	sub freeze_mainloop {	402	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
266		404
267	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
268	$TICK_WATCHER->start;	406	}
269	$WRITE_RUNTIME_WATCHER->start;	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
270	};	472	}
271	$WRITE_RUNTIME_WATCHER->stop;	473	};
272	$TICK_WATCHER->stop;	474
273	$guard	475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
274	}	488	}
275		489
276	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
277		491
278	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
283		497
284	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
285		499
286	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
287		501
288	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
291		506
292	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
295	fast or be very important.	510	fast or be very important.
…		…
298		513
299	sub sync_job(&) {	514	sub sync_job(&) {
300	my ($job) = @_;	515	my ($job) = @_;
301		516
302	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
303	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
305		522
306	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
307	# (but this is cancel-safe)	524
308	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
309		526
310	my $busy = 1;	527	my $busy = 1;
311	my @res;	528	my @res;
312		529
313	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
314	@res = eval { $job->() };	532	@res = eval { $job->() };
315	warn $@ if $@;	533	warn $@ if $@;
316	undef $busy;	534	undef $busy;
317	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
318		536
319	while ($busy) {	537	while ($busy) {
320	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
321	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
322		548
323	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
324	} else {	550	} else {
325	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
326		552
…		…
346	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
347		573
348	$coro	574	$coro
349	}	575	}
350		576
351	sub write_runtime {	577	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		578
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
355	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
356		583
357	my $value = $cf::RUNTIME + 90 + 10;	584	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		585
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	sub fork_call(&@) {
362	and return;	587	my ($cb, @args) = @_;
363		588
364	# always fsync - this file is important	589	# we seemingly have to make a local copy of the whole thing,
365	aio_fsync $fh	590	# otherwise perl prematurely frees the stuff :/
366	and return;	591	# TODO: investigate and fix (likely this will be rather laborious)
367		592
368	close $fh	593	my @res = Coro::Util::fork_eval {
369	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
370		597
371	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
372	and return;	599	}
373		600
		601	sub objinfo {
374	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
375	}	775	}
376		776
377	=back	777	=back
378		778
379	=cut	779	=cut
380		780
381	#############################################################################	781	#############################################################################
382		782
383	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
384		784
385	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
386	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")
387	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
388		788
389	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>
390	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
391	crossfire+).	791	Deliantra).
392		792
393	=over 4	793	=over 4
394		794
395	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
396		796
…		…
440	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
441		841
442	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
443	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
444		844
445	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
446	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.
447		847
448	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
449		849
450	=over 4	850	=over 4
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
560		960
561	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		965
566	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	967	my $pkg = shift @arg;
568		968
569	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
599	}	999	}
600		1000
601	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
602	} else {	1002	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	1004	}
605		1005
606	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
607	}	1007	}
608		1008
…		…
610	if (ref $_[0]) {	1010	if (ref $_[0]) {
611	_object_attach @_;	1011	_object_attach @_;
612	} else {	1012	} else {
613	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
614	}	1014	}
		1015	_recalc_want;
615	};	1016	};
616		1017
617	# all those should be optimised	1018	# all those should be optimised
618	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1024	reattach ($obj);
624	} else {	1025	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
626	}	1027	}
		1028	_recalc_want;
627	};	1029	};
628		1030
629	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
631		1033
…		…
646	";	1048	";
647	die if $@;	1049	die if $@;
648	}	1050	}
649		1051
650	our $override;	1052	our $override;
651	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?
652		1054
653	sub override {	1055	sub override {
654	$override = 1;	1056	$override = 1;
655	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
656	}	1058	}
657		1059
658	sub do_invoke {	1060	sub do_invoke {
659	my $event = shift;	1061	my $event = shift;
660	my $callbacks = shift;	1062	my $callbacks = shift;
661		1063
662	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
663		1065
664	local $override;	1066	local $override;
665		1067
666	for (@$callbacks) {	1068	for (@$callbacks) {
667	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
676	}	1078	}
677		1079
678	0	1080	0
679	}	1081	}
680		1082
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1084
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1086
685	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
686		1088
687	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
688	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
689	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1092
691	=back	1093	=back
692		1094
693	=cut	1095	=cut
694		1096
695	#############################################################################	1097	#############################################################################
696	# 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, $ob2
		1140	}
697		1141
698	sub reattach {	1142	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1144	my ($obj) = @_;
701		1145
		1146	# no longer needed after getting rid of delete_package?
