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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.186 by root, Sat Jan 20 01:12:39 2007 UTC vs.
Revision 1.530 by root, Wed Apr 28 21:05:33 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.4 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
53		130
54	our %CFG;	131	our %CFG;
55		132
56	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
58		136
59	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		140
67	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
		153
70	binmode STDOUT;	154	binmode STDOUT;
71	binmode STDERR;	155	binmode STDERR;
72		156
73	# read virtual server time, if available	157	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
78	}	162	}
79		163
80	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	165
82	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		168
86	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		187
88	#############################################################################	188	#############################################################################
89		189
90	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
91		191
…		…
98	=item $cf::RUNTIME	198	=item $cf::RUNTIME
99		199
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	201	every server tick.
102		202
103	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		206
105	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
107		211
108	=item $cf::NOW	212	=item $cf::NOW
109		213
110	The time of the last (current) server tick.	214	The time of the last (current) server tick.
111		215
112	=item $cf::TICK	216	=item $cf::TICK
113		217
114	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
115		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
116	=item %cf::CFG	230	=item %cf::CFG
117		231
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	233	from wherever your confdir points to.
120		234
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		236
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
127		252
128	=back	253	=back
129		254
130	=cut	255	=cut
131		256
132	BEGIN {	257	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	258	my $msg = join "", @_;
135	utf8::encode $msg;
136		259
137	$msg .= "\n"	260	$msg .= "\n"
138	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
139		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
140	LOG llevError, $msg;	265	LOG llevError, $msg;
141	};	266	};
142	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
143		281
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		289
151	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	291	# within the Safe compartment.
153	for my $pkg (qw(	292	for my $pkg (qw(
154	cf::global cf::attachable	293	cf::global cf::attachable
155	cf::object cf::object::player	294	cf::object cf::object::player
156	cf::client cf::player	295	cf::client cf::player
157	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
158	cf::map cf::party cf::region	298	cf::party cf::region
159	)) {	299	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	301	}
163		302
164	$Event::DIED = sub {	303	$EV::DIED = sub {
165	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
166	};	305	};
		306
		307	#############################################################################
167		308
168	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
169		310
170	=over 4	311	=over 4
171		312
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	332	$d
192	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
193	}	334	}
194		335
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
198		337
199	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
200		339
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
209		341
210	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
211		343
212	=cut	344	=cut
213		345
214	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
216	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
217	}	363	}
218		364
219	=item cf::lock_wait $string	365	=item cf::lock_wait $string
220		366
221	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
222		368
223	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
224		370
225	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
228	returned.	374	returned.
229		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
230	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
232		381
233	=cut	382	=item $locked = cf::lock_active $string
234		383
235	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
236		389
237	sub lock_wait($) {	390	sub lock_wait($) {
238	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	392	}
246		393
247	sub lock_acquire($) {	394	sub lock_acquire($) {
248	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
249		397
250	# wait, to be sure we are not locked	398	sub lock_active($) {
251	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	400	}
260		401
261	sub freeze_mainloop {	402	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
263		404
264	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	406	}
266	$WRITE_RUNTIME_WATCHER->start;	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
267	};	472	}
268	$WRITE_RUNTIME_WATCHER->stop;	473	};
269	$TICK_WATCHER->stop;	474
270	$guard	475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
271	}	488	}
272		489
273	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
274		491
275	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		497
281	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
282		499
283	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
284		501
285	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
288		506
289	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
292	fast or be very important.	510	fast or be very important.
…		…
295		513
296	sub sync_job(&) {	514	sub sync_job(&) {
297	my ($job) = @_;	515	my ($job) = @_;
298		516
299	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
300	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
302		522
303	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	524
305	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
306		526
307	my $busy = 1;	527	my $busy = 1;
308	my @res;	528	my @res;
309		529
310	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	532	@res = eval { $job->() };
312	warn $@ if $@;	533	warn $@ if $@;
313	undef $busy;	534	undef $busy;
314	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
315		536
316	while ($busy) {	537	while ($busy) {
317	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
318	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
319		548
320	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
321	} else {	550	} else {
322	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
323		552
…		…
343	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
344		573
345	$coro	574	$coro
346	}	575	}
347		576
348	sub write_runtime {	577	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		578
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
352	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
353		583
354	my $value = $cf::RUNTIME + 90 + 10;	584	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		585
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	sub fork_call(&@) {
359	and return;	587	my ($cb, @args) = @_;
360		588
361	aio_fsync $fh	589	# we seemingly have to make a local copy of the whole thing,
362	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
363		592
364	close $fh	593	my @res = Coro::Util::fork_eval {
365	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
366		597
367	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
368	and return;	599	}
369		600
		601	sub objinfo {
370	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	775	}
372		776
373	=back	777	=back
374		778
375	=cut	779	=cut
376		780
377	#############################################################################	781	#############################################################################
378		782
379	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
380		784
381	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
384		788
385	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	791	Deliantra).
388		792
389	=over 4	793	=over 4
390		794
391	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
392		796
…		…
436	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
437		841
438	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
440		844
441	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
443		847
444	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
445		849
446	=over 4	850	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
556		960
557	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		965
562	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	967	my $pkg = shift @arg;
564		968
565	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
595	}	999	}
596		1000
597	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
598	} else {	1002	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	1004	}
601		1005
602	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
603	}	1007	}
604		1008
…		…
606	if (ref $_[0]) {	1010	if (ref $_[0]) {
607	_object_attach @_;	1011	_object_attach @_;
608	} else {	1012	} else {
609	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
610	}	1014	}
		1015	_recalc_want;
611	};	1016	};
612		1017
613	# all those should be optimised	1018	# all those should be optimised
614	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
619	reattach ($obj);	1024	reattach ($obj);
620	} else {	1025	} else {
621	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
622	}	1027	}
		1028	_recalc_want;
623	};	1029	};
624		1030
625	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
627		1033
…		…
642	";	1048	";
643	die if $@;	1049	die if $@;
644	}	1050	}
645		1051
646	our $override;	1052	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1054
649	sub override {	1055	sub override {
650	$override = 1;	1056	$override = 1;
651	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
652	}	1058	}
653		1059
654	sub do_invoke {	1060	sub do_invoke {
655	my $event = shift;	1061	my $event = shift;
656	my $callbacks = shift;	1062	my $callbacks = shift;
657		1063
658	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
659		1065
660	local $override;	1066	local $override;
661		1067
662	for (@$callbacks) {	1068	for (@$callbacks) {
663	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
672	}	1078	}
673		1079
674	0	1080	0
675	}	1081	}
676		1082
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1084
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1086
681	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
682		1088
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1092
687	=back	1093	=back
688		1094
689	=cut	1095	=cut
690		1096
691	#############################################################################	1097	#############################################################################
692	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
693		1141
694	sub reattach {	1142	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1144	my ($obj) = @_;
697		1145
		1146	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1148
700	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
701		1150
702	@$registry = ();	1151	@$registry = ();
703		1152
…		…
718	cf::attachable->attach (	1167	cf::attachable->attach (
719	prio => -1000000,	1168	prio => -1000000,
720	on_instantiate => sub {	1169	on_instantiate => sub {
721	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
722		1171
723	$data = from_json $data;	1172	$data = decode_json $data;
724		1173
725	for (@$data) {	1174	for (@$data) {
726	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
727		1176
728	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1193	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
746		1195
747	sync_job {	1196	sync_job {
748	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
751		1202
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
755	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
756	close $fh;	1210	aio_close $fh;
757		1211
758	if (@$objs) {	1212	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
764	close $fh;	1221	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
766	}	1223	}
767	} else {	1224	} else {
768	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
769	}	1226	}
770		1227
771	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1232	} else {
773	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
774	}	1234	}
775	} else {	1235	} else {
776	aio_unlink $filename;	1236	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
778	}	1238	}
779	}	1239	};
780	}	1240	}
781		1241
782	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
784		1244
…		…
796	or return;	1256	or return;
797		1257
798	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
800	or return;	1260	or return;
		1261
801	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
802	}	1264	}
803		1265
		1266	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
806	return ($data, $av);	1271	($data, $av)
807	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
808		1279
809	#############################################################################	1280	#############################################################################
810	# command handling &c	1281	# command handling &c
811		1282
812	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1297	}
827		1298
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1300
830	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
831		1306
832	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
833	called.	1308	called.
