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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.171 by root, Sun Jan 14 12:24:48 2007 UTC vs.
Revision 1.560 by root, Fri Apr 22 02:03:12 2011 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
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
49	our $AIO_POLL_WATCHER;	99	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	123	our $NEXT_TICK;
52	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
53		132
54	our %CFG;	133	our %CFG;
55		134
56	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
58		138
59	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	141	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		142
67	# used to convert map paths into valid unix filenames by replacing / by ∕	143	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
		155
70	binmode STDOUT;	156	binmode STDOUT;
71	binmode STDERR;	157	binmode STDERR;
72		158
73	# read virtual server time, if available	159	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
78	}	164	}
79		165
80	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	167
82	mkdir cf::localdir . "/" . cf::tmpdir;	168	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		170
86	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
87		189
88	#############################################################################	190	#############################################################################
89		191
90	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
91		193
…		…
98	=item $cf::RUNTIME	200	=item $cf::RUNTIME
99		201
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	203	every server tick.
102		204
103	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		208
105	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
107		213
108	=item $cf::NOW	214	=item $cf::NOW
109		215
110	The time of the last (current) server tick.	216	The time of the last (current) server tick.
111		217
112	=item $cf::TICK	218	=item $cf::TICK
113		219
114	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
115		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
116	=item %cf::CFG	232	=item %cf::CFG
117		233
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	235	from wherever your confdir points to.
120		236
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		238
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	239	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	240	returns directly I<after> the tick processing (and consequently, can only wake one thread
125	processing has been done. Call C<< ->wait >> on them to maximise the	241	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.	242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
127		259
128	=back	260	=back
129		261
130	=cut	262	=cut
131		263
132	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
133	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
134	my $msg = join "", @_;	271	my $msg = join "", @_;
135	utf8::encode $msg;
136		272
137	$msg .= "\n"	273	$msg .= "\n"
138	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
139		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
140	LOG llevError, $msg;	278	LOG llevWarn, $msg;
141	};	279	};
142	}	280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
143		294
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		302
151	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	304	# within the Safe compartment.
153	for my $pkg (qw(	305	for my $pkg (qw(
154	cf::global cf::attachable	306	cf::global cf::attachable
155	cf::object cf::object::player	307	cf::object cf::object::player
156	cf::client cf::player	308	cf::client cf::player
157	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
158	cf::map cf::party cf::region	311	cf::party cf::region
159	)) {	312	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	314	}
163		315
164	$Event::DIED = sub {	316	$EV::DIED = sub {
165	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
166	};	318	};
		319
		320	#############################################################################
		321
		322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
167		326
168	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
169		328
170	=over 4	329	=over 4
171		330
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	350	$d
192	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
193	}	352	}
194		353
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
196		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
197	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
198		369
199	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
200		371
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	372	=item $json = cf::encode_json $ref
209		373
210	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
211		375
212	=cut	376	=cut
213		377
214	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
216	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
		399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
217	}	443	}
218		444
219	=item cf::lock_wait $string	445	=item cf::lock_wait $string
220		446
221	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
222		448
223	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
224		450
225	Wait until the given lock is available and then acquires it and returns	451	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,	452	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	453	for example when the coroutine gets canceled), the lock is automatically
228	returned.	454	returned.
229		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
230	Lock names should begin with a unique identifier (for example, cf::map::find	459	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
232		461
233	=cut	462	=item $locked = cf::lock_active $string
234		463
235	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
236		469
237	sub lock_wait($) {	470	sub lock_wait($) {
238	my ($key) = @_;	471	$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	}	472	}
246		473
247	sub lock_acquire($) {	474	sub lock_acquire($) {
248	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
249		477
250	# wait, to be sure we are not locked	478	sub lock_active($) {
251	lock_wait $key;	479	$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	}	480	}
260		481
261	sub freeze_mainloop {	482	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
263		484
264	my $guard = Coro::guard {	485	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	486	}
266	$WRITE_RUNTIME_WATCHER->start;	487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
267	};	556	}
268	$WRITE_RUNTIME_WATCHER->stop;	557	};
269	$TICK_WATCHER->stop;	558
270	$guard	559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
271	}	572	}
272		573
273	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
274		575
275	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		581
281	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
282		583
283	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
284		585
285	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	587	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.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
288		590
289	If it must be done, put the blocking parts into C<sync_job>. This will run	591	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	592	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	593	server will be frozen during this time, so the block should either finish
292	fast or be very important.	594	fast or be very important.
…		…
294	=cut	596	=cut
295		597
296	sub sync_job(&) {	598	sub sync_job(&) {
297	my ($job) = @_;	599	my ($job) = @_;
298		600
299	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
300	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
302		606
303	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	608
305	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
306		610
307	my $busy = 1;	611	my $busy = 1;
308	my @res;	612	my @res;
309		613
310	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	616	@res = eval { $job->() };
312	warn $@ if $@;	617	error $@ if $@;
313	undef $busy;	618	undef $busy;
314	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
315		620
316	while ($busy) {	621	while ($busy) {
317	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
318	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
319		632
320	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
321	} else {	634	} else {
322	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
323		636
…		…
343	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
344		657
345	$coro	658	$coro
346	}	659	}
347		660
348	sub write_runtime {	661	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		662
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
352	or return;	664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
353		667
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		669
358	aio_fsync $fh	670	sub post_fork {
359	and return;	671	reset_signals;
		672	}
360		673
361	close $fh	674	sub fork_call(&@) {
362	or return;	675	my ($cb, @args) = @_;
363		676
364	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
365	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
366		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
367	1	690	(
		691	"counter value" => cf::object::object_count,
		692	"objects created" => cf::object::create_count,
		693	"objects destroyed" => cf::object::destroy_count,
		694	"freelist size" => cf::object::free_count,
		695	"allocated objects" => cf::object::objects_size,
		696	"active objects" => cf::object::actives_size,
		697	)
		698	}
		699
		700	=item $coin = coin_from_name $name
		701
		702	=cut
		703
		704	our %coin_alias = (
		705	"silver" => "silvercoin",
		706	"silvercoin" => "silvercoin",
		707	"silvercoins" => "silvercoin",
		708	"gold" => "goldcoin",
		709	"goldcoin" => "goldcoin",
		710	"goldcoins" => "goldcoin",
		711	"platinum" => "platinacoin",
		712	"platinumcoin" => "platinacoin",
		713	"platinumcoins" => "platinacoin",
		714	"platina" => "platinacoin",
		715	"platinacoin" => "platinacoin",
		716	"platinacoins" => "platinacoin",
		717	"royalty" => "royalty",
		718	"royalties" => "royalty",
		719	);
		720
		721	sub coin_from_name($) {
		722	$coin_alias{$_[0]}
		723	? cf::arch::find $coin_alias{$_[0]}
		724	: undef
		725	}
		726
		727	=item $value = cf::db_get $family => $key
		728
		729	Returns a single value from the environment database.
		730
		731	=item cf::db_put $family => $key => $value
		732
		733	Stores the given C<$value> in the family. It can currently store binary
		734	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		735
		736	=item $db = cf::db_table "name"
		737
		738	Create and/or open a new database table. The string must not be "db" and must be unique
		739	within each server.
		740
		741	=cut
		742
		743	sub db_table($) {
		744	cf::error "db_get called from main context"
		745	if $Coro::current == $Coro::main;
		746
		747	my ($name) = @_;
		748	my $db = BDB::db_create $DB_ENV;
		749
		750	eval {
		751	$db->set_flags (BDB::CHKSUM);
		752
		753	utf8::encode $name;
		754	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		755	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		756	cf::cleanup "db_open(db): $!" if $!;
		757	};
		758	cf::cleanup "db_open(db): $@" if $@;
		759
		760	$db
		761	}
		762
		763	our $DB;
		764
		765	sub db_init {
		766	$DB ||= db_table "db";
		767	}
		768
		769	sub db_get($$) {
		770	my $key = "$_[0]/$_[1]";
		771
		772	cf::error "db_get called from main context"
		773	if $Coro::current == $Coro::main;
		774
		775	BDB::db_get $DB, undef, $key, my $data;
		776
		777	$! ? ()
		778	: $data
		779	}
		780
		781	sub db_put($$$) {
		782	BDB::dbreq_pri 4;
		783	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		784	}
		785
		786	=item cf::cache $id => [$paths...], $processversion => $process
		787
		788	Generic caching function that returns the value of the resource $id,
		789	caching and regenerating as required.
		790
		791	This function can block.
		792
		793	=cut
		794
		795	sub cache {
		796	my ($id, $src, $processversion, $process) = @_;
		797
		798	my $meta =
		799	join "\x00",
		800	$processversion,
		801	map {
		802	aio_stat $_
		803	and Carp::croak "$_: $!";
		804
		805	($_, (stat _)[7,9])
		806	} @$src;
		807
		808	my $dbmeta = db_get cache => "$id/meta";
		809	if ($dbmeta ne $meta) {
		810	# changed, we may need to process
		811
		812	my @data;
		813	my $md5;
		814
		815	for (0 .. $#$src) {
		816	$data[$_] = load_file $src->[$_];
		817	}
		818
		819	# if processing is expensive, check
		820	# checksum first
		821	if (1) {
		822	$md5 =
		823	join "\x00",
		824	$processversion,
		825	map {
		826	cf::cede_to_tick;
		827	($src->[$_], Digest::MD5::md5_hex $data[$_])
		828	} 0.. $#$src;
		829
		830
		831	my $dbmd5 = db_get cache => "$id/md5";
		832	if ($dbmd5 eq $md5) {
		833	db_put cache => "$id/meta", $meta;
		834
		835	return db_get cache => "$id/data";
		836	}
		837	}
		838
		839	my $t1 = Time::HiRes::time;
		840	my $data = $process->(\@data);
		841	my $t2 = Time::HiRes::time;
		842
		843	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		844
		845	db_put cache => "$id/data", $data;
		846	db_put cache => "$id/md5" , $md5;
		847	db_put cache => "$id/meta", $meta;
		848
		849	return $data;
		850	}
		851
		852	db_get cache => "$id/data"
		853	}
		854
		855	=item cf::datalog type => key => value, ...
		856
		857	Log a datalog packet of the given type with the given key-value pairs.
		858
		859	=cut
		860
		861	sub datalog($@) {
		862	my ($type, %kv) = @_;
		863	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	864	}
369		865
370	=back	866	=back
371		867
372	=cut	868	=cut
373		869
374	#############################################################################	870	#############################################################################
375		871
376	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
377		873
378	Many objects in crossfire are so-called attachable objects. That means you can	874	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	875	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
381		877
382	In the following description, CLASS can be any of C<global>, C<object>	878	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	879	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	880	Deliantra).
385		881
386	=over 4	882	=over 4
387		883
388	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
389		885
…		…
433	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
434		930
435	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
437		933
438	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	935	that are attached at load/instantiate time, thus the need for a name.
440		936
441	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
442		938
443	=over 4	939	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
553		1049
554	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		1054
559	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
561		1057
562	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
567		1063
568	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
569	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
570		1066
571	} elsif (ref $type) {	1067	} elsif (ref $type) {
572	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
573		1069
574	} else {	1070	} else {
575	shift @arg;	1071	shift @arg;
576	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
577	}	1073	}
578	}	1074	}
579	}	1075	}
580		1076
581	sub _object_attach {	1077	sub _object_attach {
…		…
591	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
592	}	1088	}
593		1089
594	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
595	} else {	1091	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
597	}	1093	}
598		1094
599	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
600	}	1096	}
601		1097
…		…
603	if (ref $_[0]) {	1099	if (ref $_[0]) {
604	_object_attach @_;	1100	_object_attach @_;
605	} else {	1101	} else {
606	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
607	}	1103	}
		1104	_recalc_want;
608	};	1105	};
609		1106
610	# all those should be optimised	1107	# all those should be optimised
611	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
616	reattach ($obj);	1113	reattach ($obj);
617	} else {	1114	} else {
618	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
619	}	1116	}
		1117	_recalc_want;
620	};	1118	};
621		1119
622	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
624		1122
…		…
639	";	1137	";
640	die if $@;	1138	die if $@;
641	}	1139	}
642		1140
643	our $override;	1141	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1142	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		1143
646	sub override {	1144	sub override {
647	$override = 1;	1145	$override = 1;
648	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
649	}	1147	}
650		1148
651	sub do_invoke {	1149	sub do_invoke {
652	my $event = shift;	1150	my $event = shift;
653	my $callbacks = shift;	1151	my $callbacks = shift;
654		1152
655	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
656		1154
657	local $override;	1155	local $override;
658		1156
659	for (@$callbacks) {	1157	for (@$callbacks) {
660	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
661		1159
662	if ($@) {	1160	if ($@) {
663	warn "$@";
664	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
665	override;	1162	override;
666	}	1163	}
667		1164
668	return 1 if $override;	1165	return 1 if $override;
669	}	1166	}
670		1167
671	0	1168	0
672	}	1169	}
673		1170
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1172
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1174
678	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
679		1176
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1177	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	1178	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1180
684	=back	1181	=back
685		1182
686	=cut	1183	=cut
687		1184
688	#############################################################################	1185	#############################################################################
689	# object support	1186	# object support
		1187
		1188	sub _object_equal($$);
		1189	sub _object_equal($$) {
		1190	my ($a, $b) = @_;
		1191
		1192	return 0 unless (ref $a) eq (ref $b);
		1193
		1194	if ("HASH" eq ref $a) {
		1195	my @ka = keys %$a;
		1196	my @kb = keys %$b;
		1197
		1198	return 0 if @ka != @kb;
		1199
		1200	for (0 .. $#ka) {
		1201	return 0 unless $ka[$_] eq $kb[$_];
		1202	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1203	}
		1204
		1205	} elsif ("ARRAY" eq ref $a) {
		1206
		1207	return 0 if @$a != @$b;
		1208
		1209	for (0 .. $#$a) {
		1210	return 0 unless _object_equal $a->[$_], $b->[$_];
		1211	}
		1212
		1213	} elsif ($a ne $b) {
		1214	return 0;
		1215	}
		1216
		1217	1
		1218	}
		1219
		1220	our $SLOW_MERGES;#d#
		1221	sub _can_merge {
		1222	my ($ob1, $ob2) = @_;
		1223
		1224	++$SLOW_MERGES;#d#
		1225
		1226	# we do the slow way here
		1227	return _object_equal $ob1, $ob2
		1228	}
690		1229
691	sub reattach {	1230	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1232	my ($obj) = @_;
694		1233
		1234	# no longer needed after getting rid of delete_package?