702	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
703		1148
704	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
705		1150
706	@$registry = ();	1151	@$registry = ();
707		1152
…		…
722	cf::attachable->attach (	1167	cf::attachable->attach (
723	prio => -1000000,	1168	prio => -1000000,
724	on_instantiate => sub {	1169	on_instantiate => sub {
725	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
726		1171
727	$data = from_json $data;	1172	$data = decode_json $data;
728		1173
729	for (@$data) {	1174	for (@$data) {
730	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
731		1176
732	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
748	sub object_freezer_save {	1193	sub object_freezer_save {
749	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
750		1195
751	sync_job {	1196	sync_job {
752	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
753	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
754	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
755		1202
756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
759	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	}
760	close $fh;	1210	aio_close $fh;
761		1211
762	if (@$objs) {	1212	if (@$objs) {
763	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) {
764	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
765	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
766	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
767	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	}
768	close $fh;	1221	aio_close $fh;
769	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
770	}	1223	}
771	} else {	1224	} else {
772	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
773	}	1226	}
774		1227
775	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
776	} else {	1232	} else {
777	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
778	}	1234	}
779	} else {	1235	} else {
780	aio_unlink $filename;	1236	aio_unlink $filename;
781	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
782	}	1238	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	1239	};
790	}	1240	}
791		1241
792	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
794		1244
…		…
799		1249
800	sub object_thawer_load {	1250	sub object_thawer_load {
801	my ($filename) = @_;	1251	my ($filename) = @_;
802		1252
803	my ($data, $av);	1253	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1254
808	(aio_load $filename, $data) >= 0	1255	(aio_load $filename, $data) >= 0
809	or return;	1256	or return;
810		1257
811	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
813	or return;	1260	or return;
		1261
814	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
815	}	1264	}
816		1265
		1266	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
819	return ($data, $av);	1271	($data, $av)
820	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
821		1279
822	#############################################################################	1280	#############################################################################
823	# command handling &c	1281	# command handling &c
824		1282
825	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1297	}
840		1298
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1300
843	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.
844		1306
845	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
846	called.	1308	called.
847		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
848	=cut	1321	=cut
849		1322
850	sub register_extcmd {	1323	sub register_extcmd {
851	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
852		1325
853	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
854	}	1327	}
855		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
856	cf::player->attach (	1337	cf::player->attach (
857	on_command => sub {	1338	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
859		1340
860	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
861	or return;	1342	or return;
862		1343
…		…
867	cf::override;	1348	cf::override;
868	},	1349	},
869	on_extcmd => sub {	1350	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
871		1352
872	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1354
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
880	} else {	1370	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1372	}
883		1373
884	cf::override;	1374	cf::override;
885	},	1375	},
886	);	1376	);
887		1377
		1378	# "readahead" all extensions
888	sub load_extension {	1379	sub cache_extensions {
889	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
890		1381
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1385	}
916	die $@;
917	}	1386	};
918		1387
919	push @EXTS, $pkg;	1388	$grp
920	}	1389	}
921		1390
922	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
923	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1396	next unless -r $path;
925	eval {	1397
926	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 $active;
		1460	}
927	1	1461	}
928	} or warn "$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	}
929	}	1472	};
930	}	1473	}
931		1474
932	#############################################################################	1475	#############################################################################
933		1476
		1477	=back
		1478
934	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
935		1480
936	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
937		1482
938	=cut	1483	=cut
939		1484
940	package cf::player;	1485	package cf::player;
941		1486
…		…
943		1488
944	=head3 cf::player	1489	=head3 cf::player
945		1490
946	=over 4	1491	=over 4
947		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
948	=item cf::player::find $login	1507	=item cf::player::find $login
949		1508
950	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
951		1510
952	=cut	1511	=cut
953		1512
954	sub playerdir($) {	1513	sub playerdir($) {
955	cf::localdir	1514	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1516	}
961		1517
962	sub path($) {	1518	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1520
965	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
966	}	1522	}
967		1523
968	sub find_active($) {	1524	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
973		1529
974	sub exists($) {	1530	sub exists($) {
975	my ($login) = @_;	1531	my ($login) = @_;
976		1532
977	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
979	}	1535	}
980		1536
981	sub find($) {	1537	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1539	my $login = $_[0];
984		1540
985	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
986		1542
987	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
989	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;
990	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
991	}	1560	}
992	}	1561	}
993	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
994		1576
995	sub save($) {	1577	sub save($) {
996	my ($pl) = @_;	1578	my ($pl) = @_;
997		1579
998	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1004		1586
1005	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1007		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
1008	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1009	Coro::cede;	1596	cf::cede_to_tick;
1010	}	1597	}
1011		1598
1012	sub new($) {	1599	sub new($) {
1013	my ($login) = @_;	1600	my ($login) = @_;
1014		1601
…		…
1020	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1021		1608
1022	$self	1609	$self
1023	}	1610	}
1024		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
1025	=item $pl->quit_character	1622	=item $pl->quit_character
1026		1623
1027	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1029		1626
1030	=cut	1627	=cut
1031		1628
1032	sub quit_character {	1629	sub quit_character {
1033	my ($pl) = @_;	1630	my ($pl) = @_;
1034		1631
		1632	my $name = $pl->ob->name;
		1633
1035	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1036	$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
1037		1636
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1039	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1041	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1042		1643
1043	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1646	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1647	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1648	$pl->destroy;
		1649
		1650	my $prefix = qr<^~\Q$name\E/>;
		1651
		1652	# nuke player maps
		1653	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1654
1048	IO::AIO::aio_rmtree $temp;	1655	IO::AIO::aio_rmtree $temp;
		1656	}
		1657
		1658	=item $pl->kick
		1659
		1660	Kicks a player out of the game. This destroys the connection.
		1661
		1662	=cut
		1663
		1664	sub kick {
		1665	my ($pl, $kicker) = @_;
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1668	$pl->killer ("kicked");
		1669	$pl->ns->destroy;
1049	}	1670	}
1050		1671
1051	=item cf::player::list_logins	1672	=item cf::player::list_logins
1052		1673
1053	Returns am arrayref of all valid playernames in the system, can take a	1674	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1675	while and may block, so not sync_job-capable, ever.