834		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
835	=cut	1321	=cut
836		1322
837	sub register_extcmd {	1323	sub register_extcmd {
838	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
839		1325
840	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
841	}	1327	}
842		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
843	cf::player->attach (	1337	cf::player->attach (
844	on_command => sub {	1338	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
846		1340
847	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
848	or return;	1342	or return;
849		1343
…		…
854	cf::override;	1348	cf::override;
855	},	1349	},
856	on_extcmd => sub {	1350	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
858		1352
859	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1354
861	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
867	} else {	1370	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1372	}
870		1373
871	cf::override;	1374	cf::override;
872	},	1375	},
873	);	1376	);
874		1377
		1378	# "readahead" all extensions
875	sub load_extension {	1379	sub cache_extensions {
876	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
877		1381
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1385	}
903	die $@;
904	}	1386	};
905		1387
906	push @EXTS, $pkg;	1388	$grp
907	}	1389	}
908		1390
909	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
910	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1396	next unless -r $path;
912	eval {	1397
913	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
914	1	1461	}
915	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
916	}	1472	};
917	}	1473	}
918		1474
919	#############################################################################	1475	#############################################################################
920		1476
		1477	=back
		1478
921	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
922		1480
923	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
924		1482
925	=cut	1483	=cut
926		1484
927	package cf::player;	1485	package cf::player;
928		1486
…		…
930		1488
931	=head3 cf::player	1489	=head3 cf::player
932		1490
933	=over 4	1491	=over 4
934		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
935	=item cf::player::find $login	1507	=item cf::player::find $login
936		1508
937	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
938		1510
939	=cut	1511	=cut
940		1512
941	sub playerdir($) {	1513	sub playerdir($) {
942	cf::localdir	1514	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1516	}
948		1517
949	sub path($) {	1518	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1520
952	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
953	}	1522	}
954		1523
955	sub find_active($) {	1524	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
960		1529
961	sub exists($) {	1530	sub exists($) {
962	my ($login) = @_;	1531	my ($login) = @_;
963		1532
964	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
966	}	1535	}
967		1536
968	sub find($) {	1537	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1539	my $login = $_[0];
971		1540
972	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
973		1542
974	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
976	or return;	1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
978	}	1560	}
979	}	1561	}
980	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
981		1576
982	sub save($) {	1577	sub save($) {
983	my ($pl) = @_;	1578	my ($pl) = @_;
984		1579
985	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
990	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
991		1586
992	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
994		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
995	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
996	Coro::cede;	1596	cf::cede_to_tick;
997	}	1597	}
998		1598
999	sub new($) {	1599	sub new($) {
1000	my ($login) = @_;	1600	my ($login) = @_;
1001		1601
…		…
1007	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1008		1608
1009	$self	1609	$self
1010	}	1610	}
1011		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
1012	=item $pl->quit_character	1622	=item $pl->quit_character
1013		1623
1014	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1016		1626
1017	=cut	1627	=cut
1018		1628
1019	sub quit_character {	1629	sub quit_character {
1020	my ($pl) = @_;	1630	my ($pl) = @_;
1021		1631
		1632	my $name = $pl->ob->name;
		1633
1022	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1636
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1029		1642
1030	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1035	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1036	}	1669	}
1037		1670
1038	=item cf::player::list_logins	1671	=item cf::player::list_logins
1039		1672
1040	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1042		1675
1043	=cut	1676	=cut
1044		1677
1045	sub list_logins {	1678	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1680	or return [];
1048		1681
1049	my @logins;	1682	my @logins;
1050		1683
1051	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1055		1694
1056	utf8::decode $login;	1695	utf8::decode $login;
1057	push @logins, $login;	1696	push @logins, $login;
1058	}	1697	}
1059		1698
1060	\@logins	1699	\@logins
1061	}	1700	}
1062		1701
1063	=item $player->maps	1702	=item $player->maps
1064		1703
		1704	=item cf::player::maps $login
		1705
1065	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1066	player. May block.	1707	player. May block.
1067		1708
1068	=cut	1709	=cut
1069		1710
1070	sub maps($) {	1711	sub maps($) {
1071	my ($pl) = @_;	1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1715
1073	my $files = aio_readdir playerdir $pl	1716	my $files = aio_readdir playerdir $pl
1074	or return;	1717	or return;
1075		1718
1076	my @paths;	1719	my @paths;
…		…
1078	for (@$files) {	1721	for (@$files) {
1079	utf8::decode $_;	1722	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1723	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1724	next unless /^$PATH_SEP/o;
1082		1725
1083	s/\.map$//;	1726	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1727	}
1086		1728
1087	\@paths	1729	\@paths
1088	}	1730	}
1089		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1091		1737
1092	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1093		1739
1094	=cut	1740	=cut
1095		1741
1096	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1098		1744
1099	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1746	}
1103		1747
1104	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1105		1790
1106	=back	1791	=back
1107
1108		1792
1109	=head3 cf::map	1793	=head3 cf::map
1110		1794
1111	=over 4	1795	=over 4
1112		1796
…		…
1124	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1126		1810
1127	sub generate_random_map {	1811	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1129	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1817	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1827	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region}), $rmp->{custom}	1828	(cf::region::find $rmp->{region}), $rmp->{custom}
1142	)	1829	)
1143	}	1830	}
1144		1831
		1832	=item cf::map->register ($regex, $prio)
		1833
		1834	Register a handler for the map path matching the given regex at the
		1835	givne priority (higher is better, built-in handlers have priority 0, the
		1836	default).
		1837
		1838	=cut
		1839
1145	sub register {	1840	sub register {
1146	my (undef, $regex) = @_;	1841	my (undef, $regex, $prio) = @_;
1147	my $pkg = caller;	1842	my $pkg = caller;
1148		1843
1149	no strict;	1844	no strict;
1150	push @{"$pkg\::ISA"}, __PACKAGE__;	1845	push @{"$pkg\::ISA"}, __PACKAGE__;
1151		1846
1152	$EXT_MAP{$pkg} = qr<$regex>;	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1153	}	1848	}
1154		1849
1155	# also paths starting with '/'	1850	# also paths starting with '/'
1156	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1157		1852
1158	sub thawer_merge {	1853	sub thawer_merge {
1159	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1160		1855
1161	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1162	local $self->{path};	1857	local $self->{path};
1163	local $self->{load_path};	1858	local $self->{load_path};
1164	local $self->{deny_save};
1165	local $self->{deny_reset};
1166		1859
1167	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1168	}	1861	}
1169		1862
1170	sub normalise {	1863	sub normalise {
1171	my ($path, $base) = @_;	1864	my ($path, $base) = @_;
		1865
		1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
1172		1869
1173	# map plan:	1870	# map plan:
1174	#	1871	#
1175	# /! non-realised random map exit (special hack!)	1872	# /! non-realised random map exit (special hack!)
1176	# {... are special paths that are not being touched	1873	# {... are special paths that are not being touched
…		…
1204		1901
1205	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1902	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1206		1903
1207	$path = normalise $path, $base;	1904	$path = normalise $path, $base;
1208		1905
1209	for my $pkg (keys %EXT_MAP) {	1906	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1210	if ($path =~ $EXT_MAP{$pkg}) {	1907	if ($path =~ $EXT_MAP{$pkg}[1]) {
1211	my $self = bless cf::map::new, $pkg;	1908	my $self = bless cf::map::new, $pkg;
1212	$self->{path} = $path; $self->path ($path);	1909	$self->{path} = $path; $self->path ($path);
1213	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1214	return $self;	1911	return $self;
1215	}	1912	}
1216	}	1913	}
1217		1914
1218	Carp::carp "unable to resolve path '$path'.";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1219	()	1916	()
1220	}	1917	}
1221		1918
1222	sub init {	1919	sub init {
1223	my ($self) = @_;	1920	my ($self) = @_;
…		…
1238		1935
1239	# the original (read-only) location	1936	# the original (read-only) location
1240	sub load_path {	1937	sub load_path {
1241	my ($self) = @_;	1938	my ($self) = @_;
1242		1939
1243	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1244	}	1941	}
1245		1942
1246	# the temporary/swap location	1943	# the temporary/swap location
1247	sub save_path {	1944	sub save_path {
1248	my ($self) = @_;	1945	my ($self) = @_;
1249		1946
1250	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1251	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1252	}	1949	}
1253		1950
1254	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1255	sub uniq_path {	1952	sub uniq_path {
1256	my ($self) = @_;	1953	my ($self) = @_;
1257		1954
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1260	}	1957	}
1261		1958
1262	# and all this just because we cannot iterate over	1959	sub decay_objects {
1263	# all maps in C++...