695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1235	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
696		1236
697	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
698		1238
699	@$registry = ();	1239	@$registry = ();
700		1240
…		…
705	for (@$attach) {	1245	for (@$attach) {
706	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
707	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
708	}	1248	}
709	} else {	1249	} else {
710	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
711	}	1251	}
712	}	1252	}
713	}	1253	}
714		1254
715	cf::attachable->attach (	1255	cf::attachable->attach (
716	prio => -1000000,	1256	prio => -1000000,
717	on_instantiate => sub {	1257	on_instantiate => sub {
718	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
719		1259
720	$data = from_json $data;	1260	$data = decode_json $data;
721		1261
722	for (@$data) {	1262	for (@$data) {
723	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
724		1264
725	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1281	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
743		1283
744	sync_job {	1284	sync_job {
745	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
748		1290
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1293	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1294	if ($cf::USE_FSYNC) {
		1295	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;
752	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
753	close $fh;	1298	aio_close $fh;
754		1299
755	if (@$objs) {	1300	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1301	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1304	aio_write $fh, 0, (length $data), $data, 0;
		1305	if ($cf::USE_FSYNC) {
		1306	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;
760	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
761	close $fh;	1309	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
763	}	1311	}
764	} else {	1312	} else {
765	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
766	}	1314	}
767		1315
768	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1320	} else {
770	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
771	}	1322	}
772	} else {	1323	} else {
773	aio_unlink $filename;	1324	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
775	}	1326	}
776	}	1327	};
777	}	1328	}
778		1329
779	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
781		1332
…		…
793	or return;	1344	or return;
794		1345
795	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
797	or return;	1348	or return;
		1349
798	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
799	}	1352	}
800		1353
		1354	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
803	return ($data, $av);	1359	($data, $av)
804	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
805		1367
806	#############################################################################	1368	#############################################################################
807	# command handling &c	1369	# command handling &c
808		1370
809	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1385	}
824		1386
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1388
827	Register a callbackf ro execution when the client sends an extcmd packet.	1389	Register a callback for execution when the client sends an (synchronous)
		1390	extcmd packet. Ext commands will be processed in the order they are
		1391	received by the server, like other user commands. The first argument is
		1392	the logged-in player. Ext commands can only be processed after a player
		1393	has logged in successfully.
828		1394
829	If the callback returns something, it is sent back as if reply was being	1395	If the callback returns something, it is sent back as if reply was being
830	called.	1396	called.
831		1397
		1398	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1399
		1400	Register a callback for execution when the client sends an (asynchronous)
		1401	exticmd packet. Exti commands are processed by the server as soon as they
		1402	are received, i.e. out of order w.r.t. other commands. The first argument
		1403	is a client socket. Exti commands can be received anytime, even before
		1404	log-in.
		1405
		1406	If the callback returns something, it is sent back as if reply was being
		1407	called.
		1408
832	=cut	1409	=cut
833		1410
834	sub register_extcmd {	1411	sub register_extcmd {
835	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
836		1413
837	$EXTCMD{$name} = $cb;	1414	$EXTCMD{$name} = $cb;
838	}	1415	}
839		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
		1424
840	cf::player->attach (	1425	cf::player->attach (
841	on_command => sub {	1426	on_unknown_command => sub {
842	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
843		1428
844	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
845	or return;	1430	or return;
846		1431
…		…
851	cf::override;	1436	cf::override;
852	},	1437	},
853	on_extcmd => sub {	1438	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
855		1440
856	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1442
858	if (ref $msg) {	1443	if (ref $msg) {
		1444	my ($type, $reply, @payload) =
		1445	"ARRAY" eq ref $msg
		1446	? @$msg
		1447	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1448
		1449	my @reply;
		1450
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
864	} else {	1458	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1460	}
867		1461
868	cf::override;	1462	cf::override;
869	},	1463	},
870	);	1464	);
871		1465
		1466	# "readahead" all extensions
872	sub load_extension {	1467	sub cache_extensions {
873	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
874		1469
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
876	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1473	}
900	die $@;
901	}	1474	};
902		1475
903	push @EXTS, $pkg;	1476	$grp
904	}	1477	}
905		1478
906	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
907	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1486	next unless -r $path;
909	eval {	1487
910	load_extension $ext;	1488	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1489	my $base = $1;
		1490	my $pkg = $1;
		1491	$pkg =~ s/[^[:word:]]/_/g;
		1492	$pkg = "ext::$pkg";
		1493
		1494	open my $fh, "<:utf8", $path
		1495	or die "$path: $!";
		1496
		1497	my $source = do { local $/; <$fh> };
		1498
		1499	my %ext = (
		1500	path => $path,
		1501	base => $base,
		1502	pkg => $pkg,
		1503	);
		1504
		1505	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1506	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1507
		1508	$ext{source} =
		1509	"package $pkg; use common::sense;\n"
		1510	. "#line 1 \"$path\"\n{\n"
		1511	. $source
		1512	. "\n};\n1";
		1513
		1514	$todo{$base} = \%ext;
		1515	}
		1516
		1517	my $pass = 0;
		1518	my %done;
		1519	while (%todo) {
		1520	my $progress;
		1521
		1522	++$pass;
		1523
		1524	ext:
		1525	while (my ($k, $v) = each %todo) {
		1526	for (split /,\s*/, $v->{meta}{depends}) {
		1527	next ext
		1528	unless exists $done{$_};
		1529	}
		1530
		1531	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1532
		1533	my $active = eval $v->{source};
		1534
		1535	if (length $@) {
		1536	error "$v->{path}: $@\n";
		1537
		1538	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1539	if exists $v->{meta}{mandatory};
		1540
		1541	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1542	delete $todo{$k};
		1543	} else {
		1544	$done{$k} = delete $todo{$k};
		1545	push @EXTS, $v->{pkg};
		1546	$progress = 1;
		1547
		1548	info "$v->{base}: extension inactive.\n"
		1549	unless $active;
		1550	}
911	1	1551	}
912	} or warn "$ext not loaded: $@";	1552
		1553	unless ($progress) {
		1554	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1555
		1556	while (my ($k, $v) = each %todo) {
		1557	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559	}
		1560	}
		1561	}
913	}	1562	};
914	}	1563	}
915		1564
916	#############################################################################	1565	#############################################################################
917		1566
		1567	=back
		1568
918	=head2 CORE EXTENSIONS	1569	=head2 CORE EXTENSIONS
919		1570
920	Functions and methods that extend core crossfire objects.	1571	Functions and methods that extend core deliantra objects.
921		1572
922	=cut	1573	=cut
923		1574
924	package cf::player;	1575	package cf::player;
925		1576
…		…
927		1578
928	=head3 cf::player	1579	=head3 cf::player
929		1580
930	=over 4	1581	=over 4
931		1582
		1583	=item cf::player::num_playing
		1584
		1585	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1586
		1587	=cut
		1588
		1589	sub num_playing {
		1590	scalar grep
		1591	$_->ob->map
		1592	&& !$_->hidden
		1593	&& !$_->ob->flag (cf::FLAG_WIZ),
		1594	cf::player::list
		1595	}
		1596
932	=item cf::player::find $login	1597	=item cf::player::find $login
933		1598
934	Returns the given player object, loading it if necessary (might block).	1599	Returns the given player object, loading it if necessary (might block).
935		1600
936	=cut	1601	=cut
937		1602
938	sub playerdir($) {	1603	sub playerdir($) {
939	cf::localdir	1604	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1605	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1606	}
945		1607
946	sub path($) {	1608	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1609	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1610
949	(playerdir $login) . "/$login.pl"	1611	(playerdir $login) . "/playerdata"
950	}	1612	}
951		1613
952	sub find_active($) {	1614	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1615	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1616	and $cf::PLAYER{$_[0]}->active
…		…
957		1619
958	sub exists($) {	1620	sub exists($) {
959	my ($login) = @_;	1621	my ($login) = @_;
960		1622
961	$cf::PLAYER{$login}	1623	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1624	or !aio_stat path $login
963	}	1625	}
964		1626
965	sub find($) {	1627	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1628	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1629	my $login = $_[0];
968		1630
969	my $guard = cf::lock_acquire "user_find:$login";	1631	my $guard = cf::lock_acquire "user_find:$login";
970		1632
971	$cf::PLAYER{$_[0]} || do {	1633	$cf::PLAYER{$_[0]} || do {
972	my $pl = load_pl path $login	1634	# rename old playerfiles to new ones
		1635	#TODO: remove when no longer required
		1636	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1637	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1638	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1639	aio_unlink +(playerdir $login) . "/$login.pl";
		1640
		1641	my $f = new_from_file cf::object::thawer path $login
973	or return;	1642	or return;
		1643
		1644	my $pl = cf::player::load_pl $f
		1645	or return;
		1646
		1647	local $cf::PLAYER_LOADING{$login} = $pl;
		1648	$f->resolve_delayed_derefs;
974	$cf::PLAYER{$login} = $pl	1649	$cf::PLAYER{$login} = $pl
975	}	1650	}
976	}	1651	}
977	}	1652	}
		1653
		1654	cf::player->attach (
		1655	on_load => sub {
		1656	my ($pl, $path) = @_;
		1657
		1658	# restore slots saved in save, below
		1659	my $slots = delete $pl->{_slots};
		1660
		1661	$pl->ob->current_weapon ($slots->[0]);
		1662	$pl->combat_ob ($slots->[1]);
		1663	$pl->ranged_ob ($slots->[2]);
		1664	},
		1665	);
978		1666
979	sub save($) {	1667	sub save($) {
980	my ($pl) = @_;	1668	my ($pl) = @_;
981		1669
982	return if $pl->{deny_save};	1670	return if $pl->{deny_save};
…		…
987	return if $pl->{deny_save};	1675	return if $pl->{deny_save};
988		1676
989	aio_mkdir playerdir $pl, 0770;	1677	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1678	$pl->{last_save} = $cf::RUNTIME;
991		1679
		1680	cf::get_slot 0.01;
		1681
		1682	# save slots, to be restored later
		1683	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1684
992	$pl->save_pl ($path);	1685	$pl->save_pl ($path);
993	Coro::cede;	1686	cf::cede_to_tick;
994	}	1687	}
995		1688
996	sub new($) {	1689	sub new($) {
997	my ($login) = @_;	1690	my ($login) = @_;
998		1691
…		…
1004	$cf::PLAYER{$login} = $self;	1697	$cf::PLAYER{$login} = $self;
1005		1698
1006	$self	1699	$self
1007	}	1700	}
1008		1701
		1702	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1703
		1704	=cut
		1705
		1706	sub send_msg {
		1707	my $ns = shift->ns
		1708	or return;
		1709	$ns->send_msg (@_);
		1710	}
		1711
1009	=item $pl->quit_character	1712	=item $pl->quit_character
1010		1713
1011	Nukes the player without looking back. If logged in, the connection will	1714	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1715	be destroyed. May block for a long time.
1013		1716
1014	=cut	1717	=cut
1015		1718
1016	sub quit_character {	1719	sub quit_character {
1017	my ($pl) = @_;	1720	my ($pl) = @_;
1018		1721
		1722	my $name = $pl->ob->name;
		1723
1019	$pl->{deny_save} = 1;	1724	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1725	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1021		1726
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1727	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1023	$pl->deactivate;	1728	$pl->deactivate;
		1729
		1730	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1731	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1732	ext::highscore::check ($pl->ob);
		1733
1025	$pl->ns->destroy if $pl->ns;	1734	$pl->ns->destroy if $pl->ns;
1026		1735
1027	my $path = playerdir $pl;	1736	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1737	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1738	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1739	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1740	$pl->destroy;
		1741
		1742	my $prefix = qr<^~\Q$name\E/>;
		1743
		1744	# nuke player maps
		1745	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1746
1032	IO::AIO::aio_rmtree $temp;	1747	IO::AIO::aio_rmtree $temp;
		1748	}
		1749
		1750	=item $pl->kick
		1751
		1752	Kicks a player out of the game. This destroys the connection.
		1753
		1754	=cut
		1755
		1756	sub kick {
		1757	my ($pl, $kicker) = @_;
		1758
		1759	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1760	$pl->killer ("kicked");
		1761	$pl->ns->destroy;
1033	}	1762	}
1034		1763
1035	=item cf::player::list_logins	1764	=item cf::player::list_logins
1036		1765
1037	Returns am arrayref of all valid playernames in the system, can take a	1766	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1767	while and may block, so not sync_job-capable, ever.
1039		1768
1040	=cut	1769	=cut
1041		1770
1042	sub list_logins {	1771	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1772	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1773	or return [];
1045		1774
1046	my @logins;	1775	my @logins;
1047		1776
1048	for my $login (@$dirs) {	1777	for my $login (@$dirs) {
		1778	my $path = path $login;
		1779
		1780	# a .pst is a dead give-away for a valid player
		1781	# if no pst file found, open and chekc for blocked users
		1782	if (aio_stat "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1783	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1784	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1785	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1786	}
1052		1787
1053	utf8::decode $login;	1788	utf8::decode $login;
1054	push @logins, $login;	1789	push @logins, $login;
1055	}	1790	}
1056		1791
1057	\@logins	1792	\@logins
1058	}	1793	}
1059		1794
1060	=item $player->maps	1795	=item $player->maps
1061		1796
		1797	=item cf::player::maps $login
		1798
1062	Returns an arrayref of map paths that are private for this	1799	Returns an arrayref of map paths that are private for this
1063	player. May block.	1800	player. May block.
1064		1801
1065	=cut	1802	=cut
1066		1803
1067	sub maps($) {	1804	sub maps($) {
1068	my ($pl) = @_;	1805	my ($pl) = @_;
		1806
		1807	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1808
1070	my $files = aio_readdir playerdir $pl	1809	my $files = aio_readdir playerdir $pl
1071	or return;	1810	or return;
1072		1811
1073	my @paths;	1812	my @paths;
…		…
1075	for (@$files) {	1814	for (@$files) {
1076	utf8::decode $_;	1815	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1816	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1817	next unless /^$PATH_SEP/o;
1079		1818
1080	s/\.map$//;	1819	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1820	}
1083		1821
1084	\@paths	1822	\@paths
1085	}	1823	}
1086		1824
		1825	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1826
		1827	Expand deliantra pod fragments into protocol xml.
		1828
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1829	=item $player->ext_reply ($msgid, @msg)
1088		1830
1089	Sends an ext reply to the player.	1831	Sends an ext reply to the player.
1090		1832
1091	=cut	1833	=cut
1092		1834
1093	sub ext_reply($$$%) {	1835	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1836	my ($self, $id, @msg) = @_;
1095		1837
1096	$msg{msgid} = $id;	1838	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1839	}
1100		1840
1101	package cf;	1841	=item $player->ext_msg ($type, @msg)
		1842
		1843	Sends an ext event to the client.
		1844
		1845	=cut
		1846
		1847	sub ext_msg($$@) {
		1848	my ($self, $type, @msg) = @_;
		1849
		1850	$self->ns->ext_msg ($type, @msg);
		1851	}
		1852
		1853	=head3 cf::region
		1854
		1855	=over 4
		1856
		1857	=cut
		1858
		1859	package cf::region;
		1860
		1861	=item cf::region::find_by_path $path
		1862
		1863	Tries to decuce the likely region for a map knowing only its path.
		1864
		1865	=cut
		1866
		1867	sub find_by_path($) {
		1868	my ($path) = @_;
		1869
		1870	$path =~ s/^~[^\/]*//; # skip ~login
		1871
		1872	my ($match, $specificity);
		1873
		1874	for my $region (list) {
		1875	if ($region->{match} && $path =~ $region->{match}) {
		1876	($match, $specificity) = ($region, $region->specificity)
		1877	if $region->specificity > $specificity;
		1878	}
		1879	}
		1880
		1881	$match
		1882	}
1102		1883
1103	=back	1884	=back
1104
1105		1885
1106	=head3 cf::map	1886	=head3 cf::map
1107		1887
1108	=over 4	1888	=over 4
1109		1889
…		…
1113		1893
1114	use Fcntl;	1894	use Fcntl;
1115	use Coro::AIO;	1895	use Coro::AIO;
1116		1896
1117	use overload	1897	use overload
1118	'""' => \&as_string;	1898	'""' => \&as_string,
		1899	fallback => 1;
1119		1900
1120	our $MAX_RESET = 3600;	1901	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	1902	our $DEFAULT_RESET = 3000;
1122		1903
1123	sub generate_random_map {	1904	sub generate_random_map {
1124	my ($self, $rmp) = @_;	1905	my ($self, $rmp) = @_;
1125		1906
1126	# mit "rum" bekleckern, nicht	1907	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1908
1127	$self->_create_random_map (	1909	$self->_create_random_map ($rmp);
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)
1140	}	1910	}
		1911
		1912	=item cf::map->register ($regex, $prio)
		1913
		1914	Register a handler for the map path matching the given regex at the
		1915	givne priority (higher is better, built-in handlers have priority 0, the
		1916	default).
