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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.187 by root, Sat Jan 20 21:06:52 2007 UTC vs.
Revision 1.519 by root, Fri Apr 16 02:32:25 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 3.4 ();	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 = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	118	our $NEXT_TICK;
52	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
53		127
54	our %CFG;	128	our %CFG;
55		129
56	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
58		133
59	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		137
67	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
70	binmode STDOUT;	151	binmode STDOUT;
71	binmode STDERR;	152	binmode STDERR;
72		153
73	# read virtual server time, if available	154	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
78	}	159	}
79		160
80	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	162
82	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		165
86	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		180
88	#############################################################################	181	#############################################################################
89		182
90	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
91		184
…		…
98	=item $cf::RUNTIME	191	=item $cf::RUNTIME
99		192
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	194	every server tick.
102		195
103	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		199
105	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
107		204
108	=item $cf::NOW	205	=item $cf::NOW
109		206
110	The time of the last (current) server tick.	207	The time of the last (current) server tick.
111		208
112	=item $cf::TICK	209	=item $cf::TICK
113		210
114	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
115		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
116	=item %cf::CFG	223	=item %cf::CFG
117		224
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	226	from wherever your confdir points to.
120		227
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		229
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	231	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
127		245
128	=back	246	=back
129		247
130	=cut	248	=cut
131		249
132	BEGIN {	250	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	251	my $msg = join "", @_;
135	utf8::encode $msg;
136		252
137	$msg .= "\n"	253	$msg .= "\n"
138	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
139		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
140	LOG llevError, $msg;	258	LOG llevError, $msg;
141	};	259	};
142	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
143		274
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		282
151	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	284	# within the Safe compartment.
153	for my $pkg (qw(	285	for my $pkg (qw(
154	cf::global cf::attachable	286	cf::global cf::attachable
155	cf::object cf::object::player	287	cf::object cf::object::player
156	cf::client cf::player	288	cf::client cf::player
157	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
158	cf::map cf::party cf::region	291	cf::party cf::region
159	)) {	292	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	294	}
163		295
164	$Event::DIED = sub {	296	$EV::DIED = sub {
165	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
166	};	298	};
		299
		300	#############################################################################
167		301
168	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
169		303
170	=over 4	304	=over 4
171		305
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	325	$d
192	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
193	}	327	}
194		328
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
198		330
199	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
200		332
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
209		334
210	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
211		336
212	=cut	337	=cut
213		338
214	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
216	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
217	}	356	}
218		357
219	=item cf::lock_wait $string	358	=item cf::lock_wait $string
220		359
221	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
222		361
223	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
224		363
225	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
228	returned.	367	returned.
229		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
230	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
232		374
233	=cut	375	=item $locked = cf::lock_active $string
234		376
235	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
236		382
237	sub lock_wait($) {	383	sub lock_wait($) {
238	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	385	}
246		386
247	sub lock_acquire($) {	387	sub lock_acquire($) {
248	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
249		390
250	# wait, to be sure we are not locked	391	sub lock_active($) {
251	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	393	}
260		394
261	sub freeze_mainloop {	395	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
263		397
264	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	399	}
266	$WRITE_RUNTIME_WATCHER->start;	400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
267	};	465	}
268	$WRITE_RUNTIME_WATCHER->stop;	466	};
269	$TICK_WATCHER->stop;	467
270	$guard	468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
271	}	481	}
272		482
273	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
274		484
275	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		490
281	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
282		492
283	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
284		494
285	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
288		499
289	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
292	fast or be very important.	503	fast or be very important.
…		…
295		506
296	sub sync_job(&) {	507	sub sync_job(&) {
297	my ($job) = @_;	508	my ($job) = @_;
298		509
299	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
300	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
302		515
303	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	517
305	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
306		519
307	my $busy = 1;	520	my $busy = 1;
308	my @res;	521	my @res;
309		522
310	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	525	@res = eval { $job->() };
312	warn $@ if $@;	526	warn $@ if $@;
313	undef $busy;	527	undef $busy;
314	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
315		529
316	while ($busy) {	530	while ($busy) {
317	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
318	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
319		541
320	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
321	} else {	543	} else {
322	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
323		545
…		…
343	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
344		566
345	$coro	567	$coro
346	}	568	}
347		569
348	sub write_runtime {	570	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		571
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	Executes the given code block with the given arguments in a seperate
352	or return;	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
353		576
354	my $value = $cf::RUNTIME + 90 + 10;	577	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		578
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	sub fork_call(&@) {
359	and return;	580	my ($cb, @args) = @_;
360		581
361	aio_fsync $fh	582	# we seemingly have to make a local copy of the whole thing,
362	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
363		585
364	close $fh	586	my @res = Coro::Util::fork_eval {
365	or return;	587	reset_signals;
		588	&$cb
		589	}, @args;
366		590
367	aio_rename "$runtime~", $runtime	591	wantarray ? @res : $res[-1]
368	and return;	592	}
369		593
		594	sub objinfo {
370	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	768	}
372		769
373	=back	770	=back
374		771
375	=cut	772	=cut
376		773
377	#############################################################################	774	#############################################################################
378		775
379	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
380		777
381	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
384		781
385	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	784	Deliantra).
388		785
389	=over 4	786	=over 4
390		787
391	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
392		789
…		…
436	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
437		834
438	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
440		837
441	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
443		840
444	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
445		842
446	=over 4	843	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
556		953
557	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		958
562	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	960	my $pkg = shift @arg;
564		961
565	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
595	}	992	}
596		993
597	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
598	} else {	995	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	997	}
601		998
602	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
603	}	1000	}
604		1001
…		…
606	if (ref $_[0]) {	1003	if (ref $_[0]) {
607	_object_attach @_;	1004	_object_attach @_;
608	} else {	1005	} else {
609	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
610	}	1007	}
		1008	_recalc_want;
611	};	1009	};
612		1010
613	# all those should be optimised	1011	# all those should be optimised
614	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
619	reattach ($obj);	1017	reattach ($obj);
620	} else {	1018	} else {
621	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
622	}	1020	}
		1021	_recalc_want;
623	};	1022	};
624		1023
625	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
627		1026
…		…
642	";	1041	";
643	die if $@;	1042	die if $@;
644	}	1043	}
645		1044
646	our $override;	1045	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1047
649	sub override {	1048	sub override {
650	$override = 1;	1049	$override = 1;
651	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
652	}	1051	}
653		1052
654	sub do_invoke {	1053	sub do_invoke {
655	my $event = shift;	1054	my $event = shift;
656	my $callbacks = shift;	1055	my $callbacks = shift;
657		1056
658	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
659		1058
660	local $override;	1059	local $override;
661		1060
662	for (@$callbacks) {	1061	for (@$callbacks) {
663	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
672	}	1071	}
673		1072
674	0	1073	0
675	}	1074	}
676		1075
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1077
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1079
681	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
682		1081
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1085
687	=back	1086	=back
688		1087
689	=cut	1088	=cut
690		1089
691	#############################################################################	1090	#############################################################################
692	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
693		1134
694	sub reattach {	1135	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1137	my ($obj) = @_;
697		1138
		1139	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1141
700	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
701		1143
702	@$registry = ();	1144	@$registry = ();
703		1145
…		…
718	cf::attachable->attach (	1160	cf::attachable->attach (
719	prio => -1000000,	1161	prio => -1000000,
720	on_instantiate => sub {	1162	on_instantiate => sub {
721	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
722		1164
723	$data = from_json $data;	1165	$data = decode_json $data;
724		1166
725	for (@$data) {	1167	for (@$data) {
726	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
727		1169
728	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1186	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
746		1188
747	sync_job {	1189	sync_job {
748	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
751		1194
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
755	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
756	close $fh;	1202	aio_close $fh;
757		1203
758	if (@$objs) {	1204	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
		1209	if ($cf::USE_FSYNC) {
		1210	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1211	aio_fsync $fh;
		1212	}
764	close $fh;	1213	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
766	}	1215	}
767	} else {	1216	} else {
768	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
769	}	1218	}
770		1219
771	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1224	} else {
773	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
774	}	1226	}
775	} else {	1227	} else {
776	aio_unlink $filename;	1228	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
778	}	1230	}
779	}	1231	};
780	}	1232	}
781		1233
782	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
784		1236
…		…
796	or return;	1248	or return;
797		1249
798	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
800	or return;	1252	or return;
		1253
801	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
802	}	1256	}
803		1257
		1258	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
806	return ($data, $av);	1262	($data, $av)
807	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
808		1270
809	#############################################################################	1271	#############################################################################
810	# command handling &c	1272	# command handling &c
811		1273
812	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1288	}
827		1289
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1291
830	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
831		1297
832	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
833	called.	1299	called.