1264	sub change_all_map_light {
1265	my ($change) = @_;	1960	my ($self) = @_;
1266		1961
1267	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1268	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1269	}	1965	}
1270		1966
1271	sub unlink_save {	1967	sub unlink_save {
1272	my ($self) = @_;	1968	my ($self) = @_;
1273		1969
…		…
1278		1974
1279	sub load_header_from($) {	1975	sub load_header_from($) {
1280	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1281		1977
1282	utf8::encode $path;	1978	utf8::encode $path;
1283	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1284	or return;	1980	or return;
1285		1981
1286	$self->_load_header ($path)	1982	$self->_load_header ($f)
1287	or return;	1983	or return;
1288		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
		1987
1289	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1290		1989
1291	1	1990	1
1292	}	1991	}
1293		1992
1294	sub load_orig {	1993	sub load_header_orig {
1295	my ($self) = @_;	1994	my ($self) = @_;
1296		1995
1297	$self->load_header_from ($self->load_path)	1996	$self->load_header_from ($self->load_path)
1298	}	1997	}
1299		1998
1300	sub load_temp {	1999	sub load_header_temp {
1301	my ($self) = @_;	2000	my ($self) = @_;
1302		2001
1303	$self->load_header_from ($self->save_path)	2002	$self->load_header_from ($self->save_path)
		2003	}
		2004
		2005	sub prepare_temp {
		2006	my ($self) = @_;
		2007
		2008	$self->last_access ((delete $self->{last_access})
		2009	|| $cf::RUNTIME); #d#
		2010	# safety
		2011	$self->{instantiate_time} = $cf::RUNTIME
		2012	if $self->{instantiate_time} > $cf::RUNTIME;
		2013	}
		2014
		2015	sub prepare_orig {
		2016	my ($self) = @_;
		2017
		2018	$self->{load_original} = 1;
		2019	$self->{instantiate_time} = $cf::RUNTIME;
		2020	$self->last_access ($cf::RUNTIME);
		2021	$self->instantiate;
1304	}	2022	}
1305		2023
1306	sub load_header {	2024	sub load_header {
1307	my ($self) = @_;	2025	my ($self) = @_;
1308		2026
1309	if ($self->load_temp) {	2027	if ($self->load_header_temp) {
1310	$self->last_access ((delete $self->{last_access})	2028	$self->prepare_temp;
1311	|| $cf::RUNTIME); #d#
1312	# safety
1313	$self->{instantiate_time} = $cf::RUNTIME
1314	if $self->{instantiate_time} > $cf::RUNTIME;
1315	} else {	2029	} else {
1316	$self->load_orig	2030	$self->load_header_orig
1317	or return;	2031	or return;
1318		2032	$self->prepare_orig;
1319	$self->{load_original} = 1;
1320	$self->{instantiate_time} = $cf::RUNTIME;
1321	$self->last_access ($cf::RUNTIME);
1322	$self->instantiate;
1323	}	2033	}
		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
1324		2040
1325	1	2041	1
1326	}	2042	}
1327		2043
1328	sub find;	2044	sub find;
1329	sub find {	2045	sub find {
1330	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1331		2047
1332	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1333		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1334	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1335		2052
1336	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1337	my $guard = cf::lock_acquire "map_find:$path";
1338	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1339	or return;	2055	or return;
1340		2056
1341	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1342		2058
1343	$map->load_header	2059	$map->load_header
1344	or return;	2060	or return;
1345		2061
1346	if ($map->should_reset) {	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1347	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1348	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1349	$map->reset;	2067	$map->reset;
1350	undef $guard;
1351	$map = find $path	2068	return find $path;
1352	or return;
1353	}	2069	}
1354		2070
1355	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1356	}	2072	}
1357	}	2073	}
		2074
		2075	sub pre_load { }
		2076	#sub post_load { } # XS
1358		2077
1359	sub load {	2078	sub load {
1360	my ($self) = @_;	2079	my ($self) = @_;
1361		2080
		2081	local $self->{deny_reset} = 1; # loading can take a long time
		2082
1362	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1363	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1364		2087
		2088	return unless $self->valid;
1365	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1366		2090
1367	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1368		2092
1369	$self->alloc;	2093	$self->alloc;
1370	$self->_load_objects ($self->{load_path}, 1)	2094
		2095	$self->pre_load;
		2096	cf::cede_to_tick;
		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1371	or return;	2101	or return;
1372		2102
1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1374	if delete $self->{load_original};	2104	if delete $self->{load_original};
1375		2105
1376	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1377	utf8::encode $uniq;	2107	utf8::encode $uniq;
1378	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1379	$self->clear_unique_items;	2110	$self->clear_unique_items;
1380	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1381	}	2114	}
1382	}	2115	}
1383		2116
1384	Coro::cede;	2117	$f->resolve_delayed_derefs;
1385		2118
		2119	cf::cede_to_tick;
1386	# now do the right thing for maps	2120	# now do the right thing for maps
1387	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1388
1389	unless ($self->{deny_activate}) {
1390	$self->decay_objects;
1391	$self->fix_auto_apply;
1392	$self->update_buttons;
1393	Coro::cede;
1394	$self->set_darkness_map;
1395	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1396	unless $self->difficulty;	2123	unless $self->difficulty;
1397	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1398	$self->activate;	2131	$self->activate;
1399	}	2132	}
1400		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1401	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1402	}	2138	}
1403		2139
		2140	$self->post_load;
		2141	}
		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1404	sub customise_for {	2146	sub customise_for {
1405	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1406		2148
1407	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1408	if $self->per_player;	2150	if $self->per_player;
1409		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1410	$self	2155	$self
1411	}	2156	}
1412		2157
1413	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1414	sub load_diag {	2159	sub load_neighbours {
1415	my ($map) = @_;	2160	my ($map) = @_;
1416		2161
1417	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1418		2163
1419	for (0 .. 3) {	2164	for (0 .. 3) {
1420	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1421	or next;	2166	or next;
1422	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1423	or next;	2168	or next;
1424	$neigh->load;	2169	$neigh->load;
1425		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1426	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1427	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1428	}	2175	}
1429		2176
1430	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1431	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1432	or next;	2180	or next;
1433	$neigh->load;	2181	$neigh->load;
1434	}	2182	}
1435	}	2183	}
1436		2184
…		…
1441	}	2189	}
1442		2190
1443	sub do_load_sync {	2191	sub do_load_sync {
1444	my ($map) = @_;	2192	my ($map) = @_;
1445		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1446	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1447	}	2198	}
1448		2199
1449	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1450	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1451		2202
1452	sub find_async {	2203	sub find_async {
1453	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1454		2205
1455	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1456		2207
1457	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1459	}	2210	}
1460		2211
1461	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1462	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1463	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1464	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1465	my $map = find $path	2219	if (my $map = find $k) {
1466	or next;
1467	$map->load;	2220	$map->load if $v;
		2221	}
1468		2222
1469	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1470	}	2224	}
1471	}	2225	}
1472	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1473	};	2227	};
		2228	$MAP_PREFETCHER->prio (6);
1474		2229
1475	()	2230	()
1476	}	2231	}
1477		2232
		2233	# common code, used by both ->save and ->swapout
1478	sub save {	2234	sub _save {
1479	my ($self) = @_;	2235	my ($self) = @_;
1480
1481	my $lock = cf::lock_acquire "map_data:" . $self->path;
1482		2236
1483	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1484		2238
1485	return unless $self->dirty;	2239	return unless $self->dirty;
1486		2240
…		…
1492	return if $self->{deny_save};	2246	return if $self->{deny_save};
1493		2247
1494	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1495		2249
1496	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1497	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1498	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1499		2256
1500	if ($uniq) {	2257	if ($uniq) {
1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1503	} else {	2260	} else {
1504	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1505	}	2262	}
1506	}	2263	}
1507		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1508	sub swap_out {	2273	sub swap_out {
1509	my ($self) = @_;	2274	my ($self) = @_;
1510		2275
1511	# save first because save cedes
1512	$self->save;
1513
1514	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1515		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1516	return if $self->players;	2280	return if $self->players;
1517	return if $self->in_memory != cf::MAP_IN_MEMORY;
1518	return if $self->{deny_save};
1519		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1520	$self->clear;	2291	$self->clear;
1521	$self->in_memory (cf::MAP_SWAPPED);
1522	}	2292	}
1523		2293
1524	sub reset_at {	2294	sub reset_at {
1525	my ($self) = @_;	2295	my ($self) = @_;
1526		2296
1527	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
1529	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1530		2299
1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1533		2302
…		…
1544	my ($self) = @_;	2313	my ($self) = @_;
1545		2314
1546	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1547		2316
1548	return if $self->players;	2317	return if $self->players;
1549	return if $self->isa ("ext::map_per_player");#d#
1550		2318
1551	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1552		2330
1553	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1554		2332
1555	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1556	$self->clear;	2335	$self->clear;
1557
1558	$_->clear_links_to ($self) for values %cf::MAP;
1559		2336
1560	$self->unlink_save;	2337	$self->unlink_save;
1561	$self->destroy;	2338	$self->destroy;
1562	}	2339	}
1563		2340
1564	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1565		2342
1566	sub nuke {	2343	sub nuke {
1567	my ($self) = @_;	2344	my ($self) = @_;
1568		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1569	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1570		2350
1571	$self->unlink_save;	2351	$self->unlink_save;
1572		2352
1573	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1574	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1575	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1576	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1578		2358
1579	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1580		2361
1581	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1582	}	2399	}
1583		2400
1584	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1585		2402
1586	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1587	instantiated unique items. May block.	2404	instantiated unique items. May block.