1055		1676
1056	=cut	1677	=cut
1057		1678
1058	sub list_logins {	1679	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1680	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1681	or return [];
1061		1682
1062	my @logins;	1683	my @logins;
1063		1684
1064	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") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1068		1695
1069	utf8::decode $login;	1696	utf8::decode $login;
1070	push @logins, $login;	1697	push @logins, $login;
1071	}	1698	}
1072		1699
1073	\@logins	1700	\@logins
1074	}	1701	}
1075		1702
1076	=item $player->maps	1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
1077		1706
1078	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1079	player. May block.	1708	player. May block.
1080		1709
1081	=cut	1710	=cut
…		…
1099	}	1728	}
1100		1729
1101	\@paths	1730	\@paths
1102	}	1731	}
1103		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1105		1738
1106	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1107		1740
1108	=cut	1741	=cut
1109		1742
1110	sub ext_reply($$$%) {	1743	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1112		1745
1113	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1747	}
1117		1748
1118	package cf;	1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
		1762
		1763	=over 4
		1764
		1765	=cut
		1766
		1767	package cf::region;
		1768
		1769	=item cf::region::find_by_path $path
		1770
		1771	Tries to decuce the likely region for a map knowing only its path.
		1772
		1773	=cut
		1774
		1775	sub find_by_path($) {
		1776	my ($path) = @_;
		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
		1780	my ($match, $specificity);
		1781
		1782	for my $region (list) {
		1783	if ($region->{match} && $path =~ $region->{match}) {
		1784	($match, $specificity) = ($region, $region->specificity)
		1785	if $region->specificity > $specificity;
		1786	}
		1787	}
		1788
		1789	$match
		1790	}
1119		1791
1120	=back	1792	=back
1121
1122		1793
1123	=head3 cf::map	1794	=head3 cf::map
1124		1795
1125	=over 4	1796	=over 4
1126		1797
…		…
1138	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1140		1811
1141	sub generate_random_map {	1812	sub generate_random_map {
1142	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
1143	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1144	$self->_create_random_map (	1818	$self->_create_random_map (
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1148	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1149	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1173		1847
1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1175	}	1849	}
1176		1850
1177	# also paths starting with '/'	1851	# also paths starting with '/'
1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1179		1853
1180	sub thawer_merge {	1854	sub thawer_merge {
1181	my ($self, $merge) = @_;	1855	my ($self, $merge) = @_;
1182		1856
1183	# we have to keep some variables in memory intact	1857	# we have to keep some variables in memory intact
1184	local $self->{path};	1858	local $self->{path};
1185	local $self->{load_path};	1859	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1860
1189	$self->SUPER::thawer_merge ($merge);	1861	$self->SUPER::thawer_merge ($merge);
1190	}	1862	}
1191		1863
1192	sub normalise {	1864	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1240	return $self;	1912	return $self;
1241	}	1913	}
1242	}	1914	}
1243		1915
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1917	()
1246	}	1918	}
1247		1919
1248	sub init {	1920	sub init {
1249	my ($self) = @_;	1921	my ($self) = @_;
…		…
1264		1936
1265	# the original (read-only) location	1937	# the original (read-only) location
1266	sub load_path {	1938	sub load_path {
1267	my ($self) = @_;	1939	my ($self) = @_;
1268		1940
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1941	"$MAPDIR/$self->{path}.map"
1270	}	1942	}
1271		1943
1272	# the temporary/swap location	1944	# the temporary/swap location
1273	sub save_path {	1945	sub save_path {
1274	my ($self) = @_;	1946	my ($self) = @_;
1275		1947
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1949	"$TMPDIR/$path.map"
1278	}	1950	}
1279		1951
1280	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1281	sub uniq_path {	1953	sub uniq_path {
1282	my ($self) = @_;	1954	my ($self) = @_;
1283		1955
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1957	"$UNIQUEDIR/$path"
1286	}	1958	}
1287		1959
1288	# and all this just because we cannot iterate over	1960	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	1961	my ($self) = @_;
1292		1962
1293	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1295	}	1966	}
1296		1967
1297	sub unlink_save {	1968	sub unlink_save {
1298	my ($self) = @_;	1969	my ($self) = @_;
1299		1970
1300	utf8::encode (my $save = $self->save_path);	1971	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1973	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1974	}
1309		1975
1310	sub load_header_from($) {	1976	sub load_header_from($) {
1311	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1312		1978
1313	utf8::encode $path;	1979	utf8::encode $path;
1314	#aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1315	# or return;
1316
1317	$self->_load_header ($path)
1318	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;
1319		1988
1320	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1321		1990
1322	1	1991	1
1323	}	1992	}
…		…
1362	$self->load_header_orig	2031	$self->load_header_orig
1363	or return;	2032	or return;
1364	$self->prepare_orig;	2033	$self->prepare_orig;
1365	}	2034	}
1366		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
		2039	$self->default_region (cf::region::find_by_path $self->{path})
		2040	unless $self->default_region;
		2041
1367	1	2042	1
1368	}	2043	}
1369		2044
1370	sub find;	2045	sub find;
1371	sub find {	2046	sub find {
1372	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1373		2048
1374	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1375		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1376	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1377		2053
1378	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1379	my $guard = cf::lock_acquire "map_find:$path";
1380	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1381	or return;	2056	or return;
1382		2057
1383	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1384		2059
1385	$map->load_header	2060	$map->load_header
1386	or return;	2061	or return;
1387		2062
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	2064	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1391	$map->reset;	2068	$map->reset;
1392	undef $guard;
1393	return find $path;	2069	return find $path;
1394	}	2070	}
1395		2071
1396	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1397	}	2073	}
1398	}	2074	}
1399		2075
1400	sub pre_load { }	2076	sub pre_load { }
1401	sub post_load { }	2077	#sub post_load { } # XS
1402		2078
1403	sub load {	2079	sub load {