834		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
835	=cut	1312	=cut
836		1313
837	sub register_extcmd {	1314	sub register_extcmd {
838	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
839		1316
840	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
841	}	1318	}
842		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
843	cf::player->attach (	1328	cf::player->attach (
844	on_command => sub {	1329	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
846		1331
847	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
848	or return;	1333	or return;
849		1334
…		…
854	cf::override;	1339	cf::override;
855	},	1340	},
856	on_extcmd => sub {	1341	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
858		1343
859	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1345
861	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
867	} else {	1361	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1363	}
870		1364
871	cf::override;	1365	cf::override;
872	},	1366	},
873	);	1367	);
874		1368
		1369	# "readahead" all extensions
875	sub load_extension {	1370	sub cache_extensions {
876	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
877		1372
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1376	}
903	die $@;
904	}	1377	};
905		1378
906	push @EXTS, $pkg;	1379	$grp
907	}	1380	}
908		1381
909	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
910	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1387	next unless -r $path;
912	eval {	1388
913	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
914	1	1449	}
915	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
916	}	1460	};
917	}	1461	}
918		1462
919	#############################################################################	1463	#############################################################################
920		1464
		1465	=back
		1466
921	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
922		1468
923	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
924		1470
925	=cut	1471	=cut
926		1472
927	package cf::player;	1473	package cf::player;
928		1474
…		…
930		1476
931	=head3 cf::player	1477	=head3 cf::player
932		1478
933	=over 4	1479	=over 4
934		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
935	=item cf::player::find $login	1495	=item cf::player::find $login
936		1496
937	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
938		1498
939	=cut	1499	=cut
940		1500
941	sub playerdir($) {	1501	sub playerdir($) {
942	cf::localdir	1502	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1504	}
948		1505
949	sub path($) {	1506	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1508
952	(playerdir $login) . "/$login.pl"	1509	(playerdir $login) . "/playerdata"
953	}	1510	}
954		1511
955	sub find_active($) {	1512	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1513	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1514	and $cf::PLAYER{$_[0]}->active
…		…
960		1517
961	sub exists($) {	1518	sub exists($) {
962	my ($login) = @_;	1519	my ($login) = @_;
963		1520
964	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1522	or !aio_stat path $login
966	}	1523	}
967		1524
968	sub find($) {	1525	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1527	my $login = $_[0];
971		1528
972	my $guard = cf::lock_acquire "user_find:$login";	1529	my $guard = cf::lock_acquire "user_find:$login";
973		1530
974	$cf::PLAYER{$_[0]} || do {	1531	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
976	or return;	1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
978	}	1548	}
979	}	1549	}
980	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($pl, $path) = @_;
		1555
		1556	# restore slots saved in save, below
		1557	my $slots = delete $pl->{_slots};
		1558
		1559	$pl->ob->current_weapon ($slots->[0]);
		1560	$pl->combat_ob ($slots->[1]);
		1561	$pl->ranged_ob ($slots->[2]);
		1562	},
		1563	);
981		1564
982	sub save($) {	1565	sub save($) {
983	my ($pl) = @_;	1566	my ($pl) = @_;
984		1567
985	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
990	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
991		1574
992	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
994		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
995	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
996	Coro::cede;	1584	cf::cede_to_tick;
997	}	1585	}
998		1586
999	sub new($) {	1587	sub new($) {
1000	my ($login) = @_;	1588	my ($login) = @_;
1001		1589
…		…
1007	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
1008		1596
1009	$self	1597	$self
1010	}	1598	}
1011		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
1012	=item $pl->quit_character	1610	=item $pl->quit_character
1013		1611
1014	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1016		1614
1017	=cut	1615	=cut
1018		1616
1019	sub quit_character {	1617	sub quit_character {
1020	my ($pl) = @_;	1618	my ($pl) = @_;
1021		1619
		1620	my $name = $pl->ob->name;
		1621
1022	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1624
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1029		1631
1030	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1634	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1635	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1636	$pl->destroy;
		1637
		1638	my $prefix = qr<^~\Q$name\E/>;
		1639
		1640	# nuke player maps
		1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1642
1035	IO::AIO::aio_rmtree $temp;	1643	IO::AIO::aio_rmtree $temp;
		1644	}
		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
1036	}	1658	}
1037		1659
1038	=item cf::player::list_logins	1660	=item cf::player::list_logins
1039		1661
1040	Returns am arrayref of all valid playernames in the system, can take a	1662	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1663	while and may block, so not sync_job-capable, ever.
1042		1664
1043	=cut	1665	=cut
1044		1666
1045	sub list_logins {	1667	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1668	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1669	or return [];
1048		1670
1049	my @logins;	1671	my @logins;
1050		1672
1051	for my $login (@$dirs) {	1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1055		1683
1056	utf8::decode $login;	1684	utf8::decode $login;
1057	push @logins, $login;	1685	push @logins, $login;
1058	}	1686	}
1059		1687
…		…
1067		1695
1068	=cut	1696	=cut
1069		1697
1070	sub maps($) {	1698	sub maps($) {
1071	my ($pl) = @_;	1699	my ($pl) = @_;
		1700
		1701	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1702
1073	my $files = aio_readdir playerdir $pl	1703	my $files = aio_readdir playerdir $pl
1074	or return;	1704	or return;
1075		1705
1076	my @paths;	1706	my @paths;
…		…
1078	for (@$files) {	1708	for (@$files) {
1079	utf8::decode $_;	1709	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1710	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1711	next unless /^$PATH_SEP/o;
1082		1712
1083	s/\.map$//;	1713	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1714	}
1086		1715
1087	\@paths	1716	\@paths
1088	}	1717	}
1089		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1091		1724
1092	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1093		1726
1094	=cut	1727	=cut
1095		1728
1096	sub ext_reply($$$%) {	1729	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1098		1731
1099	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1733	}
1103		1734
1104	package cf;	1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		1747	=head3 cf::region
		1748
		1749	=over 4
		1750
		1751	=cut
		1752
		1753	package cf::region;
		1754
		1755	=item cf::region::find_by_path $path
		1756
		1757	Tries to decuce the likely region for a map knowing only its path.
		1758
		1759	=cut
		1760
		1761	sub find_by_path($) {
		1762	my ($path) = @_;
		1763
		1764	my ($match, $specificity);
		1765
		1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
		1774	}
1105		1775
1106	=back	1776	=back
1107
1108		1777
1109	=head3 cf::map	1778	=head3 cf::map
1110		1779
1111	=over 4	1780	=over 4
1112		1781
…		…
1124	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1126		1795
1127	sub generate_random_map {	1796	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
1129	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1802	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1167	my ($self, $merge) = @_;	1839	my ($self, $merge) = @_;
1168		1840
1169	# we have to keep some variables in memory intact	1841	# we have to keep some variables in memory intact
1170	local $self->{path};	1842	local $self->{path};
1171	local $self->{load_path};	1843	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1844
1175	$self->SUPER::thawer_merge ($merge);	1845	$self->SUPER::thawer_merge ($merge);
1176	}	1846	}
1177		1847
1178	sub normalise {	1848	sub normalise {
1179	my ($path, $base) = @_;	1849	my ($path, $base) = @_;
		1850
		1851	$path = "$path"; # make sure its a string
		1852
		1853	$path =~ s/\.map$//;
1180		1854
1181	# map plan:	1855	# map plan:
1182	#	1856	#
1183	# /! non-realised random map exit (special hack!)	1857	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1858	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1222	return $self;	1896	return $self;
1223	}	1897	}
1224	}	1898	}
1225		1899
1226	Carp::carp "unable to resolve path '$path'.";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1227	()	1901	()
1228	}	1902	}
1229		1903
1230	sub init {	1904	sub init {
1231	my ($self) = @_;	1905	my ($self) = @_;
…		…
1246		1920
1247	# the original (read-only) location	1921	# the original (read-only) location
1248	sub load_path {	1922	sub load_path {
1249	my ($self) = @_;	1923	my ($self) = @_;
1250		1924
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1925	"$MAPDIR/$self->{path}.map"
1252	}	1926	}
1253		1927
1254	# the temporary/swap location	1928	# the temporary/swap location
1255	sub save_path {	1929	sub save_path {
1256	my ($self) = @_;	1930	my ($self) = @_;
1257		1931
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1933	"$TMPDIR/$path.map"
1260	}	1934	}
1261		1935
1262	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1263	sub uniq_path {	1937	sub uniq_path {
1264	my ($self) = @_;	1938	my ($self) = @_;
1265		1939
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1941	"$UNIQUEDIR/$path"
1268	}	1942	}
1269		1943
1270	# and all this just because we cannot iterate over	1944	sub decay_objects {
1271	# all maps in C++...