1588		2405
1589	=cut	2406	=cut
1590		2407
1591	sub unique_maps() {	2408	sub unique_maps() {
1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1593	or return;	2410	map {
1594
1595	my @paths;
1596
1597	for (@$files) {
1598	utf8::decode $_;	2411	utf8::decode $_;
1599	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1600	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
1601		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
1602	s/\.map$//;	2441	s/\.map$// or next;
1603	push @paths, $_;	2442	utf8::decode $_;
1604	}	2443	push @maps, "$dir/$_";
		2444	}
1605		2445
1606	\@paths	2446	push @dirs, map "$dir/$_", @$dirs;
1607	}	2447	}
1608		2448
1609	package cf;	2449	\@maps
		2450	}
1610		2451
1611	=back	2452	=back
1612		2453
1613	=head3 cf::object	2454	=head3 cf::object
1614		2455
…		…
1618		2459
1619	=over 4	2460	=over 4
1620		2461
1621	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1622		2463
1623	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1624		2466
1625	=cut	2467	=cut
1626		2468
1627	sub inv_recursive_;	2469	sub inv_recursive_;
1628	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1631		2473
1632	sub inv_recursive {	2474	sub inv_recursive {
1633	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1634	}	2476	}
1635		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1636	package cf;	2506	package cf;
1637		2507
1638	=back	2508	=back
1639		2509
1640	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1646	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1647	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1648	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1649		2519
1650	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1651		2535
1652	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1653	# with dialog boxes.	2537	# with dialog boxes.
1654	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1655	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1657		2541
1658	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1659		2543
1660	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1661	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1662	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1663	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1664	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1665	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1666	}	2569	}
1667		2570
1668	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1669		2572
1670	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1683		2586
1684	=item $player_object->enter_link	2587	=item $player_object->enter_link
1685		2588
1686	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1687		2590
1688	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1689	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1690		2595
1691	Will never block.	2596	Will never block.
1692		2597
1693	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1694		2599
…		…
1702	=cut	2607	=cut
1703		2608
1704	sub link_map {	2609	sub link_map {
1705	unless ($LINK_MAP) {	2610	unless ($LINK_MAP) {
1706	$LINK_MAP = cf::map::find "{link}"	2611	$LINK_MAP = cf::map::find "{link}"
1707	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2612	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1708	$LINK_MAP->load;	2613	$LINK_MAP->load;
1709	}	2614	}
1710		2615
1711	$LINK_MAP	2616	$LINK_MAP
1712	}	2617	}
…		…
1714	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1715	my ($self) = @_;	2620	my ($self) = @_;
1716		2621
1717	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1718		2623
		2624	++$self->{_link_recursion};
		2625
1719	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1720		2627
1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1722	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1723		2630
1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1725	}	2632	}
1726		2633
1727	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1728	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1729		2638
1730	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1731		2640
1732	unless ($map) {	2641	unless ($map) {
1733	# restore original map position	2642	# restore original map position
…		…
1744	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1745	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1746		2655
1747	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1748	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1749	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1750		2659
1751	$map->load;	2660	$map->load;
1752	$map->load_diag;	2661	$map->load_neighbours;
1753		2662
1754	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1755	$self->activate_recursive;	2670	$self->activate_recursive;
1756	$self->enter_map ($map, $x, $y);
1757	}
1758
1759	cf::player->attach (
1760	on_logout => sub {
1761	my ($pl) = @_;
1762
1763	# abort map switching before logout
1764	if ($pl->ob->{_link_pos}) {
1765	cf::sync_job {
1766	$pl->ob->leave_link
1767	};
1768	}
1769	},	2671	}
1770	on_login => sub {
1771	my ($pl) = @_;
1772		2672
1773	# try to abort aborted map switching on player login :)	2673	}
1774	# should happen only on crashes
1775	if ($pl->ob->{_link_pos}) {
1776	$pl->ob->enter_link;
1777	(async {
1778	# we need this sleep as the login has a concurrent enter_exit running
1779	# and this sleep increases chances of the player not ending up in scorn
1780	$pl->ob->reply (undef,
1781	"There was an internal problem at your last logout, "
1782	. "the server will try to bring you to your intended destination in a second.",
1783	cf::NDI_RED);
1784	Coro::Timer::sleep 1;
1785	$pl->ob->leave_link;
1786	})->prio (2);
1787	}
1788	},
1789	);
1790		2674
1791	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1792		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1793	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1794		2689
1795	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1796	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1797		2701
1798	$self->enter_link;	2702	$self->enter_link;
1799		2703
1800	(async {	2704	(async {
1801	my $map = cf::map::find $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1802	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1803		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1804	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1805	# if $map;
1806
1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1808		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1809	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1810	})->prio (1);	2750	})->prio (1);
1811	}	2751	}
1812		2752
1813	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1814		2754
…		…
1834	}	2774	}
1835		2775
1836	sub prepare_random_map {	2776	sub prepare_random_map {
1837	my ($exit) = @_;	2777	my ($exit) = @_;
1838		2778
1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
1840
1841	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1842	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1843	# that depends on the exit object	2781	# that depends on the exit object
1844		2782
1845	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1846		2784
1847	if ($exit->map) {	2785	if ($exit->map) {
1848	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1849	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1850	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1851	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1852	}	2792	}
1853		2793
1854	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1855		2795
1856	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1857	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1859		2799
1860	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1861	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1862	undef $fh;	2802	undef $fh;
1863	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1864		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1865	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1866	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1867	}	2811	}
1868	}	2812	}
1869		2813
1870	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1871	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
…		…
1873	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1874		2818
1875	$self->enter_link;	2819	$self->enter_link;
1876		2820
1877	(async {	2821	(async {
1878	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1879	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
1880	prepare_random_map $exit	2831	prepare_random_map $exit
1881	if $exit->slaying eq "/!";	2832	if $exit->slaying eq "/!";
		2833	}
1882		2834
1883	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
1885		2838
		2839	$self->goto ($map, $x, $y);
		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1886	1;	2845	1
1887	}) {	2846	}) {
1888	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1889	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1890	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1891	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1892		2851
1893	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1894	$self->leave_link;	2853	$self->leave_link;
1895	}	2854	}
1896	})->prio (1);	2855	})->prio (1);
…		…
1909		2868
1910	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1911	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1912		2871
1913	utf8::encode $text;	2872	utf8::encode $text;
1914	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1915	}	2874	}
1916		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1917		3097
1918	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1919		3099
1920	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1921	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1922	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1923		3103
1924	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1925	reliable at some point in the future.	3105	become reliable at some point in the future.
