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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 1.529 by root, Wed Apr 28 11:28:22 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	our $NOW;
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;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1041	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1042		1642
1043	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1048	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1049	}	1669	}
1050		1670
1051	=item cf::player::list_logins	1671	=item cf::player::list_logins
1052		1672
1053	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1055		1675
1056	=cut	1676	=cut
1057		1677
1058	sub list_logins {	1678	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1680	or return [];
1061		1681
1062	my @logins;	1682	my @logins;
1063		1683
1064	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1068		1694
1069	utf8::decode $login;	1695	utf8::decode $login;
1070	push @logins, $login;	1696	push @logins, $login;
1071	}	1697	}
1072		1698
1073	\@logins	1699	\@logins
1074	}	1700	}
1075		1701
1076	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1077		1705
1078	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1079	player. May block.	1707	player. May block.
1080		1708
1081	=cut	1709	=cut
…		…
1099	}	1727	}
1100		1728
1101	\@paths	1729	\@paths
1102	}	1730	}
1103		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1105		1737
1106	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1107		1739
1108	=cut	1740	=cut
1109		1741
1110	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1112		1744
1113	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1746	}
1117		1747
1118	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1119		1790
1120	=back	1791	=back
1121
1122		1792
1123	=head3 cf::map	1793	=head3 cf::map
1124		1794
1125	=over 4	1795	=over 4
1126		1796
…		…
1138	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1140		1810
1141	sub generate_random_map {	1811	sub generate_random_map {
1142	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1143	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1144	$self->_create_random_map (	1817	$self->_create_random_map (
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1148	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1149	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1173		1846
1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1175	}	1848	}
1176		1849
1177	# also paths starting with '/'	1850	# also paths starting with '/'
1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1179		1852
1180	sub thawer_merge {	1853	sub thawer_merge {
1181	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1182		1855
1183	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1184	local $self->{path};	1857	local $self->{path};
1185	local $self->{load_path};	1858	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1859
1189	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1190	}	1861	}
1191		1862
1192	sub normalise {	1863	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1240	return $self;	1911	return $self;
1241	}	1912	}
1242	}	1913	}
1243		1914
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1916	()
1246	}	1917	}
1247		1918
1248	sub init {	1919	sub init {
1249	my ($self) = @_;	1920	my ($self) = @_;
…		…
1264		1935
1265	# the original (read-only) location	1936	# the original (read-only) location
1266	sub load_path {	1937	sub load_path {
1267	my ($self) = @_;	1938	my ($self) = @_;
1268		1939
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1270	}	1941	}
1271		1942
1272	# the temporary/swap location	1943	# the temporary/swap location
1273	sub save_path {	1944	sub save_path {
1274	my ($self) = @_;	1945	my ($self) = @_;
1275		1946
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1278	}	1949	}
1279		1950
1280	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1281	sub uniq_path {	1952	sub uniq_path {
1282	my ($self) = @_;	1953	my ($self) = @_;
1283		1954
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1286	}	1957	}
1287		1958
1288	# and all this just because we cannot iterate over	1959	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	1960	my ($self) = @_;
1292		1961
1293	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1295	}	1965	}
1296		1966
1297	sub unlink_save {	1967	sub unlink_save {
1298	my ($self) = @_;	1968	my ($self) = @_;
1299		1969
1300	utf8::encode (my $save = $self->save_path);	1970	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1972	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	}	1973	}
1309		1974
1310	sub load_header_from($) {	1975	sub load_header_from($) {
1311	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1312		1977
1313	utf8::encode $path;	1978	utf8::encode $path;
1314	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1315	# or return;
1316
1317	$self->_load_header ($path)
1318	or return;	1980	or return;
		1981
		1982	$self->_load_header ($f)
		1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1319		1987
1320	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1321		1989
1322	1	1990	1
1323	}	1991	}
…		…
1362	$self->load_header_orig	2030	$self->load_header_orig
1363	or return;	2031	or return;
1364	$self->prepare_orig;	2032	$self->prepare_orig;
1365	}	2033	}
1366		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
1367	1	2041	1
1368	}	2042	}
1369		2043
1370	sub find;	2044	sub find;
1371	sub find {	2045	sub find {
1372	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1373		2047