1404	my ($self) = @_;	2080	my ($self) = @_;
1405		2081
1406	local $self->{deny_reset} = 1; # loading can take a long time	2082	local $self->{deny_reset} = 1; # loading can take a long time
1407		2083
1408	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1409	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1410		2088
		2089	return unless $self->valid;
1411	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1412		2091
1413	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1414		2093
1415	$self->alloc;	2094	$self->alloc;
1416		2095
1417	$self->pre_load;	2096	$self->pre_load;
		2097	cf::cede_to_tick;
1418		2098
1419	$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)
1420	or return;	2102	or return;
1421		2103
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1423	if delete $self->{load_original};	2105	if delete $self->{load_original};
1424		2106
1425	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2108	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2111	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1430	}	2115	}
1431	}	2116	}
1432		2117
1433	Coro::cede;	2118	$f->resolve_delayed_derefs;
1434		2119
		2120	cf::cede_to_tick;
1435	# now do the right thing for maps	2121	# now do the right thing for maps
1436	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;
1443	$self->set_darkness_map;
1444	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	2124	unless $self->difficulty;
1446	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;
1447	$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);
1448	}	2139	}
1449		2140
1450	$self->post_load;	2141	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	2142	}
1454		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
1455	sub customise_for {	2147	sub customise_for {
1456	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1457		2149
1458	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	2151	if $self->per_player;
1460		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1461	$self	2156	$self
1462	}	2157	}
1463		2158
1464	# 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
1465	sub load_diag {	2160	sub load_neighbours {
1466	my ($map) = @_;	2161	my ($map) = @_;
1467		2162
1468	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1469		2164
1470	for (0 .. 3) {	2165	for (0 .. 3) {
1471	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1472	or next;	2167	or next;
1473	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1474	or next;	2169	or next;
1475	$neigh->load;	2170	$neigh->load;
1476		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1479	}	2176	}
1480		2177
1481	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1482	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1483	or next;	2181	or next;
1484	$neigh->load;	2182	$neigh->load;
1485	}	2183	}
1486	}	2184	}
1487		2185
…		…
1492	}	2190	}
1493		2191
1494	sub do_load_sync {	2192	sub do_load_sync {
1495	my ($map) = @_;	2193	my ($map) = @_;
1496		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1497	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1498	}	2199	}
1499		2200
1500	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1501	our $MAP_PREFETCHER = undef;	2202	our $MAP_PREFETCHER = undef;
1502		2203
1503	sub find_async {	2204	sub find_async {
1504	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1505		2206
1506	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1507		2208
1508	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1510	}	2211	}
1511		2212
1512	undef $MAP_PREFETCH{$path};	2213	$MAP_PREFETCH{$path} |= $load;
		2214
1513	$MAP_PREFETCHER ||= cf::async {	2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
1514	while (%MAP_PREFETCH) {	2218	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	2219	while (my ($k, $v) = each %MAP_PREFETCH) {
1516	my $map = find $path	2220	if (my $map = find $k) {
1517	or next;
1518	$map->load;	2221	$map->load if $v;
		2222	}
1519		2223
1520	delete $MAP_PREFETCH{$path};	2224	delete $MAP_PREFETCH{$k};
1521	}	2225	}
1522	}	2226	}
1523	undef $MAP_PREFETCHER;	2227	undef $MAP_PREFETCHER;
1524	};	2228	};
1525	$MAP_PREFETCHER->prio (6);	2229	$MAP_PREFETCHER->prio (6);
1526		2230
1527	()	2231	()
1528	}	2232	}
1529		2233
		2234	# common code, used by both ->save and ->swapout
1530	sub save {	2235	sub _save {
1531	my ($self) = @_;	2236	my ($self) = @_;
1532
1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
1534		2237
1535	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1536		2239
1537	return unless $self->dirty;	2240	return unless $self->dirty;
1538		2241
…		…
1544	return if $self->{deny_save};	2247	return if $self->{deny_save};
1545		2248
1546	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1547		2250
1548	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1549	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1550	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1551		2257
1552	if ($uniq) {	2258	if ($uniq) {
1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1555	} else {	2261	} else {
1556	$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);
1557	}	2263	}
1558	}	2264	}
1559		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1560	sub swap_out {	2274	sub swap_out {
1561	my ($self) = @_;	2275	my ($self) = @_;
1562		2276
1563	# save first because save cedes
1564	$self->save;
1565
1566	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1567		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1568	return if $self->players;	2281	return if $self->players;
1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
1570	return if $self->{deny_save};
1571		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
1572	$self->clear;	2292	$self->clear;
1573	$self->in_memory (cf::MAP_SWAPPED);
1574	}	2293	}
1575		2294
1576	sub reset_at {	2295	sub reset_at {
1577	my ($self) = @_;	2296	my ($self) = @_;
1578		2297
1579	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1582		2300
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	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;
1585		2303
…		…
1596	my ($self) = @_;	2314	my ($self) = @_;
1597		2315
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2317
1600	return if $self->players;	2318	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2319
1603	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
		2321
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# need to save uniques path
		2325	unless ($self->{deny_save}) {
		2326	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2327
		2328	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2329	if $uniq;
		2330	}
1604		2331
1605	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1606		2333
1607	$self->in_memory (cf::MAP_SWAPPED);	2334	$self->deactivate;
		2335	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2336	$self->clear;
1609
1610	$_->clear_links_to ($self) for values %cf::MAP;
1611		2337
1612	$self->unlink_save;	2338	$self->unlink_save;