1272	sub change_all_map_light {
1273	my ($change) = @_;	1945	my ($self) = @_;
1274		1946
1275	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1276	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1277	}	1950	}
1278		1951
1279	sub unlink_save {	1952	sub unlink_save {
1280	my ($self) = @_;	1953	my ($self) = @_;
1281		1954
…		…
1286		1959
1287	sub load_header_from($) {	1960	sub load_header_from($) {
1288	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1289		1962
1290	utf8::encode $path;	1963	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1292	or return;	1965	or return;
1293		1966
1294	$self->_load_header ($path)	1967	$self->_load_header ($f)
1295	or return;	1968	or return;
1296		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
		1972
1297	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1298		1974
1299	1	1975	1
1300	}	1976	}
1301		1977
1302	sub load_orig {	1978	sub load_header_orig {
1303	my ($self) = @_;	1979	my ($self) = @_;
1304		1980
1305	$self->load_header_from ($self->load_path)	1981	$self->load_header_from ($self->load_path)
1306	}	1982	}
1307		1983
1308	sub load_temp {	1984	sub load_header_temp {
1309	my ($self) = @_;	1985	my ($self) = @_;
1310		1986
1311	$self->load_header_from ($self->save_path)	1987	$self->load_header_from ($self->save_path)
		1988	}
		1989
		1990	sub prepare_temp {
		1991	my ($self) = @_;
		1992
		1993	$self->last_access ((delete $self->{last_access})
		1994	|| $cf::RUNTIME); #d#
		1995	# safety
		1996	$self->{instantiate_time} = $cf::RUNTIME
		1997	if $self->{instantiate_time} > $cf::RUNTIME;
		1998	}
		1999
		2000	sub prepare_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->{load_original} = 1;
		2004	$self->{instantiate_time} = $cf::RUNTIME;
		2005	$self->last_access ($cf::RUNTIME);
		2006	$self->instantiate;
1312	}	2007	}
1313		2008
1314	sub load_header {	2009	sub load_header {
1315	my ($self) = @_;	2010	my ($self) = @_;
1316		2011
1317	if ($self->load_temp) {	2012	if ($self->load_header_temp) {
1318	$self->last_access ((delete $self->{last_access})	2013	$self->prepare_temp;
1319	|| $cf::RUNTIME); #d#
1320	# safety
1321	$self->{instantiate_time} = $cf::RUNTIME
1322	if $self->{instantiate_time} > $cf::RUNTIME;
1323	} else {	2014	} else {
1324	$self->load_orig	2015	$self->load_header_orig
1325	or return;	2016	or return;
1326		2017	$self->prepare_orig;
1327	$self->{load_original} = 1;
1328	$self->{instantiate_time} = $cf::RUNTIME;
1329	$self->last_access ($cf::RUNTIME);
1330	$self->instantiate;
1331	}	2018	}
		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
		2023	$self->default_region (cf::region::find_by_path $self->{path})
		2024	unless $self->default_region;
1332		2025
1333	1	2026	1
1334	}	2027	}
1335		2028
1336	sub find;	2029	sub find;
1337	sub find {	2030	sub find {
1338	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1339		2032
1340	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1341		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1342	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1343		2037
1344	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1345	my $guard = cf::lock_acquire "map_find:$path";
1346	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1347	or return;	2040	or return;
1348		2041
1349	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1350		2043
1351	$map->load_header	2044	$map->load_header
1352	or return;	2045	or return;
1353		2046
1354	if ($map->should_reset) {	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1355	# doing this can freeze the server in a sync job, obviously	2048	# doing this can freeze the server in a sync job, obviously
1356	#$cf::WAIT_FOR_TICK->wait;	2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1357	$map->reset;	2052	$map->reset;
1358	undef $guard;
1359	$map = find $path	2053	return find $path;
1360	or return;
1361	}	2054	}
1362		2055
1363	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1364	}	2057	}
1365	}	2058	}
		2059
		2060	sub pre_load { }
		2061	#sub post_load { } # XS
1366		2062
1367	sub load {	2063	sub load {
1368	my ($self) = @_;	2064	my ($self) = @_;
1369		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1370	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1371	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1372		2072
		2073	return unless $self->valid;
1373	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1374		2075
1375	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1376		2077
1377	$self->alloc;	2078	$self->alloc;
1378	$self->_load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1379	or return;	2086	or return;
1380		2087
1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1382	if delete $self->{load_original};	2089	if delete $self->{load_original};
1383		2090
1384	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1385	utf8::encode $uniq;	2092	utf8::encode $uniq;
1386	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1387	$self->clear_unique_items;	2095	$self->clear_unique_items;
1388	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1389	}	2099	}
1390	}	2100	}
1391		2101
1392	Coro::cede;	2102	$f->resolve_delayed_derefs;
1393		2103
		2104	cf::cede_to_tick;
1394	# now do the right thing for maps	2105	# now do the right thing for maps
1395	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1396
1397	unless ($self->{deny_activate}) {
1398	$self->decay_objects;
1399	$self->fix_auto_apply;
1400	$self->update_buttons;
1401	Coro::cede;
1402	$self->set_darkness_map;
1403	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1404	unless $self->difficulty;	2108	unless $self->difficulty;
1405	Coro::cede;	2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
1406	$self->activate;	2116	$self->activate;
1407	}	2117	}
1408		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
1409	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
1410	}	2123	}
1411		2124
		2125	$self->post_load;
		2126	}
		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
1412	sub customise_for {	2131	sub customise_for {
1413	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1414		2133
1415	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1416	if $self->per_player;	2135	if $self->per_player;
1417		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1418	$self	2140	$self
1419	}	2141	}
1420		2142
1421	# find and load all maps in the 3x3 area around a map	2143	# find and load all maps in the 3x3 area around a map
1422	sub load_diag {	2144	sub load_neighbours {
1423	my ($map) = @_;	2145	my ($map) = @_;
1424		2146
1425	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1426		2148
1427	for (0 .. 3) {	2149	for (0 .. 3) {
1428	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1429	or next;	2151	or next;
1430	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1431	or next;	2153	or next;
1432	$neigh->load;	2154	$neigh->load;
1433		2155
		2156	push @neigh,
1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1436	}	2159	}
1437		2160
1438	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1439	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1440	or next;	2164	or next;
1441	$neigh->load;	2165	$neigh->load;
1442	}	2166	}
1443	}	2167	}
1444		2168
…		…
1449	}	2173	}
1450		2174
1451	sub do_load_sync {	2175	sub do_load_sync {
1452	my ($map) = @_;	2176	my ($map) = @_;
1453		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1454	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1455	}	2182	}
1456		2183
1457	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1458	our $MAP_PREFETCHER = undef;	2185	our $MAP_PREFETCHER = undef;
1459		2186
1460	sub find_async {	2187	sub find_async {
1461	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1462		2189
1463	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1464		2191
1465	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1467	}	2194	}
1468		2195
1469	undef $MAP_PREFETCH{$path};	2196	$MAP_PREFETCH{$path} |= $load;
		2197
1470	$MAP_PREFETCHER ||= cf::async {	2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
1471	while (%MAP_PREFETCH) {	2201	while (%MAP_PREFETCH) {
1472	for my $path (keys %MAP_PREFETCH) {	2202	while (my ($k, $v) = each %MAP_PREFETCH) {
1473	my $map = find $path	2203	if (my $map = find $k) {
1474	or next;
1475	$map->load;	2204	$map->load if $v;
		2205	}
1476		2206
1477	delete $MAP_PREFETCH{$path};	2207	delete $MAP_PREFETCH{$k};
1478	}	2208	}
1479	}	2209	}
1480	undef $MAP_PREFETCHER;	2210	undef $MAP_PREFETCHER;
1481	};	2211	};
		2212	$MAP_PREFETCHER->prio (6);
1482		2213
1483	()	2214	()
1484	}	2215	}
1485		2216
		2217	# common code, used by both ->save and ->swapout
1486	sub save {	2218	sub _save {
1487	my ($self) = @_;	2219	my ($self) = @_;
1488
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
1490		2220
1491	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1492		2222
1493	return unless $self->dirty;	2223	return unless $self->dirty;
1494		2224
…		…
1500	return if $self->{deny_save};	2230	return if $self->{deny_save};
1501		2231
1502	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1503		2233
1504	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1505	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1506	};	2237	};
		2238
		2239	cf::get_slot 0.02;
1507		2240
1508	if ($uniq) {	2241	if ($uniq) {
1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2244	} else {
1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2246	}
1514	}	2247	}
1515		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
