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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.457 by root, Wed Oct 1 05:50:19 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
13	use Coro 3.3 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		74
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	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		76
36	our %COMMAND = ();	77	our %COMMAND = ();
37	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
38		79
39	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
43		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	87	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		88
47	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	107	our $NEXT_TICK;
50	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
51		114
52	our %CFG;	115	our %CFG;
53		116
54	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
56		120
57	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	123	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		124
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	125	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
		135	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
64		136
65	binmode STDOUT;	137	binmode STDOUT;
66	binmode STDERR;	138	binmode STDERR;
67		139
68	# read virtual server time, if available	140	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	141	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	142	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	143	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	144	$RUNTIME = <$fh> + 0.;
73	}	145	}
74		146
75	mkdir cf::localdir;	147	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	148	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		149
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	150	our $EMERGENCY_POSITION;
		151
		152	sub cf::map::normalise;
84		153
85	#############################################################################	154	#############################################################################
86		155
87	=head2 GLOBAL VARIABLES	156	=head2 GLOBAL VARIABLES
88		157
…		…
95	=item $cf::RUNTIME	164	=item $cf::RUNTIME
96		165
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	166	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	167	every server tick.
99		168
100	=item $cf::LIBDIR	169	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		170	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		171	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		172
102	The perl library directory, where extensions and cf-specific modules can	173	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	174	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		175	unique-items directory, player file directory, random maps directory and
		176	database environment.
104		177
105	=item $cf::NOW	178	=item $cf::NOW
106		179
107	The time of the last (current) server tick.	180	The time of the last (current) server tick.
108		181
109	=item $cf::TICK	182	=item $cf::TICK
110		183
111	The interval between server ticks, in seconds.	184	The interval between server ticks, in seconds.
112		185
		186	=item $cf::LOADAVG
		187
		188	The current CPU load on the server (alpha-smoothed), as a value between 0
		189	(none) and 1 (overloaded), indicating how much time is spent on processing
		190	objects per tick. Healthy values are < 0.5.
		191
		192	=item $cf::LOAD
		193
		194	The raw value load value from the last tick.
		195
113	=item %cf::CFG	196	=item %cf::CFG
114		197
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	198	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	199	from wherever your confdir points to.
117		200
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	201	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		202
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	203	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	204	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	205	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	206
		207	=item @cf::INVOKE_RESULTS
		208
		209	This array contains the results of the last C<invoke ()> call. When
		210	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		211	that call.
124		212
125	=back	213	=back
126		214
127	=cut	215	=cut
128		216
129	BEGIN {	217	BEGIN {
130	*CORE::GLOBAL::warn = sub {	218	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	219	my $msg = join "", @_;
132	utf8::encode $msg;
133		220
134	$msg .= "\n"	221	$msg .= "\n"
135	unless $msg =~ /\n$/;	222	unless $msg =~ /\n$/;
136		223
		224	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		225
137	LOG llevError, $msg;	226	LOG llevError, $msg;
138	};	227	};
139	}	228	}
		229
		230	$Coro::State::DIEHOOK = sub {
		231	return unless $^S eq 0; # "eq", not "=="
		232
		233	if ($Coro::current == $Coro::main) {#d#
		234	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		235	return;#d#
		236	}#d#
		237
		238	# kill coroutine otherwise
		239	warn Carp::longmess $_[0];
		240	Coro::terminate
		241	};
		242
		243	$SIG{__DIE__} = sub { }; #d#?
140		244
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	245	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	246	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	247	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	248	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	249	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		250	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	251	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		252
148	# we bless all objects into (empty) derived classes to force a method lookup	253	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	254	# within the Safe compartment.
150	for my $pkg (qw(	255	for my $pkg (qw(
151	cf::global cf::attachable	256	cf::global cf::attachable
152	cf::object cf::object::player	257	cf::object cf::object::player
153	cf::client cf::player	258	cf::client cf::player
154	cf::arch cf::living	259	cf::arch cf::living
		260	cf::map cf::mapspace
155	cf::map cf::party cf::region	261	cf::party cf::region
156	)) {	262	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	263	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	264	}
160		265
161	$Event::DIED = sub {	266	$EV::DIED = sub {
162	warn "error in event callback: @_";	267	warn "error in event callback: @_";
163	};	268	};
		269
		270	#############################################################################
164		271
165	=head2 UTILITY FUNCTIONS	272	=head2 UTILITY FUNCTIONS
166		273
167	=over 4	274	=over 4
168		275
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	294	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	295	$d
189	} || "[unable to dump $_[0]: '$@']";	296	} || "[unable to dump $_[0]: '$@']";
190	}	297	}
191		298
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	299	=item $ref = cf::decode_json $json
195		300
196	Converts a JSON string into the corresponding perl data structure.	301	Converts a JSON string into the corresponding perl data structure.
197		302
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	303	=item $json = cf::encode_json $ref
206		304
207	Converts a perl data structure into its JSON representation.	305	Converts a perl data structure into its JSON representation.
208		306
209	=cut	307	=cut
210		308
211	sub to_json($) {	309	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	310
213	JSON::Syck::Dump $_[0]	311	sub encode_json($) { $json_coder->encode ($_[0]) }
		312	sub decode_json($) { $json_coder->decode ($_[0]) }
		313
		314	=item cf::post_init { BLOCK }
		315
		316	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		317	but I<before> the server starts ticking again.
		318
		319	The cdoeblock will have a single boolean argument to indicate whether this
		320	is a reload or not.
		321
		322	=cut
		323
		324	sub post_init(&) {
		325	push @POST_INIT, shift;
214	}	326	}
215		327
216	=item cf::lock_wait $string	328	=item cf::lock_wait $string
217		329
218	Wait until the given lock is available. See cf::lock_acquire.	330	Wait until the given lock is available. See cf::lock_acquire.
…		…
222	Wait until the given lock is available and then acquires it and returns	334	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	335	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	336	for example when the coroutine gets canceled), the lock is automatically
225	returned.	337	returned.
226		338
		339	Locks are *not* recursive, locking from the same coro twice results in a
		340	deadlocked coro.
		341
227	Lock names should begin with a unique identifier (for example, cf::map::find	342	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	343	uses map_find and cf::map::load uses map_load).
229		344
		345	=item $locked = cf::lock_active $string
		346
		347	Return true if the lock is currently active, i.e. somebody has locked it.
		348
230	=cut	349	=cut
231		350
232	our %LOCK;	351	our %LOCK;
		352	our %LOCKER;#d#
233		353
234	sub lock_wait($) {	354	sub lock_wait($) {
235	my ($key) = @_;	355	my ($key) = @_;
236		356
		357	if ($LOCKER{$key} == $Coro::current) {#d#
		358	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		359	return;#d#
		360	}#d#
		361
237	# wait for lock, if any	362	# wait for lock, if any
238	while ($LOCK{$key}) {	363	while ($LOCK{$key}) {
		364	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
239	push @{ $LOCK{$key} }, $Coro::current;	365	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	366	Coro::schedule;
241	}	367	}
242	}	368	}
243		369
…		…
246		372
247	# wait, to be sure we are not locked	373	# wait, to be sure we are not locked
248	lock_wait $key;	374	lock_wait $key;
249		375
250	$LOCK{$key} = [];	376	$LOCK{$key} = [];
		377	$LOCKER{$key} = $Coro::current;#d#
251		378
252	Coro::guard {	379	Coro::guard {
		380	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	381	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	382	$_->ready for @{ delete $LOCK{$key} };
255	}	383	}
256	}	384	}
257		385
		386	sub lock_active($) {
		387	my ($key) = @_;
		388
		389	! ! $LOCK{$key}
		390	}
		391
258	sub freeze_mainloop {	392	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
260		394
261	my $guard = Coro::guard { $TICK_WATCHER->start };	395	Coro::guard \&tick_inhibit_dec;
262	$TICK_WATCHER->stop;	396	}
263	$guard	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
		456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
264	}	471	}
265		472
266	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
267		474
268	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		480
274	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
275		482
276	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
277		484
278	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
281		489
282	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
285	fast or be very important.	493	fast or be very important.
…		…
288		496
289	sub sync_job(&) {	497	sub sync_job(&) {
290	my ($job) = @_;	498	my ($job) = @_;
291		499
292	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
293	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
295		505
296	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	507
298	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
299		509
300	my $busy = 1;	510	my $busy = 1;
301	my @res;	511	my @res;
302		512
303	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	515	@res = eval { $job->() };
305	warn $@ if $@;	516	warn $@ if $@;
306	undef $busy;	517	undef $busy;
307	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
308		519
309	while ($busy) {	520	while ($busy) {
310	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
311	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
312		531
313	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
314	} else {	533	} else {
315	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
316		535
…		…
336	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
337		556
338	$coro	557	$coro
339	}	558	}
340		559
341	sub write_runtime {	560	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		561
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
345	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
346		566
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	567	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		568
351	aio_fsync $fh	569	sub fork_call(&@) {
352	and return;	570	my ($cb, @args) = @_;
353		571
354	close $fh	572	# we seemingly have to make a local copy of the whole thing,
355	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
356		575
357	aio_rename "$runtime~", $runtime	576	my @res = Coro::Util::fork_eval {
358	and return;	577	reset_signals;
		578	&$cb
		579	}, @args;
359		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
360	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	747	}
362		748
363	=back	749	=back
364		750
365	=cut	751	=cut
366		752
367	#############################################################################	753	#############################################################################
368		754
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
526		756
527	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
528	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
530		760
531	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	763	Deliantra).