1613	$self->destroy;	2339	$self->destroy;
1614	}	2340	}
1615		2341
1616	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1617		2343
1618	sub nuke {	2344	sub nuke {
1619	my ($self) = @_;	2345	my ($self) = @_;
1620		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
1621	delete $cf::MAP{$self->path};	2350	delete $cf::MAP{$self->path};
1622		2351
1623	$self->unlink_save;	2352	$self->unlink_save;
1624		2353
1625	bless $self, "cf::map";	2354	bless $self, "cf::map::wrap";
1626	delete $self->{deny_reset};	2355	delete $self->{deny_reset};
1627	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1628	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1630		2359
1631	$cf::MAP{$self->path} = $self;	2360	$cf::MAP{$self->path} = $self;
		2361	}
1632		2362
1633	$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	]
1634	}	2400	}
1635		2401
1636	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1637		2403
1638	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2405	instantiated unique items. May block.
1640		2406
1641	=cut	2407	=cut
1642		2408
1643	sub unique_maps() {	2409	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2410	[
1645	or return;	2411	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2412	utf8::decode $_;
1651	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1652	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1653		2415	? ()
1654	push @paths, cf::map::normalise $_;	2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2418	]
1656
1657	\@paths
1658	}	2419	}
1659		2420
1660	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	}
1661		2452
1662	=back	2453	=back
1663		2454
1664	=head3 cf::object	2455	=head3 cf::object
1665		2456
…		…
1669		2460
1670	=over 4	2461	=over 4
1671		2462
1672	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1673		2464
1674	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.
1675		2467
1676	=cut	2468	=cut
1677		2469
1678	sub inv_recursive_;	2470	sub inv_recursive_;
1679	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1682		2474
1683	sub inv_recursive {	2475	sub inv_recursive {
1684	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1685	}	2477	}
1686		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
1687	package cf;	2507	package cf;
1688		2508
1689	=back	2509	=back
1690		2510
1691	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1697	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>
1698	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
1699	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1700		2520
1701	=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	};
1702		2536
1703	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1704	# with dialog boxes.	2538	# with dialog boxes.
1705	#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
1706	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1708		2542
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2544
1711	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1716	}	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 (@_);
1717	}	2570	}
1718		2571
1719	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1720		2573
1721	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1734		2587
1735	=item $player_object->enter_link	2588	=item $player_object->enter_link
1736		2589
1737	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}>).
1738		2591
1739	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.
1740	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.
1741		2596
1742	Will never block.	2597	Will never block.
1743		2598
1744	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1745		2600
…		…
1765	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1766	my ($self) = @_;	2621	my ($self) = @_;
1767		2622
1768	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1769		2624
		2625	++$self->{_link_recursion};
		2626
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2628
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1774		2631
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1776	}	2633	}
1777		2634
1778	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1780		2639
1781	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1782		2641
1783	unless ($map) {	2642	unless ($map) {
1784	# restore original map position	2643	# restore original map position
…		…
1795	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1796	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1797		2656
1798	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1799	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1800	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1801		2660
1802	$map->load;	2661	$map->load;
1803	$map->load_diag;	2662	$map->load_neighbours;
1804		2663
1805	return unless $self->contr->active;	2664	return unless $self->contr->active;
		2665
		2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2667	if ($self->enter_map ($map, $x, $y)) {
		2668	# entering was successful
		2669	delete $self->{_link_recursion};
		2670	# only activate afterwards, to support waiting in hooks
1806	$self->activate_recursive;	2671	$self->activate_recursive;
1807	$self->enter_map ($map, $x, $y);
1808	}
1809
1810	cf::player->attach (
1811	on_logout => sub {
1812	my ($pl) = @_;
1813
1814	# abort map switching before logout
1815	if ($pl->ob->{_link_pos}) {
1816	cf::sync_job {
1817	$pl->ob->leave_link
1818	};
1819	}
1820	},	2672	}
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2673
1824	# try to abort aborted map switching on player login :)	2674	}
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841		2675
1842	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1843		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
1844	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1845		2690
1846	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1847	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;
1848		2702
1849	$self->enter_link;	2703	$self->enter_link;
1850		2704
1851	(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
1852	my $map = eval {	2727	my $map = eval {
1853	my $map = cf::map::find $path;	2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1854	$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
1855	$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 $@;
1856	} or	2743	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1860	})->prio (1);	2751	})->prio (1);
1861	}	2752	}
1862		2753
1863	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1864		2755
…		…
1884	}	2775	}
1885		2776
1886	sub prepare_random_map {	2777	sub prepare_random_map {
1887	my ($exit) = @_;	2778	my ($exit) = @_;
1888		2779
1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
1890
1891	# all this does is basically replace the /! path by	2780	# all this does is basically replace the /! path by
1892	# a new random map path (?random/...) with a seed	2781	# a new random map path (?random/...) with a seed