1516	sub swap_out {	2257	sub swap_out {
1517	my ($self) = @_;	2258	my ($self) = @_;
1518		2259
1519	# save first because save cedes
1520	$self->save;
1521
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
1524	return if $self->players;	2264	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};
1527		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
1528	$self->clear;	2275	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2276	}
1531		2277
1532	sub reset_at {	2278	sub reset_at {
1533	my ($self) = @_;	2279	my ($self) = @_;
1534		2280
1535	# TODO: safety, remove and allow resettable per-player maps	2281	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
1537	return 1e99 if $self->{deny_reset};	2282	return 1e99 if $self->{deny_reset};
1538		2283
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2286
…		…
1552	my ($self) = @_;	2297	my ($self) = @_;
1553		2298
1554	my $lock = cf::lock_acquire "map_data:$self->{path}";	2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
1555		2300
1556	return if $self->players;	2301	return if $self->players;
1557	return if $self->isa ("ext::map_per_player");#d#
1558		2302
1559	warn "resetting map ", $self->path;#d#	2303	warn "resetting map ", $self->path, "\n";
		2304
		2305	$self->in_memory (cf::MAP_SWAPPED);
		2306
		2307	# need to save uniques path
		2308	unless ($self->{deny_save}) {
		2309	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2310
		2311	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2312	if $uniq;
		2313	}
1560		2314
1561	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1562		2316
1563	$self->in_memory (cf::MAP_SWAPPED);	2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
1564	$self->clear;	2319	$self->clear;
1565
1566	$_->clear_links_to ($self) for values %cf::MAP;
1567		2320
1568	$self->unlink_save;	2321	$self->unlink_save;
1569	$self->destroy;	2322	$self->destroy;
1570	}	2323	}
1571		2324
1572	my $nuke_counter = "aaaa";	2325	my $nuke_counter = "aaaa";
1573		2326
1574	sub nuke {	2327	sub nuke {
1575	my ($self) = @_;	2328	my ($self) = @_;
1576		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
1577	delete $cf::MAP{$self->path};	2333	delete $cf::MAP{$self->path};
1578		2334
1579	$self->unlink_save;	2335	$self->unlink_save;
1580		2336
1581	bless $self, "cf::map";	2337	bless $self, "cf::map";
1582	delete $self->{deny_reset};	2338	delete $self->{deny_reset};
1583	$self->{deny_save} = 1;	2339	$self->{deny_save} = 1;
1584	$self->reset_timeout (1);	2340	$self->reset_timeout (1);
1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1586		2342
1587	$cf::MAP{$self->path} = $self;	2343	$cf::MAP{$self->path} = $self;
		2344	}
1588		2345
1589	$self->reset; # polite request, might not happen	2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
1590	}	2383	}
1591		2384
1592	=item cf::map::unique_maps	2385	=item cf::map::unique_maps
1593		2386
1594	Returns an arrayref of paths of all shared maps that have	2387	Returns an arrayref of paths of all shared maps that have
1595	instantiated unique items. May block.	2388	instantiated unique items. May block.
1596		2389
1597	=cut	2390	=cut
1598		2391
1599	sub unique_maps() {	2392	sub unique_maps() {
1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2393	[
1601	or return;	2394	map {
1602
1603	my @paths;
1604
1605	for (@$files) {
1606	utf8::decode $_;	2395	utf8::decode $_;
1607	next if /\.pst$/;	2396	s/\.map$//; # TODO future compatibility hack
1608	next unless /^$PATH_SEP/o;	2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2398	? ()
		2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
		2401	]
		2402	}
1609		2403
		2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
1610	s/\.map$//;	2425	s/\.map$// or next;
1611	push @paths, $_;	2426	utf8::decode $_;
1612	}	2427	push @maps, "$dir/$_";
		2428	}
1613		2429
1614	\@paths	2430	push @dirs, map "$dir/$_", @$dirs;
1615	}	2431	}
1616		2432
1617	package cf;	2433	\@maps
		2434	}
1618		2435
1619	=back	2436	=back
1620		2437
1621	=head3 cf::object	2438	=head3 cf::object
1622		2439
…		…
1626		2443
1627	=over 4	2444	=over 4
1628		2445
1629	=item $ob->inv_recursive	2446	=item $ob->inv_recursive
1630		2447
1631	Returns the inventory of the object _and_ their inventories, recursively.	2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
1632		2450
1633	=cut	2451	=cut
1634		2452
1635	sub inv_recursive_;	2453	sub inv_recursive_;
1636	sub inv_recursive_ {	2454	sub inv_recursive_ {
…		…
1639		2457
1640	sub inv_recursive {	2458	sub inv_recursive {
1641	inv_recursive_ inv $_[0]	2459	inv_recursive_ inv $_[0]
1642	}	2460	}
1643		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
1644	package cf;	2490	package cf;
1645		2491
1646	=back	2492	=back
1647		2493
1648	=head3 cf::object::player	2494	=head3 cf::object::player
…		…
1654	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1655	can be C<undef>. Does the right thing when the player is currently in a	2501	can be C<undef>. Does the right thing when the player is currently in a
1656	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
1657		2503
1658	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
1659		2519
1660	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
1661	# with dialog boxes.	2521	# with dialog boxes.
1662	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
1663	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
1665		2525
1666	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1667		2527
1668	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
1669	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
1670	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
1671	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
1672	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
1673	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
1674	}	2553	}
1675		2554
1676	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
1677		2556
1678	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
1691		2570
1692	=item $player_object->enter_link	2571	=item $player_object->enter_link
1693		2572
1694	Freezes the player and moves him/her to a special map (C<{link}>).	2573	Freezes the player and moves him/her to a special map (C<{link}>).
1695		2574
1696	The player should be reasonably safe there for short amounts of time. You	2575	The player should be reasonably safe there for short amounts of time (e.g.
1697	I<MUST> call C<leave_link> as soon as possible, though.	2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
1698		2579
1699	Will never block.	2580	Will never block.
1700		2581
1701	=item $player_object->leave_link ($map, $x, $y)	2582	=item $player_object->leave_link ($map, $x, $y)
1702		2583
…		…
1710	=cut	2591	=cut
1711		2592
1712	sub link_map {	2593	sub link_map {
1713	unless ($LINK_MAP) {	2594	unless ($LINK_MAP) {
1714	$LINK_MAP = cf::map::find "{link}"	2595	$LINK_MAP = cf::map::find "{link}"
1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2596	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1716	$LINK_MAP->load;	2597	$LINK_MAP->load;
1717	}	2598	}
1718		2599
1719	$LINK_MAP	2600	$LINK_MAP
1720	}	2601	}
…		…
1725	$self->deactivate_recursive;	2606	$self->deactivate_recursive;
1726		2607
1727	return if UNIVERSAL::isa $self->map, "ext::map_link";	2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
1728		2609
1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1730	if $self->map;	2611	if $self->map && $self->map->{path} ne "{link}";
1731		2612
1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1733	}	2614	}
1734		2615
1735	sub cf::object::player::leave_link {	2616	sub cf::object::player::leave_link {
1736	my ($self, $map, $x, $y) = @_;	2617	my ($self, $map, $x, $y) = @_;
		2618
		2619	return unless $self->contr->active;
1737		2620
1738	my $link_pos = delete $self->{_link_pos};	2621	my $link_pos = delete $self->{_link_pos};
1739		2622
1740	unless ($map) {	2623	unless ($map) {
1741	# restore original map position	2624	# restore original map position
…		…
1752	($x, $y) = (-1, -1)	2635	($x, $y) = (-1, -1)
1753	unless (defined $x) && (defined $y);	2636	unless (defined $x) && (defined $y);
1754		2637
1755	# use -1 or undef as default coordinates, not 0, 0	2638	# use -1 or undef as default coordinates, not 0, 0
1756	($x, $y) = ($map->enter_x, $map->enter_y)	2639	($x, $y) = ($map->enter_x, $map->enter_y)
1757	if $x <=0 && $y <= 0;	2640	if $x <= 0 && $y <= 0;
1758		2641
1759	$map->load;	2642	$map->load;
1760	$map->load_diag;	2643	$map->load_neighbours;
1761		2644
1762	return unless $self->contr->active;	2645	return unless $self->contr->active;
		2646
		2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2648	$self->enter_map ($map, $x, $y);
		2649
		2650	# only activate afterwards, to support waiting in hooks
1763	$self->activate_recursive;	2651	$self->activate_recursive;
1764	$self->enter_map ($map, $x, $y);
1765	}	2652	}
1766		2653
1767	cf::player->attach (	2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1768	on_logout => sub {
1769	my ($pl) = @_;
1770		2655
1771	# abort map switching before logout	2656	Moves the player to the given map-path and coordinates by first freezing
1772	if ($pl->ob->{_link_pos}) {	2657	her, loading and preparing them map, calling the provided $check callback
1773	cf::sync_job {	2658	that has to return the map if sucecssful, and then unfreezes the player on
1774	$pl->ob->leave_link	2659	the new (success) or old (failed) map position. In either case, $done will
1775	};	2660	be called at the end of this process.
