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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.203 by root, Thu Feb 1 19:40:42 2007 UTC vs.
Revision 1.562 by root, Sat Apr 23 04:46:26 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 3.5 ();	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;
87		172
88	sub cf::map::normalise;	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::"} };
89		189
90	#############################################################################	190	#############################################################################
91		191
92	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
93		193
…		…
100	=item $cf::RUNTIME	200	=item $cf::RUNTIME
101		201
102	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
103	every server tick.	203	every server tick.
104		204
105	=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
106		208
107	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		213
110	=item $cf::NOW	214	=item $cf::NOW
111		215
112	The time of the last (current) server tick.	216	The time of the last (current) server tick.
113		217
114	=item $cf::TICK	218	=item $cf::TICK
115		219
116	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
117		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
118	=item %cf::CFG	232	=item %cf::CFG
119		233
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	235	from wherever your confdir points to.
122		236
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		238
125	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
126	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
127	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.
128	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.
129		259
130	=back	260	=back
131		261
132	=cut	262	=cut
133		263
134	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
135	*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 {
136	my $msg = join "", @_;	271	my $msg = join "", @_;
137	utf8::encode $msg;
138		272
139	$msg .= "\n"	273	$msg .= "\n"
140	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
141		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
142	LOG llevError, $msg;	278	LOG llevWarn, $msg;
143	};	279	};
144	}	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	};
145		294
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@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';
151	@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)
152		302
153	# 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
154	# within the Safe compartment.	304	# within the Safe compartment.
155	for my $pkg (qw(	305	for my $pkg (qw(
156	cf::global cf::attachable	306	cf::global cf::attachable
157	cf::object cf::object::player	307	cf::object cf::object::player
158	cf::client cf::player	308	cf::client cf::player
159	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
160	cf::map cf::party cf::region	311	cf::party cf::region
161	)) {	312	)) {
162	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	314	}
165		315
166	$Event::DIED = sub {	316	$EV::DIED = sub {
167	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
168	};	318	};
		319
		320	#############################################################################
		321
		322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
169		326
170	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
171		328
172	=over 4	329	=over 4
173		330
…		…
192	$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;
193	$d	350	$d
194	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
195	}	352	}
196		353
197	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
198		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
199	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
200		369
201	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
202		371
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
211		373
212	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
213		375
214	=cut	376	=cut
215		377
216	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
218	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	}
219	}	443	}
220		444
221	=item cf::lock_wait $string	445	=item cf::lock_wait $string
222		446
223	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
224		448
225	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
226		450
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
230	returned.	454	returned.
231		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
232	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
233	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
234		461
235	=cut	462	=item $locked = cf::lock_active $string
236		463
237	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;
238		469
239	sub lock_wait($) {	470	sub lock_wait($) {
240	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	472	}
248		473
249	sub lock_acquire($) {	474	sub lock_acquire($) {
250	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
251		477
252	# wait, to be sure we are not locked	478	sub lock_active($) {
253	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	480	}
262		481
263	sub freeze_mainloop {	482	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
265		484
266	my $guard = Coro::guard {	485	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	486	}
268	$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	}
269	};	556	}
270	$WRITE_RUNTIME_WATCHER->stop;	557	};
271	$TICK_WATCHER->stop;	558
272	$guard	559	sub get_slot($;$$) {
		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;
273	}	572	}
274		573
275	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
276		575
277	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		581
283	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
284		583
285	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
286		585
287	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
288	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
289	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.
290		590
291	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
292	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
293	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
294	fast or be very important.	594	fast or be very important.
…		…
296	=cut	596	=cut
297		597
298	sub sync_job(&) {	598	sub sync_job(&) {
299	my ($job) = @_;	599	my ($job) = @_;
300		600
301	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
302	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
304		606
305	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	608
307	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
308		610
309	my $busy = 1;	611	my $busy = 1;
310	my @res;	612	my @res;
311		613
312	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	616	@res = eval { $job->() };
314	warn $@ if $@;	617	error $@ if $@;
315	undef $busy;	618	undef $busy;
316	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
317		620
318	while ($busy) {	621	while ($busy) {
319	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
320	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
321		632
322	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
323	} else {	634	} else {
324	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
325		636
…		…
345	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
346		657
347	$coro	658	$coro
348	}	659	}
349		660
350	sub write_runtime {	661	=item fork_call { }, @args
351	my $runtime = cf::localdir . "/runtime";
352		662
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
354	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.
355		667
356	my $value = $cf::RUNTIME + 90 + 10;	668	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		669
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	670	sub post_fork {
361	and return;	671	reset_signals;
		672	}
362		673
363	aio_fsync $fh	674	sub fork_call(&@) {
364	and return;	675	my ($cb, @args) = @_;
365		676
366	close $fh	677	# we seemingly have to make a local copy of the whole thing,
367	or return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
368		680
369	aio_rename "$runtime~", $runtime	681	my @res = Coro::Util::fork_eval {
370	and return;	682	cf::post_fork;
		683	&$cb
		684	} @args;
371		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
372	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 });
373	}	864	}
374		865
375	=back	866	=back
376		867
377	=cut	868	=cut
378		869
379	#############################################################################	870	#############################################################################
380		871
381	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
382		873
383	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
384	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")
385	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
386		877
387	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>
388	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
389	crossfire+).	880	Deliantra).
390		881
391	=over 4	882	=over 4
392		883
393	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
394		885
…		…
438	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
439		930
440	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
441	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
442		933
443	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
444	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.
445		936
446	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
447		938
448	=over 4	939	=over 4
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
558		1049
559	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		1054
564	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
566		1057
567	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
572		1063
573	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
574	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
575		1066
576	} elsif (ref $type) {	1067	} elsif (ref $type) {
577	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
578		1069
579	} else {	1070	} else {
580	shift @arg;	1071	shift @arg;
581	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
582	}	1073	}
583	}	1074	}
584	}	1075	}
585		1076
586	sub _object_attach {	1077	sub _object_attach {
…		…
596	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
597	}	1088	}
598		1089
599	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
600	} else {	1091	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
602	}	1093	}
603		1094
604	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
605	}	1096	}
606		1097
…		…
608	if (ref $_[0]) {	1099	if (ref $_[0]) {
609	_object_attach @_;	1100	_object_attach @_;
610	} else {	1101	} else {
611	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
612	}	1103	}
		1104	_recalc_want;
613	};	1105	};
614		1106
615	# all those should be optimised	1107	# all those should be optimised
616	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
621	reattach ($obj);	1113	reattach ($obj);
622	} else {	1114	} else {
623	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
624	}	1116	}
		1117	_recalc_want;
625	};	1118	};
626		1119
627	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
629		1122
…		…
644	";	1137	";
645	die if $@;	1138	die if $@;
646	}	1139	}
647		1140
648	our $override;	1141	our $override;
649	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?
650		1143
651	sub override {	1144	sub override {
652	$override = 1;	1145	$override = 1;
653	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
654	}	1147	}
655		1148
656	sub do_invoke {	1149	sub do_invoke {
657	my $event = shift;	1150	my $event = shift;
658	my $callbacks = shift;	1151	my $callbacks = shift;
659		1152
660	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
661		1154
662	local $override;	1155	local $override;
663		1156
664	for (@$callbacks) {	1157	for (@$callbacks) {
665	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
666		1159
667	if ($@) {	1160	if ($@) {
668	warn "$@";
669	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
670	override;	1162	override;
671	}	1163	}
672		1164
673	return 1 if $override;	1165	return 1 if $override;
674	}	1166	}
675		1167
676	0	1168	0
677	}	1169	}
678		1170
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		1172
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		1174
683	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
684		1176
685	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
686	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
687	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		1180
689	=back	1181	=back
690		1182
691	=cut	1183	=cut
692		1184
693	#############################################################################	1185	#############################################################################
694	# 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	}
695		1229
696	sub reattach {	1230	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1232	my ($obj) = @_;
699		1233
		1234	# no longer needed after getting rid of delete_package?