1893	# that depends on the exit object	2782	# that depends on the exit object
1894		2783
1895	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
…		…
1897	if ($exit->map) {	2786	if ($exit->map) {
1898	$rmp->{region} = $exit->region->name;	2787	$rmp->{region} = $exit->region->name;
1899	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1900	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1901	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1902	}	2793	}
1903		2794
1904	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1905		2796
1906	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1907	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2799	my $meta = "$RANDOMDIR/$md5.meta";
1909		2800
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2803	undef $fh;
1913	aio_rename "$meta~", $meta;	2804	aio_rename "$meta~", $meta;
1914		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1915	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1916	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1917	}	2812	}
1918	}	2813	}
1919		2814
1920	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1921	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
1922		2817
1923	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1924		2819
1925	if ($exit->slaying eq "/!") {
1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
1927	cf::sync_job { prepare_random_map $exit };
1928	}
1929
1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1931	my $hp = $exit->stats->hp;
1932	my $sp = $exit->stats->sp;
1933
1934	$self->enter_link;	2820	$self->enter_link;
1935		2821
1936	(async {	2822	(async {
1937	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
1938	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
1939	$self->goto ($slaying, $hp, $sp);	2840	$self->goto ($map, $x, $y);
1940		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
1941	1;	2846	1
1942	}) {	2847	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2852
1948	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2854	$self->leave_link;
1950	}	2855	}
1951	})->prio (1);	2856	})->prio (1);
…		…
1964		2869
1965	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1967		2872
1968	utf8::encode $text;	2873	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2875	}
1971		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
		3064	=item $client->ext_msg ($type, @msg)
		3065
		3066	Sends an ext event to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_msg($$@) {
		3071	my ($self, $type, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
		3076	push @msg, msgtype => "event_$type";
		3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
		3097	}
1972		3098
1973	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1974		3100
1975	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1976	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>,
1977	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>.
1978		3104
1979	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
1980	reliable at some point in the future.	3106	become reliable at some point in the future.
1981		3107
1982	=cut	3108	=cut
1983		3109
1984	sub cf::client::query {	3110	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	3119	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		3121
1996	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1998	}	3126	}
1999		3127
2000	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	},
2001	on_reply => sub {	3134	on_reply => sub {
2002	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
2003		3136
2004	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
2005	# get handled first	3138	# get handled first
…		…
2017	} else {	3150	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	3152	}
2020	}	3153	}
2021	},	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	},
2022	);	3181	);
2023		3182
2024	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
2025		3184
2026	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
2042		3201
2043	$coro	3202	$coro
2044	}	3203	}
2045		3204
2046	cf::client->attach (	3205	cf::client->attach (
2047	on_destroy => sub {	3206	on_client_destroy => sub {
2048	my ($ns) = @_;	3207	my ($ns) = @_;
2049		3208
2050	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2051	},	3210	},
2052	);	3211	);
…		…
2067	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
2068	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
2069		3228
2070	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
2071		3230
2072	$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	));
2073		3236
2074	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2075		3238
2076	=pod	3239	=pod
2077		3240
2078	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2079		3242
2080	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
2081	cf::object::player player	3248	cf::object::player
2082	cf::player peaceful	3249	player
2083	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2084		3256
2085	=cut	3257	=cut
2086		3258
2087	for (	3259	for (
2088	["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)],
2089	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2091	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2092	) {	3266	) {
2093	no strict 'refs';	3267	no strict 'refs';
2094	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2095	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2113		3287
2114	my $qcode = $code;	3288	my $qcode = $code;
2115	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2116	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2117		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2118	local $_;	3295	local $_;
2119	local @safe::cf::_safe_eval_args = values %vars;
2120		3296
2121	my $eval =	3297	my $eval =
2122	"do {\n"	3298	"do {\n"
2123	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2124	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2125	. $code	3301	. $code
2126	. "\n}"	3302	. "\n}"
2127	;	3303	;
2128		3304
		3305	if ($CFG{safe_eval}) {
2129	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2130	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2131	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	}
2132		3314
2133	if ($@) {	3315	if ($@) {
2134	warn "$@";	3316	warn "$@";
2135	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2136	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2155	=cut	3337	=cut
2156		3338
2157	sub register_script_function {	3339	sub register_script_function {
2158	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2159		3341
2160	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2161	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2162	}	3344	}
2163		3345
2164	=back	3346	=back
2165		3347
2166	=cut	3348	=cut
2167
2168	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275		3349
2276	#############################################################################	3350	#############################################################################