1776	}
1777	},
1778	on_login => sub {
1779	my ($pl) = @_;
1780		2661
1781	# try to abort aborted map switching on player login :)	2662	Note that $check will be called with a potentially non-loaded map, so if
1782	# should happen only on crashes	2663	it needs a loaded map it has to call C<< ->load >>.
1783	if ($pl->ob->{_link_pos}) {
1784	$pl->ob->enter_link;
1785	(async {
1786	# we need this sleep as the login has a concurrent enter_exit running
1787	# and this sleep increases chances of the player not ending up in scorn
1788	$pl->ob->reply (undef,
1789	"There was an internal problem at your last logout, "
1790	. "the server will try to bring you to your intended destination in a second.",
1791	cf::NDI_RED);
1792	Coro::Timer::sleep 1;
1793	$pl->ob->leave_link;
1794	})->prio (2);
1795	}
1796	},
1797	);
1798		2664
1799	=item $player_object->goto ($path, $x, $y)
1800
1801	=cut	2665	=cut
		2666
		2667	our $GOTOGEN;
1802		2668
1803	sub cf::object::player::goto {	2669	sub cf::object::player::goto {
1804	my ($self, $path, $x, $y) = @_;	2670	my ($self, $path, $x, $y, $check, $done) = @_;
		2671
		2672	# do generation counting so two concurrent goto's will be executed in-order
		2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1805		2674
1806	$self->enter_link;	2675	$self->enter_link;
1807		2676
1808	(async {	2677	(async {
1809	my $map = cf::map::find $path;	2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
		2699	my $map = eval {
		2700	my $map = defined $path ? cf::map::find $path : undef;
		2701
		2702	if ($map) {
1810	$map = $map->customise_for ($self) if $map;	2703	$map = $map->customise_for ($self);
1811		2704	$map = $check->($map) if $check && $map;
1812	# warn "entering ", $map->path, " at ($x, $y)\n"	2705	} else {
1813	# if $map;
1814
1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2707	}
1816		2708
		2709	$map
		2710	};
		2711
		2712	if ($@) {
		2713	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	LOG llevError | logBacktrace, Carp::longmess $@;
		2715	}
		2716
		2717	if ($gen == $self->{_goto_generation}) {
		2718	delete $self->{_goto_generation};
1817	$self->leave_link ($map, $x, $y);	2719	$self->leave_link ($map, $x, $y);
		2720	}
		2721
		2722	$done->() if $done;
1818	})->prio (1);	2723	})->prio (1);
1819	}	2724	}
1820		2725
1821	=item $player_object->enter_exit ($exit_object)	2726	=item $player_object->enter_exit ($exit_object)
1822		2727
…		…
1842	}	2747	}
1843		2748
1844	sub prepare_random_map {	2749	sub prepare_random_map {
1845	my ($exit) = @_;	2750	my ($exit) = @_;
1846		2751
1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
1848
1849	# all this does is basically replace the /! path by	2752	# all this does is basically replace the /! path by
1850	# a new random map path (?random/...) with a seed	2753	# a new random map path (?random/...) with a seed
1851	# that depends on the exit object	2754	# that depends on the exit object
1852		2755
1853	my $rmp = parse_random_map_params $exit->msg;	2756	my $rmp = parse_random_map_params $exit->msg;
1854		2757
1855	if ($exit->map) {	2758	if ($exit->map) {
1856	$rmp->{region} = $exit->map->region_name;	2759	$rmp->{region} = $exit->region->name;
1857	$rmp->{origin_map} = $exit->map->path;	2760	$rmp->{origin_map} = $exit->map->path;
1858	$rmp->{origin_x} = $exit->x;	2761	$rmp->{origin_x} = $exit->x;
1859	$rmp->{origin_y} = $exit->y;	2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
1860	}	2765	}
1861		2766
1862	$rmp->{random_seed} ||= $exit->random_seed;	2767	$rmp->{random_seed} ||= $exit->random_seed;
1863		2768
1864	my $data = cf::to_json $rmp;	2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1865	my $md5 = Digest::MD5::md5_hex $data;	2770	my $md5 = Digest::MD5::md5_hex $data;
1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2771	my $meta = "$RANDOMDIR/$md5.meta";
1867		2772
1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1869	aio_write $fh, 0, (length $data), $data, 0;	2774	aio_write $fh, 0, (length $data), $data, 0;
1870	undef $fh;	2775	undef $fh;
1871	aio_rename "$meta~", $meta;	2776	aio_rename "$meta~", $meta;
1872		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
1873	$exit->slaying ("?random/$md5");	2781	$exit->slaying ("?random/$md5");
1874	$exit->msg (undef);	2782	$exit->msg (undef);
		2783	}
1875	}	2784	}
1876	}	2785	}
1877		2786
1878	sub cf::object::player::enter_exit {	2787	sub cf::object::player::enter_exit {
1879	my ($self, $exit) = @_;	2788	my ($self, $exit) = @_;
…		…
1881	return unless $self->type == cf::PLAYER;	2790	return unless $self->type == cf::PLAYER;
1882		2791
1883	$self->enter_link;	2792	$self->enter_link;
1884		2793
1885	(async {	2794	(async {
1886	$self->deactivate_recursive; # just to be sure	2795	$Coro::current->{desc} = "enter_exit";
		2796
1887	unless (eval {	2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
1888	prepare_random_map $exit	2804	prepare_random_map $exit
1889	if $exit->slaying eq "/!";	2805	if $exit->slaying eq "/!";
		2806	}
1890		2807
1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
1893		2811
		2812	$self->goto ($map, $x, $y);
		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
1894	1;	2818	1
1895	}) {	2819	}) {
1896	$self->message ("Something went wrong deep within the crossfire server. "	2820	$self->message ("Something went wrong deep within the deliantra server. "
1897	. "I'll try to bring you back to the map you were before. "	2821	. "I'll try to bring you back to the map you were before. "
1898	. "Please report this to the dungeon master!",	2822	. "Please report this to the dungeon master!",
1899	cf::NDI_UNIQUE | cf::NDI_RED);	2823	cf::NDI_UNIQUE | cf::NDI_RED);
1900		2824
1901	warn "ERROR in enter_exit: $@";	2825	warn "ERROR in enter_exit: $@";
1902	$self->leave_link;	2826	$self->leave_link;
1903	}	2827	}
1904	})->prio (1);	2828	})->prio (1);
…		…
1917		2841
1918	sub cf::client::send_drawinfo {	2842	sub cf::client::send_drawinfo {
1919	my ($self, $text, $flags) = @_;	2843	my ($self, $text, $flags) = @_;
1920		2844
1921	utf8::encode $text;	2845	utf8::encode $text;
1922	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1923	}	2847	}
1924		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
		3036	=item $client->ext_msg ($type, @msg)
		3037
		3038	Sends an ext event to the client.
		3039
		3040	=cut
		3041
		3042	sub cf::client::ext_msg($$@) {
		3043	my ($self, $type, @msg) = @_;
		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
		3048	push @msg, msgtype => "event_$type";
		3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
		3069	}
1925		3070
1926	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
1927		3072
1928	Queues a query to the client, calling the given callback with	3073	Queues a query to the client, calling the given callback with
1929	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1931		3076
1932	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
1933	reliable at some point in the future.	3078	become reliable at some point in the future.