700	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
701		1236
702	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
703		1238
704	@$registry = ();	1239	@$registry = ();
705		1240
…		…
710	for (@$attach) {	1245	for (@$attach) {
711	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
713	}	1248	}
714	} else {	1249	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1251	}
717	}	1252	}
718	}	1253	}
719		1254
720	cf::attachable->attach (	1255	cf::attachable->attach (
721	prio => -1000000,	1256	prio => -1000000,
722	on_instantiate => sub {	1257	on_instantiate => sub {
723	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
724		1259
725	$data = from_json $data;	1260	$data = decode_json $data;
726		1261
727	for (@$data) {	1262	for (@$data) {
728	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
729		1264
730	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1281	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
748		1283
749	sync_job {	1284	sync_job {
750	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
753		1290
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$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;
757	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
758	close $fh;	1298	aio_close $fh;
759		1299
760	if (@$objs) {	1300	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	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;
765	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
766	close $fh;	1309	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
768	}	1311	}
769	} else {	1312	} else {
770	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
771	}	1314	}
772		1315
773	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1320	} else {
775	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
776	}	1322	}
777	} else {	1323	} else {
778	aio_unlink $filename;	1324	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
780	}	1326	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1327	};
788	}	1328	}
789		1329
790	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
792		1332
…		…
797		1337
798	sub object_thawer_load {	1338	sub object_thawer_load {
799	my ($filename) = @_;	1339	my ($filename) = @_;
800		1340
801	my ($data, $av);	1341	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1342
806	(aio_load $filename, $data) >= 0	1343	(aio_load $filename, $data) >= 0
807	or return;	1344	or return;
808		1345
809	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
811	or return;	1348	or return;
		1349
812	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
813	}	1352	}
814		1353
		1354	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
817	return ($data, $av);	1359	($data, $av)
818	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
819		1367
820	#############################################################################	1368	#############################################################################
821	# command handling &c	1369	# command handling &c
822		1370
823	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1385	}
838		1386
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1388
841	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.
842		1394
843	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
844	called.	1396	called.
845		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
846	=cut	1409	=cut
847		1410
848	sub register_extcmd {	1411	sub register_extcmd {
849	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
850		1413
851	$EXTCMD{$name} = $cb;	1414	$EXTCMD{$name} = $cb;
852	}	1415	}
853		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
		1424
854	cf::player->attach (	1425	cf::player->attach (
855	on_command => sub {	1426	on_unknown_command => sub {
856	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
857		1428
858	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
859	or return;	1430	or return;
860		1431
…		…
865	cf::override;	1436	cf::override;
866	},	1437	},
867	on_extcmd => sub {	1438	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
869		1440
870	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1442
872	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
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
878	} else {	1458	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1460	}
881		1461
882	cf::override;	1462	cf::override;
883	},	1463	},
884	);	1464	);
885		1465
		1466	# "readahead" all extensions
886	sub load_extension {	1467	sub cache_extensions {
887	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
888		1469
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1473	}
914	die $@;
915	}	1474	};
916		1475
917	push @EXTS, $pkg;	1476	$grp
918	}	1477	}
919		1478
920	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
921	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1486	next unless -r $path;
923	eval {	1487
924	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	}
925	1	1551	}
926	} 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	last;
		1562	}
		1563	}
927	}	1564	};
928	}	1565	}
929		1566
930	#############################################################################	1567	#############################################################################
931		1568
		1569	=back
		1570
932	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
933		1572
934	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
935		1574
936	=cut	1575	=cut
937		1576
938	package cf::player;	1577	package cf::player;
939		1578
…		…
941		1580
942	=head3 cf::player	1581	=head3 cf::player
943		1582
944	=over 4	1583	=over 4
945		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
946	=item cf::player::find $login	1599	=item cf::player::find $login
947		1600
948	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
949		1602
950	=cut	1603	=cut
951		1604
952	sub playerdir($) {	1605	sub playerdir($) {
953	cf::localdir	1606	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1608	}
959		1609
960	sub path($) {	1610	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1612
963	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
964	}	1614	}
965		1615
966	sub find_active($) {	1616	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
971		1621
972	sub exists($) {	1622	sub exists($) {
973	my ($login) = @_;	1623	my ($login) = @_;
974		1624
975	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1626	or !aio_stat path $login
977	}	1627	}
978		1628
979	sub find($) {	1629	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1631	my $login = $_[0];
982		1632
983	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
984		1634
985	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
987	or return;	1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
988	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
989	}	1652	}
990	}	1653	}
991	}	1654	}
		1655
		1656	cf::player->attach (
		1657	on_load => sub {
		1658	my ($pl, $path) = @_;
		1659
		1660	# restore slots saved in save, below
		1661	my $slots = delete $pl->{_slots};
		1662
		1663	$pl->ob->current_weapon ($slots->[0]);
		1664	$pl->combat_ob ($slots->[1]);
		1665	$pl->ranged_ob ($slots->[2]);
		1666	},
		1667	);
992		1668
993	sub save($) {	1669	sub save($) {
994	my ($pl) = @_;	1670	my ($pl) = @_;
995		1671
996	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1001	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1002		1678
1003	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1005		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
1006	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1007	Coro::cede;	1688	cf::cede_to_tick;
1008	}	1689	}
1009		1690
1010	sub new($) {	1691	sub new($) {
1011	my ($login) = @_;	1692	my ($login) = @_;
1012		1693
…		…
1018	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1019		1700
1020	$self	1701	$self
1021	}	1702	}
1022		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
1023	=item $pl->quit_character	1714	=item $pl->quit_character
1024		1715
1025	Nukes the player without looking back. If logged in, the connection will	1716	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1027		1718
1028	=cut	1719	=cut
1029		1720
1030	sub quit_character {	1721	sub quit_character {
1031	my ($pl) = @_;	1722	my ($pl) = @_;
1032		1723
		1724	my $name = $pl->ob->name;
		1725
1033	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1035		1728
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1037	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1039	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1040		1737
1041	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
1046	IO::AIO::aio_rmtree $temp;	1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
1047	}	1764	}
1048		1765
1049	=item cf::player::list_logins	1766	=item cf::player::list_logins
1050		1767
1051	Returns am arrayref of all valid playernames in the system, can take a	1768	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1053		1770
1054	=cut	1771	=cut
1055		1772
1056	sub list_logins {	1773	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1775	or return [];
1059		1776
1060	my @logins;	1777	my @logins;
1061		1778
1062	for my $login (@$dirs) {	1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1066		1789
1067	utf8::decode $login;	1790	utf8::decode $login;
1068	push @logins, $login;	1791	push @logins, $login;
1069	}	1792	}
1070		1793
1071	\@logins	1794	\@logins
1072	}	1795	}
1073		1796
1074	=item $player->maps	1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
1075		1800
1076	Returns an arrayref of map paths that are private for this	1801	Returns an arrayref of map paths that are private for this
1077	player. May block.	1802	player. May block.