2277	# the server's init and main functions	3351	# the server's init and main functions
2278		3352
		3353	sub load_facedata($) {
		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;
		3361
		3362	warn "loading facedata from $path\n";
		3363
		3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
		3367
		3368	$facedata = Coro::Storable::thaw $facedata;
		3369
		3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
		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
		3382	{
		3383	my $faces = $facedata->{faceinfo};
		3384
		3385	while (my ($face, $info) = each %$faces) {
		3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3387
		3388	cf::face::set_visibility $idx, $info->{visibility};
		3389	cf::face::set_magicmap $idx, $info->{magicmap};
		3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3392
		3393	cf::cede_to_tick;
		3394	}
		3395
		3396	while (my ($face, $info) = each %$faces) {
		3397	next unless $info->{smooth};
		3398
		3399	my $idx = cf::face::find $face
		3400	or next;
		3401
		3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
		3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3405	} else {
		3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	{
		3414	my $anims = $facedata->{animinfo};
		3415
		3416	while (my ($anim, $info) = each %$anims) {
		3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3418	cf::cede_to_tick;
		3419	}
		3420
		3421	cf::anim::invalidate_all; # d'oh
		3422	}
		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
		3443	1
		3444	}
		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
2279	sub load_resources {	3474	sub load_resource_file($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	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"
2281	or die "unable to load regions file\n";#d#	3490	or die "unable to load regions file\n";
2282	}
2283		3491
2284	sub cfg_load {	3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_archetypes;
		3518	reload_regions;
		3519	reload_treasures;
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
2285	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	3528	or return;
2287		3529
2288	local $/;	3530	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2290		3532
2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2292		3534
2293	$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};
2294	$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};
2295		3537
2296	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	3542	};
2301	warn $@ if $@;	3543	warn $@ if $@;
2302	}	3544	}
2303	}
2304		3545
2305	sub init {	3546	warn "finished reloading resource files\n";
2306	load_resources;	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;
2307	}	3575	}
2308		3576
2309	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
2310	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2312	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#
2313	(async {	3590	(async {
2314	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
2315	})->prio (Coro::PRIO_MAX);	3593	})->prio (Coro::PRIO_MAX);
2316	};	3594	};
2317		3595
2318	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
2319	db_load;	3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
		3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2320	load_extensions;	3619	load_extensions;
2321		3620
2322	$TICK_WATCHER->start;	3621	utime time, time, $RUNTIMEFILE;
2323	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;
2324	}	3634	}
2325		3635
2326	#############################################################################	3636	#############################################################################
2327	# initialisation and cleanup	3637	# initialisation and cleanup
2328		3638
2329	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2330	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2331	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2332	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2333	reentrant => 0,
2334	data => WF_AUTOCANCEL,
2335	signal => $signal,
2336	prio => 0,
2337	cb => sub {
2338	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2339	},
2340	);	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
2341	}	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 };
2342	}	3735	}
2343		3736
2344	sub emergency_save() {	3737	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2346		3739
2347	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2348		3741
2349	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
2350	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2351	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2352	# and maps saved/destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2353	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2354	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2355	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2356	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2357	$pl->save;	3756	$pl->save;
2358	}	3757	}
2359	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2360		3759
2361	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2362	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2363	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3763	$map->valid or next;
2365	$map->save;	3764	$map->save;
2366	}	3765	}
2367	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
		3767
		3768	warn "emergency_perl_save: begin database checkpoint\n";
		3769	BDB::db_env_txn_checkpoint $DB_ENV;
		3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2368	};	3775	};
2369		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2370	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2371	}	3783	}
2372		3784
		3785	sub post_cleanup {
		3786	my ($make_core) = @_;
		3787
		3788	warn Carp::longmess "post_cleanup backtrace"
		3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2373	sub reload() {	3820	sub do_reload_perl() {
2374	# can/must only be called in main	3821	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2376	warn "can only reload from main coroutine";	3823	warn "can only reload from main coroutine";
2377	return;	3824	return;
2378	}	3825	}
2379		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2380	warn "reloading...";	3832	warn "reloading...";
2381		3833
2382	warn "cancelling server ticker";	3834	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2385	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2386		3840
2387	eval {	3841	warn "syncing database to disk";
		3842	BDB::db_env_txn_checkpoint $DB_ENV;
		3843
2388	# 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
2389		3845
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392
2393	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}
2397
2398	warn "flushing outstanding aio requests";	3846	warn "flushing outstanding aio requests";
2399	for (;;) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2400	IO::AIO::flush;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2401	Coro::cede;