1374	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1375		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1376	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1377		2052
1378	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1379	my $guard = cf::lock_acquire "map_find:$path";
1380	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1381	or return;	2055	or return;
1382		2056
1383	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1384		2058
1385	$map->load_header	2059	$map->load_header
1386	or return;	2060	or return;
1387		2061
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1391	$map->reset;	2067	$map->reset;
1392	undef $guard;
1393	return find $path;	2068	return find $path;
1394	}	2069	}
1395		2070
1396	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1397	}	2072	}
1398	}	2073	}
1399		2074
1400	sub pre_load { }	2075	sub pre_load { }
1401	sub post_load { }	2076	#sub post_load { } # XS
1402		2077
1403	sub load {	2078	sub load {
1404	my ($self) = @_;	2079	my ($self) = @_;
1405		2080
1406	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1407		2082
1408	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1409	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1410		2087
		2088	return unless $self->valid;
1411	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1412		2090
1413	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1414		2092
1415	$self->alloc;	2093	$self->alloc;
1416		2094
1417	$self->pre_load;	2095	$self->pre_load;
		2096	cf::cede_to_tick;
1418		2097
1419	$self->_load_objects ($self->{load_path}, 1)	2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1420	or return;	2101	or return;
1421		2102
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1423	if delete $self->{load_original};	2104	if delete $self->{load_original};
1424		2105
1425	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2107	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2110	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1430	}	2114	}
1431	}	2115	}
1432		2116
1433	Coro::cede;	2117	$f->resolve_delayed_derefs;
1434		2118
		2119	cf::cede_to_tick;
1435	# now do the right thing for maps	2120	# now do the right thing for maps
1436	$self->link_multipart_objects;	2121	$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)	2122	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	2123	unless $self->difficulty;
1446	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1447	$self->activate;	2131	$self->activate;
		2132	}
		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
		2137	$self->in_memory (cf::MAP_ACTIVE);
1448	}	2138	}
1449		2139
1450	$self->post_load;	2140	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	2141	}
1454		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1455	sub customise_for {	2146	sub customise_for {
1456	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1457		2148
1458	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	2150	if $self->per_player;
1460		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1461	$self	2155	$self
1462	}	2156	}
1463		2157
1464	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1465	sub load_diag {	2159	sub load_neighbours {
1466	my ($map) = @_;	2160	my ($map) = @_;
1467		2161
1468	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1469		2163
1470	for (0 .. 3) {	2164	for (0 .. 3) {
1471	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1472	or next;	2166	or next;
1473	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1474	or next;	2168	or next;
1475	$neigh->load;	2169	$neigh->load;
1476		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1479	}	2175	}
1480		2176
1481	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1482	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1483	or next;	2180	or next;
1484	$neigh->load;	2181	$neigh->load;
1485	}	2182	}
1486	}	2183	}
1487		2184
…		…
1492	}	2189	}
1493		2190
1494	sub do_load_sync {	2191	sub do_load_sync {
1495	my ($map) = @_;	2192	my ($map) = @_;
1496		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1497	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1498	}	2198	}
1499		2199
1500	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1501	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1502		2202
1503	sub find_async {	2203	sub find_async {
1504	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1505		2205
1506	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1507		2207
1508	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1510	}	2210	}
1511		2211
1512	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1513	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1514	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1516	my $map = find $path	2219	if (my $map = find $k) {
1517	or next;
1518	$map->load;	2220	$map->load if $v;
		2221	}
1519		2222
1520	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1521	}	2224	}
1522	}	2225	}
1523	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1524	};	2227	};
1525	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1526		2229
1527	()	2230	()
1528	}	2231	}
1529		2232
		2233	# common code, used by both ->save and ->swapout
1530	sub save {	2234	sub _save {
1531	my ($self) = @_;	2235	my ($self) = @_;
1532
1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
1534		2236
1535	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1536		2238
1537	return unless $self->dirty;	2239	return unless $self->dirty;
1538		2240
…		…
1544	return if $self->{deny_save};	2246	return if $self->{deny_save};