1078		1803
1079	=cut	1804	=cut
…		…
1097	}	1822	}
1098		1823
1099	\@paths	1824	\@paths
1100	}	1825	}
1101		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1103		1832
1104	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1105		1834
1106	=cut	1835	=cut
1107		1836
1108	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1110		1839
1111	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1841	}
1115		1842
1116	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
		1856
		1857	=over 4
		1858
		1859	=cut
		1860
		1861	package cf::region;
		1862
		1863	=item cf::region::find_by_path $path
		1864
		1865	Tries to decuce the likely region for a map knowing only its path.
		1866
		1867	=cut
		1868
		1869	sub find_by_path($) {
		1870	my ($path) = @_;
		1871
		1872	$path =~ s/^~[^\/]*//; # skip ~login
		1873
		1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
		1884	}
1117		1885
1118	=back	1886	=back
1119
1120		1887
1121	=head3 cf::map	1888	=head3 cf::map
1122		1889
1123	=over 4	1890	=over 4
1124		1891
…		…
1136	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1137	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1138		1905
1139	sub generate_random_map {	1906	sub generate_random_map {
1140	my ($self, $rmp) = @_;	1907	my ($self, $rmp) = @_;
1141	# mit "rum" bekleckern, nicht	1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
1142	$self->_create_random_map (	1911	$self->_create_random_map ($rmp);
1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1146	$rmp->{exit_on_final_map},
1147	$rmp->{xsize}, $rmp->{ysize},
1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1153	(cf::region::find $rmp->{region}), $rmp->{custom}
1154	)
1155	}	1912	}
1156		1913
1157	=item cf::map->register ($regex, $prio)	1914	=item cf::map->register ($regex, $prio)
1158		1915
1159	Register a handler for the map path matching the given regex at the	1916	Register a handler for the map path matching the given regex at the
…		…
1164		1921
1165	sub register {	1922	sub register {
1166	my (undef, $regex, $prio) = @_;	1923	my (undef, $regex, $prio) = @_;
1167	my $pkg = caller;	1924	my $pkg = caller;
1168		1925
1169	no strict;
1170	push @{"$pkg\::ISA"}, __PACKAGE__;	1926	push @{"$pkg\::ISA"}, __PACKAGE__;
1171		1927
1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1173	}	1929	}
1174		1930
1175	# also paths starting with '/'	1931	# also paths starting with '/'
1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1177		1933
1178	sub thawer_merge {	1934	sub thawer_merge {
1179	my ($self, $merge) = @_;	1935	my ($self, $merge) = @_;
1180		1936
1181	# we have to keep some variables in memory intact	1937	# we have to keep some variables in memory intact
1182	local $self->{path};	1938	local $self->{path};
1183	local $self->{load_path};	1939	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1940
1187	$self->SUPER::thawer_merge ($merge);	1941	$self->SUPER::thawer_merge ($merge);
1188	}	1942	}
1189		1943
1190	sub normalise {	1944	sub normalise {
1191	my ($path, $base) = @_;	1945	my ($path, $base) = @_;
1192		1946
1193	$path = "$path"; # make sure its a string	1947	$path = "$path"; # make sure it's a string
1194		1948
1195	$path =~ s/\.map$//;	1949	$path =~ s/\.map$//;
1196		1950
1197	# map plan:	1951	# map plan:
1198	#	1952	#
…		…
1213	$base =~ s{[^/]+/?$}{};	1967	$base =~ s{[^/]+/?$}{};
1214	$path = "$base/$path";	1968	$path = "$base/$path";
1215	}	1969	}
1216		1970
1217	for ($path) {	1971	for ($path) {
1218	redo if s{//}{/};
1219	redo if s{/\.?/}{/};	1972	redo if s{/\.?/}{/};
1220	redo if s{/[^/]+/\.\./}{/};	1973	redo if s{/[^/]+/\.\./}{/};
1221	}	1974	}
1222		1975
1223	$path	1976	$path
…		…
1237	$self->init; # pass $1 etc.	1990	$self->init; # pass $1 etc.
1238	return $self;	1991	return $self;
1239	}	1992	}
1240	}	1993	}
1241		1994
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
1243	()	1996	()
1244	}	1997	}
1245		1998
		1999	# may re-bless or do other evil things
1246	sub init {	2000	sub init {
1247	my ($self) = @_;	2001	my ($self) = @_;
1248		2002
1249	$self	2003	$self
1250	}	2004	}
…		…
1262		2016
1263	# the original (read-only) location	2017	# the original (read-only) location
1264	sub load_path {	2018	sub load_path {
1265	my ($self) = @_;	2019	my ($self) = @_;
1266		2020
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2021	"$MAPDIR/$self->{path}.map"
1268	}	2022	}
1269		2023
1270	# the temporary/swap location	2024	# the temporary/swap location
1271	sub save_path {	2025	sub save_path {
1272	my ($self) = @_;	2026	my ($self) = @_;
1273		2027
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2029	"$TMPDIR/$path.map"
1276	}	2030	}
1277		2031
1278	# the unique path, undef == no special unique path	2032	# the unique path, undef == no special unique path
1279	sub uniq_path {	2033	sub uniq_path {
1280	my ($self) = @_;	2034	my ($self) = @_;
1281		2035
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2037	"$UNIQUEDIR/$path"
1284	}	2038	}
1285		2039
1286	# and all this just because we cannot iterate over	2040	sub decay_objects {
1287	# all maps in C++...
1288	sub change_all_map_light {
1289	my ($change) = @_;	2041	my ($self) = @_;
1290		2042
1291	$_->change_map_light ($change)	2043	return if $self->{deny_reset};
1292	for grep $_->outdoor, values %cf::MAP;	2044
		2045	$self->do_decay_objects;
1293	}	2046	}
1294		2047
1295	sub unlink_save {	2048	sub unlink_save {
1296	my ($self) = @_;	2049	my ($self) = @_;
1297		2050
1298	utf8::encode (my $save = $self->save_path);	2051	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302	#d#TODO remove .map and also nuke
1303	$save =~ s/\.map// or return;#d#
1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306	}	2054	}
1307		2055
1308	sub load_header_from($) {	2056	sub load_header_from($) {
1309	my ($self, $path) = @_;	2057	my ($self, $path) = @_;
1310		2058
1311	utf8::encode $path;	2059	utf8::encode $path;
1312	#aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1313	# or return;
1314
1315	$self->_load_header ($path)
1316	or return;	2061	or return;
		2062
		2063	$self->_load_header ($f)
		2064	or return;
		2065
		2066	local $MAP_LOADING{$self->{path}} = $self;
		2067	$f->resolve_delayed_derefs;
1317		2068
1318	$self->{load_path} = $path;	2069	$self->{load_path} = $path;
1319		2070
1320	1	2071	1
1321	}	2072	}
…		…
1360	$self->load_header_orig	2111	$self->load_header_orig
1361	or return;	2112	or return;
1362	$self->prepare_orig;	2113	$self->prepare_orig;
1363	}	2114	}
1364		2115
		2116	$self->{deny_reset} = 1
		2117	if $self->no_reset;
		2118
		2119	$self->default_region (cf::region::find_by_path $self->{path})
		2120	unless $self->default_region;
		2121
1365	1	2122	1
1366	}	2123	}
1367		2124
1368	sub find;	2125	sub find;
1369	sub find {	2126	sub find {
1370	my ($path, $origin) = @_;	2127	my ($path, $origin) = @_;
1371		2128
		2129	cf::cede_to_tick;
		2130
1372	$path = normalise $path, $origin && $origin->path;	2131	$path = normalise $path, $origin && $origin->path;
1373		2132
		2133	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1374	cf::lock_wait "map_find:$path";	2134	my $guard2 = cf::lock_acquire "map_find:$path";
1375		2135
1376	$cf::MAP{$path} || do {	2136	$cf::MAP{$path} || do {