534		764
535	=over 4	765	=over 4
536		766
537	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
538		768
…		…
582	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
583		813
584	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
585	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
586		816
587	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
588	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
589		819
590	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
591		821
592	=over 4	822	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	883	our @CB_MAP = ();
654		884
655	my %attachment;	885	my %attachment;
656		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
657	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
659		895
660	use sort 'stable';	896	use sort 'stable';
661		897
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
696		932
697	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		937
702	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	939	my $pkg = shift @arg;
704		940
705	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
735	}	971	}
736		972
737	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
738	} else {	974	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	976	}
741		977
742	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
743	}	979	}
744		980
…		…
746	if (ref $_[0]) {	982	if (ref $_[0]) {
747	_object_attach @_;	983	_object_attach @_;
748	} else {	984	} else {
749	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
750	}	986	}
		987	_recalc_want;
751	};	988	};
752		989
753	# all those should be optimised	990	# all those should be optimised
754	sub cf::attachable::detach {	991	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
759	reattach ($obj);	996	reattach ($obj);
760	} else {	997	} else {
761	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
762	}	999	}
		1000	_recalc_want;
763	};	1001	};
764		1002
765	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
767		1005
…		…
782	";	1020	";
783	die if $@;	1021	die if $@;
784	}	1022	}
785		1023
786	our $override;	1024	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		1026
789	sub override {	1027	sub override {
790	$override = 1;	1028	$override = 1;
791	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
792	}	1030	}
793		1031
794	sub do_invoke {	1032	sub do_invoke {
795	my $event = shift;	1033	my $event = shift;
796	my $callbacks = shift;	1034	my $callbacks = shift;
797		1035
798	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
799		1037
800	local $override;	1038	local $override;
801		1039
802	for (@$callbacks) {	1040	for (@$callbacks) {
803	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
812	}	1050	}
813		1051
814	0	1052	0
815	}	1053	}
816		1054
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1056
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1058
821	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
822		1060
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
824	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1064
827	=back	1065	=back
828		1066
829	=cut	1067	=cut
830		1068
831	#############################################################################	1069	#############################################################################
832	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
833		1113
834	sub reattach {	1114	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1120
838	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
839		1122
840	@$registry = ();	1123	@$registry = ();
841		1124
…		…
856	cf::attachable->attach (	1139	cf::attachable->attach (
857	prio => -1000000,	1140	prio => -1000000,
858	on_instantiate => sub {	1141	on_instantiate => sub {
859	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
860		1143
861	$data = from_json $data;	1144	$data = decode_json $data;
862		1145
863	for (@$data) {	1146	for (@$data) {
864	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
865		1148
866	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1165	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
884		1167
885	sync_job {	1168	sync_job {
886	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
889		1173
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1177	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1178	aio_close $fh;
895		1179
896	if (@$objs) {	1180	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1183	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1184	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1185	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1186	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1187	aio_rename "$filename.pst~", "$filename.pst";
904	}	1188	}
905	} else {	1189	} else {
906	aio_unlink "$filename.pst";	1190	aio_unlink "$filename.pst";
907	}	1191	}
908		1192
909	aio_rename "$filename~", $filename;	1193	aio_rename "$filename~", $filename;
		1194
		1195	$filename =~ s%/[^/]+$%%;
		1196	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1197	} else {
911	warn "FATAL: $filename~: $!\n";	1198	warn "FATAL: $filename~: $!\n";
912	}	1199	}
913	} else {	1200	} else {
914	aio_unlink $filename;	1201	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1202	aio_unlink "$filename.pst";
916	}	1203	}
917	}	1204	};
918	}	1205	}
919		1206
920	sub object_freezer_as_string {	1207	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1208	my ($rdata, $objs) = @_;
922		1209
…		…
934	or return;	1221	or return;
935		1222
936	unless (aio_stat "$filename.pst") {	1223	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1224	(aio_load "$filename.pst", $av) >= 0
938	or return;	1225	or return;
		1226
939	$av = eval { (Storable::thaw $av)->{objs} };	1227	my $st = eval { Coro::Storable::thaw $av };
		1228	$av = $st->{objs};
940	}	1229	}
941		1230
		1231	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1232	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1233	$decname, length $data, scalar @{$av || []};
		1234
944	return ($data, $av);	1235	($data, $av)
945	}	1236	}
		1237
		1238	=head2 COMMAND CALLBACKS
		1239
		1240	=over 4
		1241
		1242	=cut
946		1243
947	#############################################################################	1244	#############################################################################
948	# command handling &c	1245	# command handling &c
949		1246
950	=item cf::register_command $name => \&callback($ob,$args);	1247	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1260	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1261	}
965		1262
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1263	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1264
968	Register a callbackf ro execution when the client sends an extcmd packet.	1265	Register a callback for execution when the client sends an (synchronous)
		1266	extcmd packet. Ext commands will be processed in the order they are
		1267	received by the server, like other user commands. The first argument is
		1268	the logged-in player. Ext commands can only be processed after a player
		1269	has logged in successfully.
969		1270
970	If the callback returns something, it is sent back as if reply was being	1271	If the callback returns something, it is sent back as if reply was being
971	called.	1272	called.
972		1273
		1274	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1275
		1276	Register a callback for execution when the client sends an (asynchronous)
		1277	exticmd packet. Exti commands are processed by the server as soon as they
		1278	are received, i.e. out of order w.r.t. other commands. The first argument
		1279	is a client socket. Exti commands can be received anytime, even before
		1280	log-in.
		1281
		1282	If the callback returns something, it is sent back as if reply was being
		1283	called.
		1284
973	=cut	1285	=cut
974		1286
975	sub register_extcmd {	1287	sub register_extcmd {
976	my ($name, $cb) = @_;	1288	my ($name, $cb) = @_;
977		1289
978	$EXTCMD{$name} = $cb;	1290	$EXTCMD{$name} = $cb;
979	}	1291	}
		1292
		1293	sub register_exticmd {
		1294	my ($name, $cb) = @_;
		1295
		1296	$EXTICMD{$name} = $cb;
		1297	}
		1298
		1299	use File::Glob ();
980		1300
981	cf::player->attach (	1301	cf::player->attach (
982	on_command => sub {	1302	on_command => sub {
983	my ($pl, $name, $params) = @_;	1303	my ($pl, $name, $params) = @_;
984		1304
…		…
992	cf::override;	1312	cf::override;
993	},	1313	},
994	on_extcmd => sub {	1314	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1315	my ($pl, $buf) = @_;
996		1316
997	my $msg = eval { from_json $buf };	1317	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1318
999	if (ref $msg) {	1319	if (ref $msg) {
		1320	my ($type, $reply, @payload) =
		1321	"ARRAY" eq ref $msg
		1322	? @$msg
		1323	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1324
		1325	my @reply;
		1326
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1327	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1328	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1329	}
		1330
		1331	$pl->ext_reply ($reply, @reply)
		1332	if $reply;
		1333
1005	} else {	1334	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1335	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1336	}
1008		1337
1009	cf::override;	1338	cf::override;
1010	},	1339	},
1011	);	1340	);
1012		1341
		1342	# "readahead" all extensions
1013	sub load_extension {	1343	sub cache_extensions {
1014	my ($path) = @_;	1344	my $grp = IO::AIO::aio_group;
1015		1345
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1346	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1017	my $base = $1;	1347	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1348	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1349	}
1020	$pkg = "ext::$pkg";	1350	};
1021		1351
1022	warn "... loading '$path' into '$pkg'\n";	1352	$grp
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}	1353	}
1039		1354
1040	sub load_extensions {	1355	sub load_extensions {
		1356	cf::sync_job {
		1357	my %todo;
		1358
1041	for my $ext (<$LIBDIR/*.ext>) {	1359	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1360	next unless -r $path;
1043	eval {	1361
1044	load_extension $ext;	1362	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1363	my $base = $1;
		1364	my $pkg = $1;
		1365	$pkg =~ s/[^[:word:]]/_/g;
		1366	$pkg = "ext::$pkg";
		1367
		1368	open my $fh, "<:utf8", $path
		1369	or die "$path: $!";
		1370
		1371	my $source = do { local $/; <$fh> };
		1372
		1373	my %ext = (
		1374	path => $path,
		1375	base => $base,
		1376	pkg => $pkg,
		1377	);
		1378
		1379	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1380	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1381
		1382	$ext{source} =
		1383	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1384	. "#line 1 \"$path\"\n{\n"
		1385	. $source
		1386	. "\n};\n1";
		1387
		1388	$todo{$base} = \%ext;
		1389	}
		1390
		1391	my %done;
		1392	while (%todo) {
		1393	my $progress;
		1394
		1395	while (my ($k, $v) = each %todo) {
		1396	for (split /,\s*/, $v->{meta}{depends}) {
		1397	goto skip
		1398	unless exists $done{$_};
		1399	}
		1400
		1401	warn "... loading '$k' into '$v->{pkg}'\n";
		1402
		1403	unless (eval $v->{source}) {
		1404	my $msg = $@ ? "$v->{path}: $@\n"
		1405	: "$v->{base}: extension inactive.\n";
		1406
		1407	if (exists $v->{meta}{mandatory}) {
		1408	warn $msg;
		1409	cf::cleanup "mandatory extension failed to load, exiting.";
		1410	}
		1411
		1412	warn $msg;
		1413	}
		1414
		1415	$done{$k} = delete $todo{$k};
		1416	push @EXTS, $v->{pkg};
		1417	$progress = 1;
1045	1	1418	}
1046	} or warn "$ext not loaded: $@";	1419
		1420	skip:
		1421	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1422	unless $progress;
		1423	}
1047	}	1424	};
1048	}	1425	}
1049		1426
1050	#############################################################################	1427	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1428
1053	*cf::mapsupport::on_clean = sub {	1429	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1430
1066	=head2 CORE EXTENSIONS	1431	=head2 CORE EXTENSIONS
1067		1432
1068	Functions and methods that extend core crossfire objects.	1433	Functions and methods that extend core deliantra objects.
1069		1434
1070	=cut	1435	=cut
1071		1436
1072	package cf::player;	1437	package cf::player;
1073		1438
…		…
1075		1440
1076	=head3 cf::player	1441	=head3 cf::player
1077		1442
1078	=over 4	1443	=over 4
1079		1444
		1445	=item cf::player::num_playing
		1446
		1447	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1448
		1449	=cut
		1450
		1451	sub num_playing {
		1452	scalar grep
		1453	$_->ob->map
		1454	&& !$_->hidden
		1455	&& !$_->ob->flag (cf::FLAG_WIZ),
		1456	cf::player::list
		1457	}
		1458
1080	=item cf::player::find $login	1459	=item cf::player::find $login
1081		1460
1082	Returns the given player object, loading it if necessary (might block).	1461	Returns the given player object, loading it if necessary (might block).
1083		1462
1084	=cut	1463	=cut
1085		1464
1086	sub playerdir($) {	1465	sub playerdir($) {
1087	cf::localdir	1466	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1467	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1468	}
1093		1469
1094	sub path($) {	1470	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1471	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1472
1097	(playerdir $login) . "/$login.pl"	1473	(playerdir $login) . "/playerdata"
1098	}	1474	}
1099		1475
1100	sub find_active($) {	1476	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1477	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1478	and $cf::PLAYER{$_[0]}->active
…		…
1105		1481
1106	sub exists($) {	1482	sub exists($) {
1107	my ($login) = @_;	1483	my ($login) = @_;
1108		1484
1109	$cf::PLAYER{$login}	1485	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1486	or !aio_stat path $login
1111	}	1487	}
1112		1488
1113	sub find($) {	1489	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1490	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1491	my $login = $_[0];
1116		1492
1117	my $guard = cf::lock_acquire "user_find:$login";	1493	my $guard = cf::lock_acquire "user_find:$login";
1118		1494
1119	$cf::PLAYER{$_[0]} || do {	1495	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1496	# rename old playerfiles to new ones
		1497	#TODO: remove when no longer required
		1498	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1499	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1500	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1501	aio_unlink +(playerdir $login) . "/$login.pl";
		1502
		1503	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1504	or return;
		1505
		1506	my $pl = cf::player::load_pl $f
		1507	or return;
		1508
		1509	local $cf::PLAYER_LOADING{$login} = $pl;
		1510	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1511	$cf::PLAYER{$login} = $pl
1123	}	1512	}
1124	}	1513	}
1125	}	1514	}
1126		1515
…		…
1135	return if $pl->{deny_save};	1524	return if $pl->{deny_save};
1136		1525
1137	aio_mkdir playerdir $pl, 0770;	1526	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1527	$pl->{last_save} = $cf::RUNTIME;
1139		1528
		1529	cf::get_slot 0.01;
		1530
1140	$pl->save_pl ($path);	1531	$pl->save_pl ($path);
1141	Coro::cede;	1532	cf::cede_to_tick;
1142	}	1533	}
1143		1534
1144	sub new($) {	1535	sub new($) {
1145	my ($login) = @_;	1536	my ($login) = @_;
1146		1537
…		…
1152	$cf::PLAYER{$login} = $self;	1543	$cf::PLAYER{$login} = $self;
1153		1544
1154	$self	1545	$self
1155	}	1546	}
1156		1547
		1548	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1549
		1550	=cut
		1551
		1552	sub send_msg {
		1553	my $ns = shift->ns
		1554	or return;
		1555	$ns->send_msg (@_);
		1556	}
		1557
1157	=item $pl->quit_character	1558	=item $pl->quit_character
1158		1559
1159	Nukes the player without looking back. If logged in, the connection will	1560	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1561	be destroyed. May block for a long time.