1934		3079
1935	=cut	3080	=cut
1936		3081
1937	sub cf::client::query {	3082	sub cf::client::query {
1938	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
1946	utf8::encode $text;	3091	utf8::encode $text;
1947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1948		3093
1949	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
1950	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
1951	}	3098	}
1952		3099
1953	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
1954	on_reply => sub {	3106	on_reply => sub {
1955	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
1956		3108
1957	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
1958	# get handled first	3110	# get handled first
1959	my $queue = delete $ns->{query_queue}	3111	my $queue = delete $ns->{query_queue}
1960	or return; # be conservative, not sure how that can happen, but we saw a crash here	3112	or return; # be conservative, not sure how that can happen, but we saw a crash here
1961		3113
1962	(shift @$queue)->[1]->($msg);	3114	(shift @$queue)->[1]->($msg);
		3115	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1963		3116
1964	push @{ $ns->{query_queue} }, @$queue;	3117	push @{ $ns->{query_queue} }, @$queue;
1965		3118
1966	if (@{ $ns->{query_queue} } == @$queue) {	3119	if (@{ $ns->{query_queue} } == @$queue) {
1967	if (@$queue) {	3120	if (@$queue) {
…		…
1969	} else {	3122	} else {
1970	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1971	}	3124	}
1972	}	3125	}
1973	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
1974	);	3153	);
1975		3154
1976	=item $client->async (\&cb)	3155	=item $client->async (\&cb)
1977		3156
1978	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
…		…
1994		3173
1995	$coro	3174	$coro
1996	}	3175	}
1997		3176
1998	cf::client->attach (	3177	cf::client->attach (
1999	on_destroy => sub {	3178	on_client_destroy => sub {
2000	my ($ns) = @_;	3179	my ($ns) = @_;
2001		3180
2002	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2003	},	3182	},
2004	);	3183	);
…		…
2019	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
2020	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
2021		3200
2022	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
2023		3202
2024	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
2025		3208
2026	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
2027		3210
2028	=pod	3211	=pod
2029		3212
2030	The following fucntions and emthods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
2031		3214
2032	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
2033	cf::object::player player	3220	cf::object::player
2034	cf::player peaceful	3221	player
2035	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
2036		3228
2037	=cut	3229	=cut
2038		3230
2039	for (	3231	for (
2040	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
2041	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
2042	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
2043	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
2044	) {	3238	) {
2045	no strict 'refs';	3239	no strict 'refs';
2046	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
2047	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2065		3259
2066	my $qcode = $code;	3260	my $qcode = $code;
2067	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2068	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
2069		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
2070	local $_;	3267	local $_;
2071	local @safe::cf::_safe_eval_args = values %vars;
2072		3268
2073	my $eval =	3269	my $eval =
2074	"do {\n"	3270	"do {\n"
2075	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2076	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
2077	. $code	3273	. $code
2078	. "\n}"	3274	. "\n}"
2079	;	3275	;
2080		3276
		3277	if ($CFG{safe_eval}) {
2081	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
2082	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2083	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
2084		3286
2085	if ($@) {	3287	if ($@) {
2086	warn "$@";	3288	warn "$@";
2087	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
2088	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2107	=cut	3309	=cut
2108		3310
2109	sub register_script_function {	3311	sub register_script_function {
2110	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
2111		3313
2112	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
2113	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
2114	}	3316	}
2115		3317
2116	=back	3318	=back
2117		3319
2118	=cut	3320	=cut
2119		3321
2120	#############################################################################	3322	#############################################################################
		3323	# the server's init and main functions
2121		3324
2122	=head2 EXTENSION DATABASE SUPPORT	3325	sub load_facedata($) {
		3326	my ($path) = @_;
2123		3327
2124	Crossfire maintains a very simple database for extension use. It can	3328	# HACK to clear player env face cache, we need some signal framework
2125	currently store anything that can be serialised using Storable, which	3329	# for this (global event?)
2126	excludes objects.	3330	%ext::player_env::MUSIC_FACE_CACHE = ();
2127		3331
2128	The parameter C<$family> should best start with the name of the extension	3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2129	using it, it should be unique.
2130		3333
2131	=over 4	3334	warn "loading facedata from $path\n";
2132		3335
2133	=item $hashref = cf::db_get $family	3336	my $facedata;
		3337	0 < aio_load $path, $facedata
		3338	or die "$path: $!";
2134		3339
2135	Return a hashref for use by the extension C<$family>, which can be	3340	$facedata = Coro::Storable::thaw $facedata;
2136	modified. After modifications, you have to call C<cf::db_dirty> or
2137	C<cf::db_sync>.
2138		3341
2139	=item $value = cf::db_get $family => $key	3342	$facedata->{version} == 2
		3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
2140		3344
2141	Returns a single value from the database	3345	# patch in the exptable
2142		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2143	=item cf::db_put $family => $hashref	3347	$facedata->{resource}{"res/exp_table"} = {
2144		3348	type => FT_RSRC,
2145	Stores the given family hashref into the database. Updates are delayed, if	3349	data => $exp_table,
2146	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3350	hash => (Digest::MD5::md5 $exp_table),
2147
2148	=item cf::db_put $family => $key => $value
2149
2150	Stores the given C<$value> in the family hash. Updates are delayed, if you
2151	want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_dirty
2154
2155	Marks the database as dirty, to be updated at a later time.
2156
2157	=item cf::db_sync
2158
2159	Immediately write the database to disk I<if it is dirty>.
2160
2161	=cut
2162
2163	our $DB;
2164
2165	{
2166	my $path = cf::localdir . "/database.pst";
2167
2168	sub db_load() {
2169	$DB = stat $path ? Storable::retrieve $path : { };
2170	}
2171
2172	my $pid;
2173
2174	sub db_save() {
2175	waitpid $pid, 0 if $pid;
2176	if (0 == ($pid = fork)) {
2177	$DB->{_meta}{version} = 1;
2178	Storable::nstore $DB, "$path~";
2179	rename "$path~", $path;
2180	cf::_exit 0 if defined $pid;
2181	}
2182	}
2183
2184	my $dirty;
2185
2186	sub db_sync() {
2187	db_save if $dirty;
2188	undef $dirty;
2189	}
2190
2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2192	db_sync;
2193	});	3351	};
		3352	cf::cede_to_tick;
2194		3353
2195	sub db_dirty() {
2196	$dirty = 1;
2197	$idle->start;
2198	}	3354	{
		3355	my $faces = $facedata->{faceinfo};
2199		3356
2200	sub db_get($;$) {	3357	while (my ($face, $info) = each %$faces) {
2201	@_ >= 2	3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2202	? $DB->{$_[0]}{$_[1]}
2203	: ($DB->{$_[0]} ||= { })
2204	}
2205		3359
2206	sub db_put($$;$) {	3360	cf::face::set_visibility $idx, $info->{visibility};
2207	if (@_ >= 3) {	3361	cf::face::set_magicmap $idx, $info->{magicmap};
2208	$DB->{$_[0]}{$_[1]} = $_[2];	3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2209	} else {	3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2210	$DB->{$_[0]} = $_[1];
2211	}
2212	db_dirty;
2213	}
2214		3364
2215	cf::global->attach (	3365	cf::cede_to_tick;
2216	prio => 10000,
2217	on_cleanup => sub {
2218	db_sync;
2219	},	3366	}
2220	);
2221	}
2222		3367
2223	#############################################################################	3368	while (my ($face, $info) = each %$faces) {
2224	# the server's main()	3369	next unless $info->{smooth};
2225		3370
2226	sub cfg_load {	3371	my $idx = cf::face::find $face
		3372	or next;
		3373
		3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
		3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3377	} else {
		3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3379	}
		3380
		3381	cf::cede_to_tick;
		3382	}
		3383	}
		3384
		3385	{
		3386	my $anims = $facedata->{animinfo};
		3387
		3388	while (my ($anim, $info) = each %$anims) {
		3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3390	cf::cede_to_tick;
		3391	}
		3392
		3393	cf::anim::invalidate_all; # d'oh
		3394	}
		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
		3415	1
		3416	}
		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
		3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
		3461	load_resource_file "$MAPDIR/regions"
		3462	or die "unable to load regions file\n";
		3463
		3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
		3468	}
		3469
		3470	sub reload_facedata {
		3471	load_facedata "$DATADIR/facedata"
		3472	or die "unable to load facedata\n";
		3473	}
		3474
		3475	sub reload_archetypes {
		3476	load_resource_file "$DATADIR/archetypes"
		3477	or die "unable to load archetypes\n";
		3478	}
		3479
		3480	sub reload_treasures {
		3481	load_resource_file "$DATADIR/treasures"
		3482	or die "unable to load treasurelists\n";
		3483	}
		3484
		3485	sub reload_resources {
		3486	warn "reloading resource files...\n";
		3487
		3488	reload_facedata;
		3489	reload_archetypes;
		3490	reload_regions;
		3491	reload_treasures;
		3492
		3493	warn "finished reloading resource files\n";
		3494	}
		3495
		3496	sub reload_config {
		3497	warn "reloading config file...\n";
		3498
2227	open my $fh, "<:utf8", cf::confdir . "/config"	3499	open my $fh, "<:utf8", "$CONFDIR/config"
2228	or return;	3500	or return;
2229		3501
2230	local $/;	3502	local $/;
2231	*CFG = YAML::Syck::Load <$fh>;	3503	*CFG = YAML::XS::Load scalar <$fh>;
2232		3504
2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2234		3506
2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2241	and die "WARNING: m(un)lockall failed: $!\n";	3513	and die "WARNING: m(un)lockall failed: $!\n";
2242	};	3514	};
2243	warn $@ if $@;	3515	warn $@ if $@;
2244	}	3516	}
		3517
		3518	warn "finished reloading resource files\n";
		3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
2245	}	3547	}
2246		3548
2247	sub main {	3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
2248	# we must not ever block the main coroutine	3559	# we must not ever block the main coroutine
2249	local $Coro::idle = sub {	3560	local $Coro::idle = sub {
2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2251	(async {	3562	(async {
2252	Event::one_event;	3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
2253	})->prio (Coro::PRIO_MAX);	3565	})->prio (Coro::PRIO_MAX);
2254	};	3566	};
2255		3567
2256	cfg_load;	3568	evthread_start IO::AIO::poll_fileno;
2257	db_load;	3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
		3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
2258	load_extensions;	3591	load_extensions;
2259		3592
2260	$TICK_WATCHER->start;	3593	utime time, time, $RUNTIMEFILE;
2261	Event::loop;	3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
2262	}	3606	}
2263		3607
2264	#############################################################################	3608	#############################################################################
2265	# initialisation and cleanup	3609	# initialisation and cleanup
2266		3610
2267	# install some emergency cleanup handlers	3611	# install some emergency cleanup handlers
2268	BEGIN {	3612	BEGIN {
		3613	our %SIGWATCHER = ();
2269	for my $signal (qw(INT HUP TERM)) {	3614	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2271	data => WF_AUTOCANCEL,
2272	signal => $signal,
2273	cb => sub {
2274	cf::cleanup "SIG$signal";	3616	cf::cleanup "SIG$signal";
2275	},
2276	);	3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3632	or return;
		3633
		3634	my $value = $cf::RUNTIME + 90 + 10;
		3635	# 10 is the runtime save interval, for a monotonic clock
		3636	# 60 allows for the watchdog to kill the server.