1377	my $guard = cf::lock_acquire "map_find:$path";
1378	my $map = new_from_path cf::map $path	2137	my $map = new_from_path cf::map $path
1379	or return;	2138	or return;
1380		2139
1381	$map->{last_save} = $cf::RUNTIME;	2140	$map->{last_save} = $cf::RUNTIME;
1382		2141
1383	$map->load_header	2142	$map->load_header
1384	or return;	2143	or return;
1385		2144
1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2145	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1387	# doing this can freeze the server in a sync job, obviously	2146	# doing this can freeze the server in a sync job, obviously
1388	#$cf::WAIT_FOR_TICK->wait;	2147	#$cf::WAIT_FOR_TICK->wait;
		2148	undef $guard2;
		2149	undef $guard1;
1389	$map->reset;	2150	$map->reset;
1390	undef $guard;
1391	return find $path;	2151	return find $path;
1392	}	2152	}
1393		2153
1394	$cf::MAP{$path} = $map	2154	$cf::MAP{$path} = $map
1395	}	2155	}
1396	}	2156	}
1397		2157
1398	sub pre_load { }	2158	sub pre_load { }
1399	sub post_load { }	2159	#sub post_load { } # XS
1400		2160
1401	sub load {	2161	sub load {
1402	my ($self) = @_;	2162	my ($self) = @_;
1403		2163
1404	local $self->{deny_reset} = 1; # loading can take a long time	2164	local $self->{deny_reset} = 1; # loading can take a long time
1405		2165
1406	my $path = $self->{path};	2166	my $path = $self->{path};
		2167
		2168	{
1407	my $guard = cf::lock_acquire "map_load:$path";	2169	my $guard = cf::lock_acquire "map_data:$path";
1408		2170
		2171	return unless $self->valid;
1409	return if $self->in_memory != cf::MAP_SWAPPED;	2172	return unless $self->in_memory == cf::MAP_SWAPPED;
1410		2173
1411	$self->in_memory (cf::MAP_LOADING);	2174	$self->in_memory (cf::MAP_LOADING);
1412		2175
1413	$self->alloc;	2176	$self->alloc;
1414		2177
1415	$self->pre_load;	2178	$self->pre_load;
		2179	cf::cede_to_tick;
1416		2180
1417	$self->_load_objects ($self->{load_path}, 1)	2181	if (exists $self->{load_path}) {
		2182	my $f = new_from_file cf::object::thawer $self->{load_path};
		2183	$f->skip_block;
		2184	$self->_load_objects ($f)
1418	or return;	2185	or return;
1419		2186
1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2187	$self->post_load_original
1421	if delete $self->{load_original};	2188	if delete $self->{load_original};
1422		2189
1423	if (my $uniq = $self->uniq_path) {	2190	if (my $uniq = $self->uniq_path) {
1424	utf8::encode $uniq;	2191	utf8::encode $uniq;
1425	if (aio_open $uniq, O_RDONLY, 0) {	2192	unless (aio_stat $uniq) {
		2193	if (my $f = new_from_file cf::object::thawer $uniq) {
1426	$self->clear_unique_items;	2194	$self->clear_unique_items;
1427	$self->_load_objects ($uniq, 0);	2195	$self->_load_objects ($f);
		2196	$f->resolve_delayed_derefs;
		2197	}
		2198	}
1428	}	2199	}
1429	}
1430		2200
1431	Coro::cede;	2201	$f->resolve_delayed_derefs;
		2202	}
1432		2203
		2204	cf::cede_to_tick;
1433	# now do the right thing for maps	2205	# now do the right thing for maps
1434	$self->link_multipart_objects;	2206	$self->link_multipart_objects;
1435
1436	unless ($self->{deny_activate}) {
1437	$self->decay_objects;
1438	$self->fix_auto_apply;
1439	$self->update_buttons;
1440	Coro::cede;
1441	$self->set_darkness_map;
1442	$self->difficulty ($self->estimate_difficulty)	2207	$self->difficulty ($self->estimate_difficulty)
1443	unless $self->difficulty;	2208	unless $self->difficulty;
1444	Coro::cede;	2209	cf::cede_to_tick;
		2210
		2211	unless ($self->{deny_activate}) {
		2212	$self->decay_objects;
		2213	$self->fix_auto_apply;
		2214	$self->update_buttons;
		2215	cf::cede_to_tick;
1445	$self->activate;	2216	$self->activate;
		2217	}
		2218
		2219	$self->{last_save} = $cf::RUNTIME;
		2220	$self->last_access ($cf::RUNTIME);
		2221
		2222	$self->in_memory (cf::MAP_ACTIVE);
1446	}	2223	}
1447		2224
1448	$self->post_load;	2225	$self->post_load;
1449		2226
1450	$self->in_memory (cf::MAP_IN_MEMORY);	2227	1
1451	}	2228	}
1452		2229
		2230	# customize the map for a given player, i.e.
		2231	# return the _real_ map. used by e.g. per-player
		2232	# maps to change the path to ~playername/mappath
1453	sub customise_for {	2233	sub customise_for {
1454	my ($self, $ob) = @_;	2234	my ($self, $ob) = @_;
1455		2235
1456	return find "~" . $ob->name . "/" . $self->{path}	2236	return find "~" . $ob->name . "/" . $self->{path}
1457	if $self->per_player;	2237	if $self->per_player;
1458		2238
		2239	# return find "?party/" . $ob->name . "/" . $self->{path}
		2240	# if $self->per_party;
		2241
1459	$self	2242	$self
1460	}	2243	}
1461		2244
1462	# find and load all maps in the 3x3 area around a map	2245	# find and load all maps in the 3x3 area around a map
1463	sub load_diag {	2246	sub load_neighbours {
1464	my ($map) = @_;	2247	my ($map) = @_;
1465		2248
1466	my @diag; # diagonal neighbours	2249	my @neigh; # diagonal neighbours
1467		2250
1468	for (0 .. 3) {	2251	for (0 .. 3) {
1469	my $neigh = $map->tile_path ($_)	2252	my $neigh = $map->tile_path ($_)
1470	or next;	2253	or next;
1471	$neigh = find $neigh, $map	2254	$neigh = find $neigh, $map
1472	or next;	2255	or next;
1473	$neigh->load;	2256	$neigh->load;
1474		2257
		2258	# now find the diagonal neighbours
		2259	push @neigh,
1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2260	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2261	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1477	}	2262	}
1478		2263
1479	for (@diag) {	2264	for (grep defined $_->[0], @neigh) {
		2265	my ($path, $origin) = @$_;
1480	my $neigh = find @$_	2266	my $neigh = find $path, $origin
1481	or next;	2267	or next;
1482	$neigh->load;	2268	$neigh->load;
1483	}	2269	}
1484	}	2270	}
1485		2271
1486	sub find_sync {	2272	sub find_sync {
1487	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1488		2274
1489	cf::sync_job { find $path, $origin }	2275	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2276	if $Coro::current == $Coro::main;
		2277
		2278	find $path, $origin
1490	}	2279	}
1491		2280
1492	sub do_load_sync {	2281	sub do_load_sync {
1493	my ($map) = @_;	2282	my ($map) = @_;
1494		2283
1495	cf::sync_job { $map->load };	2284	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2285	if $Coro::current == $Coro::main;
		2286
		2287	$map->load;
1496	}	2288	}
1497		2289
1498	our %MAP_PREFETCH;	2290	our %MAP_PREFETCH;
1499	our $MAP_PREFETCHER = undef;	2291	our $MAP_PREFETCHER = undef;
1500		2292
1501	sub find_async {	2293	sub find_async {
1502	my ($path, $origin) = @_;	2294	my ($path, $origin, $load) = @_;
1503		2295
1504	$path = normalise $path, $origin && $origin->{path};	2296	$path = normalise $path, $origin && $origin->{path};
1505		2297
1506	if (my $map = $cf::MAP{$path}) {	2298	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2299	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1508	}	2300	}
1509		2301
1510	undef $MAP_PREFETCH{$path};	2302	$MAP_PREFETCH{$path} |= $load;
		2303
1511	$MAP_PREFETCHER ||= cf::async {	2304	$MAP_PREFETCHER ||= cf::async {
		2305	$Coro::current->{desc} = "map prefetcher";
		2306
1512	while (%MAP_PREFETCH) {	2307	while (%MAP_PREFETCH) {
1513	for my $path (keys %MAP_PREFETCH) {	2308	while (my ($k, $v) = each %MAP_PREFETCH) {
1514	my $map = find $path	2309	if (my $map = find $k) {