1926		3106
1927	=cut	3107	=cut
1928		3108
1929	sub cf::client::query {	3109	sub cf::client::query {
1930	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1938	utf8::encode $text;	3118	utf8::encode $text;
1939	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1940		3120
1941	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1942	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1943	}	3125	}
1944		3126
1945	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1946	on_reply => sub {	3133	on_reply => sub {
1947	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1948		3135
1949	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1950	# get handled first	3137	# get handled first
1951	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1952	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1953		3140
1954	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1955		3143
1956	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1957		3145
1958	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1959	if (@$queue) {	3147	if (@$queue) {
…		…
1961	} else {	3149	} else {
1962	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1963	}	3151	}
1964	}	3152	}
1965	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
1966	);	3180	);
1967		3181
1968	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
1969		3183
1970	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
1986		3200
1987	$coro	3201	$coro
1988	}	3202	}
1989		3203
1990	cf::client->attach (	3204	cf::client->attach (
1991	on_destroy => sub {	3205	on_client_destroy => sub {
1992	my ($ns) = @_;	3206	my ($ns) = @_;
1993		3207
1994	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1995	},	3209	},
1996	);	3210	);
…		…
2011	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2012	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2013		3227
2014	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2015		3229
2016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2017		3235
2018	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2019		3237
2020	=pod	3238	=pod
2021		3239
2022	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2023		3241
2024	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2025	cf::object::player player	3247	cf::object::player
2026	cf::player peaceful	3248	player
2027	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2028		3255
2029	=cut	3256	=cut
2030		3257
2031	for (	3258	for (
2032	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2033	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2034	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2035	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2036	) {	3265	) {
2037	no strict 'refs';	3266	no strict 'refs';
2038	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2039	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2057		3286
2058	my $qcode = $code;	3287	my $qcode = $code;
2059	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2060	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2061		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2062	local $_;	3294	local $_;
2063	local @safe::cf::_safe_eval_args = values %vars;
2064		3295
2065	my $eval =	3296	my $eval =
2066	"do {\n"	3297	"do {\n"
2067	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2068	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2069	. $code	3300	. $code
2070	. "\n}"	3301	. "\n}"
2071	;	3302	;
2072		3303
		3304	if ($CFG{safe_eval}) {
2073	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2074	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2075	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2076		3313
2077	if ($@) {	3314	if ($@) {
2078	warn "$@";	3315	warn "$@";
2079	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2080	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2099	=cut	3336	=cut
2100		3337
2101	sub register_script_function {	3338	sub register_script_function {
2102	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2103		3340
2104	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2105	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2106	}	3343	}
2107		3344
2108	=back	3345	=back
2109		3346
2110	=cut	3347	=cut
2111		3348
2112	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
2113		3351
2114	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
2115		3354
2116	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
2117	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
2118	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
2119		3358
2120	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2121	using it, it should be unique.
2122		3360
2123	=over 4	3361	warn "loading facedata from $path\n";
2124		3362
2125	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
2126		3366
2127	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
2128	modified. After modifications, you have to call C<cf::db_dirty> or
2129	C<cf::db_sync>.
2130		3368
2131	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2132		3371
2133	Returns a single value from the database	3372	# patch in the exptable
2134		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2135	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
2136		3375	type => FT_RSRC,
2137	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
2138	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
2139
2140	=item cf::db_put $family => $key => $value
2141
2142	Stores the given C<$value> in the family hash. Updates are delayed, if you
2143	want the data to be synced to disk immediately, use C<cf::db_sync>.
2144
2145	=item cf::db_dirty
2146
2147	Marks the database as dirty, to be updated at a later time.
2148
2149	=item cf::db_sync
2150
2151	Immediately write the database to disk I<if it is dirty>.
2152
2153	=cut
2154
2155	our $DB;
2156
2157	{
2158	my $path = cf::localdir . "/database.pst";
2159
2160	sub db_load() {
2161	$DB = stat $path ? Storable::retrieve $path : { };
2162	}
2163
2164	my $pid;
2165
2166	sub db_save() {
2167	waitpid $pid, 0 if $pid;
2168	if (0 == ($pid = fork)) {
2169	$DB->{_meta}{version} = 1;
2170	Storable::nstore $DB, "$path~";
2171	rename "$path~", $path;
2172	cf::_exit 0 if defined $pid;
2173	}
2174	}
2175
2176	my $dirty;
2177
2178	sub db_sync() {
2179	db_save if $dirty;
2180	undef $dirty;
2181	}
2182
2183	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2184	db_sync;
2185	});	3378	};
		3379	cf::cede_to_tick;
2186		3380
2187	sub db_dirty() {
2188	$dirty = 1;
2189	$idle->start;
2190	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
2191		3383
2192	sub db_get($;$) {	3384	while (my ($face, $info) = each %$faces) {
2193	@_ >= 2	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2194	? $DB->{$_[0]}{$_[1]}
2195	: ($DB->{$_[0]} ||= { })
2196	}
2197		3386
2198	sub db_put($$;$) {	3387	cf::face::set_visibility $idx, $info->{visibility};
2199	if (@_ >= 3) {	3388	cf::face::set_magicmap $idx, $info->{magicmap};
2200	$DB->{$_[0]}{$_[1]} = $_[2];	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2201	} else {	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2202	$DB->{$_[0]} = $_[1];
2203	}
2204	db_dirty;
2205	}
2206		3391
2207	cf::global->attach (	3392	cf::cede_to_tick;
2208	prio => 10000,
2209	on_cleanup => sub {
2210	db_sync;
2211	},	3393	}
2212	);
2213	}
2214		3394
2215	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
2216	# the server's main()	3396	next unless $info->{smooth};
2217		3397
2218	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info; # unused
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
		3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
		3468	load_resource_file "$MAPDIR/regions"
		3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
		3475	}
		3476
		3477	sub reload_facedata {
		3478	load_facedata "$DATADIR/facedata"
		3479	or die "unable to load facedata\n";
		3480	}
		3481
		3482	sub reload_archetypes {
		3483	load_resource_file "$DATADIR/archetypes"
		3484	or die "unable to load archetypes\n";
		3485	}
		3486
		3487	sub reload_treasures {
		3488	load_resource_file "$DATADIR/treasures"
		3489	or die "unable to load treasurelists\n";
		3490	}
		3491
		3492	sub reload_sound {
		3493	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3494	or die "$DATADIR/sound $!";