1545		2247
1546	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1547		2249
1548	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1549	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1550	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1551		2256
1552	if ($uniq) {	2257	if ($uniq) {
1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1555	} else {	2260	} else {
1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1557	}	2262	}
1558	}	2263	}
1559		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1560	sub swap_out {	2273	sub swap_out {
1561	my ($self) = @_;	2274	my ($self) = @_;
1562		2275
1563	# save first because save cedes
1564	$self->save;
1565
1566	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1567		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1568	return if $self->players;	2280	return if $self->players;
1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
1570	return if $self->{deny_save};
1571		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1572	$self->clear;	2291	$self->clear;
1573	$self->in_memory (cf::MAP_SWAPPED);
1574	}	2292	}
1575		2293
1576	sub reset_at {	2294	sub reset_at {
1577	my ($self) = @_;	2295	my ($self) = @_;
1578		2296
1579	# TODO: safety, remove and allow resettable per-player maps	2297	# 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};	2298	return 1e99 if $self->{deny_reset};
1582		2299
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		2302
…		…
1596	my ($self) = @_;	2313	my ($self) = @_;
1597		2314
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2316
1600	return if $self->players;	2317	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2318
1603	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1604		2330
1605	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1606		2332
1607	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2335	$self->clear;
1609
1610	$_->clear_links_to ($self) for values %cf::MAP;
1611		2336
1612	$self->unlink_save;	2337	$self->unlink_save;
1613	$self->destroy;	2338	$self->destroy;
1614	}	2339	}
1615		2340
1616	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1617		2342
1618	sub nuke {	2343	sub nuke {
1619	my ($self) = @_;	2344	my ($self) = @_;
1620		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1621	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1622		2350
1623	$self->unlink_save;	2351	$self->unlink_save;
1624		2352
1625	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1626	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1627	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1628	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1630		2358
1631	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1632		2361
1633	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1634	}	2399	}
1635		2400
1636	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1637		2402
1638	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2404	instantiated unique items. May block.
1640		2405
1641	=cut	2406	=cut
1642		2407
1643	sub unique_maps() {	2408	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1645	or return;	2410	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2411	utf8::decode $_;
1651	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1652	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1653		2414	? ()
1654	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2417	]
1656
1657	\@paths
1658	}	2418	}
1659		2419
1660	package cf;	2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
		2447	}
		2448
		2449	\@maps
		2450	}
1661		2451
1662	=back	2452	=back
1663		2453
1664	=head3 cf::object	2454	=head3 cf::object
1665		2455
…		…
1669		2459
1670	=over 4	2460	=over 4
1671		2461
1672	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1673		2463
1674	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1675		2466
1676	=cut	2467	=cut
1677		2468
1678	sub inv_recursive_;	2469	sub inv_recursive_;
1679	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1682		2473
1683	sub inv_recursive {	2474	sub inv_recursive {
1684	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1685	}	2476	}
1686		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1687	package cf;	2506	package cf;
1688		2507
1689	=back	2508	=back
1690		2509
1691	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1697	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1698	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1699	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1700		2519
1701	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1702		2535
1703	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1704	# with dialog boxes.	2537	# with dialog boxes.
1705	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1706	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1708		2541
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2543
1711	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1713	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1714	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1716	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1717	}	2569	}
1718		2570
1719	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1720		2572
1721	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1734		2586
1735	=item $player_object->enter_link	2587	=item $player_object->enter_link
1736		2588
1737	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1738		2590
1739	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1740	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1741		2595