1515	or next;
1516	$map->load;	2310	$map->load if $v;
		2311	}
1517		2312
1518	delete $MAP_PREFETCH{$path};	2313	delete $MAP_PREFETCH{$k};
1519	}	2314	}
1520	}	2315	}
1521	undef $MAP_PREFETCHER;	2316	undef $MAP_PREFETCHER;
1522	};	2317	};
1523	$MAP_PREFETCHER->prio (6);	2318	$MAP_PREFETCHER->prio (6);
1524		2319
1525	()	2320	()
1526	}	2321	}
1527		2322
		2323	# common code, used by both ->save and ->swapout
1528	sub save {	2324	sub _save {
1529	my ($self) = @_;	2325	my ($self) = @_;
1530
1531	my $lock = cf::lock_acquire "map_data:" . $self->path;
1532		2326
1533	$self->{last_save} = $cf::RUNTIME;	2327	$self->{last_save} = $cf::RUNTIME;
1534		2328
1535	return unless $self->dirty;	2329	return unless $self->dirty;
1536		2330
…		…
1542	return if $self->{deny_save};	2336	return if $self->{deny_save};
1543		2337
1544	local $self->{last_access} = $self->last_access;#d#	2338	local $self->{last_access} = $self->last_access;#d#
1545		2339
1546	cf::async {	2340	cf::async {
		2341	$Coro::current->{desc} = "map player save";
1547	$_->contr->save for $self->players;	2342	$_->contr->save for $self->players;
1548	};	2343	};
		2344
		2345	cf::get_slot 0.02;
1549		2346
1550	if ($uniq) {	2347	if ($uniq) {
1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2348	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2349	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1553	} else {	2350	} else {
1554	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2351	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1555	}	2352	}
1556	}	2353	}
1557		2354
		2355	sub save {
		2356	my ($self) = @_;
		2357
		2358	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2359
		2360	$self->_save;
		2361	}
		2362
1558	sub swap_out {	2363	sub swap_out {
1559	my ($self) = @_;	2364	my ($self) = @_;
1560		2365
1561	# save first because save cedes
1562	$self->save;
1563
1564	my $lock = cf::lock_acquire "map_data:" . $self->path;	2366	my $lock = cf::lock_acquire "map_data:$self->{path}";
1565		2367
		2368	return if $self->in_memory != cf::MAP_ACTIVE;
		2369	return if $self->{deny_save};
1566	return if $self->players;	2370	return if $self->players;
1567	return if $self->in_memory != cf::MAP_IN_MEMORY;
1568	return if $self->{deny_save};
1569		2371
		2372	# first deactivate the map and "unlink" it from the core
		2373	$self->deactivate;
		2374	$_->clear_links_to ($self) for values %cf::MAP;
		2375	$self->in_memory (cf::MAP_SWAPPED);
		2376
		2377	# then atomically save
		2378	$self->_save;
		2379
		2380	# then free the map
1570	$self->clear;	2381	$self->clear;
1571	$self->in_memory (cf::MAP_SWAPPED);
1572	}	2382	}
1573		2383
1574	sub reset_at {	2384	sub reset_at {
1575	my ($self) = @_;	2385	my ($self) = @_;
1576		2386
1577	# TODO: safety, remove and allow resettable per-player maps	2387	# TODO: safety, remove and allow resettable per-player maps
1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1579	return 1e99 if $self->{deny_reset};	2388	return 1e99 if $self->{deny_reset};
1580		2389
1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2390	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2391	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1583		2392
…		…
1594	my ($self) = @_;	2403	my ($self) = @_;
1595		2404
1596	my $lock = cf::lock_acquire "map_data:$self->{path}";	2405	my $lock = cf::lock_acquire "map_data:$self->{path}";
1597		2406
1598	return if $self->players;	2407	return if $self->players;
1599	return if $self->isa ("ext::map_per_player");#d#
1600		2408
1601	warn "resetting map ", $self->path;#d#	2409	cf::trace "resetting map ", $self->path, "\n";
		2410
		2411	$self->in_memory (cf::MAP_SWAPPED);
		2412
		2413	# need to save uniques path
		2414	unless ($self->{deny_save}) {
		2415	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2416
		2417	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2418	if $uniq;
		2419	}
1602		2420
1603	delete $cf::MAP{$self->path};	2421	delete $cf::MAP{$self->path};
1604		2422
1605	$self->in_memory (cf::MAP_SWAPPED);	2423	$self->deactivate;
		2424	$_->clear_links_to ($self) for values %cf::MAP;
1606	$self->clear;	2425	$self->clear;
1607
1608	$_->clear_links_to ($self) for values %cf::MAP;
1609		2426
1610	$self->unlink_save;	2427	$self->unlink_save;
1611	$self->destroy;	2428	$self->destroy;
1612	}	2429	}
1613		2430
1614	my $nuke_counter = "aaaa";	2431	my $nuke_counter = "aaaa";
1615		2432
1616	sub nuke {	2433	sub nuke {
1617	my ($self) = @_;	2434	my ($self) = @_;
1618		2435
		2436	{
		2437	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2438
1619	delete $cf::MAP{$self->path};	2439	delete $cf::MAP{$self->path};
1620		2440
1621	$self->unlink_save;	2441	$self->unlink_save;
1622		2442
1623	bless $self, "cf::map";	2443	bless $self, "cf::map::wrap";
1624	delete $self->{deny_reset};	2444	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2445	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2446	$self->reset_timeout (1);
1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2447	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1628		2448
1629	$cf::MAP{$self->path} = $self;	2449	$cf::MAP{$self->path} = $self;
		2450	}
1630		2451
1631	$self->reset; # polite request, might not happen	2452	$self->reset; # polite request, might not happen
		2453	}
		2454
		2455	=item $maps = cf::map::tmp_maps
		2456
		2457	Returns an arrayref with all map paths of currently instantiated and saved
		2458	maps. May block.
		2459
		2460	=cut
		2461
		2462	sub tmp_maps() {
		2463	[
		2464	map {
		2465	utf8::decode $_;
		2466	/\.map$/
		2467	? normalise $_
		2468	: ()
		2469	} @{ aio_readdir $TMPDIR or [] }
		2470	]
		2471	}
		2472
		2473	=item $maps = cf::map::random_maps
		2474
		2475	Returns an arrayref with all map paths of currently instantiated and saved
		2476	random maps. May block.
		2477
		2478	=cut
		2479
		2480	sub random_maps() {
		2481	[
		2482	map {
		2483	utf8::decode $_;
		2484	/\.map$/
		2485	? normalise "?random/$_"
		2486	: ()
		2487	} @{ aio_readdir $RANDOMDIR or [] }
		2488	]
1632	}	2489	}
1633		2490
1634	=item cf::map::unique_maps	2491	=item cf::map::unique_maps
1635		2492
1636	Returns an arrayref of paths of all shared maps that have	2493	Returns an arrayref of paths of all shared maps that have
1637	instantiated unique items. May block.	2494	instantiated unique items. May block.
1638		2495
1639	=cut	2496	=cut
1640		2497
1641	sub unique_maps() {	2498	sub unique_maps() {
1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2499	[
1643	or return;	2500	map {
1644
1645	my @paths;
1646
1647	for (@$files) {
1648	utf8::decode $_;	2501	utf8::decode $_;
1649	next if /\.pst$/;	2502	s/\.map$//; # TODO future compatibility hack
1650	next unless /^$PATH_SEP/o;	2503	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1651		2504	? ()
1652	push @paths, cf::map::normalise $_;	2505	: normalise $_
		2506	} @{ aio_readdir $UNIQUEDIR or [] }
1653	}	2507	]
1654
1655	\@paths
1656	}	2508	}
1657		2509
1658	package cf;	2510	=item cf::map::static_maps
		2511
		2512	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2513	file in the shared directory excluding F</styles> and F</editor>). May
		2514	block.