1161		1562
1162	=cut	1563	=cut
1163		1564
1164	sub quit_character {	1565	sub quit_character {
1165	my ($pl) = @_;	1566	my ($pl) = @_;
1166		1567
		1568	my $name = $pl->ob->name;
		1569
1167	$pl->{deny_save} = 1;	1570	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1571	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1169		1572
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1573	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1171	$pl->deactivate;	1574	$pl->deactivate;
		1575	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1576	$pl->ob->check_score;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1577	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1173	$pl->ns->destroy if $pl->ns;	1578	$pl->ns->destroy if $pl->ns;
1174		1579
1175	my $path = playerdir $pl;	1580	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1581	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1582	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1583	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1584	$pl->destroy;
		1585
		1586	my $prefix = qr<^~\Q$name\E/>;
		1587
		1588	# nuke player maps
		1589	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1590
1180	IO::AIO::aio_rmtree $temp;	1591	IO::AIO::aio_rmtree $temp;
		1592	}
		1593
		1594	=item $pl->kick
		1595
		1596	Kicks a player out of the game. This destroys the connection.
		1597
		1598	=cut
		1599
		1600	sub kick {
		1601	my ($pl, $kicker) = @_;
		1602
		1603	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1604	$pl->killer ("kicked");
		1605	$pl->ns->destroy;
1181	}	1606	}
1182		1607
1183	=item cf::player::list_logins	1608	=item cf::player::list_logins
1184		1609
1185	Returns am arrayref of all valid playernames in the system, can take a	1610	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1611	while and may block, so not sync_job-capable, ever.
1187		1612
1188	=cut	1613	=cut
1189		1614
1190	sub list_logins {	1615	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1616	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1617	or return [];
1193		1618
1194	my @logins;	1619	my @logins;
1195		1620
1196	for my $login (@$dirs) {	1621	for my $login (@$dirs) {
		1622	my $path = path $login;
		1623
		1624	# a .pst is a dead give-away for a valid player
		1625	# if no pst file found, open and chekc for blocked users
		1626	if (aio_stat "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1627	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1628	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1629	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1630	}
1200		1631
1201	utf8::decode $login;	1632	utf8::decode $login;
1202	push @logins, $login;	1633	push @logins, $login;
1203	}	1634	}
1204		1635
1205	\@logins	1636	\@logins
1206	}	1637	}
1207		1638
1208	=item $player->maps	1639	=item $player->maps
1209		1640
1210	Returns an arrayref of cf::path's of all maps that are private for this	1641	Returns an arrayref of map paths that are private for this
1211	player. May block.	1642	player. May block.
1212		1643
1213	=cut	1644	=cut
1214		1645
1215	sub maps($) {	1646	sub maps($) {
1216	my ($pl) = @_;	1647	my ($pl) = @_;
		1648
		1649	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1650
1218	my $files = aio_readdir playerdir $pl	1651	my $files = aio_readdir playerdir $pl
1219	or return;	1652	or return;
1220		1653
1221	my @paths;	1654	my @paths;
…		…
1223	for (@$files) {	1656	for (@$files) {
1224	utf8::decode $_;	1657	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1658	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1659	next unless /^$PATH_SEP/o;
1227		1660
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1661	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1662	}
1230		1663
1231	\@paths	1664	\@paths
1232	}	1665	}
1233		1666
		1667	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1668
		1669	Expand deliantra pod fragments into protocol xml.
		1670
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1671	=item $player->ext_reply ($msgid, @msg)
1235		1672
1236	Sends an ext reply to the player.	1673	Sends an ext reply to the player.
1237		1674
1238	=cut	1675	=cut
1239		1676
1240	sub ext_reply($$$%) {	1677	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1678	my ($self, $id, @msg) = @_;
1242		1679
1243	$msg{msgid} = $id;	1680	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1681	}
1247		1682
1248	package cf;	1683	=item $player->ext_msg ($type, @msg)
		1684
		1685	Sends an ext event to the client.
		1686
		1687	=cut
		1688
		1689	sub ext_msg($$@) {
		1690	my ($self, $type, @msg) = @_;
		1691
		1692	$self->ns->ext_msg ($type, @msg);
		1693	}
		1694
		1695	=head3 cf::region
		1696
		1697	=over 4
		1698
		1699	=cut
		1700
		1701	package cf::region;
		1702
		1703	=item cf::region::find_by_path $path
		1704
		1705	Tries to decuce the likely region for a map knowing only its path.
		1706
		1707	=cut
		1708
		1709	sub find_by_path($) {
		1710	my ($path) = @_;
		1711
		1712	my ($match, $specificity);
		1713
		1714	for my $region (list) {
		1715	if ($region->{match} && $path =~ $region->{match}) {
		1716	($match, $specificity) = ($region, $region->specificity)
		1717	if $region->specificity > $specificity;
		1718	}
		1719	}
		1720
		1721	$match
		1722	}
1249		1723
1250	=back	1724	=back
1251
1252		1725
1253	=head3 cf::map	1726	=head3 cf::map
1254		1727
1255	=over 4	1728	=over 4
1256		1729
…		…
1259	package cf::map;	1732	package cf::map;
1260		1733
1261	use Fcntl;	1734	use Fcntl;
1262	use Coro::AIO;	1735	use Coro::AIO;
1263		1736
		1737	use overload
		1738	'""' => \&as_string,
		1739	fallback => 1;
		1740
1264	our $MAX_RESET = 3600;	1741	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1742	our $DEFAULT_RESET = 3000;
1266		1743
1267	sub generate_random_map {	1744	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1745	my ($self, $rmp) = @_;
		1746
		1747	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1269		1748
1270	# mit "rum" bekleckern, nicht	1749	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1750	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1751	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1752	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1753	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1754	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1755	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1760	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1761	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1762	)
1285	}	1763	}
1286		1764
		1765	=item cf::map->register ($regex, $prio)
		1766
		1767	Register a handler for the map path matching the given regex at the
		1768	givne priority (higher is better, built-in handlers have priority 0, the
		1769	default).
		1770
		1771	=cut
		1772
		1773	sub register {
		1774	my (undef, $regex, $prio) = @_;
		1775	my $pkg = caller;
		1776
		1777	no strict;
		1778	push @{"$pkg\::ISA"}, __PACKAGE__;
		1779
		1780	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1781	}
		1782
		1783	# also paths starting with '/'
		1784	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1785
		1786	sub thawer_merge {
		1787	my ($self, $merge) = @_;
		1788
		1789	# we have to keep some variables in memory intact
		1790	local $self->{path};
		1791	local $self->{load_path};
		1792
		1793	$self->SUPER::thawer_merge ($merge);
		1794	}
		1795
		1796	sub normalise {
		1797	my ($path, $base) = @_;
		1798
		1799	$path = "$path"; # make sure its a string
		1800
		1801	$path =~ s/\.map$//;
		1802
		1803	# map plan:
		1804	#
		1805	# /! non-realised random map exit (special hack!)
		1806	# {... are special paths that are not being touched
		1807	# ?xxx/... are special absolute paths
		1808	# ?random/... random maps
		1809	# /... normal maps
		1810	# ~user/... per-player map of a specific user
		1811
		1812	$path =~ s/$PATH_SEP/\//go;
		1813
		1814	# treat it as relative path if it starts with
		1815	# something that looks reasonable
		1816	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1817	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1818
		1819	$base =~ s{[^/]+/?$}{};
		1820	$path = "$base/$path";
		1821	}
		1822
		1823	for ($path) {
		1824	redo if s{//}{/};
		1825	redo if s{/\.?/}{/};
		1826	redo if s{/[^/]+/\.\./}{/};
		1827	}
		1828
		1829	$path
		1830	}
		1831
		1832	sub new_from_path {
		1833	my (undef, $path, $base) = @_;
		1834
		1835	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1836
		1837	$path = normalise $path, $base;
		1838
		1839	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1840	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1841	my $self = bless cf::map::new, $pkg;
		1842	$self->{path} = $path; $self->path ($path);
		1843	$self->init; # pass $1 etc.
		1844	return $self;
		1845	}
		1846	}
		1847
		1848	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1849	()
		1850	}
		1851
		1852	sub init {
		1853	my ($self) = @_;
		1854
		1855	$self
		1856	}
		1857
		1858	sub as_string {
		1859	my ($self) = @_;
		1860
		1861	"$self->{path}"
		1862	}
		1863
		1864	# the displayed name, this is a one way mapping
		1865	sub visible_name {
		1866	&as_string
		1867	}
		1868
		1869	# the original (read-only) location
		1870	sub load_path {
		1871	my ($self) = @_;
		1872
		1873	"$MAPDIR/$self->{path}.map"
		1874	}
		1875
		1876	# the temporary/swap location
		1877	sub save_path {
		1878	my ($self) = @_;
		1879
		1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1881	"$TMPDIR/$path.map"
		1882	}
		1883
		1884	# the unique path, undef == no special unique path
		1885	sub uniq_path {
		1886	my ($self) = @_;
		1887
		1888	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1889	"$UNIQUEDIR/$path"
		1890	}
		1891
1287	# and all this just because we cannot iterate over	1892	# and all this just because we cannot iterate over
1288	# all maps in C++...	1893	# all maps in C++...