		1917
		1918	=cut
1141		1919
1142	sub register {	1920	sub register {
1143	my (undef, $regex) = @_;	1921	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1922	my $pkg = caller;
1145		1923
1146	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1924	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1925
1149	$EXT_MAP{$pkg} = qr<$regex>;	1926	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1927	}
1151		1928
1152	# also paths starting with '/'	1929	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1930	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1154		1931
1155	sub thawer_merge {	1932	sub thawer_merge {
		1933	my ($self, $merge) = @_;
		1934
1156	# we have to keep some variables in memory intact	1935	# we have to keep some variables in memory intact
1157	local $_[0]{path};	1936	local $self->{path};
1158	local $_[0]{deny_save};	1937	local $self->{load_path};
1159	local $_[0]{deny_reset};
1160		1938
1161	$_[0]->SUPER::thawer_merge ($_[1]);	1939	$self->SUPER::thawer_merge ($merge);
1162	}	1940	}
1163		1941
1164	sub normalise {	1942	sub normalise {
1165	my ($path, $base) = @_;	1943	my ($path, $base) = @_;
		1944
		1945	$path = "$path"; # make sure it's a string
		1946
		1947	$path =~ s/\.map$//;
1166		1948
1167	# map plan:	1949	# map plan:
1168	#	1950	#
1169	# /! non-realised random map exit (special hack!)	1951	# /! non-realised random map exit (special hack!)
1170	# {... are special paths that are not being touched	1952	# {... are special paths that are not being touched
…		…
1183	$base =~ s{[^/]+/?$}{};	1965	$base =~ s{[^/]+/?$}{};
1184	$path = "$base/$path";	1966	$path = "$base/$path";
1185	}	1967	}
1186		1968
1187	for ($path) {	1969	for ($path) {
1188	redo if s{//}{/};
1189	redo if s{/\.?/}{/};	1970	redo if s{/\.?/}{/};
1190	redo if s{/[^/]+/\.\./}{/};	1971	redo if s{/[^/]+/\.\./}{/};
1191	}	1972	}
1192		1973
1193	$path	1974	$path
…		…
1198		1979
1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1980	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1200		1981
1201	$path = normalise $path, $base;	1982	$path = normalise $path, $base;
1202		1983
1203	for my $pkg (keys %EXT_MAP) {	1984	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1204	if ($path =~ $EXT_MAP{$pkg}) {	1985	if ($path =~ $EXT_MAP{$pkg}[1]) {
1205	my $self = bless cf::map::new, $pkg;	1986	my $self = bless cf::map::new, $pkg;
1206	$self->{path} = $path; $self->path ($path);	1987	$self->{path} = $path; $self->path ($path);
1207	$self->init; # pass $1 etc.	1988	$self->init; # pass $1 etc.
1208	return $self;	1989	return $self;
1209	}	1990	}
1210	}	1991	}
1211		1992
1212	Carp::carp "unable to resolve path '$path'.";	1993	Carp::cluck "unable to resolve path '$path' (base '$base')";
1213	()	1994	()
1214	}	1995	}
1215		1996
1216	sub init {	1997	sub init {
1217	my ($self) = @_;	1998	my ($self) = @_;
…		…
1232		2013
1233	# the original (read-only) location	2014	# the original (read-only) location
1234	sub load_path {	2015	sub load_path {
1235	my ($self) = @_;	2016	my ($self) = @_;
1236		2017
1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2018	"$MAPDIR/$self->{path}.map"
1238	}	2019	}
1239		2020
1240	# the temporary/swap location	2021	# the temporary/swap location
1241	sub save_path {	2022	sub save_path {
1242	my ($self) = @_;	2023	my ($self) = @_;
1243		2024
1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2025	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2026	"$TMPDIR/$path.map"
1246	}	2027	}
1247		2028
1248	# the unique path, undef == no special unique path	2029	# the unique path, undef == no special unique path
1249	sub uniq_path {	2030	sub uniq_path {
1250	my ($self) = @_;	2031	my ($self) = @_;
1251		2032
1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2033	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2034	"$UNIQUEDIR/$path"
1254	}	2035	}
1255		2036
1256	# and all this just because we cannot iterate over	2037	sub decay_objects {
1257	# all maps in C++...
1258	sub change_all_map_light {
1259	my ($change) = @_;	2038	my ($self) = @_;
1260		2039
1261	$_->change_map_light ($change)	2040	return if $self->{deny_reset};
1262	for grep $_->outdoor, values %cf::MAP;	2041
		2042	$self->do_decay_objects;
1263	}	2043	}
1264		2044
1265	sub unlink_save {	2045	sub unlink_save {
1266	my ($self) = @_;	2046	my ($self) = @_;
1267		2047
…		…
1272		2052
1273	sub load_header_from($) {	2053	sub load_header_from($) {
1274	my ($self, $path) = @_;	2054	my ($self, $path) = @_;
1275		2055
1276	utf8::encode $path;	2056	utf8::encode $path;
1277	aio_open $path, O_RDONLY, 0	2057	my $f = new_from_file cf::object::thawer $path
1278	or return;	2058	or return;
1279		2059
1280	$self->_load_header ($path)	2060	$self->_load_header ($f)
1281	or return;	2061	or return;
1282		2062
		2063	local $MAP_LOADING{$self->{path}} = $self;
		2064	$f->resolve_delayed_derefs;
		2065
1283	$self->{load_path} = $path;	2066	$self->{load_path} = $path;
1284		2067
1285	1	2068	1
1286	}	2069	}
1287		2070
1288	sub load_orig {	2071	sub load_header_orig {
1289	my ($self) = @_;	2072	my ($self) = @_;
1290		2073
1291	$self->load_header_from ($self->load_path)	2074	$self->load_header_from ($self->load_path)
1292	}	2075	}
1293		2076
1294	sub load_temp {	2077	sub load_header_temp {
1295	my ($self) = @_;	2078	my ($self) = @_;
1296		2079
1297	$self->load_header_from ($self->save_path)	2080	$self->load_header_from ($self->save_path)
		2081	}
		2082
		2083	sub prepare_temp {
		2084	my ($self) = @_;
		2085
		2086	$self->last_access ((delete $self->{last_access})
		2087	|| $cf::RUNTIME); #d#
		2088	# safety
		2089	$self->{instantiate_time} = $cf::RUNTIME
		2090	if $self->{instantiate_time} > $cf::RUNTIME;
		2091	}
		2092
		2093	sub prepare_orig {
		2094	my ($self) = @_;
		2095
		2096	$self->{load_original} = 1;
		2097	$self->{instantiate_time} = $cf::RUNTIME;
		2098	$self->last_access ($cf::RUNTIME);
		2099	$self->instantiate;
1298	}	2100	}
1299		2101
1300	sub load_header {	2102	sub load_header {
1301	my ($self) = @_;	2103	my ($self) = @_;
1302		2104
1303	if ($self->load_temp) {	2105	if ($self->load_header_temp) {
1304	$self->last_access ((delete $self->{last_access})	2106	$self->prepare_temp;
1305	|| $cf::RUNTIME); #d#
1306	# safety
1307	$self->{instantiate_time} = $cf::RUNTIME
1308	if $self->{instantiate_time} > $cf::RUNTIME;
1309	} else {	2107	} else {
1310	$self->load_orig	2108	$self->load_header_orig
1311	or return;	2109	or return;
1312		2110	$self->prepare_orig;
1313	$self->{load_original} = 1;
1314	$self->{instantiate_time} = $cf::RUNTIME;
1315	$self->last_access ($cf::RUNTIME);
1316	$self->instantiate;
1317	}	2111	}
		2112
		2113	$self->{deny_reset} = 1
		2114	if $self->no_reset;
		2115
		2116	$self->default_region (cf::region::find_by_path $self->{path})
		2117	unless $self->default_region;
1318		2118
1319	1	2119	1
1320	}	2120	}
1321		2121
1322	sub find;	2122	sub find;
1323	sub find {	2123	sub find {
1324	my ($path, $origin) = @_;	2124	my ($path, $origin) = @_;
1325		2125
		2126	cf::cede_to_tick;
		2127
1326	$path = normalise $path, $origin && $origin->path;	2128	$path = normalise $path, $origin && $origin->path;
1327		2129
		2130	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1328	cf::lock_wait "map_find:$path";	2131	my $guard2 = cf::lock_acquire "map_find:$path";
1329		2132
1330	$cf::MAP{$path} || do {	2133	$cf::MAP{$path} || do {
1331	my $guard = cf::lock_acquire "map_find:$path";
1332	my $map = new_from_path cf::map $path	2134	my $map = new_from_path cf::map $path
1333	or return;	2135	or return;
1334		2136
1335	$map->{last_save} = $cf::RUNTIME;	2137	$map->{last_save} = $cf::RUNTIME;
1336		2138
1337	$map->load_header	2139	$map->load_header
1338	or return;	2140	or return;
1339		2141
1340	if ($map->should_reset) {	2142	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2143	# doing this can freeze the server in a sync job, obviously
1341	$cf::WAIT_FOR_TICK->wait;	2144	#$cf::WAIT_FOR_TICK->wait;
		2145	undef $guard2;
		2146	undef $guard1;
1342	$map->reset;	2147	$map->reset;
1343	undef $guard;
1344	$map = find $path	2148	return find $path;
1345	or return;
1346	}	2149	}
1347		2150
1348	$cf::MAP{$path} = $map	2151	$cf::MAP{$path} = $map
1349	}	2152	}
1350	}	2153	}
		2154
		2155	sub pre_load { }
		2156	#sub post_load { } # XS
1351		2157
1352	sub load {	2158	sub load {
1353	my ($self) = @_;	2159	my ($self) = @_;
1354		2160
		2161	local $self->{deny_reset} = 1; # loading can take a long time
		2162
1355	my $path = $self->{path};	2163	my $path = $self->{path};
		2164
		2165	{
1356	my $guard = cf::lock_acquire "map_load:$path";	2166	my $guard = cf::lock_acquire "map_data:$path";
1357		2167
		2168	return unless $self->valid;
1358	return if $self->in_memory != cf::MAP_SWAPPED;	2169	return unless $self->in_memory == cf::MAP_SWAPPED;
1359		2170
1360	$self->in_memory (cf::MAP_LOADING);	2171	$self->in_memory (cf::MAP_LOADING);
1361		2172
1362	$self->alloc;	2173	$self->alloc;
1363	$self->_load_objects ($self->{load_path}, 1)	2174
		2175	$self->pre_load;
		2176	cf::cede_to_tick;
		2177
		2178	my $f = new_from_file cf::object::thawer $self->{load_path};
		2179	$f->skip_block;
		2180	$self->_load_objects ($f)
1364	or return;	2181	or return;
1365		2182
1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2183	$self->post_load_original
1367	if delete $self->{load_original};	2184	if delete $self->{load_original};
1368		2185
1369	if (my $uniq = $self->uniq_path) {	2186	if (my $uniq = $self->uniq_path) {
1370	utf8::encode $uniq;	2187	utf8::encode $uniq;
1371	if (aio_open $uniq, O_RDONLY, 0) {	2188	unless (aio_stat $uniq) {
		2189	if (my $f = new_from_file cf::object::thawer $uniq) {
1372	$self->clear_unique_items;	2190	$self->clear_unique_items;
1373	$self->_load_objects ($uniq, 0);	2191	$self->_load_objects ($f);
		2192	$f->resolve_delayed_derefs;
		2193	}
1374	}	2194	}
1375	}	2195	}
1376		2196
1377	Coro::cede;	2197	$f->resolve_delayed_derefs;
1378		2198
		2199	cf::cede_to_tick;
1379	# now do the right thing for maps	2200	# now do the right thing for maps
1380	$self->link_multipart_objects;	2201	$self->link_multipart_objects;
1381
1382	unless ($self->{deny_activate}) {
1383	$self->decay_objects;
1384	$self->fix_auto_apply;
1385	$self->update_buttons;
1386	Coro::cede;
1387	$self->set_darkness_map;
1388	$self->difficulty ($self->estimate_difficulty)	2202	$self->difficulty ($self->estimate_difficulty)
1389	unless $self->difficulty;	2203	unless $self->difficulty;
1390	Coro::cede;	2204	cf::cede_to_tick;
		2205
		2206	unless ($self->{deny_activate}) {
		2207	$self->decay_objects;
		2208	$self->fix_auto_apply;
		2209	$self->update_buttons;
		2210	cf::cede_to_tick;
1391	$self->activate;	2211	$self->activate;
1392	}	2212	}
1393		2213
		2214	$self->{last_save} = $cf::RUNTIME;
		2215	$self->last_access ($cf::RUNTIME);
		2216
1394	$self->in_memory (cf::MAP_IN_MEMORY);	2217	$self->in_memory (cf::MAP_ACTIVE);
1395	}	2218	}
1396		2219
		2220	$self->post_load;
		2221
		2222	1
		2223	}
		2224
		2225	# customize the map for a given player, i.e.