		2515
		2516	=cut
		2517
		2518	sub static_maps() {
		2519	my @dirs = "";
		2520	my @maps;
		2521
		2522	while (@dirs) {
		2523	my $dir = shift @dirs;
		2524
		2525	next if $dir eq "/styles" || $dir eq "/editor";
		2526
		2527	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2528	or return;
		2529
		2530	for (@$files) {
		2531	s/\.map$// or next;
		2532	utf8::decode $_;
		2533	push @maps, "$dir/$_";
		2534	}
		2535
		2536	push @dirs, map "$dir/$_", @$dirs;
		2537	}
		2538
		2539	\@maps
		2540	}
1659		2541
1660	=back	2542	=back
1661		2543
1662	=head3 cf::object	2544	=head3 cf::object
1663		2545
…		…
1667		2549
1668	=over 4	2550	=over 4
1669		2551
1670	=item $ob->inv_recursive	2552	=item $ob->inv_recursive
1671		2553
1672	Returns the inventory of the object _and_ their inventories, recursively.	2554	Returns the inventory of the object I<and> their inventories, recursively,
		2555	but I<not> the object itself.
1673		2556
1674	=cut	2557	=cut
1675		2558
1676	sub inv_recursive_;	2559	sub inv_recursive_;
1677	sub inv_recursive_ {	2560	sub inv_recursive_ {
…		…
1680		2563
1681	sub inv_recursive {	2564	sub inv_recursive {
1682	inv_recursive_ inv $_[0]	2565	inv_recursive_ inv $_[0]
1683	}	2566	}
1684		2567
		2568	=item $ref = $ob->ref
		2569
		2570	Creates and returns a persistent reference to an object that can be stored as a string.
		2571
		2572	=item $ob = cf::object::deref ($refstring)
		2573
		2574	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2575	even if the object actually exists. May block.
		2576
		2577	=cut
		2578
		2579	sub deref {
		2580	my ($ref) = @_;
		2581
		2582	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2583	my ($uuid, $name) = ($1, $2);
		2584	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2585	or return;
		2586	$pl->ob->uuid eq $uuid
		2587	or return;
		2588
		2589	$pl->ob
		2590	} else {
		2591	warn "$ref: cannot resolve object reference\n";
		2592	undef
		2593	}
		2594	}
		2595
1685	package cf;	2596	package cf;
1686		2597
1687	=back	2598	=back
1688		2599
1689	=head3 cf::object::player	2600	=head3 cf::object::player
…		…
1695	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2606	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1696	can be C<undef>. Does the right thing when the player is currently in a	2607	can be C<undef>. Does the right thing when the player is currently in a
1697	dialogue with the given NPC character.	2608	dialogue with the given NPC character.
1698		2609
1699	=cut	2610	=cut
		2611
		2612	our $SAY_CHANNEL = {
		2613	id => "say",
		2614	title => "Map",
		2615	reply => "say ",
		2616	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2617	};
		2618
		2619	our $CHAT_CHANNEL = {
		2620	id => "chat",
		2621	title => "Chat",
		2622	reply => "chat ",
		2623	tooltip => "Player chat and shouts, global to the server.",
		2624	};
1700		2625
1701	# rough implementation of a future "reply" method that works	2626	# rough implementation of a future "reply" method that works
1702	# with dialog boxes.	2627	# with dialog boxes.
1703	#TODO: the first argument must go, split into a $npc->reply_to ( method	2628	#TODO: the first argument must go, split into a $npc->reply_to ( method
1704	sub cf::object::player::reply($$$;$) {	2629	sub cf::object::player::reply($$$;$) {
…		…
1706		2631
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2632	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2633
1709	if ($self->{record_replies}) {	2634	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2635	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2636
1711	} else {	2637	} else {
		2638	my $pl = $self->contr;
		2639
		2640	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2641	my $dialog = $pl->{npc_dialog};
		2642	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2643
		2644	} else {
1712	$msg = $npc->name . " says: $msg" if $npc;	2645	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2646	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2647	}
1714	}	2648	}
		2649	}
		2650
		2651	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2652
		2653	=cut
		2654
		2655	sub cf::object::send_msg {
		2656	my $pl = shift->contr
		2657	or return;
		2658	$pl->send_msg (@_);
1715	}	2659	}
1716		2660
1717	=item $player_object->may ("access")	2661	=item $player_object->may ("access")
1718		2662
1719	Returns wether the given player is authorized to access resource "access"	2663	Returns wether the given player is authorized to access resource "access"
…		…
1732		2676
1733	=item $player_object->enter_link	2677	=item $player_object->enter_link
1734		2678
1735	Freezes the player and moves him/her to a special map (C<{link}>).	2679	Freezes the player and moves him/her to a special map (C<{link}>).
1736		2680
1737	The player should be reasonably safe there for short amounts of time. You	2681	The player should be reasonably safe there for short amounts of time (e.g.
1738	I<MUST> call C<leave_link> as soon as possible, though.	2682	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2683	though, as the player cannot control the character while it is on the link
		2684	map.
1739		2685
1740	Will never block.	2686	Will never block.
1741		2687
1742	=item $player_object->leave_link ($map, $x, $y)	2688	=item $player_object->leave_link ($map, $x, $y)
1743		2689
…		…
1763	sub cf::object::player::enter_link {	2709	sub cf::object::player::enter_link {
1764	my ($self) = @_;	2710	my ($self) = @_;
1765		2711
1766	$self->deactivate_recursive;	2712	$self->deactivate_recursive;
1767		2713
		2714	++$self->{_link_recursion};
		2715
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2716	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2717
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2719	if $self->map && $self->map->{path} ne "{link}";
1772		2720
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2721	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1774	}	2722	}
1775		2723
1776	sub cf::object::player::leave_link {	2724	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2725	my ($self, $map, $x, $y) = @_;
		2726
		2727	return unless $self->contr->active;
1778		2728
1779	my $link_pos = delete $self->{_link_pos};	2729	my $link_pos = delete $self->{_link_pos};
1780		2730
1781	unless ($map) {	2731	unless ($map) {
1782	# restore original map position	2732	# restore original map position
…		…
1793	($x, $y) = (-1, -1)	2743	($x, $y) = (-1, -1)
1794	unless (defined $x) && (defined $y);	2744	unless (defined $x) && (defined $y);
1795		2745
1796	# use -1 or undef as default coordinates, not 0, 0	2746	# use -1 or undef as default coordinates, not 0, 0
1797	($x, $y) = ($map->enter_x, $map->enter_y)	2747	($x, $y) = ($map->enter_x, $map->enter_y)
1798	if $x <=0 && $y <= 0;	2748	if $x <= 0 && $y <= 0;
1799		2749
1800	$map->load;	2750	$map->load;
1801	$map->load_diag;	2751	$map->load_neighbours;
1802		2752
1803	return unless $self->contr->active;	2753	return unless $self->contr->active;
		2754
		2755	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2756	if ($self->enter_map ($map, $x, $y)) {
		2757	# entering was successful
		2758	delete $self->{_link_recursion};
		2759	# only activate afterwards, to support waiting in hooks
1804	$self->activate_recursive;	2760	$self->activate_recursive;
1805	$self->enter_map ($map, $x, $y);
1806	}
1807
1808	cf::player->attach (
1809	on_logout => sub {
1810	my ($pl) = @_;
1811
1812	# abort map switching before logout
1813	if ($pl->ob->{_link_pos}) {
1814	cf::sync_job {
1815	$pl->ob->leave_link
1816	};
1817	}
1818	},	2761	}
1819	on_login => sub {
1820	my ($pl) = @_;
1821		2762
1822	# try to abort aborted map switching on player login :)	2763	}
1823	# should happen only on crashes
1824	if ($pl->ob->{_link_pos}) {
1825	$pl->ob->enter_link;
1826	(async {
1827	# we need this sleep as the login has a concurrent enter_exit running
1828	# and this sleep increases chances of the player not ending up in scorn
1829	$pl->ob->reply (undef,
1830	"There was an internal problem at your last logout, "
1831	. "the server will try to bring you to your intended destination in a second.",
1832	cf::NDI_RED);
1833	Coro::Timer::sleep 1;
1834	$pl->ob->leave_link;
1835	})->prio (2);
1836	}
1837	},
1838	);
1839		2764
1840	=item $player_object->goto ($path, $x, $y)	2765	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1841		2766
		2767	Moves the player to the given map-path and coordinates by first freezing
		2768	her, loading and preparing them map, calling the provided $check callback
		2769	that has to return the map if sucecssful, and then unfreezes the player on
		2770	the new (success) or old (failed) map position. In either case, $done will
		2771	be called at the end of this process.