1289	sub change_all_map_light {	1894	sub change_all_map_light {
1290	my ($change) = @_;	1895	my ($change) = @_;
1291		1896
1292	$_->change_map_light ($change)	1897	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1898	for grep $_->outdoor, values %cf::MAP;
1294	}	1899	}
1295		1900
		1901	sub decay_objects {
		1902	my ($self) = @_;
		1903
		1904	return if $self->{deny_reset};
		1905
		1906	$self->do_decay_objects;
		1907	}
		1908
		1909	sub unlink_save {
		1910	my ($self) = @_;
		1911
		1912	utf8::encode (my $save = $self->save_path);
		1913	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1914	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1915	}
		1916
1296	sub load_map_header($) {	1917	sub load_header_from($) {
1297	my ($path) = @_;	1918	my ($self, $path) = @_;
1298		1919
1299	utf8::encode $path;	1920	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1921	my $f = new_from_file cf::object::thawer $path
1301	or return;	1922	or return;
1302		1923
1303	my $map = cf::map::new	1924	$self->_load_header ($f)
1304	or return;	1925	or return;
1305		1926
1306	# for better error messages only, will be overwritten later	1927	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1928	$f->resolve_delayed_derefs;
1308		1929
1309	$map->load_header ($path)	1930	$self->{load_path} = $path;
		1931
		1932	1
		1933	}
		1934
		1935	sub load_header_orig {
		1936	my ($self) = @_;
		1937
		1938	$self->load_header_from ($self->load_path)
		1939	}
		1940
		1941	sub load_header_temp {
		1942	my ($self) = @_;
		1943
		1944	$self->load_header_from ($self->save_path)
		1945	}
		1946
		1947	sub prepare_temp {
		1948	my ($self) = @_;
		1949
		1950	$self->last_access ((delete $self->{last_access})
		1951	|| $cf::RUNTIME); #d#
		1952	# safety
		1953	$self->{instantiate_time} = $cf::RUNTIME
		1954	if $self->{instantiate_time} > $cf::RUNTIME;
		1955	}
		1956
		1957	sub prepare_orig {
		1958	my ($self) = @_;
		1959
		1960	$self->{load_original} = 1;
		1961	$self->{instantiate_time} = $cf::RUNTIME;
		1962	$self->last_access ($cf::RUNTIME);
		1963	$self->instantiate;
		1964	}
		1965
		1966	sub load_header {
		1967	my ($self) = @_;
		1968
		1969	if ($self->load_header_temp) {
		1970	$self->prepare_temp;
		1971	} else {
		1972	$self->load_header_orig
1310	or return;	1973	or return;
		1974	$self->prepare_orig;
		1975	}
1311		1976
1312	$map->{load_path} = $path;	1977	$self->{deny_reset} = 1
		1978	if $self->no_reset;
1313		1979
1314	$map	1980	$self->default_region (cf::region::find_by_path $self->{path})
		1981	unless $self->default_region;
		1982
		1983	1
1315	}	1984	}
1316		1985
1317	sub find;	1986	sub find;
1318	sub find {	1987	sub find {
1319	my ($path, $origin) = @_;	1988	my ($path, $origin) = @_;
1320		1989
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1990	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1991
		1992	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	1993	cf::lock_wait "map_find:$path";
1327		1994
1328	$cf::MAP{$key} || do {	1995	$cf::MAP{$path} || do {
		1996	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1329	my $guard = cf::lock_acquire "map_find:$key";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1330		1998
1331	# do it the slow way	1999	my $map = new_from_path cf::map $path
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2000	or return;
1345		2001
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2002	$map->{last_save} = $cf::RUNTIME;
1358		2003
1359	Coro::cede;	2004	$map->load_header
		2005	or return;
1360		2006
1361	if ($map->should_reset) {	2007	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2008	# doing this can freeze the server in a sync job, obviously
		2009	#$cf::WAIT_FOR_TICK->wait;
		2010	undef $guard2;
		2011	undef $guard1;
1362	$map->reset;	2012	$map->reset;
1363	undef $guard;
1364	$map = find $path	2013	return find $path;
1365	or return;
1366	}	2014	}
1367		2015
1368	$cf::MAP{$key} = $map	2016	$cf::MAP{$path} = $map
1369	}	2017	}
1370	}	2018	}
		2019
		2020	sub pre_load { }
		2021	sub post_load { }
1371		2022
1372	sub load {	2023	sub load {
1373	my ($self) = @_;	2024	my ($self) = @_;
1374		2025
		2026	local $self->{deny_reset} = 1; # loading can take a long time
		2027
1375	my $path = $self->{path};	2028	my $path = $self->{path};
		2029
		2030	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2031	my $guard = cf::lock_acquire "map_data:$path";
1377		2032
		2033	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2034	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		2035
1380	$self->in_memory (cf::MAP_LOADING);	2036	$self->in_memory (cf::MAP_LOADING);
1381		2037
1382	$self->alloc;	2038	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2039
		2040	$self->pre_load;
		2041	cf::cede_to_tick;
		2042
		2043	my $f = new_from_file cf::object::thawer $self->{load_path};
		2044	$f->skip_block;
		2045	$self->_load_objects ($f)
1384	or return;	2046	or return;
1385		2047
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2048	$self->post_load_original
1387	if delete $self->{load_original};	2049	if delete $self->{load_original};
1388		2050
1389	if (my $uniq = $path->uniq_path) {	2051	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2052	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2053	unless (aio_stat $uniq) {
		2054	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2055	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2056	$self->_load_objects ($f);
		2057	$f->resolve_delayed_derefs;
		2058	}
1394	}	2059	}
1395	}	2060	}
1396		2061
1397	Coro::cede;	2062	$f->resolve_delayed_derefs;
1398		2063
		2064	cf::cede_to_tick;
1399	# now do the right thing for maps	2065	# now do the right thing for maps
1400	$self->link_multipart_objects;	2066	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2067	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2068	unless $self->difficulty;
		2069	cf::cede_to_tick;
		2070
		2071	unless ($self->{deny_activate}) {
		2072	$self->decay_objects;
		2073	$self->fix_auto_apply;
		2074	$self->update_buttons;
		2075	cf::cede_to_tick;
		2076	$self->set_darkness_map;
		2077	cf::cede_to_tick;
1412	$self->activate;	2078	$self->activate;
1413	}	2079	}
1414		2080
1415	Coro::cede;	2081	$self->{last_save} = $cf::RUNTIME;
		2082	$self->last_access ($cf::RUNTIME);
1416		2083
1417	$self->in_memory (cf::MAP_IN_MEMORY);	2084	$self->in_memory (cf::MAP_ACTIVE);
		2085	}
		2086
		2087	$self->post_load;
		2088	}
		2089
		2090	sub customise_for {
		2091	my ($self, $ob) = @_;
		2092
		2093	return find "~" . $ob->name . "/" . $self->{path}
		2094	if $self->per_player;
		2095
		2096	# return find "?party/" . $ob->name . "/" . $self->{path}
		2097	# if $self->per_party;
		2098
		2099	$self
1418	}	2100	}
1419		2101
1420	# find and load all maps in the 3x3 area around a map	2102	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	2103	sub load_neighbours {
1422	my ($map) = @_;	2104	my ($map) = @_;
1423		2105
1424	my @diag; # diagonal neighbours	2106	my @neigh; # diagonal neighbours
1425		2107
1426	for (0 .. 3) {	2108	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	2109	my $neigh = $map->tile_path ($_)
1428	or next;	2110	or next;
1429	$neigh = find $neigh, $map	2111	$neigh = find $neigh, $map
1430	or next;	2112	or next;
1431	$neigh->load;	2113	$neigh->load;
1432		2114
		2115	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2116	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2117	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2118	}
1436		2119
1437	for (@diag) {	2120	for (grep defined $_->[0], @neigh) {
		2121	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2122	my $neigh = find $path, $origin
1439	or next;	2123	or next;
1440	$neigh->load;	2124	$neigh->load;
1441	}	2125	}
1442	}	2126	}
1443		2127
…		…
1448	}	2132	}
1449		2133
1450	sub do_load_sync {	2134	sub do_load_sync {
1451	my ($map) = @_;	2135	my ($map) = @_;
1452		2136
		2137	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2138	if $Coro::current == $Coro::main;
		2139
1453	cf::sync_job { $map->load };	2140	cf::sync_job { $map->load };
1454	}	2141	}
1455		2142
1456	our %MAP_PREFETCH;	2143	our %MAP_PREFETCH;
		2144	our $MAP_PREFETCHER = undef;
		2145
		2146	sub find_async {
		2147	my ($path, $origin, $load) = @_;
		2148
		2149	$path = normalise $path, $origin && $origin->{path};
		2150
		2151	if (my $map = $cf::MAP{$path}) {
		2152	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2153	}
		2154
		2155	$MAP_PREFETCH{$path} |= $load;
		2156
1457	our $MAP_PREFETCHER = Coro::async {	2157	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2158	$Coro::current->{desc} = "map prefetcher";
		2159
1459	while (%MAP_PREFETCH) {	2160	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2161	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2162	if (my $map = find $k) {
		2163	$map->load if $v;
		2164	}
		2165
1462	my $path = delete $MAP_PREFETCH{$key};	2166	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2167	}
1468	Coro::schedule;	2168	}
		2169	undef $MAP_PREFETCHER;
1469	}	2170	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2171	$MAP_PREFETCHER->prio (6);
1484		2172
1485	()	2173	()
1486	}	2174	}
1487		2175
1488	sub save {	2176	sub save {
1489	my ($self) = @_;	2177	my ($self) = @_;
1490		2178
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2180
1493	$self->{last_save} = $cf::RUNTIME;	2181	$self->{last_save} = $cf::RUNTIME;
1494		2182
1495	return unless $self->dirty;	2183	return unless $self->dirty;
1496		2184
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2185	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2186	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2187
1500	$self->{load_path} = $save;	2188	$self->{load_path} = $save;
1501		2189
1502	return if $self->{deny_save};	2190	return if $self->{deny_save};
1503		2191
1504	local $self->{last_access} = $self->last_access;#d#	2192	local $self->{last_access} = $self->last_access;#d#
1505		2193
1506	cf::async {	2194	cf::async {
		2195	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2196	$_->contr->save for $self->players;
1508	};	2197	};
1509		2198
		2199	cf::get_slot 0.02;
		2200
1510	if ($uniq) {	2201	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2202	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2203	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2204	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2205	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2206	}
1516	}	2207	}
1517		2208
1518	sub swap_out {	2209	sub swap_out {
1519	my ($self) = @_;	2210	my ($self) = @_;
1520		2211
1521	# save first because save cedes	2212	# save first because save cedes
1522	$self->save;	2213	$self->save;
1523		2214
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2215	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2216
1526	return if $self->players;	2217	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2218	return if $self->in_memory != cf::MAP_ACTIVE;
1528	return if $self->{deny_save};	2219	return if $self->{deny_save};
1529		2220
		2221	$self->in_memory (cf::MAP_SWAPPED);
		2222
		2223	$self->deactivate;
		2224	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2225	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2226	}
1533		2227
1534	sub reset_at {	2228	sub reset_at {
1535	my ($self) = @_;	2229	my ($self) = @_;
1536		2230
1537	# TODO: safety, remove and allow resettable per-player maps	2231	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2232	return 1e99 if $self->{deny_reset};
1540		2233
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2234	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2235	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2236
…		…
1548	my ($self) = @_;	2241	my ($self) = @_;
1549		2242
1550	$self->reset_at <= $cf::RUNTIME	2243	$self->reset_at <= $cf::RUNTIME
1551	}	2244	}
1552		2245
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2246	sub reset {
1575	my ($self) = @_;	2247	my ($self) = @_;
1576		2248
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2249	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2250
1579	return if $self->players;	2251	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2252
1582	warn "resetting map ", $self->path;#d#	2253	warn "resetting map ", $self->path;
		2254
		2255	$self->in_memory (cf::MAP_SWAPPED);
		2256
		2257	# need to save uniques path
		2258	unless ($self->{deny_save}) {
		2259	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2260
		2261	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2262	if $uniq;
		2263	}
1583		2264
1584	delete $cf::MAP{$self->path};	2265	delete $cf::MAP{$self->path};
1585		2266
		2267	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->clear;
1587		2270
1588	$self->unlink_save;	2271	$self->unlink_save;
1589	$self->destroy;	2272	$self->destroy;
1590	}	2273	}
1591		2274
1592	my $nuke_counter = "aaaa";	2275	my $nuke_counter = "aaaa";
1593		2276
1594	sub nuke {	2277	sub nuke {
1595	my ($self) = @_;	2278	my ($self) = @_;
1596		2279
		2280	{
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
		2283	delete $cf::MAP{$self->path};
		2284
		2285	$self->unlink_save;
		2286
		2287	bless $self, "cf::map";
		2288	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2289	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2290	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2291	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2292
		2293	$cf::MAP{$self->path} = $self;
		2294	}
		2295
1600	$self->reset; # polite request, might not happen	2296	$self->reset; # polite request, might not happen
1601	}	2297	}
1602		2298
1603	sub customise_for {	2299	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2300
1606	if ($map->per_player) {	2301	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2302	maps. May block.
		2303
		2304	=cut
		2305
		2306	sub tmp_maps() {
1608	}	2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $TMPDIR or [] }
		2314	]
		2315	}
1609		2316
1610	$map	2317	=item $maps = cf::map::random_maps
		2318
		2319	Returns an arrayref with all map paths of currently instantiated and saved
		2320	random maps. May block.