		3637
		3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3639	and return;
		3640
		3641	# always fsync - this file is important
		3642	aio_fsync $fh
		3643	and return;
		3644
		3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
2277	}	3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
2278	}	3707	}
2279		3708
2280	sub emergency_save() {	3709	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3710	my $freeze_guard = cf::freeze_mainloop;
2282		3711
2283	warn "enter emergency perl save\n";	3712	warn "emergency_perl_save: enter\n";
2284		3713
2285	cf::sync_job {	3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
2286	# use a peculiar iteration method to avoid tripping on perl	3720	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3721	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/destroyed asynchronously.	3722	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3723	warn "emergency_perl_save: begin player save\n";
2290	for my $login (keys %cf::PLAYER) {	3724	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3725	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	3728	$pl->save;
2294	}	3729	}
2295	warn "end emergency player save\n";	3730	warn "emergency_perl_save: end player save\n";
2296		3731
2297	warn "begin emergency map save\n";	3732	warn "emergency_perl_save: begin map save\n";
2298	for my $path (keys %cf::MAP) {	3733	for my $path (keys %cf::MAP) {
2299	my $map = $cf::MAP{$path} or next;	3734	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3735	$map->valid or next;
2301	$map->save;	3736	$map->save;
2302	}	3737	}
2303	warn "end emergency map save\n";	3738	warn "emergency_perl_save: end map save\n";
		3739
		3740	warn "emergency_perl_save: begin database checkpoint\n";
		3741	BDB::db_env_txn_checkpoint $DB_ENV;
		3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
2304	};	3747	};
2305		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
2306	warn "leave emergency perl save\n";	3754	warn "emergency_perl_save: leave\n";
2307	}	3755	}
2308		3756
		3757	sub post_cleanup {
		3758	my ($make_core) = @_;
		3759
		3760	warn Carp::longmess "post_cleanup backtrace"
		3761	if $make_core;
		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
		3790	warn "cleared package $pkg\n";#d#
		3791	}
		3792
2309	sub reload() {	3793	sub do_reload_perl() {
2310	# can/must only be called in main	3794	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3795	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine";	3796	warn "can only reload from main coroutine";
2313	return;	3797	return;
2314	}	3798	}
2315		3799
		3800	return if $RELOAD++;
		3801
		3802	my $t1 = AE::time;
		3803
		3804	while ($RELOAD) {
2316	warn "reloading...";	3805	warn "reloading...";
2317		3806
2318	warn "cancelling server ticker";	3807	warn "entering sync_job";
2319	$TICK_WATCHER->cancel;
2320		3808
		3809	cf::sync_job {
		3810	cf::write_runtime_sync; # external watchdog should not bark
2321	cf::emergency_save;	3811	cf::emergency_save;
		3812	cf::write_runtime_sync; # external watchdog should not bark
2322		3813
2323	eval {	3814	warn "syncing database to disk";
		3815	BDB::db_env_txn_checkpoint $DB_ENV;
		3816
2324	# if anything goes wrong in here, we should simply crash as we already saved	3817	# if anything goes wrong in here, we should simply crash as we already saved
2325		3818
2326	warn "syncing database to disk";
2327	cf::db_sync;
2328
2329	warn "cancelling all WF_AUTOCANCEL watchers";
2330	for (Event::all_watchers) {
2331	$_->cancel if $_->data & WF_AUTOCANCEL;
2332	}
2333
2334	warn "flushing outstanding aio requests";	3819	warn "flushing outstanding aio requests";
2335	for (;;) {	3820	while (IO::AIO::nreqs || BDB::nreqs) {
2336	IO::AIO::flush;	3821	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2337	Coro::cede;
2338	last unless IO::AIO::nreqs;
2339	warn "iterate...";
2340	}
2341
2342	warn "cancelling all extension coros";
2343	$_->cancel for values %EXT_CORO;
2344	%EXT_CORO = ();
2345
2346	warn "removing commands";
2347	%COMMAND = ();
2348
2349	warn "removing ext commands";
2350	%EXTCMD = ();
2351
2352	warn "unloading/nuking all extensions";
2353	for my $pkg (@EXTS) {
2354	warn "... unloading $pkg";
2355
2356	if (my $cb = $pkg->can ("unload")) {
2357	eval {
2358	$cb->($pkg);
2359	1
2360	} or warn "$pkg unloaded, but with errors: $@";
2361	}	3822	}
2362		3823
2363	warn "... nuking $pkg";	3824	warn "cancelling all extension coros";
2364	Symbol::delete_package $pkg;	3825	$_->cancel for values %EXT_CORO;
2365	}	3826	%EXT_CORO = ();
2366		3827
2367	warn "unloading all perl modules loaded from $LIBDIR";	3828	warn "removing commands";
2368	while (my ($k, $v) = each %INC) {	3829	%COMMAND = ();
2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2370		3830
		3831	warn "removing ext/exti commands";
		3832	%EXTCMD = ();
		3833	%EXTICMD = ();
		3834
		3835	warn "unloading/nuking all extensions";
		3836	for my $pkg (@EXTS) {
2371	warn "... unloading $k";	3837	warn "... unloading $pkg";
2372	delete $INC{$k};
2373		3838
2374	$k =~ s/\.pm$//;
2375	$k =~ s/\//::/g;
2376
2377	if (my $cb = $k->can ("unload_module")) {	3839	if (my $cb = $pkg->can ("unload")) {
		3840	eval {
2378	$cb->();	3841	$cb->($pkg);
		3842	1
		3843	} or warn "$pkg unloaded, but with errors: $@";
		3844	}
		3845
		3846	warn "... clearing $pkg";
		3847	clear_package $pkg;
2379	}	3848	}
2380		3849
2381	Symbol::delete_package $k;	3850	warn "unloading all perl modules loaded from $LIBDIR";
		3851	while (my ($k, $v) = each %INC) {
		3852	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3853
		3854	warn "... unloading $k";
		3855	delete $INC{$k};
		3856
		3857	$k =~ s/\.pm$//;
		3858	$k =~ s/\//::/g;
		3859
		3860	if (my $cb = $k->can ("unload_module")) {
		3861	$cb->();
		3862	}
		3863
		3864	clear_package $k;
2382	}	3865	}
2383		3866
2384	warn "getting rid of safe::, as good as possible";	3867	warn "getting rid of safe::, as good as possible";
2385	Symbol::delete_package "safe::$_"	3868	clear_package "safe::$_"
2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3869	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2387		3870
2388	warn "unloading cf.pm \"a bit\"";	3871	warn "unloading cf.pm \"a bit\"";
2389	delete $INC{"cf.pm"};	3872	delete $INC{"cf.pm"};
		3873	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2390		3874
2391	# don't, removes xs symbols, too,	3875	# don't, removes xs symbols, too,
2392	# and global variables created in xs	3876	# and global variables created in xs
2393	#Symbol::delete_package __PACKAGE__;	3877	#clear_package __PACKAGE__;
2394		3878
2395	warn "unload completed, starting to reload now";	3879	warn "unload completed, starting to reload now";
2396		3880
2397	warn "reloading cf.pm";	3881	warn "reloading cf.pm";
2398	require cf;	3882	require cf;
2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3883	cf::_connect_to_perl_1;
2400		3884
2401	warn "loading config and database again";	3885	warn "loading config and database again";
2402	cf::cfg_load;	3886	cf::reload_config;
2403	cf::db_load;
2404		3887
2405	warn "loading extensions";	3888	warn "loading extensions";
2406	cf::load_extensions;	3889	cf::load_extensions;
2407		3890
		3891	if ($REATTACH_ON_RELOAD) {
2408	warn "reattaching attachments to objects/players";	3892	warn "reattaching attachments to objects/players";
2409	_global_reattach;	3893	_global_reattach; # objects, sockets
2410	warn "reattaching attachments to maps";	3894	warn "reattaching attachments to maps";
2411	reattach $_ for values %MAP;	3895	reattach $_ for values %MAP;
		3896	warn "reattaching attachments to players";
		3897	reattach $_ for values %PLAYER;
		3898	}
2412		3899
2413	warn "restarting server ticker";	3900	warn "running post_init jobs";
		3901	(pop @POST_INIT)->(1) while @POST_INIT;
2414		3902
2415	$TICK_WATCHER->start;	3903	warn "leaving sync_job";
		3904
		3905	1
		3906	} or do {
		3907	warn $@;
		3908	cf::cleanup "error while reloading, exiting.";
		3909	};
		3910
		3911	warn "reloaded";
		3912	--$RELOAD;
		3913	}
		3914
		3915	$t1 = AE::time - $t1;
		3916	warn "reload completed in ${t1}s\n";
		3917	};
		3918
		3919	our $RELOAD_WATCHER; # used only during reload
		3920
		3921	sub reload_perl() {
		3922	# doing reload synchronously and two reloads happen back-to-back,
		3923	# coro crashes during coro_state_free->destroy here.