1742	Will never block.	2596	Will never block.
1743		2597
1744	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1745		2599
…		…
1765	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1766	my ($self) = @_;	2620	my ($self) = @_;
1767		2621
1768	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1769		2623
		2624	++$self->{_link_recursion};
		2625
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2627
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1774		2630
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1776	}	2632	}
1777		2633
1778	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1780		2638
1781	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1782		2640
1783	unless ($map) {	2641	unless ($map) {
1784	# restore original map position	2642	# restore original map position
…		…
1795	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1796	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1797		2655
1798	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1799	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1800	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1801		2659
1802	$map->load;	2660	$map->load;
1803	$map->load_diag;	2661	$map->load_neighbours;
1804		2662
1805	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1806	$self->activate_recursive;	2670	$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	},	2671	}
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2672
1824	# try to abort aborted map switching on player login :)	2673	}
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		2674
1842	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1843		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1844	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1845		2689
1846	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1847	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1848		2701
1849	$self->enter_link;	2702	$self->enter_link;
1850		2703
1851	(async {	2704	(async {
		2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
1852	my $map = eval {	2726	my $map = eval {
1853	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1854	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
		2732	} else {
		2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
		2735
1855	$map	2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
1856	} or	2742	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1860	})->prio (1);	2750	})->prio (1);
1861	}	2751	}
1862		2752
1863	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1864		2754
…		…
1884	}	2774	}
1885		2775
1886	sub prepare_random_map {	2776	sub prepare_random_map {
1887	my ($exit) = @_;	2777	my ($exit) = @_;
1888		2778
1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
1890
1891	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1892	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1893	# that depends on the exit object	2781	# that depends on the exit object
1894		2782
1895	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
1897	if ($exit->map) {	2785	if ($exit->map) {
1898	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
1899	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1900	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1901	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1902	}	2792	}
1903		2793
1904	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1905		2795
1906	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1907	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1909		2799
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2802	undef $fh;
1913	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1914		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1915	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1916	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1917	}	2811	}
1918	}	2812	}
1919		2813
1920	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1921	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1922		2816
1923	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1924		2818
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;	2819	$self->enter_link;
1935		2820
1936	(async {	2821	(async {
1937	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1938	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
		2831	prepare_random_map $exit
		2832	if $exit->slaying eq "/!";
		2833	}
		2834
		2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
		2838
1939	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
1940		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1941	1;	2845	1
1942	}) {	2846	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1944	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1945	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2851
1948	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2853	$self->leave_link;
1950	}	2854	}
1951	})->prio (1);	2855	})->prio (1);
…		…
1964		2868
1965	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1967		2871
1968	utf8::encode $text;	2872	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2874	}
1971		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1972		3097
1973	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1974		3099
1975	Queues a query to the client, calling the given callback with	3100	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>,	3101	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>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1978		3103
1979	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1980	reliable at some point in the future.	3105	become reliable at some point in the future.
1981		3106
1982	=cut	3107	=cut
1983		3108
1984	sub cf::client::query {	3109	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	3118	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		3120
1996	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1998	}	3125	}
1999		3126
2000	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
2001	on_reply => sub {	3133	on_reply => sub {
2002	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2003		3135
2004	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2005	# get handled first	3137	# get handled first
…		…
2017	} else {	3149	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	3151	}
2020	}	3152	}
2021	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
2022	);	3180	);
2023		3181
2024	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2025		3183
2026	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2042		3200
2043	$coro	3201	$coro
2044	}	3202	}
2045		3203
2046	cf::client->attach (	3204	cf::client->attach (
2047	on_destroy => sub {	3205	on_client_destroy => sub {
2048	my ($ns) = @_;	3206	my ($ns) = @_;