		2321
		2322	=cut
		2323
		2324	sub random_maps() {
		2325	[
		2326	map {
		2327	utf8::decode $_;
		2328	/\.map$/
		2329	? normalise "?random/$_"
		2330	: ()
		2331	} @{ aio_readdir $RANDOMDIR or [] }
		2332	]
1611	}	2333	}
1612		2334
1613	=item cf::map::unique_maps	2335	=item cf::map::unique_maps
1614		2336
1615	Returns an arrayref of cf::path's of all shared maps that have	2337	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2338	instantiated unique items. May block.
1617		2339
1618	=cut	2340	=cut
1619		2341
1620	sub unique_maps() {	2342	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2343	[
1622	or return;	2344	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2345	utf8::decode $_;
1628	next if /\.pst$/;	2346	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2347	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2348	? ()
1631	push @paths, new cf::path $_;	2349	: normalise $_
		2350	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2351	]
1633
1634	\@paths
1635	}	2352	}
1636
1637	package cf;
1638		2353
1639	=back	2354	=back
1640		2355
1641	=head3 cf::object	2356	=head3 cf::object
1642		2357
…		…
1646		2361
1647	=over 4	2362	=over 4
1648		2363
1649	=item $ob->inv_recursive	2364	=item $ob->inv_recursive
1650		2365
1651	Returns the inventory of the object _and_ their inventories, recursively.	2366	Returns the inventory of the object I<and> their inventories, recursively,
		2367	but I<not> the object itself.
1652		2368
1653	=cut	2369	=cut
1654		2370
1655	sub inv_recursive_;	2371	sub inv_recursive_;
1656	sub inv_recursive_ {	2372	sub inv_recursive_ {
…		…
1659		2375
1660	sub inv_recursive {	2376	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2377	inv_recursive_ inv $_[0]
1662	}	2378	}
1663		2379
		2380	=item $ref = $ob->ref
		2381
		2382	Creates and returns a persistent reference to an object that can be stored as a string.
		2383
		2384	=item $ob = cf::object::deref ($refstring)
		2385
		2386	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2387	even if the object actually exists. May block.
		2388
		2389	=cut
		2390
		2391	sub deref {
		2392	my ($ref) = @_;
		2393
		2394	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2395	my ($uuid, $name) = ($1, $2);
		2396	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2397	or return;
		2398	$pl->ob->uuid eq $uuid
		2399	or return;
		2400
		2401	$pl->ob
		2402	} else {
		2403	warn "$ref: cannot resolve object reference\n";
		2404	undef
		2405	}
		2406	}
		2407
1664	package cf;	2408	package cf;
1665		2409
1666	=back	2410	=back
1667		2411
1668	=head3 cf::object::player	2412	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2418	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2419	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2420	dialogue with the given NPC character.
1677		2421
1678	=cut	2422	=cut
		2423
		2424	our $SAY_CHANNEL = {
		2425	id => "say",
		2426	title => "Map",
		2427	reply => "say ",
		2428	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2429	};
		2430
		2431	our $CHAT_CHANNEL = {
		2432	id => "chat",
		2433	title => "Chat",
		2434	reply => "chat ",
		2435	tooltip => "Player chat and shouts, global to the server.",
		2436	};
1679		2437
1680	# rough implementation of a future "reply" method that works	2438	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2439	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2440	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2441	sub cf::object::player::reply($$$;$) {
…		…
1685		2443
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2445
1688	if ($self->{record_replies}) {	2446	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2448
1690	} else {	2449	} else {
		2450	my $pl = $self->contr;
		2451
		2452	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2453	my $dialog = $pl->{npc_dialog};
		2454	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2455
		2456	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2457	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2458	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2459	}
1693	}	2460	}
		2461	}
		2462
		2463	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2464
		2465	=cut
		2466
		2467	sub cf::object::send_msg {
		2468	my $pl = shift->contr
		2469	or return;
		2470	$pl->send_msg (@_);
1694	}	2471	}
1695		2472
1696	=item $player_object->may ("access")	2473	=item $player_object->may ("access")
1697		2474
1698	Returns wether the given player is authorized to access resource "access"	2475	Returns wether the given player is authorized to access resource "access"
…		…
1711		2488
1712	=item $player_object->enter_link	2489	=item $player_object->enter_link
1713		2490
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2491	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2492
1716	The player should be reaosnably safe there for short amounts of time. You	2493	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2494	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2495	though, as the palyer cannot control the character while it is on the link
		2496	map.
		2497
		2498	Will never block.
1718		2499
1719	=item $player_object->leave_link ($map, $x, $y)	2500	=item $player_object->leave_link ($map, $x, $y)
1720		2501
1721	Moves the player out of the specila link map onto the given map. If the	2502	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2503	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2504	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2505	fails, to the emergency map position.
1725		2506
1726	Might block.	2507	Might block.
1727		2508
1728	=cut	2509	=cut
		2510
		2511	sub link_map {
		2512	unless ($LINK_MAP) {
		2513	$LINK_MAP = cf::map::find "{link}"
		2514	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2515	$LINK_MAP->load;
		2516	}
		2517
		2518	$LINK_MAP
		2519	}
1729		2520
1730	sub cf::object::player::enter_link {	2521	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2522	my ($self) = @_;
1732		2523
1733	$self->deactivate_recursive;	2524	$self->deactivate_recursive;
1734		2525
1735	return if $self->map == $LINK_MAP;	2526	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2527
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2528	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2529	if $self->map && $self->map->{path} ne "{link}";
1739		2530
1740	$self->enter_map ($LINK_MAP, 20, 20);	2531	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2532	}
1742		2533
1743	sub cf::object::player::leave_link {	2534	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2535	my ($self, $map, $x, $y) = @_;
		2536
		2537	return unless $self->contr->active;
1745		2538
1746	my $link_pos = delete $self->{_link_pos};	2539	my $link_pos = delete $self->{_link_pos};
1747		2540
1748	unless ($map) {	2541	unless ($map) {
1749	# restore original map position	2542	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2556	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2557	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2558	if $x <=0 && $y <= 0;
1766		2559
1767	$map->load;	2560	$map->load;
1768	$map->load_diag;	2561	$map->load_neighbours;
1769		2562
1770	return unless $self->contr->active;	2563	return unless $self->contr->active;
		2564	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1771	$self->activate_recursive;	2565	$self->activate_recursive;
		2566
		2567	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2568	$self->enter_map ($map, $x, $y);
1773	}	2569	}
1774		2570
1775	cf::player->attach (	2571	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2572
1779	# abort map switching before logout	2573	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2574	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2575	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2576	the new (success) or old (failed) map position. In either case, $done will
1783	};	2577	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2578
1789	# try to abort aborted map switching on player login :)	2579	Note that $check will be called with a potentially non-loaded map, so if
1790	# should happen only on crashes	2580	it needs a loaded map it has to call C<< ->load >>.
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2581
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2582	=cut
		2583
		2584	our $GOTOGEN;
1810		2585
1811	sub cf::object::player::goto {	2586	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2587	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2588
1814	$path = new cf::path $path;	2589	# do generation counting so two concurrent goto's will be executed in-order
		2590	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2591
1816	$self->enter_link;	2592	$self->enter_link;
1817		2593
1818	(async {	2594	(async {
1819	my $map = cf::map::find $path->as_string;	2595	$Coro::current->{desc} = "player::goto $path $x $y";
		2596
		2597	# *tag paths override both path and x|y
		2598	if ($path =~ /^\*(.*)$/) {
		2599	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2600	my $ob = $obs[rand @obs];
		2601
		2602	# see if we actually can go there
		2603	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2604	$ob = $obs[rand @obs];
		2605	} else {
		2606	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	}
		2608	# else put us there anyways for now #d#
		2609
		2610	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2611	} else {
		2612	($path, $x, $y) = (undef, undef, undef);
		2613	}
		2614	}
		2615
		2616	my $map = eval {
		2617	my $map = defined $path ? cf::map::find $path : undef;
		2618
		2619	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2620	$map = $map->customise_for ($self);
1821		2621	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2622	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2623	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	}
1826		2625
		2626	$map
		2627	};
		2628
		2629	if ($@) {
		2630	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	LOG llevError | logBacktrace, Carp::longmess $@;
		2632	}
		2633
		2634	if ($gen == $self->{_goto_generation}) {
		2635	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2636	$self->leave_link ($map, $x, $y);
		2637	}
		2638
		2639	$done->() if $done;
1828	})->prio (1);	2640	})->prio (1);
1829	}	2641	}
1830		2642
1831	=item $player_object->enter_exit ($exit_object)	2643	=item $player_object->enter_exit ($exit_object)
1832		2644
…		…
1834		2646
1835	sub parse_random_map_params {	2647	sub parse_random_map_params {
1836	my ($spec) = @_;	2648	my ($spec) = @_;
1837		2649
1838	my $rmp = { # defaults	2650	my $rmp = { # defaults
1839	xsize => 10,	2651	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2652	ysize => (cf::rndm 15, 40),
		2653	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2654	#layout => string,
1841	};	2655	};
1842		2656
1843	for (split /\n/, $spec) {	2657	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2658	my ($k, $v) = split /\s+/, $_, 2;
1845		2659
…		…
1857	# that depends on the exit object	2671	# that depends on the exit object
1858		2672
1859	my $rmp = parse_random_map_params $exit->msg;	2673	my $rmp = parse_random_map_params $exit->msg;
1860		2674
1861	if ($exit->map) {	2675	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2676	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2677	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2678	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2679	$rmp->{origin_y} = $exit->y;
		2680
		2681	$exit->map->touch;
1866	}	2682	}
1867		2683
1868	$rmp->{random_seed} ||= $exit->random_seed;	2684	$rmp->{random_seed} ||= $exit->random_seed;
1869		2685
1870	my $data = cf::to_json $rmp;	2686	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2687	my $md5 = Digest::MD5::md5_hex $data;
		2688	my $meta = "$RANDOMDIR/$md5.meta";
1872		2689
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2690	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2691	aio_write $fh, 0, (length $data), $data, 0;
		2692	undef $fh;
		2693	aio_rename "$meta~", $meta;
1875		2694
		2695	my $slaying = "?random/$md5";
		2696
		2697	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2698	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2699	$exit->msg (undef);
		2700	}
1878	}	2701	}
1879	}	2702	}
1880		2703
1881	sub cf::object::player::enter_exit {	2704	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2705	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2707	return unless $self->type == cf::PLAYER;
1885		2708
1886	$self->enter_link;	2709	$self->enter_link;
1887		2710
1888	(async {	2711	(async {
1889	$self->deactivate_recursive; # just to be sure	2712	$Coro::current->{desc} = "enter_exit";
		2713
1890	unless (eval {	2714	unless (eval {
		2715	$self->deactivate_recursive; # just to be sure
		2716
		2717	# random map handling
		2718	{
		2719	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2720
1891	prepare_random_map $exit	2721	prepare_random_map $exit
1892	if $exit->slaying eq "/!";	2722	if $exit->slaying eq "/!";
		2723	}
1893		2724
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2725	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2726	my $x = $exit->stats->hp;
		2727	my $y = $exit->stats->sp;
1896		2728
		2729	$self->goto ($map, $x, $y);
		2730
		2731	# if exit is damned, update players death & WoR home-position
		2732	$self->contr->savebed ($map, $x, $y)
		2733	if $exit->flag (cf::FLAG_DAMNED);
		2734
1897	1;	2735	1
1898	}) {	2736	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2737	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	2738	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2739	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2740	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2741
1904	warn "ERROR in enter_exit: $@";	2742	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2743	$self->leave_link;
1906	}	2744	}
1907	})->prio (1);	2745	})->prio (1);
…		…
1920		2758
1921	sub cf::client::send_drawinfo {	2759	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2760	my ($self, $text, $flags) = @_;
1923		2761
1924	utf8::encode $text;	2762	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2763	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2764	}
1927		2765
		2766	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2767
		2768	Send a drawinfo or msg packet to the client, formatting the msg for the
		2769	client if neccessary. C<$type> should be a string identifying the type of
		2770	the message, with C<log> being the default. If C<$color> is negative, suppress
		2771	the message unless the client supports the msg packet.