		3924
		3925	$RELOAD_WATCHER ||= cf::async {
		3926	Coro::AIO::aio_wait cache_extensions;
		3927
		3928	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3929	do_reload_perl;
		3930	undef $RELOAD_WATCHER;
		3931	};
2416	};	3932	};
2417		3933	}
2418	if ($@) {
2419	warn $@;
2420	warn "error while reloading, exiting.";
2421	exit 1;
2422	}
2423
2424	warn "reloaded";
2425	};
2426
2427	our $RELOAD_WATCHER; # used only during reload
2428		3934
2429	register_command "reload" => sub {	3935	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	3936	my ($who, $arg) = @_;
2431		3937
2432	if ($who->flag (FLAG_WIZ)) {	3938	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("reloading server.");	3939	$who->message ("reloading server.");
2434		3940	async {
2435	# doing reload synchronously and two reloads happen back-to-back,	3941	$Coro::current->{desc} = "perl_reload";
2436	# coro crashes during coro_state_free->destroy here.
2437
2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2439	reload;	3942	reload_perl;
2440	undef $RELOAD_WATCHER;
2441	});	3943	};
2442	}	3944	}
2443	};	3945	};
2444		3946
2445	unshift @INC, $LIBDIR;	3947	unshift @INC, $LIBDIR;
2446		3948
2447	my $bug_warning = 0;	3949	my $bug_warning = 0;
2448		3950
2449	$TICK_WATCHER = Event->timer (	3951	our @WAIT_FOR_TICK;
2450	reentrant => 0,	3952	our @WAIT_FOR_TICK_BEGIN;
2451	parked => 1,	3953
2452	prio => 0,	3954	sub wait_for_tick {
2453	at => $NEXT_TICK || $TICK,	3955	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2454	data => WF_AUTOCANCEL,	3956
2455	cb => sub {	3957	my $signal = new Coro::Signal;
		3958	push @WAIT_FOR_TICK, $signal;
		3959	$signal->wait;
		3960	}
		3961
		3962	sub wait_for_tick_begin {
		3963	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3964
		3965	my $signal = new Coro::Signal;
		3966	push @WAIT_FOR_TICK_BEGIN, $signal;
		3967	$signal->wait;
		3968	}
		3969
		3970	sub tick {
2456	if ($Coro::current != $Coro::main) {	3971	if ($Coro::current != $Coro::main) {
2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3972	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2458	unless ++$bug_warning > 10;	3973	unless ++$bug_warning > 10;
2459	return;	3974	return;
2460	}	3975	}
2461		3976
2462	$NOW = Event::time;
2463
2464	cf::server_tick; # one server iteration	3977	cf::server_tick; # one server iteration
2465	$RUNTIME += $TICK;
2466	$NEXT_TICK += $TICK;
2467		3978
2468	$WAIT_FOR_TICK->broadcast;	3979	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2470		3980
2471	# if we are delayed by four ticks or more, skip them all	3981	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3982	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2473		3983	Coro::async_pool {
2474	$TICK_WATCHER->at ($NEXT_TICK);	3984	$Coro::current->{desc} = "runtime saver";
2475	$TICK_WATCHER->start;
2476	},
2477	);
2478
2479	IO::AIO::max_poll_time $TICK * 0.2;
2480
2481	$AIO_POLL_WATCHER = Event->io (
2482	fd => IO::AIO::poll_fileno,
2483	poll => 'r',
2484	prio => 5,
2485	data => WF_AUTOCANCEL,
2486	cb => \&IO::AIO::poll_cb,
2487	);
2488
2489	$WRITE_RUNTIME_WATCHER = Event->timer (
2490	data => WF_AUTOCANCEL,
2491	after => 1,
2492	interval => 10,
2493	prio => 6, # keep it lowest so it acts like a watchdog
2494	cb => Coro::unblock_sub {
2495	write_runtime	3985	write_runtime_sync
2496	or warn "ERROR: unable to write runtime file: $!";	3986	or warn "ERROR: unable to write runtime file: $!";
		3987	};
2497	},	3988	}
2498	);	3989
		3990	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3991	$sig->send;
		3992	}
		3993	while (my $sig = shift @WAIT_FOR_TICK) {
		3994	$sig->send;
		3995	}
		3996
		3997	$LOAD = ($NOW - $TICK_START) / $TICK;
		3998	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3999
		4000	if (0) {
		4001	if ($NEXT_TICK) {
		4002	my $jitter = $TICK_START - $NEXT_TICK;
		4003	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4004	warn "jitter $JITTER\n";#d#
		4005	}
		4006	}
		4007	}
		4008
		4009	{
		4010	# configure BDB
		4011
		4012	BDB::min_parallel 16;
		4013	BDB::max_poll_reqs $TICK * 0.1;
		4014	$AnyEvent::BDB::WATCHER->priority (1);
		4015
		4016	unless ($DB_ENV) {
		4017	$DB_ENV = BDB::db_env_create;
		4018	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4019	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4020	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4021	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4022	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4023
		4024	cf::sync_job {
		4025	eval {
		4026	BDB::db_env_open
		4027	$DB_ENV,
		4028	$BDBDIR,
		4029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4031	0666;
		4032
		4033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4034	};
		4035
		4036	cf::cleanup "db_env_open(db): $@" if $@;
		4037	};
		4038	}
		4039
		4040	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4041	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4042	};
		4043	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4044	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4045	};
		4046	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4047	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4048	};
		4049	}
		4050
		4051	{
		4052	# configure IO::AIO
		4053
		4054	IO::AIO::min_parallel 8;
		4055	IO::AIO::max_poll_time $TICK * 0.1;
		4056	undef $AnyEvent::AIO::WATCHER;
		4057	}
		4058
		4059	my $_log_backtrace;
		4060
		4061	sub _log_backtrace {
		4062	my ($msg, @addr) = @_;
		4063
		4064	$msg =~ s/\n//;
		4065
		4066	# limit the # of concurrent backtraces
		4067	if ($_log_backtrace < 2) {
		4068	++$_log_backtrace;
		4069	my $perl_bt = Carp::longmess $msg;
		4070	async {
		4071	$Coro::current->{desc} = "abt $msg";
		4072
		4073	my @bt = fork_call {
		4074	@addr = map { sprintf "%x", $_ } @addr;
		4075	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4076	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4077	or die "addr2line: $!";
		4078
		4079	my @funcs;
		4080	my @res = <$fh>;
		4081	chomp for @res;
		4082	while (@res) {
		4083	my ($func, $line) = splice @res, 0, 2, ();
		4084	push @funcs, "[$func] $line";
		4085	}
		4086
		4087	@funcs
		4088	};
		4089
		4090	LOG llevInfo, "[ABT] $perl_bt\n";
		4091	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4092	LOG llevInfo, "[ABT] $_\n" for @bt;
		4093	--$_log_backtrace;
		4094	};
		4095	} else {
		4096	LOG llevInfo, "[ABT] $msg\n";
		4097	LOG llevInfo, "[ABT] [suppressed]\n";
		4098	}
		4099	}
		4100
		4101	# load additional modules
		4102	require "cf/$_.pm" for @EXTRA_MODULES;
		4103	cf::_connect_to_perl_2;
2499		4104
2500	END { cf::emergency_save }	4105	END { cf::emergency_save }
2501		4106
2502	1	4107	1
2503		4108

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