		3495
		3496	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3497
		3498	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3499	my $sound = $soundconf->{compat}[$_]
		3500	or next;
		3501
		3502	my $face = cf::face::find "sound/$sound->[1]";
		3503	cf::sound::set $sound->[0] => $face;
		3504	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3505	}
		3506
		3507	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3508	my $face = cf::face::find "sound/$v";
		3509	cf::sound::set $k => $face;
		3510	}
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_sound;
		3518	reload_archetypes;
		3519	reload_regions;
		3520	reload_treasures;
		3521
		3522	warn "finished reloading resource files\n";
		3523	}
		3524
		3525	sub reload_config {
		3526	warn "reloading config file...\n";
		3527
2219	open my $fh, "<:utf8", cf::confdir . "/config"	3528	open my $fh, "<:utf8", "$CONFDIR/config"
2220	or return;	3529	or return;
2221		3530
2222	local $/;	3531	local $/;
2223	*CFG = YAML::Syck::Load <$fh>;	3532	*CFG = YAML::XS::Load scalar <$fh>;
2224		3533
2225	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3534	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2226		3535
2227	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3536	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2228	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3537	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2229		3538
2230	if (exists $CFG{mlockall}) {	3539	if (exists $CFG{mlockall}) {
…		…
2232	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3541	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2233	and die "WARNING: m(un)lockall failed: $!\n";	3542	and die "WARNING: m(un)lockall failed: $!\n";
2234	};	3543	};
2235	warn $@ if $@;	3544	warn $@ if $@;
2236	}	3545	}
		3546
		3547	warn "finished reloading resource files\n";
		3548	}
		3549
		3550	sub pidfile() {
		3551	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3552	or die "$PIDFILE: $!";
		3553	flock $fh, &Fcntl::LOCK_EX
		3554	or die "$PIDFILE: flock: $!";
		3555	$fh
		3556	}
		3557
		3558	# make sure only one server instance is running at any one time
		3559	sub atomic {
		3560	my $fh = pidfile;
		3561
		3562	my $pid = <$fh>;
		3563	kill 9, $pid if $pid > 0;
		3564
		3565	seek $fh, 0, 0;
		3566	print $fh $$;
		3567	}
		3568
		3569	sub main_loop {
		3570	warn "EV::loop starting\n";
		3571	if (1) {
		3572	EV::loop;
		3573	}
		3574	warn "EV::loop returned\n";
		3575	goto &main_loop unless $REALLY_UNLOOP;
2237	}	3576	}
2238		3577
2239	sub main {	3578	sub main {
		3579	cf::init_globals; # initialise logging
		3580
		3581	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3582	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3583	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3584	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3585
		3586	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3587
2240	# we must not ever block the main coroutine	3588	# we must not ever block the main coroutine
2241	local $Coro::idle = sub {	3589	local $Coro::idle = sub {
2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3590	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2243	(async {	3591	(async {
2244	Event::one_event;	3592	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3593	EV::loop EV::LOOP_ONESHOT;
2245	})->prio (Coro::PRIO_MAX);	3594	})->prio (Coro::PRIO_MAX);
2246	};	3595	};
2247		3596
2248	cfg_load;	3597	evthread_start IO::AIO::poll_fileno;
2249	db_load;	3598
		3599	cf::sync_job {
		3600	cf::init_experience;
		3601	cf::init_anim;
		3602	cf::init_attackmess;
		3603	cf::init_dynamic;
		3604
		3605	cf::load_settings;
		3606	cf::load_materials;
		3607
		3608	reload_resources;
		3609	reload_config;
		3610	db_init;
		3611
		3612	cf::init_uuid;
		3613	cf::init_signals;
		3614	cf::init_skills;
		3615
		3616	cf::init_beforeplay;
		3617
		3618	atomic;
		3619
2250	load_extensions;	3620	load_extensions;
2251		3621
2252	$TICK_WATCHER->start;	3622	utime time, time, $RUNTIMEFILE;
2253	Event::loop;	3623
		3624	# no (long-running) fork's whatsoever before this point(!)
		3625	use POSIX ();
		3626	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3627
		3628	(pop @POST_INIT)->(0) while @POST_INIT;
		3629	};
		3630
		3631	cf::object::thawer::errors_are_fatal 0;
		3632	warn "parse errors in files are no longer fatal from this point on.\n";
		3633
		3634	main_loop;
2254	}	3635	}
2255		3636
2256	#############################################################################	3637	#############################################################################
2257	# initialisation and cleanup	3638	# initialisation and cleanup
2258		3639
2259	# install some emergency cleanup handlers	3640	# install some emergency cleanup handlers
2260	BEGIN {	3641	BEGIN {
		3642	our %SIGWATCHER = ();
2261	for my $signal (qw(INT HUP TERM)) {	3643	for my $signal (qw(INT HUP TERM)) {
2262	Event->signal (	3644	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2263	data => WF_AUTOCANCEL,
2264	signal => $signal,
2265	cb => sub {
2266	cf::cleanup "SIG$signal";	3645	cf::cleanup "SIG$signal";
2267	},
2268	);	3646	};
		3647	}
		3648	}
		3649
		3650	sub write_runtime_sync {
		3651	my $t0 = AE::time;
		3652
		3653	# first touch the runtime file to show we are still running:
		3654	# the fsync below can take a very very long time.
		3655
		3656	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3657
		3658	my $guard = cf::lock_acquire "write_runtime";
		3659
		3660	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3661	or return;
		3662
		3663	my $value = $cf::RUNTIME + 90 + 10;
		3664	# 10 is the runtime save interval, for a monotonic clock
		3665	# 60 allows for the watchdog to kill the server.
		3666
		3667	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3668	and return;
		3669
		3670	# always fsync - this file is important
		3671	aio_fsync $fh
		3672	and return;
		3673
		3674	# touch it again to show we are up-to-date
		3675	aio_utime $fh, undef, undef;
		3676
		3677	close $fh
		3678	or return;
		3679
		3680	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3681	and return;
		3682
		3683	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3684
2269	}	3685	1
		3686	}
		3687
		3688	our $uuid_lock;
		3689	our $uuid_skip;
		3690
		3691	sub write_uuid_sync($) {
		3692	$uuid_skip ||= $_[0];
		3693
		3694	return if $uuid_lock;
		3695	local $uuid_lock = 1;
		3696
		3697	my $uuid = "$LOCALDIR/uuid";
		3698
		3699	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3700	or return;
		3701
		3702	my $value = uuid_seq uuid_cur;
		3703
		3704	unless ($value) {
		3705	warn "cowardly refusing to write zero uuid value!\n";
		3706	return;
		3707	}
		3708
		3709	my $value = uuid_str $value + $uuid_skip;
		3710	$uuid_skip = 0;
		3711
		3712	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3713	and return;
		3714
		3715	# always fsync - this file is important
		3716	aio_fsync $fh
		3717	and return;
		3718
		3719	close $fh
		3720	or return;
		3721
		3722	aio_rename "$uuid~", $uuid
		3723	and return;
		3724
		3725	warn "uuid file written ($value).\n";
		3726
		3727	1
		3728
		3729	}
		3730
		3731	sub write_uuid($$) {
		3732	my ($skip, $sync) = @_;
		3733
		3734	$sync ? write_uuid_sync $skip
		3735	: async { write_uuid_sync $skip };
2270	}	3736	}
2271		3737
2272	sub emergency_save() {	3738	sub emergency_save() {
2273	my $freeze_guard = cf::freeze_mainloop;	3739	my $freeze_guard = cf::freeze_mainloop;
2274		3740
2275	warn "enter emergency perl save\n";	3741	warn "emergency_perl_save: enter\n";
2276		3742
2277	cf::sync_job {	3743	cf::sync_job {
		3744	# this is a trade-off: we want to be very quick here, so
		3745	# save all maps without fsync, and later call a global sync
		3746	# (which in turn might be very very slow)
		3747	local $USE_FSYNC = 0;
		3748
2278	# use a peculiar iteration method to avoid tripping on perl	3749	# use a peculiar iteration method to avoid tripping on perl
2279	# refcount bugs in for. also avoids problems with players	3750	# refcount bugs in for. also avoids problems with players
2280	# and maps saved/destroyed asynchronously.	3751	# and maps saved/destroyed asynchronously.