		2226	# return the _real_ map. used by e.g. per-player
		2227	# maps to change the path to ~playername/mappath
1397	sub customise_for {	2228	sub customise_for {
1398	my ($self, $ob) = @_;	2229	my ($self, $ob) = @_;
1399		2230
1400	return find "~" . $ob->name . "/" . $self->{path}	2231	return find "~" . $ob->name . "/" . $self->{path}
1401	if $self->per_player;	2232	if $self->per_player;
1402		2233
		2234	# return find "?party/" . $ob->name . "/" . $self->{path}
		2235	# if $self->per_party;
		2236
1403	$self	2237	$self
1404	}	2238	}
1405		2239
1406	# find and load all maps in the 3x3 area around a map	2240	# find and load all maps in the 3x3 area around a map
1407	sub load_diag {	2241	sub load_neighbours {
1408	my ($map) = @_;	2242	my ($map) = @_;
1409		2243
1410	my @diag; # diagonal neighbours	2244	my @neigh; # diagonal neighbours
1411		2245
1412	for (0 .. 3) {	2246	for (0 .. 3) {
1413	my $neigh = $map->tile_path ($_)	2247	my $neigh = $map->tile_path ($_)
1414	or next;	2248	or next;
1415	$neigh = find $neigh, $map	2249	$neigh = find $neigh, $map
1416	or next;	2250	or next;
1417	$neigh->load;	2251	$neigh->load;
1418		2252
		2253	# now find the diagonal neighbours
		2254	push @neigh,
1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2255	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2256	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1421	}	2257	}
1422		2258
1423	for (@diag) {	2259	for (grep defined $_->[0], @neigh) {
		2260	my ($path, $origin) = @$_;
1424	my $neigh = find @$_	2261	my $neigh = find $path, $origin
1425	or next;	2262	or next;
1426	$neigh->load;	2263	$neigh->load;
1427	}	2264	}
1428	}	2265	}
1429		2266
1430	sub find_sync {	2267	sub find_sync {
1431	my ($path, $origin) = @_;	2268	my ($path, $origin) = @_;
1432		2269
1433	cf::sync_job { find $path, $origin }	2270	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2271	if $Coro::current == $Coro::main;
		2272
		2273	find $path, $origin
1434	}	2274	}
1435		2275
1436	sub do_load_sync {	2276	sub do_load_sync {
1437	my ($map) = @_;	2277	my ($map) = @_;
1438		2278
1439	cf::sync_job { $map->load };	2279	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2280	if $Coro::current == $Coro::main;
		2281
		2282	$map->load;
1440	}	2283	}
1441		2284
1442	our %MAP_PREFETCH;	2285	our %MAP_PREFETCH;
1443	our $MAP_PREFETCHER = Coro::async {	2286	our $MAP_PREFETCHER = undef;
1444	while () {
1445	for my $path (keys %MAP_PREFETCH) {
1446	my $map = find $path
1447	or next;
1448	$map->load;
1449
1450	delete $MAP_PREFETCH{$path};
1451	}
1452	Coro::schedule;
1453	}
1454	};
1455		2287
1456	sub find_async {	2288	sub find_async {
1457	my ($path, $origin) = @_;	2289	my ($path, $origin, $load) = @_;
1458		2290
1459	$path = normalise $path, $origin && $origin->{path};	2291	$path = normalise $path, $origin && $origin->{path};
1460		2292
1461	if (my $map = $cf::MAP{$path}) {	2293	if (my $map = $cf::MAP{$path}) {
1462	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2294	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2295	}
		2296
		2297	$MAP_PREFETCH{$path} |= $load;
		2298
		2299	$MAP_PREFETCHER ||= cf::async {
		2300	$Coro::current->{desc} = "map prefetcher";
		2301
		2302	while (%MAP_PREFETCH) {
		2303	while (my ($k, $v) = each %MAP_PREFETCH) {
		2304	if (my $map = find $k) {
		2305	$map->load if $v;
		2306	}
		2307
		2308	delete $MAP_PREFETCH{$k};
		2309	}
		2310	}
		2311	undef $MAP_PREFETCHER;
1463	}	2312	};
1464
1465	$MAP_PREFETCH{$path} = 0;
1466	$MAP_PREFETCHER->ready;	2313	$MAP_PREFETCHER->prio (6);
1467		2314
1468	()	2315	()
1469	}	2316	}
1470		2317
		2318	# common code, used by both ->save and ->swapout
1471	sub save {	2319	sub _save {
1472	my ($self) = @_;	2320	my ($self) = @_;
1473
1474	my $lock = cf::lock_acquire "map_data:" . $self->path;
1475		2321
1476	$self->{last_save} = $cf::RUNTIME;	2322	$self->{last_save} = $cf::RUNTIME;
1477		2323
1478	return unless $self->dirty;	2324	return unless $self->dirty;
1479		2325
…		…
1485	return if $self->{deny_save};	2331	return if $self->{deny_save};
1486		2332
1487	local $self->{last_access} = $self->last_access;#d#	2333	local $self->{last_access} = $self->last_access;#d#
1488		2334
1489	cf::async {	2335	cf::async {
		2336	$Coro::current->{desc} = "map player save";
1490	$_->contr->save for $self->players;	2337	$_->contr->save for $self->players;
1491	};	2338	};
		2339
		2340	cf::get_slot 0.02;
1492		2341
1493	if ($uniq) {	2342	if ($uniq) {
1494	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2343	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2344	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1496	} else {	2345	} else {
1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2346	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1498	}	2347	}
1499	}	2348	}
1500		2349
		2350	sub save {
		2351	my ($self) = @_;
		2352
		2353	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2354
		2355	$self->_save;
		2356	}
		2357
1501	sub swap_out {	2358	sub swap_out {
1502	my ($self) = @_;	2359	my ($self) = @_;
1503		2360
1504	# save first because save cedes
1505	$self->save;
1506
1507	my $lock = cf::lock_acquire "map_data:" . $self->path;	2361	my $lock = cf::lock_acquire "map_data:$self->{path}";
1508		2362
		2363	return if $self->in_memory != cf::MAP_ACTIVE;
		2364	return if $self->{deny_save};
1509	return if $self->players;	2365	return if $self->players;
1510	return if $self->in_memory != cf::MAP_IN_MEMORY;
1511	return if $self->{deny_save};
1512		2366
		2367	# first deactivate the map and "unlink" it from the core
		2368	$self->deactivate;
		2369	$_->clear_links_to ($self) for values %cf::MAP;
		2370	$self->in_memory (cf::MAP_SWAPPED);
		2371
		2372	# then atomically save
		2373	$self->_save;
		2374
		2375	# then free the map
1513	$self->clear;	2376	$self->clear;
1514	$self->in_memory (cf::MAP_SWAPPED);
1515	}	2377	}
1516		2378
1517	sub reset_at {	2379	sub reset_at {
1518	my ($self) = @_;	2380	my ($self) = @_;
1519		2381
1520	# TODO: safety, remove and allow resettable per-player maps	2382	# TODO: safety, remove and allow resettable per-player maps
1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
1522	return 1e99 if $self->{deny_reset};	2383	return 1e99 if $self->{deny_reset};
1523		2384
1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2385	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1525	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2386	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1526		2387
…		…
1531	my ($self) = @_;	2392	my ($self) = @_;
1532		2393
1533	$self->reset_at <= $cf::RUNTIME	2394	$self->reset_at <= $cf::RUNTIME
1534	}	2395	}
1535		2396
1536	sub rename {
1537	my ($self, $new_path) = @_;
1538
1539	normalise $new_path;
1540
1541	$self->unlink_save;
1542
1543	delete $cf::MAP{$self->path};
1544	$self->{path} = $new_path; $self->path ($self->{path});
1545	$cf::MAP{$self->path} = $self;
1546
1547	$self->save;
1548	}
1549
1550	sub reset {	2397	sub reset {
1551	my ($self) = @_;	2398	my ($self) = @_;
1552		2399
1553	my $lock = cf::lock_acquire "map_data:$self->{path}";	2400	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2401
1555	return if $self->players;	2402	return if $self->players;
1556	return if $self->isa ("ext::map_per_player");#d#
1557		2403
1558	warn "resetting map ", $self->path;#d#	2404	cf::trace "resetting map ", $self->path, "\n";
		2405
		2406	$self->in_memory (cf::MAP_SWAPPED);
		2407
		2408	# need to save uniques path
		2409	unless ($self->{deny_save}) {
		2410	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2411
		2412	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2413	if $uniq;
		2414	}
1559		2415
1560	delete $cf::MAP{$self->path};	2416	delete $cf::MAP{$self->path};
1561		2417
1562	$self->in_memory (cf::MAP_SWAPPED);	2418	$self->deactivate;
		2419	$_->clear_links_to ($self) for values %cf::MAP;
1563	$self->clear;	2420	$self->clear;
1564
1565	$_->clear_links_to ($self) for values %cf::MAP;
1566		2421
1567	$self->unlink_save;	2422	$self->unlink_save;
1568	$self->destroy;	2423	$self->destroy;
1569	}	2424	}
1570		2425
1571	my $nuke_counter = "aaaa";	2426	my $nuke_counter = "aaaa";
1572		2427
1573	sub nuke {	2428	sub nuke {
1574	my ($self) = @_;	2429	my ($self) = @_;
1575		2430
		2431	{
		2432	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2433
		2434	delete $cf::MAP{$self->path};
		2435
		2436	$self->unlink_save;
		2437
		2438	bless $self, "cf::map::wrap";
		2439	delete $self->{deny_reset};
1576	$self->{deny_save} = 1;	2440	$self->{deny_save} = 1;
1577	$self->reset_timeout (1);	2441	$self->reset_timeout (1);
1578	$self->rename ("{nuke}/" . ($nuke_counter++));	2442	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2443
		2444	$cf::MAP{$self->path} = $self;
		2445	}
		2446
1579	$self->reset; # polite request, might not happen	2447	$self->reset; # polite request, might not happen
		2448	}
		2449
		2450	=item $maps = cf::map::tmp_maps
		2451
		2452	Returns an arrayref with all map paths of currently instantiated and saved
		2453	maps. May block.
		2454
		2455	=cut
		2456
		2457	sub tmp_maps() {
		2458	[
		2459	map {
		2460	utf8::decode $_;
		2461	/\.map$/
		2462	? normalise $_
		2463	: ()
		2464	} @{ aio_readdir $TMPDIR or [] }
		2465	]
		2466	}
		2467
		2468	=item $maps = cf::map::random_maps
		2469
		2470	Returns an arrayref with all map paths of currently instantiated and saved
		2471	random maps. May block.
		2472
		2473	=cut
		2474
		2475	sub random_maps() {
		2476	[
		2477	map {
		2478	utf8::decode $_;
		2479	/\.map$/
		2480	? normalise "?random/$_"
		2481	: ()
		2482	} @{ aio_readdir $RANDOMDIR or [] }
		2483	]
1580	}	2484	}
1581		2485
1582	=item cf::map::unique_maps	2486	=item cf::map::unique_maps
1583		2487
1584	Returns an arrayref of paths of all shared maps that have	2488	Returns an arrayref of paths of all shared maps that have
1585	instantiated unique items. May block.	2489	instantiated unique items. May block.
1586		2490
1587	=cut	2491	=cut
1588		2492
1589	sub unique_maps() {	2493	sub unique_maps() {
1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2494	[
1591	or return;	2495	map {
1592
1593	my @paths;
1594
1595	for (@$files) {
1596	utf8::decode $_;	2496	utf8::decode $_;
1597	next if /\.pst$/;	2497	s/\.map$//; # TODO future compatibility hack
1598	next unless /^$PATH_SEP/o;	2498	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2499	? ()
		2500	: normalise $_
		2501	} @{ aio_readdir $UNIQUEDIR or [] }
		2502	]
		2503	}
1599		2504
		2505	=item cf::map::static_maps
		2506
		2507	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2508	file in the shared directory excluding F</styles> and F</editor>). May
		2509	block.
		2510
		2511	=cut
		2512
		2513	sub static_maps() {
		2514	my @dirs = "";
		2515	my @maps;
		2516
		2517	while (@dirs) {
		2518	my $dir = shift @dirs;
		2519
		2520	next if $dir eq "/styles" || $dir eq "/editor";
		2521
		2522	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2523	or return;
		2524
		2525	for (@$files) {
1600	s/\.map$//;	2526	s/\.map$// or next;
1601	push @paths, $_;	2527	utf8::decode $_;
1602	}	2528	push @maps, "$dir/$_";
		2529	}
1603		2530
1604	\@paths	2531	push @dirs, map "$dir/$_", @$dirs;
1605	}	2532	}
1606		2533
1607	package cf;	2534	\@maps
		2535	}
1608		2536
1609	=back	2537	=back
1610		2538
1611	=head3 cf::object	2539	=head3 cf::object
1612		2540
…		…
1616		2544
1617	=over 4	2545	=over 4
1618		2546
1619	=item $ob->inv_recursive	2547	=item $ob->inv_recursive
1620		2548
1621	Returns the inventory of the object _and_ their inventories, recursively.	2549	Returns the inventory of the object I<and> their inventories, recursively,
		2550	but I<not> the object itself.
1622		2551
1623	=cut	2552	=cut
1624		2553
1625	sub inv_recursive_;	2554	sub inv_recursive_;
1626	sub inv_recursive_ {	2555	sub inv_recursive_ {
…		…
1629		2558
1630	sub inv_recursive {	2559	sub inv_recursive {
1631	inv_recursive_ inv $_[0]	2560	inv_recursive_ inv $_[0]
1632	}	2561	}
1633		2562
		2563	=item $ref = $ob->ref
		2564
		2565	Creates and returns a persistent reference to an object that can be stored as a string.
		2566
		2567	=item $ob = cf::object::deref ($refstring)
		2568
		2569	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2570	even if the object actually exists. May block.
		2571
		2572	=cut
		2573
		2574	sub deref {
		2575	my ($ref) = @_;
		2576
		2577	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2578	my ($uuid, $name) = ($1, $2);
		2579	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2580	or return;
		2581	$pl->ob->uuid eq $uuid
		2582	or return;
		2583
		2584	$pl->ob
		2585	} else {
		2586	warn "$ref: cannot resolve object reference\n";
		2587	undef
		2588	}
		2589	}
		2590
1634	package cf;	2591	package cf;
1635		2592
1636	=back	2593	=back
1637		2594
1638	=head3 cf::object::player	2595	=head3 cf::object::player
…		…
1644	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2601	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1645	can be C<undef>. Does the right thing when the player is currently in a	2602	can be C<undef>. Does the right thing when the player is currently in a
1646	dialogue with the given NPC character.	2603	dialogue with the given NPC character.
1647		2604
1648	=cut	2605	=cut
		2606
		2607	our $SAY_CHANNEL = {
		2608	id => "say",
		2609	title => "Map",
		2610	reply => "say ",
		2611	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2612	};
		2613
		2614	our $CHAT_CHANNEL = {
		2615	id => "chat",
		2616	title => "Chat",
		2617	reply => "chat ",
		2618	tooltip => "Player chat and shouts, global to the server.",
		2619	};
1649		2620
1650	# rough implementation of a future "reply" method that works	2621	# rough implementation of a future "reply" method that works
1651	# with dialog boxes.	2622	# with dialog boxes.