		2772
		2773	=cut
		2774
		2775	# non-persistent channels (usually the info channel)
		2776	our %CHANNEL = (
		2777	"c/identify" => {
		2778	id => "infobox",
		2779	title => "Identify",
		2780	reply => undef,
		2781	tooltip => "Items recently identified",
		2782	},
		2783	"c/examine" => {
		2784	id => "infobox",
		2785	title => "Examine",
		2786	reply => undef,
		2787	tooltip => "Signs and other items you examined",
		2788	},
		2789	"c/book" => {
		2790	id => "infobox",
		2791	title => "Book",
		2792	reply => undef,
		2793	tooltip => "The contents of a note or book",
		2794	},
		2795	"c/lookat" => {
		2796	id => "infobox",
		2797	title => "Look",
		2798	reply => undef,
		2799	tooltip => "What you saw there",
		2800	},
		2801	"c/who" => {
		2802	id => "infobox",
		2803	title => "Players",
		2804	reply => undef,
		2805	tooltip => "Shows players who are currently online",
		2806	},
		2807	"c/body" => {
		2808	id => "infobox",
		2809	title => "Body Parts",
		2810	reply => undef,
		2811	tooltip => "Shows which body parts you posess and are available",
		2812	},
		2813	"c/skills" => {
		2814	id => "infobox",
		2815	title => "Skills",
		2816	reply => undef,
		2817	tooltip => "Shows your experience per skill and item power",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	"c/party" => {
		2832	id => "party",
		2833	title => "Party",
		2834	reply => "gsay ",
		2835	tooltip => "Messages and chat related to your party",
		2836	},
		2837	);
		2838
		2839	sub cf::client::send_msg {
		2840	my ($self, $channel, $msg, $color, @extra) = @_;
		2841
		2842	$msg = $self->pl->expand_cfpod ($msg)
		2843	unless $color & cf::NDI_VERBATIM;
		2844
		2845	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2846
		2847	# check predefined channels, for the benefit of C
		2848	if ($CHANNEL{$channel}) {
		2849	$channel = $CHANNEL{$channel};
		2850
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853
		2854	$channel = $channel->{id};
		2855
		2856	} elsif (ref $channel) {
		2857	# send meta info to client, if not yet sent
		2858	unless (exists $self->{channel}{$channel->{id}}) {
		2859	$self->{channel}{$channel->{id}} = $channel;
		2860	$self->ext_msg (channel_info => $channel)
		2861	if $self->can_msg;
		2862	}
		2863
		2864	$channel = $channel->{id};
		2865	}
		2866
		2867	return unless @extra || length $msg;
		2868
		2869	if ($self->can_msg) {
		2870	# default colour, mask it out
		2871	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2872	if $color & cf::NDI_DEF;
		2873
		2874	my $pkt = "msg "
		2875	. $self->{json_coder}->encode (
		2876	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2877	);
		2878
		2879	# try lzf for large packets
		2880	$pkt = "lzf " . Compress::LZF::compress $pkt
		2881	if 1024 <= length $pkt and $self->{can_lzf};
		2882
		2883	# split very large packets
		2884	if (8192 < length $pkt and $self->{can_lzf}) {
		2885	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2886	$pkt = "frag";
		2887	}
		2888
		2889	$self->send_packet ($pkt);
		2890	} else {
		2891	if ($color >= 0) {
		2892	# replace some tags by gcfclient-compatible ones
		2893	for ($msg) {
		2894	1 while
		2895	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2896	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2897	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2898	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2899	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2900	}
		2901
		2902	$color &= cf::NDI_COLOR_MASK;
		2903
		2904	utf8::encode $msg;
		2905
		2906	if (0 && $msg =~ /\[/) {
		2907	# COMMAND/INFO
		2908	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2909	} else {
		2910	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2911	$self->send_packet ("drawinfo $color $msg")
		2912	}
		2913	}
		2914	}
		2915	}
		2916
		2917	=item $client->ext_msg ($type, @msg)
		2918
		2919	Sends an ext event to the client.
		2920
		2921	=cut
		2922
		2923	sub cf::client::ext_msg($$@) {
		2924	my ($self, $type, @msg) = @_;
		2925
		2926	if ($self->extcmd == 2) {
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2928	} elsif ($self->extcmd == 1) { # TODO: remove
		2929	push @msg, msgtype => "event_$type";
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
		2933
		2934	=item $client->ext_reply ($msgid, @msg)
		2935
		2936	Sends an ext reply to the client.
		2937
		2938	=cut
		2939
		2940	sub cf::client::ext_reply($$@) {
		2941	my ($self, $id, @msg) = @_;
		2942
		2943	if ($self->extcmd == 2) {
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2945	} elsif ($self->extcmd == 1) {
		2946	#TODO: version 1, remove
		2947	unshift @msg, msgtype => "reply", msgid => $id;
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
		2950	}
1928		2951
1929	=item $success = $client->query ($flags, "text", \&cb)	2952	=item $success = $client->query ($flags, "text", \&cb)
1930		2953
1931	Queues a query to the client, calling the given callback with	2954	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2955	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2957
1935	Queries can fail, so check the return code. Or don't, as queries will become	2958	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2959	become reliable at some point in the future.
1937		2960
1938	=cut	2961	=cut
1939		2962
1940	sub cf::client::query {	2963	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2964	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2972	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2974
1952	$self->send_packet ($self->{query_queue}[0][0])	2975	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2976	if @{ $self->{query_queue} } == 1;
		2977
		2978	1
1954	}	2979	}
1955		2980
1956	cf::client->attach (	2981	cf::client->attach (
		2982	on_connect => sub {
		2983	my ($ns) = @_;
		2984
		2985	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2986	},
1957	on_reply => sub {	2987	on_reply => sub {
1958	my ($ns, $msg) = @_;	2988	my ($ns, $msg) = @_;
1959		2989
1960	# this weird shuffling is so that direct followup queries	2990	# this weird shuffling is so that direct followup queries
1961	# get handled first	2991	# get handled first
1962	my $queue = delete $ns->{query_queue}	2992	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2993	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2994
1965	(shift @$queue)->[1]->($msg);	2995	(shift @$queue)->[1]->($msg);
		2996	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2997
1967	push @{ $ns->{query_queue} }, @$queue;	2998	push @{ $ns->{query_queue} }, @$queue;
1968		2999
1969	if (@{ $ns->{query_queue} } == @$queue) {	3000	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3001	if (@$queue) {
…		…
1972	} else {	3003	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3004	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3005	}
1975	}	3006	}
1976	},	3007	},
		3008	on_exticmd => sub {
		3009	my ($ns, $buf) = @_;
		3010
		3011	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3012
		3013	if (ref $msg) {
		3014	my ($type, $reply, @payload) =
		3015	"ARRAY" eq ref $msg
		3016	? @$msg
		3017	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3018
		3019	my @reply;
		3020
		3021	if (my $cb = $EXTICMD{$type}) {
		3022	@reply = $cb->($ns, @payload);
		3023	}
		3024
		3025	$ns->ext_reply ($reply, @reply)
		3026	if $reply;
		3027
		3028	} else {
		3029	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3030	}
		3031
		3032	cf::override;
		3033	},
1977	);	3034	);
1978		3035
1979	=item $client->async (\&cb)	3036	=item $client->async (\&cb)
1980		3037
1981	Create a new coroutine, running the specified callback. The coroutine will	3038	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	3079	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3080	our $safe_hole = new Safe::Hole;
2024		3081
2025	$SIG{FPE} = 'IGNORE';	3082	$SIG{FPE} = 'IGNORE';
2026		3083
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3084	$safe->permit_only (Opcode::opset qw(
		3085	:base_core :base_mem :base_orig :base_math
		3086	grepstart grepwhile mapstart mapwhile
		3087	sort time
		3088	));
2028		3089
2029	# here we export the classes and methods available to script code	3090	# here we export the classes and methods available to script code
2030		3091
2031	=pod	3092	=pod
2032		3093
2033	The following fucntions and emthods are available within a safe environment:	3094	The following functions and methods are available within a safe environment:
2034		3095
2035	cf::object contr pay_amount pay_player map	3096	cf::object
		3097	contr pay_amount pay_player map x y force_find force_add destroy
		3098	insert remove name archname title slaying race decrease split
		3099
2036	cf::object::player player	3100	cf::object::player
2037	cf::player peaceful	3101	player
2038	cf::map trigger	3102
		3103	cf::player
		3104	peaceful
		3105
		3106	cf::map
		3107	trigger
2039		3108
2040	=cut	3109	=cut
2041		3110
2042	for (	3111	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3112	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3113	insert remove inv nrof name archname title slaying race
		3114	decrease split destroy change_exp)],
2044	["cf::object::player" => qw(player)],	3115	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3116	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	3117	["cf::map" => qw(trigger)],
2047	) {	3118	) {
2048	no strict 'refs';	3119	no strict 'refs';
…		…
2119	=back	3190	=back
2120		3191
2121	=cut	3192	=cut
2122		3193
2123	#############################################################################	3194	#############################################################################
		3195	# the server's init and main functions
2124		3196
2125	=head2 EXTENSION DATABASE SUPPORT	3197	sub load_facedata($) {
		3198	my ($path) = @_;
2126		3199
2127	Crossfire maintains a very simple database for extension use. It can	3200	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3201	# for this (global event?)
2129	excludes objects.	3202	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3203
2131	The parameter C<$family> should best start with the name of the extension	3204	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3205
2134	=over 4	3206	warn "loading facedata from $path\n";
2135		3207
2136	=item $hashref = cf::db_get $family	3208	my $facedata;
		3209	0 < aio_load $path, $facedata
		3210	or die "$path: $!";
2137		3211
2138	Return a hashref for use by the extension C<$family>, which can be	3212	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3213
2142	=item $value = cf::db_get $family => $key	3214	$facedata->{version} == 2
		3215	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3216
2144	Returns a single value from the database	3217	# patch in the exptable
2145		3218	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3219	type => FT_RSRC,
2147		3220	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3221	};
		3222	cf::cede_to_tick;
2197		3223
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3224	{
		3225	my $faces = $facedata->{faceinfo};
2202		3226
2203	sub db_get($;$) {	3227	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3228	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3229
2209	sub db_put($$;$) {	3230	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3231	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3232	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2212	} else {	3233	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		3234
2218	cf::global->attach (	3235	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3236	}
2223	);
2224	}
2225		3237
2226	#############################################################################	3238	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3239	next unless $info->{smooth};
2228		3240
2229	sub cfg_load {	3241	my $idx = cf::face::find $face
		3242	or next;
		3243
		3244	if (my $smooth = cf::face::find $info->{smooth}) {
		3245	cf::face::set_smooth $idx, $smooth;
		3246	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3247	} else {
		3248	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3249	}
		3250
		3251	cf::cede_to_tick;
		3252	}
		3253	}
		3254
		3255	{
		3256	my $anims = $facedata->{animinfo};
		3257
		3258	while (my ($anim, $info) = each %$anims) {
		3259	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3260	cf::cede_to_tick;
		3261	}
		3262
		3263	cf::anim::invalidate_all; # d'oh
		3264	}
		3265
		3266	{
		3267	# TODO: for gcfclient pleasure, we should give resources
		3268	# that gcfclient doesn't grok a >10000 face index.