2402	last unless IO::AIO::nreqs;
2403	warn "iterate...";
2404	}
2405
2406	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();
2409
2410	warn "removing commands";
2411	%COMMAND = ();
2412
2413	warn "removing ext commands";
2414	%EXTCMD = ();
2415
2416	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";
2419
2420	if (my $cb = $pkg->can ("unload")) {
2421	eval {
2422	$cb->($pkg);
2423	1
2424	} or warn "$pkg unloaded, but with errors: $@";
2425	}	3849	}
2426		3850
2427	warn "... nuking $pkg";	3851	warn "cancelling all extension coros";
2428	Symbol::delete_package $pkg;	3852	$_->cancel for values %EXT_CORO;
2429	}	3853	%EXT_CORO = ();
2430		3854
2431	warn "unloading all perl modules loaded from $LIBDIR";	3855	warn "removing commands";
2432	while (my ($k, $v) = each %INC) {	3856	%COMMAND = ();
2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2434		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2435	warn "... unloading $k";	3864	warn "... unloading $pkg";
2436	delete $INC{$k};
2437		3865
2438	$k =~ s/\.pm$//;
2439	$k =~ s/\//::/g;
2440
2441	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2442	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2443	}	3875	}
2444		3876
2445	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;
2446	}	3892	}
2447		3893
2448	warn "getting rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2449	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2450	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);
2451		3897
2452	warn "unloading cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2454		3901
2455	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2456	# and global variables created in xs	3903	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2458		3905
2459	warn "unload completed, starting to reload now";	3906	warn "unload completed, starting to reload now";
2460		3907
2461	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2462	require cf;	3909	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2464		3911
2465	warn "loading config and database again";	3912	warn "loading config and database again";
2466	cf::cfg_load;	3913	cf::reload_config;
2467	cf::db_load;
2468		3914
2469	warn "loading extensions";	3915	warn "loading extensions";
2470	cf::load_extensions;	3916	cf::load_extensions;
2471		3917
		3918	if ($REATTACH_ON_RELOAD) {
2472	warn "reattaching attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2473	_global_reattach;	3920	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	3921	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
		3923	warn "reattaching attachments to players";
		3924	reattach $_ for values %PLAYER;
		3925	}
2476		3926
2477	warn "loading reloadable resources";	3927	warn "running post_init jobs";
2478	load_resources;	3928	(pop @POST_INIT)->(1) while @POST_INIT;
2479		3929
2480	warn "restarting server ticker";	3930	warn "leaving sync_job";
2481		3931
2482	$TICK_WATCHER->start;	3932	1
		3933	} or do {
		3934	warn $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
		3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2483	};	3959	};
2484		3960	}
2485	if ($@) {
2486	warn $@;
2487	warn "error while reloading, exiting.";
2488	exit 1;
2489	}
2490
2491	warn "reloaded";
2492	};
2493
2494	our $RELOAD_WATCHER; # used only during reload
2495		3961
2496	register_command "reload" => sub {	3962	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2498		3964
2499	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3966	$who->message ("reloading server.");
2501		3967	async {
2502	# doing reload synchronously and two reloads happen back-to-back,	3968	$Coro::current->{desc} = "perl_reload";
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;	3969	reload_perl;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);	3970	};
2514	}	3971	}
2515	};	3972	};
2516		3973
2517	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2518		3975
2519	my $bug_warning = 0;	3976	my $bug_warning = 0;
2520		3977
2521	$TICK_WATCHER = Event->timer (	3978	our @WAIT_FOR_TICK;
2522	reentrant => 0,	3979	our @WAIT_FOR_TICK_BEGIN;
2523	parked => 1,	3980
2524	prio => 0,	3981	sub wait_for_tick {
2525	at => $NEXT_TICK || $TICK,	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2526	data => WF_AUTOCANCEL,	3983
2527	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 {
2528	if ($Coro::current != $Coro::main) {	3998	if ($Coro::current != $Coro::main) {
2529	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"
2530	unless ++$bug_warning > 10;	4000	unless ++$bug_warning > 10;
2531	return;	4001	return;
2532	}	4002	}
2533		4003
2534	$NOW = Event::time;
2535
2536	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2537	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;
2539		4005
2540	$WAIT_FOR_TICK->broadcast;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2542		4007
2543	Event::sweep;	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2544	Coro::cede_notself;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2545		4010	Coro::async_pool {
2546	# my $AFTER = Event::time;	4011	$Coro::current->{desc} = "runtime saver";
2547	# warn $AFTER - $NOW;#d#
2548
2549	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2551
2552	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;
2554	},
2555	);
2556
2557	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,
2562	fd => IO::AIO::poll_fileno,
2563	poll => 'r',
2564	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,
2567	);
2568
2569	$WRITE_RUNTIME_WATCHER = Event->timer (
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	after => 1,
2573	interval => 10,
2574	prio => 6, # keep it lowest so it acts like a watchdog
2575	cb => Coro::unblock_sub {
2576	write_runtime	4012	write_runtime_sync
2577	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
		4014	};
2578	},	4015	}
2579	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
		4035
		4036	{
		4037	# configure BDB
		4038
		4039	BDB::min_parallel 16;
		4040	BDB::max_poll_reqs $TICK * 0.1;
		4041	$AnyEvent::BDB::WATCHER->priority (1);
		4042
		4043	unless ($DB_ENV) {
		4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4050
		4051	cf::sync_job {
		4052	eval {
		4053	BDB::db_env_open
		4054	$DB_ENV,
		4055	$BDBDIR,
		4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4058	0666;
		4059
		4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4061	};
		4062
		4063	cf::cleanup "db_env_open(db): $@" if $@;
		4064	};
		4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
		4076	}
		4077
		4078	{
		4079	# configure IO::AIO
		4080
		4081	IO::AIO::min_parallel 8;
		4082	IO::AIO::max_poll_time $TICK * 0.1;
		4083	undef $AnyEvent::AIO::WATCHER;
		4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2580		4131
2581	END { cf::emergency_save }	4132	END { cf::emergency_save }
2582		4133
2583	1	4134	1
2584		4135

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