1652	#TODO: the first argument must go, split into a $npc->reply_to ( method	2623	#TODO: the first argument must go, split into a $npc->reply_to ( method
1653	sub cf::object::player::reply($$$;$) {	2624	sub cf::object::player::reply($$$;$) {
…		…
1655		2626
1656	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2627	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1657		2628
1658	if ($self->{record_replies}) {	2629	if ($self->{record_replies}) {
1659	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2630	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2631
1660	} else {	2632	} else {
		2633	my $pl = $self->contr;
		2634
		2635	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2636	my $dialog = $pl->{npc_dialog};
		2637	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2638
		2639	} else {
1661	$msg = $npc->name . " says: $msg" if $npc;	2640	$msg = $npc->name . " says: $msg" if $npc;
1662	$self->message ($msg, $flags);	2641	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2642	}
1663	}	2643	}
		2644	}
		2645
		2646	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2647
		2648	=cut
		2649
		2650	sub cf::object::send_msg {
		2651	my $pl = shift->contr
		2652	or return;
		2653	$pl->send_msg (@_);
1664	}	2654	}
1665		2655
1666	=item $player_object->may ("access")	2656	=item $player_object->may ("access")
1667		2657
1668	Returns wether the given player is authorized to access resource "access"	2658	Returns wether the given player is authorized to access resource "access"
…		…
1681		2671
1682	=item $player_object->enter_link	2672	=item $player_object->enter_link
1683		2673
1684	Freezes the player and moves him/her to a special map (C<{link}>).	2674	Freezes the player and moves him/her to a special map (C<{link}>).
1685		2675
1686	The player should be reasonably safe there for short amounts of time. You	2676	The player should be reasonably safe there for short amounts of time (e.g.
1687	I<MUST> call C<leave_link> as soon as possible, though.	2677	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2678	though, as the player cannot control the character while it is on the link
		2679	map.
1688		2680
1689	Will never block.	2681	Will never block.
1690		2682
1691	=item $player_object->leave_link ($map, $x, $y)	2683	=item $player_object->leave_link ($map, $x, $y)
1692		2684
…		…
1700	=cut	2692	=cut
1701		2693
1702	sub link_map {	2694	sub link_map {
1703	unless ($LINK_MAP) {	2695	unless ($LINK_MAP) {
1704	$LINK_MAP = cf::map::find "{link}"	2696	$LINK_MAP = cf::map::find "{link}"
1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2697	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1706	$LINK_MAP->load;	2698	$LINK_MAP->load;
1707	}	2699	}
1708		2700
1709	$LINK_MAP	2701	$LINK_MAP
1710	}	2702	}
…		…
1712	sub cf::object::player::enter_link {	2704	sub cf::object::player::enter_link {
1713	my ($self) = @_;	2705	my ($self) = @_;
1714		2706
1715	$self->deactivate_recursive;	2707	$self->deactivate_recursive;
1716		2708
		2709	++$self->{_link_recursion};
		2710
1717	return if UNIVERSAL::isa $self->map, "ext::map_link";	2711	return if UNIVERSAL::isa $self->map, "ext::map_link";
1718		2712
1719	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2713	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1720	if $self->map;	2714	if $self->map && $self->map->{path} ne "{link}";
1721		2715
1722	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2716	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1723	}	2717	}
1724		2718
1725	sub cf::object::player::leave_link {	2719	sub cf::object::player::leave_link {
1726	my ($self, $map, $x, $y) = @_;	2720	my ($self, $map, $x, $y) = @_;
		2721
		2722	return unless $self->contr->active;
1727		2723
1728	my $link_pos = delete $self->{_link_pos};	2724	my $link_pos = delete $self->{_link_pos};
1729		2725
1730	unless ($map) {	2726	unless ($map) {
1731	# restore original map position	2727	# restore original map position
…		…
1742	($x, $y) = (-1, -1)	2738	($x, $y) = (-1, -1)
1743	unless (defined $x) && (defined $y);	2739	unless (defined $x) && (defined $y);
1744		2740
1745	# use -1 or undef as default coordinates, not 0, 0	2741	# use -1 or undef as default coordinates, not 0, 0
1746	($x, $y) = ($map->enter_x, $map->enter_y)	2742	($x, $y) = ($map->enter_x, $map->enter_y)
1747	if $x <=0 && $y <= 0;	2743	if $x <= 0 && $y <= 0;
1748		2744
1749	$map->load;	2745	$map->load;
1750	$map->load_diag;	2746	$map->load_neighbours;
1751		2747
1752	return unless $self->contr->active;	2748	return unless $self->contr->active;
		2749
		2750	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2751	if ($self->enter_map ($map, $x, $y)) {
		2752	# entering was successful
		2753	delete $self->{_link_recursion};
		2754	# only activate afterwards, to support waiting in hooks
1753	$self->activate_recursive;	2755	$self->activate_recursive;
1754	$self->enter_map ($map, $x, $y);
1755	}
1756
1757	cf::player->attach (
1758	on_logout => sub {
1759	my ($pl) = @_;
1760
1761	# abort map switching before logout
1762	if ($pl->ob->{_link_pos}) {
1763	cf::sync_job {
1764	$pl->ob->leave_link
1765	};
1766	}
1767	},	2756	}
1768	on_login => sub {
1769	my ($pl) = @_;
1770		2757
1771	# try to abort aborted map switching on player login :)	2758	}
1772	# should happen only on crashes
1773	if ($pl->ob->{_link_pos}) {
1774	$pl->ob->enter_link;
1775	(async {
1776	# we need this sleep as the login has a concurrent enter_exit running
1777	# and this sleep increases chances of the player not ending up in scorn
1778	$pl->ob->reply (undef,
1779	"There was an internal problem at your last logout, "
1780	. "the server will try to bring you to your intended destination in a second.",
1781	cf::NDI_RED);
1782	Coro::Timer::sleep 1;
1783	$pl->ob->leave_link;
1784	})->prio (2);
1785	}
1786	},
1787	);
1788		2759
1789	=item $player_object->goto ($path, $x, $y)	2760	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1790		2761
		2762	Moves the player to the given map-path and coordinates by first freezing
		2763	her, loading and preparing them map, calling the provided $check callback
		2764	that has to return the map if sucecssful, and then unfreezes the player on
		2765	the new (success) or old (failed) map position. In either case, $done will
		2766	be called at the end of this process.
		2767
		2768	Note that $check will be called with a potentially non-loaded map, so if
		2769	it needs a loaded map it has to call C<< ->load >>.
		2770
1791	=cut	2771	=cut
		2772
		2773	our $GOTOGEN;
1792		2774
1793	sub cf::object::player::goto {	2775	sub cf::object::player::goto {
1794	my ($self, $path, $x, $y) = @_;	2776	my ($self, $path, $x, $y, $check, $done) = @_;
		2777
		2778	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2779	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2780	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2781	($path, $x, $y) = @$EMERGENCY_POSITION;
		2782	}
		2783
		2784	# do generation counting so two concurrent goto's will be executed in-order
		2785	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1795		2786
1796	$self->enter_link;	2787	$self->enter_link;
1797		2788
1798	(async {	2789	(async {
1799	my $map = cf::map::find $path;	2790	$Coro::current->{desc} = "player::goto $path $x $y";
		2791
		2792	# *tag paths override both path and x|y
		2793	if ($path =~ /^\*(.*)$/) {
		2794	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2795	my $ob = $obs[rand @obs];
		2796
		2797	# see if we actually can go there
		2798	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2799	$ob = $obs[rand @obs];
		2800	} else {
		2801	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2802	}
		2803	# else put us there anyways for now #d#
		2804
		2805	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2806	} else {
		2807	($path, $x, $y) = (undef, undef, undef);
		2808	}
		2809	}
		2810
		2811	my $map = eval {
		2812	my $map = defined $path ? cf::map::find $path : undef;
		2813
		2814	if ($map) {
1800	$map = $map->customise_for ($self) if $map;	2815	$map = $map->customise_for ($self);
1801		2816	$map = $check->($map, $x, $y, $self) if $check && $map;
1802	# warn "entering ", $map->path, " at ($x, $y)\n"	2817	} else {
1803	# if $map;
1804
1805	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2818	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2819	}
1806		2820
		2821	$map
		2822	};
		2823
		2824	if ($@) {
		2825	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2826	LOG llevError | logBacktrace, Carp::longmess $@;
		2827	}
		2828
		2829	if ($gen == $self->{_goto_generation}) {
		2830	delete $self->{_goto_generation};
1807	$self->leave_link ($map, $x, $y);	2831	$self->leave_link ($map, $x, $y);
		2832	}
		2833
		2834	$done->($self) if $done;
1808	})->prio (1);	2835	})->prio (1);
1809	}	2836	}
1810		2837
1811	=item $player_object->enter_exit ($exit_object)	2838	=item $player_object->enter_exit ($exit_object)
1812		2839
…		…
1814		2841
1815	sub parse_random_map_params {	2842	sub parse_random_map_params {
1816	my ($spec) = @_;	2843	my ($spec) = @_;
1817		2844
1818	my $rmp = { # defaults	2845	my $rmp = { # defaults
1819	xsize => 10,	2846	xsize => (cf::rndm 15, 40),
1820	ysize => 10,	2847	ysize => (cf::rndm 15, 40),
		2848	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2849	#layout => string,
1821	};	2850	};
1822		2851
1823	for (split /\n/, $spec) {	2852	for (split /\n/, $spec) {
1824	my ($k, $v) = split /\s+/, $_, 2;	2853	my ($k, $v) = split /\s+/, $_, 2;
1825		2854
…		…
1837	# that depends on the exit object	2866	# that depends on the exit object
1838		2867
1839	my $rmp = parse_random_map_params $exit->msg;	2868	my $rmp = parse_random_map_params $exit->msg;
1840		2869
1841	if ($exit->map) {	2870	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	2871	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	2872	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	2873	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	2874	$rmp->{origin_y} = $exit->y;
		2875
		2876	$exit->map->touch;
1846	}	2877	}
1847		2878
1848	$rmp->{random_seed} ||= $exit->random_seed;	2879	$rmp->{random_seed} ||= $exit->random_seed;
1849		2880
1850	my $data = cf::to_json $rmp;	2881	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1851	my $md5 = Digest::MD5::md5_hex $data;	2882	my $md5 = Digest::MD5::md5_hex $data;
		2883	my $meta = "$RANDOMDIR/$md5.meta";
1852		2884
1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2885	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1854	aio_write $fh, 0, (length $data), $data, 0;	2886	aio_write $fh, 0, (length $data), $data, 0;
		2887	undef $fh;
		2888	aio_rename "$meta~", $meta;
1855		2889
		2890	my $slaying = "?random/$md5";
		2891
		2892	if ($exit->valid) {
1856	$exit->slaying ("?random/$md5");	2893	$exit->slaying ("?random/$md5");
1857	$exit->msg (undef);	2894	$exit->msg (undef);
		2895	}
1858	}	2896	}
1859	}	2897	}
1860		2898
1861	sub cf::object::player::enter_exit {	2899	sub cf::object::player::enter_exit {
1862	my ($self, $exit) = @_;	2900	my ($self, $exit) = @_;
…		…
1864	return unless $self->type == cf::PLAYER;	2902	return unless $self->type == cf::PLAYER;
1865		2903
1866	$self->enter_link;	2904	$self->enter_link;
1867		2905
1868	(async {	2906	(async {
1869	$self->deactivate_recursive; # just to be sure	2907	$Coro::current->{desc} = "enter_exit";
		2908
1870	unless (eval {	2909	unless (eval {
		2910	$self->deactivate_recursive; # just to be sure
		2911
		2912	# random map handling
		2913	{
		2914	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2915
1871	prepare_random_map $exit	2916	prepare_random_map $exit
1872	if $exit->slaying eq "/!";	2917	if $exit->slaying eq "/!";
		2918	}
1873		2919
1874	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2920	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2921	my $x = $exit->stats->hp;
		2922	my $y = $exit->stats->sp;
1876		2923
		2924	$self->goto ($map, $x, $y);
		2925
		2926	# if exit is damned, update players death & WoR home-position
		2927	$self->contr->savebed ($map, $x, $y)
		2928	if $exit->flag (cf::FLAG_DAMNED);
		2929
1877	1;	2930	1
1878	}) {	2931	}) {
1879	$self->message ("Something went wrong deep within the crossfire server. "	2932	$self->message ("Something went wrong deep within the deliantra server. "
1880	. "I'll try to bring you back to the map you were before. "	2933	. "I'll try to bring you back to the map you were before. "
1881	. "Please report this to the dungeon master!",	2934	. "Please report this to the dungeon master!",
1882	cf::NDI_UNIQUE | cf::NDI_RED);	2935	cf::NDI_UNIQUE | cf::NDI_RED);
1883		2936
1884	warn "ERROR in enter_exit: $@";	2937	error "ERROR in enter_exit: $@";
1885	$self->leave_link;	2938	$self->leave_link;
1886	}	2939	}
1887	})->prio (1);	2940	})->prio (1);
1888	}	2941	}
1889		2942
…		…
1900		2953
1901	sub cf::client::send_drawinfo {	2954	sub cf::client::send_drawinfo {
1902	my ($self, $text, $flags) = @_;	2955	my ($self, $text, $flags) = @_;
1903		2956
1904	utf8::encode $text;	2957	utf8::encode $text;
1905	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2958	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1906	}	2959	}
1907		2960
		2961	=item $client->send_big_packet ($pkt)
		2962
		2963	Like C<send_packet>, but tries to compress large packets, and fragments
		2964	them as required.
		2965
		2966	=cut
		2967
		2968	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2969
		2970	sub cf::client::send_big_packet {
		2971	my ($self, $pkt) = @_;
		2972
		2973	# try lzf for large packets
		2974	$pkt = "lzf " . Compress::LZF::compress $pkt
		2975	if 1024 <= length $pkt and $self->{can_lzf};
		2976
		2977	# split very large packets
		2978	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2979	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2980	$pkt = "frag";
		2981	}
		2982
		2983	$self->send_packet ($pkt);
		2984	}
		2985
		2986	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2987
		2988	Send a drawinfo or msg packet to the client, formatting the msg for the
		2989	client if neccessary. C<$type> should be a string identifying the type of
		2990	the message, with C<log> being the default. If C<$color> is negative, suppress
		2991	the message unless the client supports the msg packet.