2281	warn "begin emergency player save\n";	3752	warn "emergency_perl_save: begin player save\n";
2282	for my $login (keys %cf::PLAYER) {	3753	for my $login (keys %cf::PLAYER) {
2283	my $pl = $cf::PLAYER{$login} or next;	3754	my $pl = $cf::PLAYER{$login} or next;
2284	$pl->valid or next;	3755	$pl->valid or next;
		3756	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2285	$pl->save;	3757	$pl->save;
2286	}	3758	}
2287	warn "end emergency player save\n";	3759	warn "emergency_perl_save: end player save\n";
2288		3760
2289	warn "begin emergency map save\n";	3761	warn "emergency_perl_save: begin map save\n";
2290	for my $path (keys %cf::MAP) {	3762	for my $path (keys %cf::MAP) {
2291	my $map = $cf::MAP{$path} or next;	3763	my $map = $cf::MAP{$path} or next;
2292	$map->valid or next;	3764	$map->valid or next;
2293	$map->save;	3765	$map->save;
2294	}	3766	}
2295	warn "end emergency map save\n";	3767	warn "emergency_perl_save: end map save\n";
		3768
		3769	warn "emergency_perl_save: begin database checkpoint\n";
		3770	BDB::db_env_txn_checkpoint $DB_ENV;
		3771	warn "emergency_perl_save: end database checkpoint\n";
		3772
		3773	warn "emergency_perl_save: begin write uuid\n";
		3774	write_uuid_sync 1;
		3775	warn "emergency_perl_save: end write uuid\n";
2296	};	3776	};
2297		3777
		3778	warn "emergency_perl_save: starting sync()\n";
		3779	IO::AIO::aio_sync sub {
		3780	warn "emergency_perl_save: finished sync()\n";
		3781	};
		3782
2298	warn "leave emergency perl save\n";	3783	warn "emergency_perl_save: leave\n";
2299	}	3784	}
2300		3785
		3786	sub post_cleanup {
		3787	my ($make_core) = @_;
		3788
		3789	warn Carp::longmess "post_cleanup backtrace"
		3790	if $make_core;
		3791
		3792	my $fh = pidfile;
		3793	unlink $PIDFILE if <$fh> == $$;
		3794	}
		3795
		3796	# a safer delete_package, copied from Symbol
		3797	sub clear_package($) {
		3798	my $pkg = shift;
		3799
		3800	# expand to full symbol table name if needed
		3801	unless ($pkg =~ /^main::.*::$/) {
		3802	$pkg = "main$pkg" if $pkg =~ /^::/;
		3803	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3804	$pkg .= '::' unless $pkg =~ /::$/;
		3805	}
		3806
		3807	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3808	my $stem_symtab = *{$stem}{HASH};
		3809
		3810	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3811	or return;
		3812
		3813	# clear all symbols
		3814	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3815	for my $name (keys %$leaf_symtab) {
		3816	_gv_clear *{"$pkg$name"};
		3817	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3818	}
		3819	}
		3820
2301	sub reload() {	3821	sub do_reload_perl() {
2302	# can/must only be called in main	3822	# can/must only be called in main
2303	if ($Coro::current != $Coro::main) {	3823	if (in_main) {
2304	warn "can only reload from main coroutine";	3824	warn "can only reload from main coroutine";
2305	return;	3825	return;
2306	}	3826	}
2307		3827
		3828	return if $RELOAD++;
		3829
		3830	my $t1 = AE::time;
		3831
		3832	while ($RELOAD) {
2308	warn "reloading...";	3833	warn "reloading...";
2309		3834
2310	warn "cancelling server ticker";	3835	warn "entering sync_job";
2311	$TICK_WATCHER->cancel;
2312		3836
		3837	cf::sync_job {
		3838	cf::write_runtime_sync; # external watchdog should not bark
2313	cf::emergency_save;	3839	cf::emergency_save;
		3840	cf::write_runtime_sync; # external watchdog should not bark
2314		3841
2315	eval {	3842	warn "syncing database to disk";
		3843	BDB::db_env_txn_checkpoint $DB_ENV;
		3844
2316	# if anything goes wrong in here, we should simply crash as we already saved	3845	# if anything goes wrong in here, we should simply crash as we already saved
2317		3846
2318	warn "syncing database to disk";
2319	cf::db_sync;
2320
2321	warn "cancelling all WF_AUTOCANCEL watchers";
2322	for (Event::all_watchers) {
2323	$_->cancel if $_->data & WF_AUTOCANCEL;
2324	}
2325
2326	warn "flushing outstanding aio requests";	3847	warn "flushing outstanding aio requests";
2327	for (;;) {	3848	while (IO::AIO::nreqs || BDB::nreqs) {
2328	IO::AIO::flush;	3849	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2329	Coro::cede;
2330	last unless IO::AIO::nreqs;
2331	warn "iterate...";
2332	}
2333
2334	warn "cancelling all extension coros";
2335	$_->cancel for values %EXT_CORO;
2336	%EXT_CORO = ();
2337
2338	warn "removing commands";
2339	%COMMAND = ();
2340
2341	warn "removing ext commands";
2342	%EXTCMD = ();
2343
2344	warn "unloading/nuking all extensions";
2345	for my $pkg (@EXTS) {
2346	warn "... unloading $pkg";
2347
2348	if (my $cb = $pkg->can ("unload")) {
2349	eval {
2350	$cb->($pkg);
2351	1
2352	} or warn "$pkg unloaded, but with errors: $@";
2353	}	3850	}
2354		3851
2355	warn "... nuking $pkg";	3852	warn "cancelling all extension coros";
2356	Symbol::delete_package $pkg;	3853	$_->cancel for values %EXT_CORO;
2357	}	3854	%EXT_CORO = ();
2358		3855
2359	warn "unloading all perl modules loaded from $LIBDIR";	3856	warn "removing commands";
2360	while (my ($k, $v) = each %INC) {	3857	%COMMAND = ();
2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2362		3858
		3859	warn "removing ext/exti commands";
		3860	%EXTCMD = ();
		3861	%EXTICMD = ();
		3862
		3863	warn "unloading/nuking all extensions";
		3864	for my $pkg (@EXTS) {
2363	warn "... unloading $k";	3865	warn "... unloading $pkg";
2364	delete $INC{$k};
2365		3866
2366	$k =~ s/\.pm$//;
2367	$k =~ s/\//::/g;
2368
2369	if (my $cb = $k->can ("unload_module")) {	3867	if (my $cb = $pkg->can ("unload")) {
		3868	eval {
2370	$cb->();	3869	$cb->($pkg);
		3870	1
		3871	} or warn "$pkg unloaded, but with errors: $@";
		3872	}
		3873
		3874	warn "... clearing $pkg";
		3875	clear_package $pkg;
2371	}	3876	}
2372		3877
2373	Symbol::delete_package $k;	3878	warn "unloading all perl modules loaded from $LIBDIR";
		3879	while (my ($k, $v) = each %INC) {
		3880	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3881
		3882	warn "... unloading $k";
		3883	delete $INC{$k};
		3884
		3885	$k =~ s/\.pm$//;
		3886	$k =~ s/\//::/g;
		3887
		3888	if (my $cb = $k->can ("unload_module")) {
		3889	$cb->();
		3890	}
		3891
		3892	clear_package $k;
2374	}	3893	}
2375		3894
2376	warn "getting rid of safe::, as good as possible";	3895	warn "getting rid of safe::, as good as possible";
2377	Symbol::delete_package "safe::$_"	3896	clear_package "safe::$_"
2378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3897	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2379		3898
2380	warn "unloading cf.pm \"a bit\"";	3899	warn "unloading cf.pm \"a bit\"";
2381	delete $INC{"cf.pm"};	3900	delete $INC{"cf.pm"};
		3901	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2382		3902
2383	# don't, removes xs symbols, too,	3903	# don't, removes xs symbols, too,
2384	# and global variables created in xs	3904	# and global variables created in xs
2385	#Symbol::delete_package __PACKAGE__;	3905	#clear_package __PACKAGE__;
2386		3906
2387	warn "unload completed, starting to reload now";	3907	warn "unload completed, starting to reload now";
2388		3908
2389	warn "reloading cf.pm";	3909	warn "reloading cf.pm";
2390	require cf;	3910	require cf;
2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3911	cf::_connect_to_perl_1;
2392		3912
2393	warn "loading config and database again";	3913	warn "loading config and database again";
2394	cf::cfg_load;	3914	cf::reload_config;
2395	cf::db_load;
2396		3915
2397	warn "loading extensions";	3916	warn "loading extensions";
2398	cf::load_extensions;	3917	cf::load_extensions;
2399		3918
		3919	if ($REATTACH_ON_RELOAD) {
2400	warn "reattaching attachments to objects/players";	3920	warn "reattaching attachments to objects/players";
2401	_global_reattach;	3921	_global_reattach; # objects, sockets
2402	warn "reattaching attachments to maps";	3922	warn "reattaching attachments to maps";
2403	reattach $_ for values %MAP;	3923	reattach $_ for values %MAP;
		3924	warn "reattaching attachments to players";
		3925	reattach $_ for values %PLAYER;
		3926	}
2404		3927
2405	warn "restarting server ticker";	3928	warn "running post_init jobs";
		3929	(pop @POST_INIT)->(1) while @POST_INIT;
2406		3930
2407	$TICK_WATCHER->start;	3931	warn "leaving sync_job";
		3932
		3933	1
		3934	} or do {
		3935	warn $@;
		3936	cf::cleanup "error while reloading, exiting.";
		3937	};
		3938
		3939	warn "reloaded";
		3940	--$RELOAD;
		3941	}
		3942
		3943	$t1 = AE::time - $t1;
		3944	warn "reload completed in ${t1}s\n";
		3945	};
		3946
		3947	our $RELOAD_WATCHER; # used only during reload
		3948
		3949	sub reload_perl() {
		3950	# doing reload synchronously and two reloads happen back-to-back,
		3951	# coro crashes during coro_state_free->destroy here.