		2772
		2773	Note that $check will be called with a potentially non-loaded map, so if
		2774	it needs a loaded map it has to call C<< ->load >>.
		2775
1842	=cut	2776	=cut
		2777
		2778	our $GOTOGEN;
1843		2779
1844	sub cf::object::player::goto {	2780	sub cf::object::player::goto {
1845	my ($self, $path, $x, $y) = @_;	2781	my ($self, $path, $x, $y, $check, $done) = @_;
		2782
		2783	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2784	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2785	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2786	($path, $x, $y) = @$EMERGENCY_POSITION;
		2787	}
		2788
		2789	# do generation counting so two concurrent goto's will be executed in-order
		2790	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1846		2791
1847	$self->enter_link;	2792	$self->enter_link;
1848		2793
1849	(async {	2794	(async {
		2795	$Coro::current->{desc} = "player::goto $path $x $y";
		2796
		2797	# *tag paths override both path and x|y
		2798	if ($path =~ /^\*(.*)$/) {
		2799	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2800	my $ob = $obs[rand @obs];
		2801
		2802	# see if we actually can go there
		2803	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2804	$ob = $obs[rand @obs];
		2805	} else {
		2806	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2807	}
		2808	# else put us there anyways for now #d#
		2809
		2810	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2811	} else {
		2812	($path, $x, $y) = (undef, undef, undef);
		2813	}
		2814	}
		2815
1850	my $map = eval {	2816	my $map = eval {
1851	my $map = cf::map::find $path;	2817	my $map = defined $path ? cf::map::find $path : undef;
		2818
		2819	if ($map) {
1852	$map = $map->customise_for ($self) if $map;	2820	$map = $map->customise_for ($self);
		2821	$map = $check->($map, $x, $y, $self) if $check && $map;
		2822	} else {
		2823	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2824	}
		2825
1853	$map	2826	$map
		2827	};
		2828
		2829	if ($@) {
		2830	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	LOG llevError | logBacktrace, Carp::longmess $@;
1854	} or	2832	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2833
		2834	if ($gen == $self->{_goto_generation}) {
		2835	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2836	$self->leave_link ($map, $x, $y);
		2837	}
		2838
		2839	$done->($self) if $done;
1858	})->prio (1);	2840	})->prio (1);
1859	}	2841	}
1860		2842
1861	=item $player_object->enter_exit ($exit_object)	2843	=item $player_object->enter_exit ($exit_object)
1862		2844
…		…
1882	}	2864	}
1883		2865
1884	sub prepare_random_map {	2866	sub prepare_random_map {
1885	my ($exit) = @_;	2867	my ($exit) = @_;
1886		2868
1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1888
1889	# all this does is basically replace the /! path by	2869	# all this does is basically replace the /! path by
1890	# a new random map path (?random/...) with a seed	2870	# a new random map path (?random/...) with a seed
1891	# that depends on the exit object	2871	# that depends on the exit object
1892		2872
1893	my $rmp = parse_random_map_params $exit->msg;	2873	my $rmp = parse_random_map_params $exit->msg;
…		…
1895	if ($exit->map) {	2875	if ($exit->map) {
1896	$rmp->{region} = $exit->region->name;	2876	$rmp->{region} = $exit->region->name;
1897	$rmp->{origin_map} = $exit->map->path;	2877	$rmp->{origin_map} = $exit->map->path;
1898	$rmp->{origin_x} = $exit->x;	2878	$rmp->{origin_x} = $exit->x;
1899	$rmp->{origin_y} = $exit->y;	2879	$rmp->{origin_y} = $exit->y;
		2880
		2881	$exit->map->touch;
1900	}	2882	}
1901		2883
1902	$rmp->{random_seed} ||= $exit->random_seed;	2884	$rmp->{random_seed} ||= $exit->random_seed;
1903		2885
1904	my $data = cf::to_json $rmp;	2886	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1905	my $md5 = Digest::MD5::md5_hex $data;	2887	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2888	my $meta = "$RANDOMDIR/$md5.meta";
1907		2889
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2891	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2892	undef $fh;
1911	aio_rename "$meta~", $meta;	2893	aio_rename "$meta~", $meta;
1912		2894
		2895	my $slaying = "?random/$md5";
		2896
		2897	if ($exit->valid) {
1913	$exit->slaying ("?random/$md5");	2898	$exit->slaying ("?random/$md5");
1914	$exit->msg (undef);	2899	$exit->msg (undef);
		2900	}
1915	}	2901	}
1916	}	2902	}
1917		2903
1918	sub cf::object::player::enter_exit {	2904	sub cf::object::player::enter_exit {
1919	my ($self, $exit) = @_;	2905	my ($self, $exit) = @_;
1920		2906
1921	return unless $self->type == cf::PLAYER;	2907	return unless $self->type == cf::PLAYER;
1922		2908
1923	if ($exit->slaying eq "/!") {
1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
1925	cf::sync_job { prepare_random_map $exit };
1926	}
1927
1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1929	my $hp = $exit->stats->hp;
1930	my $sp = $exit->stats->sp;
1931
1932	$self->enter_link;	2909	$self->enter_link;
1933		2910
1934	(async {	2911	(async {
1935	$self->deactivate_recursive; # just to be sure	2912	$Coro::current->{desc} = "enter_exit";
		2913
1936	unless (eval {	2914	unless (eval {
		2915	$self->deactivate_recursive; # just to be sure
		2916
		2917	# random map handling
		2918	{
		2919	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2920
		2921	prepare_random_map $exit
		2922	if $exit->slaying eq "/!";
		2923	}
		2924
		2925	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2926	my $x = $exit->stats->hp;
		2927	my $y = $exit->stats->sp;
		2928
1937	$self->goto ($slaying, $hp, $sp);	2929	$self->goto ($map, $x, $y);
1938		2930
		2931	# if exit is damned, update players death & WoR home-position
		2932	$self->contr->savebed ($map, $x, $y)
		2933	if $exit->flag (cf::FLAG_DAMNED);
		2934
1939	1;	2935	1
1940	}) {	2936	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2937	$self->message ("Something went wrong deep within the deliantra server. "
1942	. "I'll try to bring you back to the map you were before. "	2938	. "I'll try to bring you back to the map you were before. "
1943	. "Please report this to the dungeon master!",	2939	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2940	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2941
1946	warn "ERROR in enter_exit: $@";	2942	error "ERROR in enter_exit: $@";
1947	$self->leave_link;	2943	$self->leave_link;
1948	}	2944	}
1949	})->prio (1);	2945	})->prio (1);
1950	}	2946	}
1951		2947
…		…
1962		2958
1963	sub cf::client::send_drawinfo {	2959	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2960	my ($self, $text, $flags) = @_;
1965		2961
1966	utf8::encode $text;	2962	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2963	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2964	}
1969		2965
		2966	=item $client->send_big_packet ($pkt)
		2967
		2968	Like C<send_packet>, but tries to compress large packets, and fragments
		2969	them as required.