		2992
		2993	=cut
		2994
		2995	# non-persistent channels (usually the info channel)
		2996	our %CHANNEL = (
		2997	"c/motd" => {
		2998	id => "infobox",
		2999	title => "MOTD",
		3000	reply => undef,
		3001	tooltip => "The message of the day",
		3002	},
		3003	"c/identify" => {
		3004	id => "infobox",
		3005	title => "Identify",
		3006	reply => undef,
		3007	tooltip => "Items recently identified",
		3008	},
		3009	"c/examine" => {
		3010	id => "infobox",
		3011	title => "Examine",
		3012	reply => undef,
		3013	tooltip => "Signs and other items you examined",
		3014	},
		3015	"c/shopinfo" => {
		3016	id => "infobox",
		3017	title => "Shop Info",
		3018	reply => undef,
		3019	tooltip => "What your bargaining skill tells you about the shop",
		3020	},
		3021	"c/book" => {
		3022	id => "infobox",
		3023	title => "Book",
		3024	reply => undef,
		3025	tooltip => "The contents of a note or book",
		3026	},
		3027	"c/lookat" => {
		3028	id => "infobox",
		3029	title => "Look",
		3030	reply => undef,
		3031	tooltip => "What you saw there",
		3032	},
		3033	"c/who" => {
		3034	id => "infobox",
		3035	title => "Players",
		3036	reply => undef,
		3037	tooltip => "Shows players who are currently online",
		3038	},
		3039	"c/body" => {
		3040	id => "infobox",
		3041	title => "Body Parts",
		3042	reply => undef,
		3043	tooltip => "Shows which body parts you posess and are available",
		3044	},
		3045	"c/statistics" => {
		3046	id => "infobox",
		3047	title => "Statistics",
		3048	reply => undef,
		3049	tooltip => "Shows your primary statistics",
		3050	},
		3051	"c/skills" => {
		3052	id => "infobox",
		3053	title => "Skills",
		3054	reply => undef,
		3055	tooltip => "Shows your experience per skill and item power",
		3056	},
		3057	"c/shopitems" => {
		3058	id => "infobox",
		3059	title => "Shop Items",
		3060	reply => undef,
		3061	tooltip => "Shows the items currently for sale in this shop",
		3062	},
		3063	"c/resistances" => {
		3064	id => "infobox",
		3065	title => "Resistances",
		3066	reply => undef,
		3067	tooltip => "Shows your resistances",
		3068	},
		3069	"c/pets" => {
		3070	id => "infobox",
		3071	title => "Pets",
		3072	reply => undef,
		3073	tooltip => "Shows information abotu your pets/a specific pet",
		3074	},
		3075	"c/perceiveself" => {
		3076	id => "infobox",
		3077	title => "Perceive Self",
		3078	reply => undef,
		3079	tooltip => "You gained detailed knowledge about yourself",
		3080	},
		3081	"c/uptime" => {
		3082	id => "infobox",
		3083	title => "Uptime",
		3084	reply => undef,
		3085	tooltip => "How long the server has been running since last restart",
		3086	},
		3087	"c/mapinfo" => {
		3088	id => "infobox",
		3089	title => "Map Info",
		3090	reply => undef,
		3091	tooltip => "Information related to the maps",
		3092	},
		3093	"c/party" => {
		3094	id => "party",
		3095	title => "Party",
		3096	reply => "gsay ",
		3097	tooltip => "Messages and chat related to your party",
		3098	},
		3099	"c/death" => {
		3100	id => "death",
		3101	title => "Death",
		3102	reply => undef,
		3103	tooltip => "Reason for and more info about your most recent death",
		3104	},
		3105	"c/say" => $SAY_CHANNEL,
		3106	"c/chat" => $CHAT_CHANNEL,
		3107	);
		3108
		3109	sub cf::client::send_msg {
		3110	my ($self, $channel, $msg, $color, @extra) = @_;
		3111
		3112	$msg = $self->pl->expand_cfpod ($msg)
		3113	unless $color & cf::NDI_VERBATIM;
		3114
		3115	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3116
		3117	# check predefined channels, for the benefit of C
		3118	if ($CHANNEL{$channel}) {
		3119	$channel = $CHANNEL{$channel};
		3120
		3121	$self->ext_msg (channel_info => $channel);
		3122	$channel = $channel->{id};
		3123
		3124	} elsif (ref $channel) {
		3125	# send meta info to client, if not yet sent
		3126	unless (exists $self->{channel}{$channel->{id}}) {
		3127	$self->{channel}{$channel->{id}} = $channel;
		3128	$self->ext_msg (channel_info => $channel);
		3129	}
		3130
		3131	$channel = $channel->{id};
		3132	}
		3133
		3134	return unless @extra || length $msg;
		3135
		3136	# default colour, mask it out
		3137	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3138	if $color & cf::NDI_DEF;
		3139
		3140	my $pkt = "msg "
		3141	. $self->{json_coder}->encode (
		3142	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3143	);
		3144
		3145	$self->send_big_packet ($pkt);
		3146	}
		3147
		3148	=item $client->ext_msg ($type, @msg)
		3149
		3150	Sends an ext event to the client.
		3151
		3152	=cut
		3153
		3154	sub cf::client::ext_msg($$@) {
		3155	my ($self, $type, @msg) = @_;
		3156
		3157	if ($self->extcmd == 2) {
		3158	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3159	} elsif ($self->extcmd == 1) { # TODO: remove
		3160	push @msg, msgtype => "event_$type";
		3161	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3162	}
		3163	}
		3164
		3165	=item $client->ext_reply ($msgid, @msg)
		3166
		3167	Sends an ext reply to the client.
		3168
		3169	=cut
		3170
		3171	sub cf::client::ext_reply($$@) {
		3172	my ($self, $id, @msg) = @_;
		3173
		3174	if ($self->extcmd == 2) {
		3175	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3176	} elsif ($self->extcmd == 1) {
		3177	#TODO: version 1, remove
		3178	unshift @msg, msgtype => "reply", msgid => $id;
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
1908		3182
1909	=item $success = $client->query ($flags, "text", \&cb)	3183	=item $success = $client->query ($flags, "text", \&cb)
1910		3184
1911	Queues a query to the client, calling the given callback with	3185	Queues a query to the client, calling the given callback with
1912	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3186	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1913	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3187	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1914		3188
1915	Queries can fail, so check the return code. Or don't, as queries will become	3189	Queries can fail, so check the return code. Or don't, as queries will
1916	reliable at some point in the future.	3190	become reliable at some point in the future.
1917		3191
1918	=cut	3192	=cut
1919		3193
1920	sub cf::client::query {	3194	sub cf::client::query {
1921	my ($self, $flags, $text, $cb) = @_;	3195	my ($self, $flags, $text, $cb) = @_;
…		…
1929	utf8::encode $text;	3203	utf8::encode $text;
1930	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3204	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1931		3205
1932	$self->send_packet ($self->{query_queue}[0][0])	3206	$self->send_packet ($self->{query_queue}[0][0])
1933	if @{ $self->{query_queue} } == 1;	3207	if @{ $self->{query_queue} } == 1;
		3208
		3209	1
1934	}	3210	}
1935		3211
1936	cf::client->attach (	3212	cf::client->attach (
		3213	on_connect => sub {
		3214	my ($ns) = @_;
		3215
		3216	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3217	},
1937	on_reply => sub {	3218	on_reply => sub {
1938	my ($ns, $msg) = @_;	3219	my ($ns, $msg) = @_;
1939		3220
1940	# this weird shuffling is so that direct followup queries	3221	# this weird shuffling is so that direct followup queries
1941	# get handled first	3222	# get handled first
1942	my $queue = delete $ns->{query_queue}	3223	my $queue = delete $ns->{query_queue}
1943	or return; # be conservative, not sure how that can happen, but we saw a crash here	3224	or return; # be conservative, not sure how that can happen, but we saw a crash here
1944		3225
1945	(shift @$queue)->[1]->($msg);	3226	(shift @$queue)->[1]->($msg);
		3227	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1946		3228
1947	push @{ $ns->{query_queue} }, @$queue;	3229	push @{ $ns->{query_queue} }, @$queue;
1948		3230
1949	if (@{ $ns->{query_queue} } == @$queue) {	3231	if (@{ $ns->{query_queue} } == @$queue) {
1950	if (@$queue) {	3232	if (@$queue) {
…		…
1952	} else {	3234	} else {
1953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3235	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1954	}	3236	}
1955	}	3237	}
1956	},	3238	},
		3239	on_exticmd => sub {
		3240	my ($ns, $buf) = @_;
		3241
		3242	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3243
		3244	if (ref $msg) {
		3245	my ($type, $reply, @payload) =
		3246	"ARRAY" eq ref $msg
		3247	? @$msg
		3248	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3249
		3250	my @reply;
		3251
		3252	if (my $cb = $EXTICMD{$type}) {
		3253	@reply = $cb->($ns, @payload);
		3254	}
		3255
		3256	$ns->ext_reply ($reply, @reply)
		3257	if $reply;
		3258
		3259	} else {
		3260	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3261	}
		3262
		3263	cf::override;
		3264	},
1957	);	3265	);
1958		3266
1959	=item $client->async (\&cb)	3267	=item $client->async (\&cb)
1960		3268
1961	Create a new coroutine, running the specified callback. The coroutine will	3269	Create a new coroutine, running the specified callback. The coroutine will
…		…
1977		3285
1978	$coro	3286	$coro
1979	}	3287	}
1980		3288
1981	cf::client->attach (	3289	cf::client->attach (
1982	on_destroy => sub {	3290	on_client_destroy => sub {
1983	my ($ns) = @_;	3291	my ($ns) = @_;
1984		3292
1985	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3293	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1986	},	3294	},
1987	);	3295	);
…		…
2002	our $safe = new Safe "safe";	3310	our $safe = new Safe "safe";
2003	our $safe_hole = new Safe::Hole;	3311	our $safe_hole = new Safe::Hole;
2004		3312
2005	$SIG{FPE} = 'IGNORE';	3313	$SIG{FPE} = 'IGNORE';
2006		3314
2007	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3315	$safe->permit_only (Opcode::opset qw(
		3316	:base_core :base_mem :base_orig :base_math :base_loop
		3317	grepstart grepwhile mapstart mapwhile
		3318	sort time
		3319	));
2008		3320
2009	# here we export the classes and methods available to script code	3321	# here we export the classes and methods available to script code
2010		3322
2011	=pod	3323	=pod
2012		3324
2013	The following fucntions and emthods are available within a safe environment:	3325	The following functions and methods are available within a safe environment:
2014		3326
2015	cf::object contr pay_amount pay_player map	3327	cf::object
		3328	contr pay_amount pay_player map x y force_find force_add destroy
		3329	insert remove name archname title slaying race decrease split
		3330	value
		3331
2016	cf::object::player player	3332	cf::object::player
2017	cf::player peaceful	3333	player
2018	cf::map trigger	3334
		3335	cf::player
		3336	peaceful
		3337
		3338	cf::map
		3339	trigger
2019		3340
2020	=cut	3341	=cut
2021		3342
2022	for (	3343	for (
2023	["cf::object" => qw(contr pay_amount pay_player map)],	3344	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3345	insert remove inv nrof name archname title slaying race
		3346	decrease split destroy change_exp value msg lore send_msg)],
2024	["cf::object::player" => qw(player)],	3347	["cf::object::player" => qw(player)],
2025	["cf::player" => qw(peaceful)],	3348	["cf::player" => qw(peaceful send_msg)],
2026	["cf::map" => qw(trigger)],	3349	["cf::map" => qw(trigger)],
2027	) {	3350	) {
2028	no strict 'refs';
2029	my ($pkg, @funs) = @$_;	3351	my ($pkg, @funs) = @$_;
2030	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3352	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2031	for @funs;	3353	for @funs;
2032	}	3354	}
2033		3355
…		…
2048		3370
2049	my $qcode = $code;	3371	my $qcode = $code;
2050	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3372	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2051	$qcode =~ s/\n/\\n/g;	3373	$qcode =~ s/\n/\\n/g;
2052		3374
		3375	%vars = (_dummy => 0) unless %vars;
		3376
		3377	my @res;
2053	local $_;	3378	local $_;
2054	local @safe::cf::_safe_eval_args = values %vars;
2055		3379
2056	my $eval =	3380	my $eval =
2057	"do {\n"	3381	"do {\n"
2058	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3382	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2059	. "#line 0 \"{$qcode}\"\n"	3383	. "#line 0 \"{$qcode}\"\n"
2060	. $code	3384	. $code
2061	. "\n}"	3385	. "\n}"
2062	;	3386	;
2063		3387
		3388	if ($CFG{safe_eval}) {
2064	sub_generation_inc;	3389	sub_generation_inc;
		3390	local @safe::cf::_safe_eval_args = values %vars;
2065	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3391	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2066	sub_generation_inc;	3392	sub_generation_inc;
		3393	} else {
		3394	local @cf::_safe_eval_args = values %vars;
		3395	@res = wantarray ? eval eval : scalar eval $eval;
		3396	}
2067		3397
2068	if ($@) {	3398	if ($@) {
2069	warn "$@";	3399	warn "$@",
2070	warn "while executing safe code '$code'\n";	3400	"while executing safe code '$code'\n",
2071	warn "with arguments " . (join " ", %vars) . "\n";	3401	"with arguments " . (join " ", %vars) . "\n";
2072	}	3402	}
2073		3403
2074	wantarray ? @res : $res[0]	3404	wantarray ? @res : $res[0]
2075	}	3405	}
2076		3406
…		…
2090	=cut	3420	=cut
2091		3421
2092	sub register_script_function {	3422	sub register_script_function {
2093	my ($fun, $cb) = @_;	3423	my ($fun, $cb) = @_;
2094		3424
2095	no strict 'refs';	3425	$fun = "safe::$fun" if $CFG{safe_eval};
2096	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3426	*$fun = $safe_hole->wrap ($cb);
2097	}	3427	}
2098		3428
2099	=back	3429	=back
2100		3430
2101	=cut	3431	=cut
2102		3432
2103	#############################################################################	3433	#############################################################################
		3434	# the server's init and main functions
2104		3435
2105	=head2 EXTENSION DATABASE SUPPORT	3436	sub load_facedata($) {
		3437	my ($path) = @_;
2106		3438
2107	Crossfire maintains a very simple database for extension use. It can	3439	# HACK to clear player env face cache, we need some signal framework
2108	currently store anything that can be serialised using Storable, which	3440	# for this (global event?)
2109	excludes objects.	3441	%ext::player_env::MUSIC_FACE_CACHE = ();
2110		3442
2111	The parameter C<$family> should best start with the name of the extension	3443	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2112	using it, it should be unique.
2113		3444
2114	=over 4	3445	trace "loading facedata from $path\n";
2115		3446
2116	=item $hashref = cf::db_get $family	3447	my $facedata = decode_storable load_file $path;
2117		3448
2118	Return a hashref for use by the extension C<$family>, which can be	3449	$facedata->{version} == 2
2119	modified. After modifications, you have to call C<cf::db_dirty> or	3450	or cf::cleanup "$path: version mismatch, cannot proceed.";
2120	C<cf::db_sync>.
2121		3451
2122	=item $value = cf::db_get $family => $key	3452	# patch in the exptable
2123		3453	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2124	Returns a single value from the database	3454	$facedata->{resource}{"res/exp_table"} = {
2125		3455	type => FT_RSRC,
2126	=item cf::db_put $family => $hashref	3456	data => $exp_table,
2127		3457	hash => (Digest::MD5::md5 $exp_table),
2128	Stores the given family hashref into the database. Updates are delayed, if
2129	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2130
2131	=item cf::db_put $family => $key => $value
2132
2133	Stores the given C<$value> in the family hash. Updates are delayed, if you
2134	want the data to be synced to disk immediately, use C<cf::db_sync>.