		3952
		3953	$RELOAD_WATCHER ||= cf::async {
		3954	Coro::AIO::aio_wait cache_extensions;
		3955
		3956	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3957	do_reload_perl;
		3958	undef $RELOAD_WATCHER;
		3959	};
2408	};	3960	};
2409		3961	}
2410	if ($@) {
2411	warn $@;
2412	warn "error while reloading, exiting.";
2413	exit 1;
2414	}
2415
2416	warn "reloaded";
2417	};
2418
2419	our $RELOAD_WATCHER; # used only during reload
2420		3962
2421	register_command "reload" => sub {	3963	register_command "reload" => sub {
2422	my ($who, $arg) = @_;	3964	my ($who, $arg) = @_;
2423		3965
2424	if ($who->flag (FLAG_WIZ)) {	3966	if ($who->flag (FLAG_WIZ)) {
2425	$who->message ("reloading server.");	3967	$who->message ("reloading server.");
2426		3968	async {
2427	# doing reload synchronously and two reloads happen back-to-back,	3969	$Coro::current->{desc} = "perl_reload";
2428	# coro crashes during coro_state_free->destroy here.
2429
2430	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2431	reload;	3970	reload_perl;
2432	undef $RELOAD_WATCHER;
2433	});	3971	};
2434	}	3972	}
2435	};	3973	};
2436		3974
2437	unshift @INC, $LIBDIR;	3975	unshift @INC, $LIBDIR;
2438		3976
2439	my $bug_warning = 0;	3977	my $bug_warning = 0;
2440		3978
2441	$TICK_WATCHER = Event->timer (	3979	our @WAIT_FOR_TICK;
2442	reentrant => 0,	3980	our @WAIT_FOR_TICK_BEGIN;
2443	parked => 1,	3981
2444	prio => 0,	3982	sub wait_for_tick {
2445	at => $NEXT_TICK || $TICK,	3983	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2446	data => WF_AUTOCANCEL,	3984
2447	cb => sub {	3985	my $signal = new Coro::Signal;
		3986	push @WAIT_FOR_TICK, $signal;
		3987	$signal->wait;
		3988	}
		3989
		3990	sub wait_for_tick_begin {
		3991	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3992
		3993	my $signal = new Coro::Signal;
		3994	push @WAIT_FOR_TICK_BEGIN, $signal;
		3995	$signal->wait;
		3996	}
		3997
		3998	sub tick {
2448	if ($Coro::current != $Coro::main) {	3999	if ($Coro::current != $Coro::main) {
2449	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4000	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2450	unless ++$bug_warning > 10;	4001	unless ++$bug_warning > 10;
2451	return;	4002	return;
2452	}	4003	}
2453		4004
2454	$NOW = Event::time;
2455
2456	cf::server_tick; # one server iteration	4005	cf::server_tick; # one server iteration
2457	$RUNTIME += $TICK;
2458	$NEXT_TICK += $TICK;
2459		4006
2460	$WAIT_FOR_TICK->broadcast;	4007	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2461	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2462		4008
2463	# if we are delayed by four ticks or more, skip them all	4009	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4010	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2465		4011	Coro::async_pool {
2466	$TICK_WATCHER->at ($NEXT_TICK);	4012	$Coro::current->{desc} = "runtime saver";
2467	$TICK_WATCHER->start;
2468	},
2469	);
2470
2471	IO::AIO::max_poll_time $TICK * 0.2;
2472
2473	$AIO_POLL_WATCHER = Event->io (
2474	fd => IO::AIO::poll_fileno,
2475	poll => 'r',
2476	prio => 5,
2477	data => WF_AUTOCANCEL,
2478	cb => \&IO::AIO::poll_cb,
2479	);
2480
2481	$WRITE_RUNTIME_WATCHER = Event->timer (
2482	data => WF_AUTOCANCEL,
2483	after => 1,
2484	interval => 10,
2485	prio => 6, # keep it lowest so it acts like a watchdog
2486	cb => Coro::unblock_sub {
2487	write_runtime	4013	write_runtime_sync
2488	or warn "ERROR: unable to write runtime file: $!";	4014	or warn "ERROR: unable to write runtime file: $!";
		4015	};
2489	},	4016	}
2490	);	4017
		4018	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4019	$sig->send;
		4020	}
		4021	while (my $sig = shift @WAIT_FOR_TICK) {
		4022	$sig->send;
		4023	}
		4024
		4025	$LOAD = ($NOW - $TICK_START) / $TICK;
		4026	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4027
		4028	if (0) {
		4029	if ($NEXT_TICK) {
		4030	my $jitter = $TICK_START - $NEXT_TICK;
		4031	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4032	warn "jitter $JITTER\n";#d#
		4033	}
		4034	}
		4035	}
		4036
		4037	{
		4038	# configure BDB
		4039
		4040	BDB::min_parallel 16;
		4041	BDB::max_poll_reqs $TICK * 0.1;
		4042	$AnyEvent::BDB::WATCHER->priority (1);
		4043
		4044	unless ($DB_ENV) {
		4045	$DB_ENV = BDB::db_env_create;
		4046	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4047	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4048	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4049	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4050	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4051
		4052	cf::sync_job {
		4053	eval {
		4054	BDB::db_env_open
		4055	$DB_ENV,
		4056	$BDBDIR,
		4057	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4058	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4059	0666;
		4060
		4061	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4062	};
		4063
		4064	cf::cleanup "db_env_open(db): $@" if $@;
		4065	};
		4066	}
		4067
		4068	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4069	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4070	};
		4071	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4072	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4073	};
		4074	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4075	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4076	};
		4077	}
		4078
		4079	{
		4080	# configure IO::AIO
		4081
		4082	IO::AIO::min_parallel 8;
		4083	IO::AIO::max_poll_time $TICK * 0.1;
		4084	undef $AnyEvent::AIO::WATCHER;
		4085	}
		4086
		4087	my $_log_backtrace;
		4088
		4089	sub _log_backtrace {
		4090	my ($msg, @addr) = @_;
		4091
		4092	$msg =~ s/\n//;
		4093
		4094	# limit the # of concurrent backtraces
		4095	if ($_log_backtrace < 2) {
		4096	++$_log_backtrace;
		4097	my $perl_bt = Carp::longmess $msg;
		4098	async {
		4099	$Coro::current->{desc} = "abt $msg";
		4100
		4101	my @bt = fork_call {
		4102	@addr = map { sprintf "%x", $_ } @addr;
		4103	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4104	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4105	or die "addr2line: $!";
		4106
		4107	my @funcs;
		4108	my @res = <$fh>;
		4109	chomp for @res;
		4110	while (@res) {
		4111	my ($func, $line) = splice @res, 0, 2, ();
		4112	push @funcs, "[$func] $line";
		4113	}
		4114
		4115	@funcs
		4116	};
		4117
		4118	LOG llevInfo, "[ABT] $perl_bt\n";
		4119	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4120	LOG llevInfo, "[ABT] $_\n" for @bt;
		4121	--$_log_backtrace;
		4122	};
		4123	} else {
		4124	LOG llevInfo, "[ABT] $msg\n";
		4125	LOG llevInfo, "[ABT] [suppressed]\n";
		4126	}
		4127	}
		4128
		4129	# load additional modules
		4130	require "cf/$_.pm" for @EXTRA_MODULES;
		4131	cf::_connect_to_perl_2;
2491		4132
2492	END { cf::emergency_save }	4133	END { cf::emergency_save }
2493		4134
2494	1	4135	1
2495		4136

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