		3269	my $res = $facedata->{resource};
		3270
		3271	while (my ($name, $info) = each %$res) {
		3272	if (defined $info->{type}) {
		3273	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3274	my $data;
		3275
		3276	if ($info->{type} & 1) {
		3277	# prepend meta info
		3278
		3279	my $meta = $enc->encode ({
		3280	name => $name,
		3281	%{ $info->{meta} || {} },
		3282	});
		3283
		3284	$data = pack "(w/a*)*", $meta, $info->{data};
		3285	} else {
		3286	$data = $info->{data};
		3287	}
		3288
		3289	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3290	cf::face::set_type $idx, $info->{type};
		3291	} else {
		3292	$RESOURCE{$name} = $info;
		3293	}
		3294
		3295	cf::cede_to_tick;
		3296	}
		3297	}
		3298
		3299	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3300
		3301	1
		3302	}
		3303
		3304	cf::global->attach (on_resource_update => sub {
		3305	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3306	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3307
		3308	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3309	my $sound = $soundconf->{compat}[$_]
		3310	or next;
		3311
		3312	my $face = cf::face::find "sound/$sound->[1]";
		3313	cf::sound::set $sound->[0] => $face;
		3314	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3315	}
		3316
		3317	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3318	my $face = cf::face::find "sound/$v";
		3319	cf::sound::set $k => $face;
		3320	}
		3321	}
		3322	});
		3323
		3324	register_exticmd fx_want => sub {
		3325	my ($ns, $want) = @_;
		3326
		3327	while (my ($k, $v) = each %$want) {
		3328	$ns->fx_want ($k, $v);
		3329	}
		3330	};
		3331
		3332	sub load_resource_file($) {
		3333	my $guard = lock_acquire "load_resource_file";
		3334
		3335	my $status = load_resource_file_ $_[0];
		3336	get_slot 0.1, 100;
		3337	cf::arch::commit_load;
		3338
		3339	$status
		3340	}
		3341
		3342	sub reload_regions {
		3343	# HACK to clear player env face cache, we need some signal framework
		3344	# for this (global event?)
		3345	%ext::player_env::MUSIC_FACE_CACHE = ();
		3346
		3347	load_resource_file "$MAPDIR/regions"
		3348	or die "unable to load regions file\n";
		3349
		3350	for (cf::region::list) {
		3351	$_->{match} = qr/$_->{match}/
		3352	if exists $_->{match};
		3353	}
		3354	}
		3355
		3356	sub reload_facedata {
		3357	load_facedata "$DATADIR/facedata"
		3358	or die "unable to load facedata\n";
		3359	}
		3360
		3361	sub reload_archetypes {
		3362	load_resource_file "$DATADIR/archetypes"
		3363	or die "unable to load archetypes\n";
		3364	}
		3365
		3366	sub reload_treasures {
		3367	load_resource_file "$DATADIR/treasures"
		3368	or die "unable to load treasurelists\n";
		3369	}
		3370
		3371	sub reload_resources {
		3372	warn "reloading resource files...\n";
		3373
		3374	reload_facedata;
		3375	reload_archetypes;
		3376	reload_regions;
		3377	reload_treasures;
		3378
		3379	warn "finished reloading resource files\n";
		3380	}
		3381
		3382	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3383	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3384	or return;
2232		3385
2233	local $/;	3386	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3387	*CFG = YAML::Load <$fh>;
2235		3388
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3389	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2237		3390
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3391	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3392	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2245	};	3398	};
2246	warn $@ if $@;	3399	warn $@ if $@;
2247	}	3400	}
2248	}	3401	}
2249		3402
		3403	sub pidfile() {
		3404	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3405	or die "$PIDFILE: $!";
		3406	flock $fh, &Fcntl::LOCK_EX
		3407	or die "$PIDFILE: flock: $!";
		3408	$fh
		3409	}
		3410
		3411	# make sure only one server instance is running at any one time
		3412	sub atomic {
		3413	my $fh = pidfile;
		3414
		3415	my $pid = <$fh>;
		3416	kill 9, $pid if $pid > 0;
		3417
		3418	seek $fh, 0, 0;
		3419	print $fh $$;
		3420	}
		3421
2250	sub main {	3422	sub main {
		3423	cf::init_globals; # initialise logging
		3424
		3425	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3426	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3427	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3428	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3429
		3430	cf::init_experience;
		3431	cf::init_anim;
		3432	cf::init_attackmess;
		3433	cf::init_dynamic;
		3434	cf::init_block;
		3435
		3436	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3437
2251	# we must not ever block the main coroutine	3438	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3439	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3440	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3441	(async {
		3442	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3443	EV::loop EV::LOOP_ONESHOT;
		3444	})->prio (Coro::PRIO_MAX);
2255	};	3445	};
2256		3446
2257	cfg_load;	3447	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3448
		3449	cf::sync_job {
		3450	reload_resources;
		3451	reload_config;
		3452	db_init;
		3453
		3454	cf::load_settings;
		3455	cf::load_materials;
		3456	cf::init_uuid;
		3457	cf::init_signals;
		3458	cf::init_commands;
		3459	cf::init_skills;
		3460
		3461	cf::init_beforeplay;
		3462
		3463	atomic;
		3464
2259	load_extensions;	3465	load_extensions;
		3466
		3467	utime time, time, $RUNTIMEFILE;
		3468
		3469	# no (long-running) fork's whatsoever before this point(!)
		3470	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3471
		3472	(pop @POST_INIT)->(0) while @POST_INIT;
		3473	};
		3474
2260	Event::loop;	3475	EV::loop;
2261	}	3476	}
2262		3477
2263	#############################################################################	3478	#############################################################################
2264	# initialisation and cleanup	3479	# initialisation and cleanup
2265		3480
2266	# install some emergency cleanup handlers	3481	# install some emergency cleanup handlers
2267	BEGIN {	3482	BEGIN {
		3483	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3484	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3485	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3486	cf::cleanup "SIG$signal";
2274	},
2275	);	3487	};
		3488	}
		3489	}
		3490
		3491	sub write_runtime_sync {
		3492	# first touch the runtime file to show we are still running:
		3493	# the fsync below can take a very very long time.
		3494
		3495	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3496
		3497	my $guard = cf::lock_acquire "write_runtime";
		3498
		3499	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3500	or return;
		3501
		3502	my $value = $cf::RUNTIME + 90 + 10;
		3503	# 10 is the runtime save interval, for a monotonic clock
		3504	# 60 allows for the watchdog to kill the server.
		3505
		3506	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3507	and return;
		3508
		3509	# always fsync - this file is important
		3510	aio_fsync $fh
		3511	and return;
		3512
		3513	# touch it again to show we are up-to-date
		3514	aio_utime $fh, undef, undef;
		3515
		3516	close $fh
		3517	or return;
		3518
		3519	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3520	and return;
		3521
		3522	warn "runtime file written.\n";
		3523
2276	}	3524	1
		3525	}
		3526
		3527	our $uuid_lock;
		3528	our $uuid_skip;
		3529
		3530	sub write_uuid_sync($) {
		3531	$uuid_skip ||= $_[0];
		3532
		3533	return if $uuid_lock;
		3534	local $uuid_lock = 1;
		3535
		3536	my $uuid = "$LOCALDIR/uuid";
		3537
		3538	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3539	or return;
		3540
		3541	my $value = uuid_seq uuid_cur;
		3542
		3543	unless ($value) {
		3544	warn "cowardly refusing to write zero uuid value!\n";
		3545	return;
		3546	}
		3547
		3548	my $value = uuid_str $value + $uuid_skip;
		3549	$uuid_skip = 0;
		3550
		3551	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3552	and return;
		3553
		3554	# always fsync - this file is important
		3555	aio_fsync $fh
		3556	and return;
		3557
		3558	close $fh
		3559	or return;
		3560
		3561	aio_rename "$uuid~", $uuid
		3562	and return;
		3563
		3564	warn "uuid file written ($value).\n";
		3565
		3566	1
		3567
		3568	}
		3569
		3570	sub write_uuid($$) {
		3571	my ($skip, $sync) = @_;
		3572
		3573	$sync ? write_uuid_sync $skip
		3574	: async { write_uuid_sync $skip };
2277	}	3575	}
2278		3576
2279	sub emergency_save() {	3577	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3578	my $freeze_guard = cf::freeze_mainloop;
2281		3579
2282	warn "enter emergency perl save\n";	3580	warn "emergency_perl_save: enter\n";
2283		3581
2284	cf::sync_job {	3582	cf::sync_job {
		3583	# this is a trade-off: we want to be very quick here, so
		3584	# save all maps without fsync, and later call a global sync
		3585	# (which in turn might be very very slow)
		3586	local $USE_FSYNC = 0;
		3587
2285	# use a peculiar iteration method to avoid tripping on perl	3588	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3589	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3590	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3591	warn "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3592	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3593	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3594	$pl->valid or next;
		3595	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3596	$pl->save;
2293	}	3597	}
2294	warn "end emergency player save\n";	3598	warn "emergency_perl_save: end player save\n";
2295		3599
2296	warn "begin emergency map save\n";	3600	warn "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	3601	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	3602	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3603	$map->valid or next;
2300	$map->save;	3604	$map->save;
2301	}	3605	}
2302	warn "end emergency map save\n";	3606	warn "emergency_perl_save: end map save\n";
		3607
		3608	warn "emergency_perl_save: begin database checkpoint\n";
		3609	BDB::db_env_txn_checkpoint $DB_ENV;
		3610	warn "emergency_perl_save: end database checkpoint\n";
		3611
		3612	warn "emergency_perl_save: begin write uuid\n";
		3613	write_uuid_sync 1;
		3614	warn "emergency_perl_save: end write uuid\n";
2303	};	3615	};
2304		3616
		3617	warn "emergency_perl_save: starting sync()\n";
		3618	IO::AIO::aio_sync sub {
		3619	warn "emergency_perl_save: finished sync()\n";
		3620	};
		3621
2305	warn "leave emergency perl save\n";	3622	warn "emergency_perl_save: leave\n";
2306	}	3623	}
2307		3624
		3625	sub post_cleanup {
		3626	my ($make_core) = @_;
		3627
		3628	warn Carp::longmess "post_cleanup backtrace"
		3629	if $make_core;
		3630
		3631	my $fh = pidfile;
		3632	unlink $PIDFILE if <$fh> == $$;
		3633	}
		3634
		3635	# a safer delete_package, copied from Symbol
		3636	sub clear_package($) {
		3637	my $pkg = shift;
		3638
		3639	# expand to full symbol table name if needed
		3640	unless ($pkg =~ /^main::.*::$/) {
		3641	$pkg = "main$pkg" if $pkg =~ /^::/;
		3642	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3643	$pkg .= '::' unless $pkg =~ /::$/;
		3644	}
		3645
		3646	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3647	my $stem_symtab = *{$stem}{HASH};
		3648
		3649	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3650	or return;
		3651
		3652	# clear all symbols