2135
2136	=item cf::db_dirty
2137
2138	Marks the database as dirty, to be updated at a later time.
2139
2140	=item cf::db_sync
2141
2142	Immediately write the database to disk I<if it is dirty>.
2143
2144	=cut
2145
2146	our $DB;
2147
2148	{
2149	my $path = cf::localdir . "/database.pst";
2150
2151	sub db_load() {
2152	$DB = stat $path ? Storable::retrieve $path : { };
2153	}
2154
2155	my $pid;
2156
2157	sub db_save() {
2158	waitpid $pid, 0 if $pid;
2159	if (0 == ($pid = fork)) {
2160	$DB->{_meta}{version} = 1;
2161	Storable::nstore $DB, "$path~";
2162	rename "$path~", $path;
2163	cf::_exit 0 if defined $pid;
2164	}
2165	}
2166
2167	my $dirty;
2168
2169	sub db_sync() {
2170	db_save if $dirty;
2171	undef $dirty;
2172	}
2173
2174	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2175	db_sync;
2176	});	3458	};
		3459	cf::cede_to_tick;
2177		3460
2178	sub db_dirty() {
2179	$dirty = 1;
2180	$idle->start;
2181	}	3461	{
		3462	my $faces = $facedata->{faceinfo};
2182		3463
2183	sub db_get($;$) {	3464	while (my ($face, $info) = each %$faces) {
2184	@_ >= 2	3465	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2185	? $DB->{$_[0]}{$_[1]}
2186	: ($DB->{$_[0]} ||= { })
2187	}
2188		3466
2189	sub db_put($$;$) {	3467	cf::face::set_visibility $idx, $info->{visibility};
2190	if (@_ >= 3) {	3468	cf::face::set_magicmap $idx, $info->{magicmap};
2191	$DB->{$_[0]}{$_[1]} = $_[2];	3469	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2192	} else {	3470	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2193	$DB->{$_[0]} = $_[1];	3471	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2194	}
2195	db_dirty;
2196	}
2197		3472
2198	cf::global->attach (	3473	cf::cede_to_tick;
2199	prio => 10000,
2200	on_cleanup => sub {
2201	db_sync;
2202	},	3474	}
2203	);
2204	}
2205		3475
2206	#############################################################################	3476	while (my ($face, $info) = each %$faces) {
2207	# the server's main()	3477	next unless $info->{smooth};
2208		3478
2209	sub cfg_load {	3479	my $idx = cf::face::find $face
2210	open my $fh, "<:utf8", cf::confdir . "/config"	3480	or next;
2211	or return;
2212		3481
2213	local $/;	3482	if (my $smooth = cf::face::find $info->{smooth}) {
2214	*CFG = YAML::Syck::Load <$fh>;	3483	cf::face::set_smooth $idx, $smooth;
		3484	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3485	} else {
		3486	error "smooth face '$info->{smooth}' not found for face '$face'";
		3487	}
2215		3488
		3489	cf::cede_to_tick;
		3490	}
		3491	}
		3492
		3493	{
		3494	my $anims = $facedata->{animinfo};
		3495
		3496	while (my ($anim, $info) = each %$anims) {
		3497	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3498	cf::cede_to_tick;
		3499	}
		3500
		3501	cf::anim::invalidate_all; # d'oh
		3502	}
		3503
		3504	{
		3505	my $res = $facedata->{resource};
		3506
		3507	while (my ($name, $info) = each %$res) {
		3508	if (defined $info->{type}) {
		3509	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3510
		3511	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3512	cf::face::set_type $idx, $info->{type};
		3513	} else {
		3514	$RESOURCE{$name} = $info; # unused
		3515	}
		3516
		3517	cf::cede_to_tick;
		3518	}
		3519	}
		3520
		3521	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3522
		3523	1
		3524	}
		3525
		3526	register_exticmd fx_want => sub {
		3527	my ($ns, $want) = @_;
		3528
		3529	while (my ($k, $v) = each %$want) {
		3530	$ns->fx_want ($k, $v);
		3531	}
		3532	};
		3533
		3534	sub load_resource_file($) {
		3535	my $guard = lock_acquire "load_resource_file";
		3536
		3537	my $status = load_resource_file_ $_[0];
		3538	get_slot 0.1, 100;
		3539	cf::arch::commit_load;
		3540
		3541	$status
		3542	}
		3543
		3544	sub reload_regions {
		3545	# HACK to clear player env face cache, we need some signal framework
		3546	# for this (global event?)
		3547	%ext::player_env::MUSIC_FACE_CACHE = ();
		3548
		3549	load_resource_file "$MAPDIR/regions"
		3550	or die "unable to load regions file\n";
		3551
		3552	for (cf::region::list) {
		3553	$_->{match} = qr/$_->{match}/
		3554	if exists $_->{match};
		3555	}
		3556	}
		3557
		3558	sub reload_facedata {
		3559	load_facedata "$DATADIR/facedata"
		3560	or die "unable to load facedata\n";
		3561	}
		3562
		3563	sub reload_archetypes {
		3564	load_resource_file "$DATADIR/archetypes"
		3565	or die "unable to load archetypes\n";
		3566	}
		3567
		3568	sub reload_treasures {
		3569	load_resource_file "$DATADIR/treasures"
		3570	or die "unable to load treasurelists\n";
		3571	}
		3572
		3573	sub reload_sound {
		3574	trace "loading sound config from $DATADIR/sound\n";
		3575
		3576	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3577
		3578	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3579	my $sound = $soundconf->{compat}[$_]
		3580	or next;
		3581
		3582	my $face = cf::face::find "sound/$sound->[1]";
		3583	cf::sound::set $sound->[0] => $face;
		3584	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3585	}
		3586
		3587	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3588	my $face = cf::face::find "sound/$v";
		3589	cf::sound::set $k => $face;
		3590	}
		3591	}
		3592
		3593	sub reload_resources {
		3594	trace "reloading resource files...\n";
		3595
		3596	reload_exp_table;
		3597	reload_materials;
		3598	reload_facedata;
		3599	reload_sound;
		3600	reload_archetypes;
		3601	reload_regions;
		3602	reload_treasures;
		3603
		3604	trace "finished reloading resource files\n";
		3605	}
		3606
		3607	sub reload_config {
		3608	trace "reloading config file...\n";
		3609
		3610	my $config = load_file "$CONFDIR/config";
		3611	utf8::decode $config;
		3612	*CFG = decode_yaml $config;
		3613
2216	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3614	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2217		3615
2218	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3616	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2219	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3617	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2220		3618
2221	if (exists $CFG{mlockall}) {	3619	if (exists $CFG{mlockall}) {
…		…
2225	};	3623	};
2226	warn $@ if $@;	3624	warn $@ if $@;
2227	}	3625	}
2228	}	3626	}
2229		3627
		3628	sub pidfile() {
		3629	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3630	or die "$PIDFILE: $!";
		3631	flock $fh, &Fcntl::LOCK_EX
		3632	or die "$PIDFILE: flock: $!";
		3633	$fh
		3634	}
		3635
		3636	# make sure only one server instance is running at any one time
		3637	sub atomic {
		3638	my $fh = pidfile;
		3639
		3640	my $pid = <$fh>;
		3641	kill 9, $pid if $pid > 0;
		3642
		3643	seek $fh, 0, 0;
		3644	print $fh $$;
		3645	}
		3646
		3647	sub main_loop {
		3648	trace "EV::loop starting\n";
		3649	if (1) {
		3650	EV::loop;
		3651	}
		3652	trace "EV::loop returned\n";
		3653	goto &main_loop unless $REALLY_UNLOOP;
		3654	}
		3655
2230	sub main {	3656	sub main {
		3657	cf::init_globals; # initialise logging
		3658
		3659	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3660	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3661	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3662	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3663
		3664	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3665
2231	# we must not ever block the main coroutine	3666	# we must not ever block the main coroutine
2232	local $Coro::idle = sub {	3667	local $Coro::idle = sub {
2233	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2234	async { Event::one_event };	3669	(async {
		3670	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3671	EV::loop EV::LOOP_ONESHOT;
		3672	})->prio (Coro::PRIO_MAX);
2235	};	3673	};
2236		3674
2237	cfg_load;	3675	evthread_start IO::AIO::poll_fileno;
2238	db_load;	3676
		3677	cf::sync_job {
		3678	cf::incloader::init ();
		3679
		3680	cf::init_anim;
		3681	cf::init_attackmess;
		3682	cf::init_dynamic;
		3683
		3684	cf::load_settings;
		3685
		3686	reload_resources;
		3687	reload_config;
		3688	db_init;
		3689
		3690	cf::init_uuid;
		3691	cf::init_signals;
		3692	cf::init_skills;
		3693
		3694	cf::init_beforeplay;
		3695
		3696	atomic;
		3697
2239	load_extensions;	3698	load_extensions;
2240	Event::loop;	3699
		3700	utime time, time, $RUNTIMEFILE;
		3701
		3702	# no (long-running) fork's whatsoever before this point(!)
		3703	use POSIX ();
		3704	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3705
		3706	cf::_post_init 0;
		3707	};
		3708
		3709	cf::object::thawer::errors_are_fatal 0;
		3710	info "parse errors in files are no longer fatal from this point on.\n";
		3711
		3712	my $free_main; $free_main = EV::idle sub {
		3713	undef $free_main;
		3714	undef &main; # free gobs of memory :)
		3715	};
		3716
		3717	goto &main_loop;
2241	}	3718	}
2242		3719
2243	#############################################################################	3720	#############################################################################
2244	# initialisation and cleanup	3721	# initialisation and cleanup
2245		3722
2246	# install some emergency cleanup handlers	3723	# install some emergency cleanup handlers
2247	BEGIN {	3724	BEGIN {
		3725	our %SIGWATCHER = ();
2248	for my $signal (qw(INT HUP TERM)) {	3726	for my $signal (qw(INT HUP TERM)) {
2249	Event->signal (	3727	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2250	data => WF_AUTOCANCEL,
2251	signal => $signal,
2252	cb => sub {
2253	cf::cleanup "SIG$signal";	3728	cf::cleanup "SIG$signal";
2254	},
2255	);	3729	};
		3730	}
		3731	}
		3732
		3733	sub write_runtime_sync {
		3734	my $t0 = AE::time;
		3735
		3736	# first touch the runtime file to show we are still running:
		3737	# the fsync below can take a very very long time.
		3738
		3739	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3740
		3741	my $guard = cf::lock_acquire "write_runtime";
		3742
		3743	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3744	or return;
		3745
		3746	my $value = $cf::RUNTIME + 90 + 10;
		3747	# 10 is the runtime save interval, for a monotonic clock
		3748	# 60 allows for the watchdog to kill the server.
		3749
		3750	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3751	and return;
		3752
		3753	# always fsync - this file is important
		3754	aio_fsync $fh
		3755	and return;
		3756
		3757	# touch it again to show we are up-to-date
		3758	aio_utime $fh, undef, undef;
		3759
		3760	close $fh
		3761	or return;
		3762
		3763	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3764	and return;
		3765
		3766	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3767
2256	}	3768	1
		3769	}
		3770
		3771	our $uuid_lock;
		3772	our $uuid_skip;
		3773
		3774	sub write_uuid_sync($) {
		3775	$uuid_skip ||= $_[0];
		3776
		3777	return if $uuid_lock;
		3778	local $uuid_lock = 1;
		3779
		3780	my $uuid = "$LOCALDIR/uuid";
		3781
		3782	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3783	or return;
		3784
		3785	my $value = uuid_seq uuid_cur;
		3786
		3787	unless ($value) {
		3788	info "cowardly refusing to write zero uuid value!\n";
		3789	return;
		3790	}
		3791
		3792	my $value = uuid_str $value + $uuid_skip;
		3793	$uuid_skip = 0;
		3794
		3795	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3796	and return;
		3797
		3798	# always fsync - this file is important
		3799	aio_fsync $fh
		3800	and return;
		3801
		3802	close $fh
		3803	or return;
		3804
		3805	aio_rename "$uuid~", $uuid
		3806	and return;
		3807
		3808	trace "uuid file written ($value).\n";
		3809
		3810	1
		3811
		3812	}
		3813
		3814	sub write_uuid($$) {
		3815	my ($skip, $sync) = @_;
		3816
		3817	$sync ? write_uuid_sync $skip
		3818	: async { write_uuid_sync $skip };
2257	}	3819	}
2258		3820
2259	sub emergency_save() {	3821	sub emergency_save() {
2260	my $freeze_guard = cf::freeze_mainloop;	3822	my $freeze_guard = cf::freeze_mainloop;
2261		3823
2262	warn "enter emergency perl save\n";	3824	info "emergency_perl_save: enter\n";
		3825
		3826	# this is a trade-off: we want to be very quick here, so
		3827	# save all maps without fsync, and later call a global sync
		3828	# (which in turn might be very very slow)
		3829	local $USE_FSYNC = 0;
2263		3830
2264	cf::sync_job {	3831	cf::sync_job {
		3832	cf::write_runtime_sync; # external watchdog should not bark
		3833
2265	# use a peculiar iteration method to avoid tripping on perl	3834	# use a peculiar iteration method to avoid tripping on perl
2266	# refcount bugs in for. also avoids problems with players	3835	# refcount bugs in for. also avoids problems with players
2267	# and maps saved/destroyed asynchronously.	3836	# and maps saved/destroyed asynchronously.