2049		3207
2050	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2051	},	3209	},
2052	);	3210	);
…		…
2067	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2068	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2069		3227
2070	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2071		3229
2072	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2073		3235
2074	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2075		3237
2076	=pod	3238	=pod
2077		3239
2078	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2079		3241
2080	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2081	cf::object::player player	3247	cf::object::player
2082	cf::player peaceful	3248	player
2083	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2084		3255
2085	=cut	3256	=cut
2086		3257
2087	for (	3258	for (
2088	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2089	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2091	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2092	) {	3265	) {
2093	no strict 'refs';	3266	no strict 'refs';
2094	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2095	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2113		3286
2114	my $qcode = $code;	3287	my $qcode = $code;
2115	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2116	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2117		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2118	local $_;	3294	local $_;
2119	local @safe::cf::_safe_eval_args = values %vars;
2120		3295
2121	my $eval =	3296	my $eval =
2122	"do {\n"	3297	"do {\n"
2123	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2124	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2125	. $code	3300	. $code
2126	. "\n}"	3301	. "\n}"
2127	;	3302	;
2128		3303
		3304	if ($CFG{safe_eval}) {
2129	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2130	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2131	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2132		3313
2133	if ($@) {	3314	if ($@) {
2134	warn "$@";	3315	warn "$@";
2135	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2136	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2155	=cut	3336	=cut
2156		3337
2157	sub register_script_function {	3338	sub register_script_function {
2158	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2159		3340
2160	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2161	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2162	}	3343	}
2163		3344
2164	=back	3345	=back
2165		3346
2166	=cut	3347	=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]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275		3348
2276	#############################################################################	3349	#############################################################################
2277	# the server's init and main functions	3350	# the server's init and main functions
2278		3351
		3352	sub load_facedata($) {
		3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3360
		3361	warn "loading facedata from $path\n";
		3362
		3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
		3366
		3367	$facedata = Coro::Storable::thaw $facedata;
		3368
		3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
		3381	{
		3382	my $faces = $facedata->{faceinfo};
		3383
		3384	while (my ($face, $info) = each %$faces) {
		3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
		3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
		3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3391
		3392	cf::cede_to_tick;
		3393	}
		3394
		3395	while (my ($face, $info) = each %$faces) {
		3396	next unless $info->{smooth};
		3397
		3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
2279	sub load_resources {	3473	sub load_resource_file($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
2281	or die "unable to load regions file\n";#d#	3489	or die "unable to load regions file\n";
2282	}
2283		3490
2284	sub cfg_load {	3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2285	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	3527	or return;
2287		3528
2288	local $/;	3529	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2290		3531
2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2292		3533
2293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2295		3536
2296	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	3541	};
2301	warn $@ if $@;	3542	warn $@ if $@;
2302	}	3543	}
2303	}
2304		3544
2305	sub init {	3545	warn "finished reloading resource files\n";
2306	load_resources;	3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2307	}	3574	}
2308		3575
2309	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2310	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2312	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2313	(async {	3589	(async {
2314	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2315	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2316	};	3593	};
2317		3594
2318	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2319	db_load;	3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
		3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2320	load_extensions;	3618	load_extensions;
2321		3619
2322	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2323	Event::loop;	3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2324	}	3633	}
2325		3634
2326	#############################################################################	3635	#############################################################################
2327	# initialisation and cleanup	3636	# initialisation and cleanup
2328		3637
2329	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2330	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2331	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2332	Event->signal (	3642	$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";	3643	cf::cleanup "SIG$signal";
2339	},
2340	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2341	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2342	}	3734	}
2343		3735
2344	sub emergency_save() {	3736	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2346		3738
2347	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2348		3740
2349	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2350	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2351	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2352	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2353	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2354	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2355	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2356	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2357	$pl->save;	3755	$pl->save;