		3653	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3654	for my $name (keys %$leaf_symtab) {
		3655	_gv_clear *{"$pkg$name"};
		3656	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3657	}
		3658	warn "cleared package $pkg\n";#d#
		3659	}
		3660
2308	sub reload() {	3661	sub do_reload_perl() {
2309	# can/must only be called in main	3662	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3663	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3664	warn "can only reload from main coroutine";
2312	return;	3665	return;
2313	}	3666	}
2314		3667
		3668	return if $RELOAD++;
		3669
		3670	my $t1 = EV::time;
		3671
		3672	while ($RELOAD) {
2315	warn "reloading...";	3673	warn "reloading...";
2316		3674
2317	warn "freezing server";	3675	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3676
		3677	cf::sync_job {
		3678	cf::write_runtime_sync; # external watchdog should not bark
2319	cf::emergency_save;	3679	cf::emergency_save;
		3680	cf::write_runtime_sync; # external watchdog should not bark
2320		3681
2321	warn "sync database to disk";	3682	warn "syncing database to disk";
2322	cf::db_sync;	3683	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3684
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3685	# if anything goes wrong in here, we should simply crash as we already saved
2327		3686
2328	warn "cancel all watchers";	3687	warn "flushing outstanding aio requests";
2329	for (Event::all_watchers) {	3688	while (IO::AIO::nreqs || BDB::nreqs) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3689	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();
2336
2337	warn "remove commands";
2338	%COMMAND = ();
2339
2340	warn "remove ext commands";
2341	%EXTCMD = ();
2342
2343	warn "unload/nuke all extensions";
2344	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";
2346
2347	if (my $cb = $pkg->can ("unload")) {
2348	eval {
2349	$cb->($pkg);
2350	1
2351	} or warn "$pkg unloaded, but with errors: $@";
2352	}	3690	}
2353		3691
		3692	warn "cancelling all extension coros";
		3693	$_->cancel for values %EXT_CORO;
		3694	%EXT_CORO = ();
		3695
		3696	warn "removing commands";
		3697	%COMMAND = ();
		3698
		3699	warn "removing ext/exti commands";
		3700	%EXTCMD = ();
		3701	%EXTICMD = ();
		3702
		3703	warn "unloading/nuking all extensions";
		3704	for my $pkg (@EXTS) {
2354	warn "... nuking $pkg";	3705	warn "... unloading $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357		3706
2358	warn "unload all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361
2362	warn "removing <$k>";
2363	delete $INC{$k};
2364
2365	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;
2367
2368	if (my $cb = $k->can ("unload_module")) {	3707	if (my $cb = $pkg->can ("unload")) {
		3708	eval {
2369	$cb->();	3709	$cb->($pkg);
		3710	1
		3711	} or warn "$pkg unloaded, but with errors: $@";
		3712	}
		3713
		3714	warn "... clearing $pkg";
		3715	clear_package $pkg;
2370	}	3716	}
2371		3717
2372	Symbol::delete_package $k;	3718	warn "unloading all perl modules loaded from $LIBDIR";
		3719	while (my ($k, $v) = each %INC) {
		3720	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3721
		3722	warn "... unloading $k";
		3723	delete $INC{$k};
		3724
		3725	$k =~ s/\.pm$//;
		3726	$k =~ s/\//::/g;
		3727
		3728	if (my $cb = $k->can ("unload_module")) {
		3729	$cb->();
		3730	}
		3731
		3732	clear_package $k;
2373	}	3733	}
2374		3734
2375	warn "get rid of safe::, as good as possible";	3735	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3736	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3737	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3738
2379	warn "unload cf.pm \"a bit\"";	3739	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3740	delete $INC{"cf.pm"};
		3741	delete $INC{"cf/pod.pm"};
2381		3742
2382	# don't, removes xs symbols, too,	3743	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3744	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3745	#clear_package __PACKAGE__;
2385		3746
		3747	warn "unload completed, starting to reload now";
		3748
2386	warn "reloading cf.pm";	3749	warn "reloading cf.pm";
2387	require cf;	3750	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3751	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3752
2390	warn "load config and database again";	3753	warn "loading config and database again";
2391	cf::cfg_load;	3754	cf::reload_config;
2392	cf::db_load;
2393		3755
2394	warn "load extensions";	3756	warn "loading extensions";
2395	cf::load_extensions;	3757	cf::load_extensions;
2396		3758
		3759	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	3760	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3761	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3762	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3763	reattach $_ for values %MAP;
		3764	warn "reattaching attachments to players";
		3765	reattach $_ for values %PLAYER;
		3766	}
		3767
		3768	warn "running post_init jobs";
		3769	(pop @POST_INIT)->(1) while @POST_INIT;
		3770
		3771	warn "leaving sync_job";
		3772
		3773	1
		3774	} or do {
		3775	warn $@;
		3776	cf::cleanup "error while reloading, exiting.";
		3777	};
		3778
		3779	warn "reloaded";
		3780	--$RELOAD;
		3781	}
		3782
		3783	$t1 = EV::time - $t1;
		3784	warn "reload completed in ${t1}s\n";
		3785	};
		3786
		3787	our $RELOAD_WATCHER; # used only during reload
		3788
		3789	sub reload_perl() {
		3790	# doing reload synchronously and two reloads happen back-to-back,
		3791	# coro crashes during coro_state_free->destroy here.
		3792
		3793	$RELOAD_WATCHER ||= cf::async {
		3794	Coro::AIO::aio_wait cache_extensions;
		3795
		3796	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3797	do_reload_perl;
		3798	undef $RELOAD_WATCHER;
		3799	};
2401	};	3800	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3801	}
2454		3802
2455	register_command "reload" => sub {	3803	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3804	my ($who, $arg) = @_;
2457		3805
2458	if ($who->flag (FLAG_WIZ)) {	3806	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3807	$who->message ("reloading server.");
		3808	async {
		3809	$Coro::current->{desc} = "perl_reload";
		3810	reload_perl;
		3811	};
2462	}	3812	}
2463	};	3813	};
2464		3814
2465	unshift @INC, $LIBDIR;	3815	unshift @INC, $LIBDIR;
2466		3816
2467	$TICK_WATCHER = Event->timer (	3817	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		3818
		3819	our @WAIT_FOR_TICK;
		3820	our @WAIT_FOR_TICK_BEGIN;
		3821
		3822	sub wait_for_tick {
		3823	return if tick_inhibit || $Coro::current == $Coro::main;
		3824
		3825	my $signal = new Coro::Signal;
		3826	push @WAIT_FOR_TICK, $signal;
		3827	$signal->wait;
		3828	}
		3829
		3830	sub wait_for_tick_begin {
		3831	return if tick_inhibit || $Coro::current == $Coro::main;
		3832
		3833	my $signal = new Coro::Signal;
		3834	push @WAIT_FOR_TICK_BEGIN, $signal;
		3835	$signal->wait;
		3836	}
		3837
		3838	sub tick {
		3839	if ($Coro::current != $Coro::main) {
		3840	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3841	unless ++$bug_warning > 10;
		3842	return;
		3843	}
		3844
2475	cf::server_tick; # one server iteration	3845	cf::server_tick; # one server iteration
2476	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;
2478		3846
2479	$WAIT_FOR_TICK->broadcast;	3847	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3848	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2481		3849	Coro::async_pool {
2482	# if we are delayed by four ticks or more, skip them all	3850	$Coro::current->{desc} = "runtime saver";
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2484
2485	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;
2487	},
2488	);
2489
2490	IO::AIO::max_poll_time $TICK * 0.2;
2491
2492	Event->io (
2493	fd => IO::AIO::poll_fileno,
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,
2502	after => 0,
2503	interval => 10,
2504	cb => sub {
2505	(Coro::unblock_sub {
2506	write_runtime	3851	write_runtime_sync
2507	or warn "ERROR: unable to write runtime file: $!";	3852	or warn "ERROR: unable to write runtime file: $!";
2508	})->();	3853	};
2509	},	3854	}
2510	);	3855
		3856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3857	$sig->send;
		3858	}
		3859	while (my $sig = shift @WAIT_FOR_TICK) {
		3860	$sig->send;
		3861	}
		3862
		3863	$LOAD = ($NOW - $TICK_START) / $TICK;
		3864	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3865
		3866	if (0) {
		3867	if ($NEXT_TICK) {
		3868	my $jitter = $TICK_START - $NEXT_TICK;
		3869	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3870	warn "jitter $JITTER\n";#d#
		3871	}
		3872	}
		3873	}
		3874
		3875	{
		3876	# configure BDB
		3877
		3878	BDB::min_parallel 8;
		3879	BDB::max_poll_reqs $TICK * 0.1;
		3880	$AnyEvent::BDB::WATCHER->priority (1);
		3881
		3882	unless ($DB_ENV) {
		3883	$DB_ENV = BDB::db_env_create;
		3884	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3885	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3886	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3887	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3888	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3889
		3890	cf::sync_job {
		3891	eval {
		3892	BDB::db_env_open
		3893	$DB_ENV,
		3894	$BDBDIR,
		3895	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3896	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3897	0666;
		3898
		3899	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3900	};
		3901
		3902	cf::cleanup "db_env_open(db): $@" if $@;
		3903	};
		3904	}
		3905
		3906	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3907	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3908	};
		3909	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3910	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3911	};
		3912	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3913	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3914	};
		3915	}
		3916
		3917	{
		3918	# configure IO::AIO
		3919
		3920	IO::AIO::min_parallel 8;
		3921	IO::AIO::max_poll_time $TICK * 0.1;
		3922	undef $AnyEvent::AIO::WATCHER;
		3923	}
		3924
		3925	my $_log_backtrace;
		3926
		3927	sub _log_backtrace {
		3928	my ($msg, @addr) = @_;
		3929
		3930	$msg =~ s/\n//;
		3931
		3932	# limit the # of concurrent backtraces
		3933	if ($_log_backtrace < 2) {
		3934	++$_log_backtrace;
		3935	my $perl_bt = Carp::longmess $msg;
		3936	async {
		3937	$Coro::current->{desc} = "abt $msg";
		3938
		3939	my @bt = fork_call {
		3940	@addr = map { sprintf "%x", $_ } @addr;
		3941	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3942	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3943	or die "addr2line: $!";
		3944
		3945	my @funcs;
		3946	my @res = <$fh>;
		3947	chomp for @res;
		3948	while (@res) {
		3949	my ($func, $line) = splice @res, 0, 2, ();
		3950	push @funcs, "[$func] $line";
		3951	}
		3952
		3953	@funcs
		3954	};
		3955
		3956	LOG llevInfo, "[ABT] $perl_bt\n";
		3957	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3958	LOG llevInfo, "[ABT] $_\n" for @bt;
		3959	--$_log_backtrace;
		3960	};
		3961	} else {
		3962	LOG llevInfo, "[ABT] $msg\n";
		3963	LOG llevInfo, "[ABT] [suppressed]\n";
		3964	}
		3965	}
		3966
		3967	# load additional modules
		3968	use cf::pod;
2511		3969
2512	END { cf::emergency_save }	3970	END { cf::emergency_save }
2513		3971
2514	1	3972	1
2515		3973

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