2268	warn "begin emergency player save\n";	3837	info "emergency_perl_save: begin player save\n";
2269	for my $login (keys %cf::PLAYER) {	3838	for my $login (keys %cf::PLAYER) {
2270	my $pl = $cf::PLAYER{$login} or next;	3839	my $pl = $cf::PLAYER{$login} or next;
2271	$pl->valid or next;	3840	$pl->valid or next;
		3841	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2272	$pl->save;	3842	$pl->save;
2273	}	3843	}
2274	warn "end emergency player save\n";	3844	info "emergency_perl_save: end player save\n";
2275		3845
2276	warn "begin emergency map save\n";	3846	cf::write_runtime_sync; # external watchdog should not bark
		3847
		3848	info "emergency_perl_save: begin map save\n";
2277	for my $path (keys %cf::MAP) {	3849	for my $path (keys %cf::MAP) {
2278	my $map = $cf::MAP{$path} or next;	3850	my $map = $cf::MAP{$path} or next;
2279	$map->valid or next;	3851	$map->valid or next;
2280	$map->save;	3852	$map->save;
2281	}	3853	}
2282	warn "end emergency map save\n";	3854	info "emergency_perl_save: end map save\n";
		3855
		3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	info "emergency_perl_save: begin database checkpoint\n";
		3859	BDB::db_env_txn_checkpoint $DB_ENV;
		3860	info "emergency_perl_save: end database checkpoint\n";
		3861
		3862	info "emergency_perl_save: begin write uuid\n";
		3863	write_uuid_sync 1;
		3864	info "emergency_perl_save: end write uuid\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	trace "emergency_perl_save: syncing database to disk";
		3869	BDB::db_env_txn_checkpoint $DB_ENV;
		3870
		3871	info "emergency_perl_save: starting sync\n";
		3872	IO::AIO::aio_sync sub {
		3873	info "emergency_perl_save: finished sync\n";
		3874	};
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	trace "emergency_perl_save: flushing outstanding aio requests";
		3879	while (IO::AIO::nreqs || BDB::nreqs) {
		3880	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3881	}
		3882
		3883	cf::write_runtime_sync; # external watchdog should not bark
2283	};	3884	};
2284		3885
2285	warn "leave emergency perl save\n";	3886	info "emergency_perl_save: leave\n";
2286	}	3887	}
2287		3888
		3889	sub post_cleanup {
		3890	my ($make_core) = @_;
		3891
		3892	IO::AIO::flush;
		3893
		3894	error Carp::longmess "post_cleanup backtrace"
		3895	if $make_core;
		3896
		3897	my $fh = pidfile;
		3898	unlink $PIDFILE if <$fh> == $$;
		3899	}
		3900
		3901	# a safer delete_package, copied from Symbol
		3902	sub clear_package($) {
		3903	my $pkg = shift;
		3904
		3905	# expand to full symbol table name if needed
		3906	unless ($pkg =~ /^main::.*::$/) {
		3907	$pkg = "main$pkg" if $pkg =~ /^::/;
		3908	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3909	$pkg .= '::' unless $pkg =~ /::$/;
		3910	}
		3911
		3912	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3913	my $stem_symtab = *{$stem}{HASH};
		3914
		3915	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3916	or return;
		3917
		3918	# clear all symbols
		3919	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3920	for my $name (keys %$leaf_symtab) {
		3921	_gv_clear *{"$pkg$name"};
		3922	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3923	}
		3924	}
		3925
2288	sub reload() {	3926	sub do_reload_perl() {
2289	# can/must only be called in main	3927	# can/must only be called in main
2290	if ($Coro::current != $Coro::main) {	3928	unless (in_main) {
2291	warn "can only reload from main coroutine\n";	3929	error "can only reload from main coroutine";
2292	return;	3930	return;
2293	}	3931	}
2294		3932
2295	warn "reloading...";	3933	return if $RELOAD++;
2296		3934
2297	warn "freezing server";	3935	my $t1 = AE::time;
2298	my $guard = freeze_mainloop;	3936
		3937	while ($RELOAD) {
		3938	cf::get_slot 0.1, -1, "reload_perl";
		3939	info "perl_reload: reloading...";
		3940
		3941	trace "perl_reload: entering sync_job";
		3942
		3943	cf::sync_job {
2299	cf::emergency_save;	3944	#cf::emergency_save;
2300		3945
2301	warn "sync database to disk";	3946	trace "perl_reload: cancelling all extension coros";
2302	cf::db_sync;
2303	IO::AIO::flush;
2304
2305	eval {
2306	# if anything goes wrong in here, we should simply crash as we already saved
2307
2308	warn "cancel all watchers";
2309	for (Event::all_watchers) {
2310	$_->cancel if $_->data & WF_AUTOCANCEL;
2311	}
2312
2313	warn "cancel all extension coros";
2314	$_->cancel for values %EXT_CORO;	3947	$_->cancel for values %EXT_CORO;
2315	%EXT_CORO = ();	3948	%EXT_CORO = ();
2316		3949
2317	warn "remove commands";	3950	trace "perl_reload: removing commands";
2318	%COMMAND = ();	3951	%COMMAND = ();
2319		3952
2320	warn "remove ext commands";	3953	trace "perl_reload: removing ext/exti commands";
2321	%EXTCMD = ();	3954	%EXTCMD = ();
		3955	%EXTICMD = ();
2322		3956
2323	warn "unload/nuke all extensions";	3957	trace "perl_reload: unloading/nuking all extensions";
2324	for my $pkg (@EXTS) {	3958	for my $pkg (@EXTS) {
2325	warn "... unloading $pkg";	3959	trace "... unloading $pkg";
2326		3960
2327	if (my $cb = $pkg->can ("unload")) {	3961	if (my $cb = $pkg->can ("unload")) {
2328	eval {	3962	eval {
2329	$cb->($pkg);	3963	$cb->($pkg);
2330	1	3964	1
2331	} or warn "$pkg unloaded, but with errors: $@";	3965	} or error "$pkg unloaded, but with errors: $@";
		3966	}
		3967
		3968	trace "... clearing $pkg";
		3969	clear_package $pkg;
2332	}	3970	}
2333		3971
2334	warn "... nuking $pkg";
2335	Symbol::delete_package $pkg;
2336	}
2337
2338	warn "unload all perl modules loaded from $LIBDIR";	3972	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2339	while (my ($k, $v) = each %INC) {	3973	while (my ($k, $v) = each %INC) {
2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3974	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2341		3975
2342	warn "removing <$k>";	3976	trace "... unloading $k";
2343	delete $INC{$k};	3977	delete $INC{$k};
2344		3978
2345	$k =~ s/\.pm$//;	3979	$k =~ s/\.pm$//;
2346	$k =~ s/\//::/g;	3980	$k =~ s/\//::/g;
2347		3981
2348	if (my $cb = $k->can ("unload_module")) {	3982	if (my $cb = $k->can ("unload_module")) {
2349	$cb->();	3983	$cb->();
		3984	}
		3985
		3986	clear_package $k;
2350	}	3987	}
2351		3988
2352	Symbol::delete_package $k;
2353	}
2354
2355	warn "get rid of safe::, as good as possible";	3989	trace "perl_reload: getting rid of safe::, as good as possible";
2356	Symbol::delete_package "safe::$_"	3990	clear_package "safe::$_"
2357	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3991	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2358		3992
2359	warn "unload cf.pm \"a bit\"";	3993	trace "perl_reload: unloading cf.pm \"a bit\"";
2360	delete $INC{"cf.pm"};	3994	delete $INC{"cf.pm"};
		3995	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2361		3996
2362	# don't, removes xs symbols, too,	3997	# don't, removes xs symbols, too,
2363	# and global variables created in xs	3998	# and global variables created in xs
2364	#Symbol::delete_package __PACKAGE__;	3999	#clear_package __PACKAGE__;
2365		4000
2366	warn "reloading cf.pm";	4001	info "perl_reload: unload completed, starting to reload now";
		4002
		4003	trace "perl_reload: reloading cf.pm";
2367	require cf;	4004	require cf;
2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4005	cf::_connect_to_perl_1;
2369		4006
2370	warn "load config and database again";	4007	trace "perl_reload: loading config and database again";
2371	cf::cfg_load;	4008	cf::reload_config;
2372	cf::db_load;
2373		4009
2374	warn "load extensions";	4010	trace "perl_reload: loading extensions";
2375	cf::load_extensions;	4011	cf::load_extensions;
2376		4012
		4013	if ($REATTACH_ON_RELOAD) {
2377	warn "reattach attachments to objects/players";	4014	trace "perl_reload: reattaching attachments to objects/players";
2378	_global_reattach;	4015	_global_reattach; # objects, sockets
2379	warn "reattach attachments to maps";	4016	trace "perl_reload: reattaching attachments to maps";
2380	reattach $_ for values %MAP;	4017	reattach $_ for values %MAP;
		4018	trace "perl_reload: reattaching attachments to players";
		4019	reattach $_ for values %PLAYER;
		4020	}
		4021
		4022	cf::_post_init 1;
		4023
		4024	trace "perl_reload: leaving sync_job";
		4025
		4026	1
		4027	} or do {
		4028	error $@;
		4029	cf::cleanup "perl_reload: error, exiting.";
		4030	};
		4031
		4032	--$RELOAD;
		4033	}
		4034
		4035	$t1 = AE::time - $t1;
		4036	info "perl_reload: completed in ${t1}s\n";
		4037	};
		4038
		4039	our $RELOAD_WATCHER; # used only during reload
		4040
		4041	sub reload_perl() {
		4042	# doing reload synchronously and two reloads happen back-to-back,
		4043	# coro crashes during coro_state_free->destroy here.
		4044
		4045	$RELOAD_WATCHER ||= cf::async {
		4046	Coro::AIO::aio_wait cache_extensions;
		4047
		4048	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4049	do_reload_perl;
		4050	undef $RELOAD_WATCHER;
		4051	};
2381	};	4052	};
2382		4053	}
2383	if ($@) {
2384	warn $@;
2385	warn "error while reloading, exiting.";
2386	exit 1;
2387	}
2388
2389	warn "reloaded";
2390	};
2391		4054
2392	register_command "reload" => sub {	4055	register_command "reload" => sub {
2393	my ($who, $arg) = @_;	4056	my ($who, $arg) = @_;
2394		4057
2395	if ($who->flag (FLAG_WIZ)) {	4058	if ($who->flag (FLAG_WIZ)) {
2396	$who->message ("start of reload.");
2397	reload;
2398	$who->message ("end of reload.");	4059	$who->message ("reloading server.");
		4060	async {
		4061	$Coro::current->{desc} = "perl_reload";
		4062	reload_perl;
		4063	};
2399	}	4064	}
2400	};	4065	};
2401		4066
2402	unshift @INC, $LIBDIR;	4067	#############################################################################
2403		4068
2404	$TICK_WATCHER = Event->timer (	4069	my $bug_warning = 0;
2405	reentrant => 0,
2406	prio => 0,
2407	at => $NEXT_TICK || $TICK,
2408	data => WF_AUTOCANCEL,
2409	cb => sub {
2410	$NOW = Event::time;
2411		4070
		4071	our @WAIT_FOR_TICK;
		4072	our @WAIT_FOR_TICK_BEGIN;
		4073
		4074	sub wait_for_tick() {
		4075	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4076
		4077	my $signal = new Coro::Signal;
		4078	push @WAIT_FOR_TICK, $signal;
		4079	$signal->wait;
		4080	}
		4081
		4082	sub wait_for_tick_begin() {
		4083	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4084
		4085	my $signal = new Coro::Signal;
		4086	push @WAIT_FOR_TICK_BEGIN, $signal;
		4087	$signal->wait;
		4088	}
		4089
		4090	sub tick {
		4091	if ($Coro::current != $Coro::main) {
		4092	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4093	unless ++$bug_warning > 10;
		4094	return;
		4095	}
		4096
2412	cf::server_tick; # one server iteration	4097	cf::server_tick; # one server iteration
2413	$RUNTIME += $TICK;
2414	$NEXT_TICK += $TICK;
2415		4098
2416	$WAIT_FOR_TICK->broadcast;	4099	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2418		4100
2419	# if we are delayed by four ticks or more, skip them all	4101	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4102	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2421		4103	Coro::async_pool {
2422	$TICK_WATCHER->at ($NEXT_TICK);	4104	$Coro::current->{desc} = "runtime saver";
2423	$TICK_WATCHER->start;
2424	},
2425	);
2426
2427	IO::AIO::max_poll_time $TICK * 0.2;
2428
2429	$AIO_POLL_WATCHER = Event->io (
2430	fd => IO::AIO::poll_fileno,
2431	poll => 'r',
2432	prio => 5,
2433	data => WF_AUTOCANCEL,
2434	cb => \&IO::AIO::poll_cb,
2435	);
2436
2437	$WRITE_RUNTIME_WATCHER = Event->timer (
2438	data => WF_AUTOCANCEL,
2439	after => 0,
2440	interval => 10,
2441	cb => sub {
2442	(Coro::unblock_sub {
2443	write_runtime	4105	write_runtime_sync
2444	or warn "ERROR: unable to write runtime file: $!";	4106	or error "ERROR: unable to write runtime file: $!";
2445	})->();	4107	};
2446	},	4108	}
2447	);	4109
		4110	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4111	$sig->send;
		4112	}
		4113	while (my $sig = shift @WAIT_FOR_TICK) {
		4114	$sig->send;
		4115	}
		4116
		4117	$LOAD = ($NOW - $TICK_START) / $TICK;
		4118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4119
		4120	if (0) {
		4121	if ($NEXT_TICK) {
		4122	my $jitter = $TICK_START - $NEXT_TICK;
		4123	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4124	debug "jitter $JITTER\n";#d#
		4125	}
		4126	}
		4127	}
		4128
		4129	{
		4130	# configure BDB
		4131
		4132	BDB::min_parallel 16;
		4133	BDB::max_poll_reqs $TICK * 0.1;
		4134	$AnyEvent::BDB::WATCHER->priority (1);
		4135
		4136	unless ($DB_ENV) {
		4137	$DB_ENV = BDB::db_env_create;
		4138	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4139	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4140	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4141	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4142	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4143
		4144	cf::sync_job {
		4145	eval {
		4146	BDB::db_env_open
		4147	$DB_ENV,
		4148	$BDBDIR,
		4149	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4150	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4151	0666;
		4152
		4153	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4154	};
		4155
		4156	cf::cleanup "db_env_open(db): $@" if $@;
		4157	};
		4158	}
		4159
		4160	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4161	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4162	};
		4163	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4164	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4165	};
		4166	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4167	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4168	};
		4169	}
		4170
		4171	{
		4172	# configure IO::AIO
		4173
		4174	IO::AIO::min_parallel 8;
		4175	IO::AIO::max_poll_time $TICK * 0.1;
		4176	undef $AnyEvent::AIO::WATCHER;
		4177	}
		4178
		4179	our $_log_backtrace;
		4180	our $_log_backtrace_last;
		4181
		4182	sub _log_backtrace {
		4183	my ($msg, @addr) = @_;
		4184
		4185	$msg =~ s/\n$//;
		4186
		4187	if ($_log_backtrace_last eq $msg) {
		4188	LOG llevInfo, "[ABT] $msg\n";
		4189	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4190	# limit the # of concurrent backtraces
		4191	} elsif ($_log_backtrace < 2) {
		4192	$_log_backtrace_last = $msg;
		4193	++$_log_backtrace;
		4194	my $perl_bt = Carp::longmess $msg;
		4195	async {
		4196	$Coro::current->{desc} = "abt $msg";
		4197
		4198	my @bt = fork_call {
		4199	@addr = map { sprintf "%x", $_ } @addr;
		4200	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4201	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4202	or die "addr2line: $!";
		4203
		4204	my @funcs;
		4205	my @res = <$fh>;
		4206	chomp for @res;
		4207	while (@res) {
		4208	my ($func, $line) = splice @res, 0, 2, ();
		4209	push @funcs, "[$func] $line";
		4210	}
		4211
		4212	@funcs
		4213	};
		4214
		4215	LOG llevInfo, "[ABT] $perl_bt\n";
		4216	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4217	LOG llevInfo, "[ABT] $_\n" for @bt;
		4218	--$_log_backtrace;
		4219	};
		4220	} else {
		4221	LOG llevInfo, "[ABT] $msg\n";
		4222	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4223	}
		4224	}
		4225
		4226	# load additional modules
		4227	require "cf/$_.pm" for @EXTRA_MODULES;
		4228	cf::_connect_to_perl_2;
2448		4229
2449	END { cf::emergency_save }	4230	END { cf::emergency_save }
2450		4231
2451	1	4232	1
2452		4233

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