2358	}	3756	}
2359	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2360		3758
2361	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2362	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2363	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3762	$map->valid or next;
2365	$map->save;	3763	$map->save;
2366	}	3764	}
2367	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2368	};	3774	};
2369		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2370	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2371	}	3782	}
2372		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
		3817	}
		3818
2373	sub reload() {	3819	sub do_reload_perl() {
2374	# can/must only be called in main	3820	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2376	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2377	return;	3823	return;
2378	}	3824	}
2379		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2380	warn "reloading...";	3831	warn "reloading...";
2381		3832
2382	warn "cancelling server ticker";	3833	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2385	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2386		3839
2387	eval {	3840	warn "syncing database to disk";
		3841	BDB::db_env_txn_checkpoint $DB_ENV;
		3842
2388	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2389		3844
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";	3845	warn "flushing outstanding aio requests";
2399	for (;;) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2400	IO::AIO::flush;	3847	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	}	3848	}
2426		3849
2427	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2428	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2429	}	3852	%EXT_CORO = ();
2430		3853
2431	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2432	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2434		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2435	warn "... unloading $k";	3863	warn "... unloading $pkg";
2436	delete $INC{$k};
2437		3864
2438	$k =~ s/\.pm$//;
2439	$k =~ s/\//::/g;
2440
2441	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2442	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2443	}	3874	}
2444		3875
2445	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2446	}	3891	}
2447		3892
2448	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2449	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2451		3896
2452	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2454		3900
2455	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2456	# and global variables created in xs	3902	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2458		3904
2459	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2460		3906
2461	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2462	require cf;	3908	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2464		3910
2465	warn "loading config and database again";	3911	warn "loading config and database again";
2466	cf::cfg_load;	3912	cf::reload_config;
2467	cf::db_load;
2468		3913
2469	warn "loading extensions";	3914	warn "loading extensions";
2470	cf::load_extensions;	3915	cf::load_extensions;
2471		3916
		3917	if ($REATTACH_ON_RELOAD) {
2472	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2473	_global_reattach;	3919	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
2476		3925
2477	warn "loading reloadable resources";	3926	warn "running post_init jobs";
2478	load_resources;	3927	(pop @POST_INIT)->(1) while @POST_INIT;
2479		3928
2480	warn "restarting server ticker";	3929	warn "leaving sync_job";
2481		3930
2482	$TICK_WATCHER->start;	3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2483	};	3958	};
2484		3959	}
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		3960
2496	register_command "reload" => sub {	3961	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2498		3963
2499	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2501		3966	async {
2502	# doing reload synchronously and two reloads happen back-to-back,	3967	$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;	3968	reload_perl;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);	3969	};
2514	}	3970	}
2515	};	3971	};
2516		3972
2517	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2518		3974
2519	my $bug_warning = 0;	3975	my $bug_warning = 0;
2520		3976
2521	$TICK_WATCHER = Event->timer (	3977	our @WAIT_FOR_TICK;
2522	reentrant => 0,	3978	our @WAIT_FOR_TICK_BEGIN;
2523	parked => 1,	3979
2524	prio => 0,	3980	sub wait_for_tick {
2525	at => $NEXT_TICK || $TICK,	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2526	data => WF_AUTOCANCEL,	3982
2527	cb => sub {	3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
2528	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2531	return;	4000	return;
2532	}	4001	}
2533		4002
2534	$NOW = Event::time;
2535
2536	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2537	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;
2539		4004
2540	$WAIT_FOR_TICK->broadcast;	4005	#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		4006
2543	Event::sweep;	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2544	Coro::cede_notself;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2545		4009	Coro::async_pool {
2546	# my $AFTER = Event::time;	4010	$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	4011	write_runtime_sync
2577	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
		4013	};
2578	},	4014	}
2579	);	4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
		4034
		4035	{
		4036	# configure BDB
		4037
		4038	BDB::min_parallel 16;
		4039	BDB::max_poll_reqs $TICK * 0.1;
		4040	$AnyEvent::BDB::WATCHER->priority (1);
		4041
		4042	unless ($DB_ENV) {
		4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4049
		4050	cf::sync_job {
		4051	eval {
		4052	BDB::db_env_open
		4053	$DB_ENV,
		4054	$BDBDIR,
		4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4057	0666;
		4058
		4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4060	};
		4061
		4062	cf::cleanup "db_env_open(db): $@" if $@;
		4063	};
		4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
		4075	}
		4076
		4077	{
		4078	# configure IO::AIO
		4079
		4080	IO::AIO::min_parallel 8;
		4081	IO::AIO::max_poll_time $TICK * 0.1;
		4082	undef $AnyEvent::AIO::WATCHER;
		4083	}
		4084
		4085	my $_log_backtrace;
		4086
		4087	sub _log_backtrace {
		4088	my ($msg, @addr) = @_;
		4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
		4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2580		4130
2581	END { cf::emergency_save }	4131	END { cf::emergency_save }
2582		4132
2583	1	4133	1
2584		4134

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