		2970
		2971	=cut
		2972
		2973	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2974
		2975	sub cf::client::send_big_packet {
		2976	my ($self, $pkt) = @_;
		2977
		2978	# try lzf for large packets
		2979	$pkt = "lzf " . Compress::LZF::compress $pkt
		2980	if 1024 <= length $pkt and $self->{can_lzf};
		2981
		2982	# split very large packets
		2983	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2984	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2985	$pkt = "frag";
		2986	}
		2987
		2988	$self->send_packet ($pkt);
		2989	}
		2990
		2991	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2992
		2993	Send a drawinfo or msg packet to the client, formatting the msg for the
		2994	client if neccessary. C<$type> should be a string identifying the type of
		2995	the message, with C<log> being the default. If C<$color> is negative, suppress
		2996	the message unless the client supports the msg packet.
		2997
		2998	=cut
		2999
		3000	# non-persistent channels (usually the info channel)
		3001	our %CHANNEL = (
		3002	"c/motd" => {
		3003	id => "infobox",
		3004	title => "MOTD",
		3005	reply => undef,
		3006	tooltip => "The message of the day",
		3007	},
		3008	"c/identify" => {
		3009	id => "infobox",
		3010	title => "Identify",
		3011	reply => undef,
		3012	tooltip => "Items recently identified",
		3013	},
		3014	"c/examine" => {
		3015	id => "infobox",
		3016	title => "Examine",
		3017	reply => undef,
		3018	tooltip => "Signs and other items you examined",
		3019	},
		3020	"c/shopinfo" => {
		3021	id => "infobox",
		3022	title => "Shop Info",
		3023	reply => undef,
		3024	tooltip => "What your bargaining skill tells you about the shop",
		3025	},
		3026	"c/book" => {
		3027	id => "infobox",
		3028	title => "Book",
		3029	reply => undef,
		3030	tooltip => "The contents of a note or book",
		3031	},
		3032	"c/lookat" => {
		3033	id => "infobox",
		3034	title => "Look",
		3035	reply => undef,
		3036	tooltip => "What you saw there",
		3037	},
		3038	"c/who" => {
		3039	id => "infobox",
		3040	title => "Players",
		3041	reply => undef,
		3042	tooltip => "Shows players who are currently online",
		3043	},
		3044	"c/body" => {
		3045	id => "infobox",
		3046	title => "Body Parts",
		3047	reply => undef,
		3048	tooltip => "Shows which body parts you posess and are available",
		3049	},
		3050	"c/statistics" => {
		3051	id => "infobox",
		3052	title => "Statistics",
		3053	reply => undef,
		3054	tooltip => "Shows your primary statistics",
		3055	},
		3056	"c/skills" => {
		3057	id => "infobox",
		3058	title => "Skills",
		3059	reply => undef,
		3060	tooltip => "Shows your experience per skill and item power",
		3061	},
		3062	"c/shopitems" => {
		3063	id => "infobox",
		3064	title => "Shop Items",
		3065	reply => undef,
		3066	tooltip => "Shows the items currently for sale in this shop",
		3067	},
		3068	"c/resistances" => {
		3069	id => "infobox",
		3070	title => "Resistances",
		3071	reply => undef,
		3072	tooltip => "Shows your resistances",
		3073	},
		3074	"c/pets" => {
		3075	id => "infobox",
		3076	title => "Pets",
		3077	reply => undef,
		3078	tooltip => "Shows information abotu your pets/a specific pet",
		3079	},
		3080	"c/perceiveself" => {
		3081	id => "infobox",
		3082	title => "Perceive Self",
		3083	reply => undef,
		3084	tooltip => "You gained detailed knowledge about yourself",
		3085	},
		3086	"c/uptime" => {
		3087	id => "infobox",
		3088	title => "Uptime",
		3089	reply => undef,
		3090	tooltip => "How long the server has been running since last restart",
		3091	},
		3092	"c/mapinfo" => {
		3093	id => "infobox",
		3094	title => "Map Info",
		3095	reply => undef,
		3096	tooltip => "Information related to the maps",
		3097	},
		3098	"c/party" => {
		3099	id => "party",
		3100	title => "Party",
		3101	reply => "gsay ",
		3102	tooltip => "Messages and chat related to your party",
		3103	},
		3104	"c/death" => {
		3105	id => "death",
		3106	title => "Death",
		3107	reply => undef,
		3108	tooltip => "Reason for and more info about your most recent death",
		3109	},
		3110	"c/say" => $SAY_CHANNEL,
		3111	"c/chat" => $CHAT_CHANNEL,
		3112	);
		3113
		3114	sub cf::client::send_msg {
		3115	my ($self, $channel, $msg, $color, @extra) = @_;
		3116
		3117	$msg = $self->pl->expand_cfpod ($msg)
		3118	unless $color & cf::NDI_VERBATIM;
		3119
		3120	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3121
		3122	# check predefined channels, for the benefit of C
		3123	if ($CHANNEL{$channel}) {
		3124	$channel = $CHANNEL{$channel};
		3125
		3126	$self->ext_msg (channel_info => $channel);
		3127	$channel = $channel->{id};
		3128
		3129	} elsif (ref $channel) {
		3130	# send meta info to client, if not yet sent
		3131	unless (exists $self->{channel}{$channel->{id}}) {
		3132	$self->{channel}{$channel->{id}} = $channel;
		3133	$self->ext_msg (channel_info => $channel);
		3134	}
		3135
		3136	$channel = $channel->{id};
		3137	}
		3138
		3139	return unless @extra || length $msg;
		3140
		3141	# default colour, mask it out
		3142	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3143	if $color & cf::NDI_DEF;
		3144
		3145	my $pkt = "msg "
		3146	. $self->{json_coder}->encode (
		3147	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3148	);
		3149
		3150	$self->send_big_packet ($pkt);
		3151	}
		3152
		3153	=item $client->ext_msg ($type, @msg)
		3154
		3155	Sends an ext event to the client.
		3156
		3157	=cut
		3158
		3159	sub cf::client::ext_msg($$@) {
		3160	my ($self, $type, @msg) = @_;
		3161
		3162	if ($self->extcmd == 2) {
		3163	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3164	} elsif ($self->extcmd == 1) { # TODO: remove
		3165	push @msg, msgtype => "event_$type";
		3166	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3167	}
		3168	}
		3169
		3170	=item $client->ext_reply ($msgid, @msg)
		3171
		3172	Sends an ext reply to the client.
		3173
		3174	=cut
		3175
		3176	sub cf::client::ext_reply($$@) {
		3177	my ($self, $id, @msg) = @_;
		3178
		3179	if ($self->extcmd == 2) {
		3180	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3181	} elsif ($self->extcmd == 1) {
		3182	#TODO: version 1, remove
		3183	unshift @msg, msgtype => "reply", msgid => $id;
		3184	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3185	}
		3186	}
1970		3187
1971	=item $success = $client->query ($flags, "text", \&cb)	3188	=item $success = $client->query ($flags, "text", \&cb)
1972		3189
1973	Queues a query to the client, calling the given callback with	3190	Queues a query to the client, calling the given callback with
1974	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3191	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1975	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3192	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1976		3193
1977	Queries can fail, so check the return code. Or don't, as queries will become	3194	Queries can fail, so check the return code. Or don't, as queries will
1978	reliable at some point in the future.	3195	become reliable at some point in the future.
1979		3196
1980	=cut	3197	=cut
1981		3198
1982	sub cf::client::query {	3199	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	3200	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	3208	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3209	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		3210
1994	$self->send_packet ($self->{query_queue}[0][0])	3211	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	3212	if @{ $self->{query_queue} } == 1;
		3213
		3214	1
1996	}	3215	}
1997		3216
1998	cf::client->attach (	3217	cf::client->attach (
		3218	on_connect => sub {
		3219	my ($ns) = @_;
		3220
		3221	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3222	},
1999	on_reply => sub {	3223	on_reply => sub {
2000	my ($ns, $msg) = @_;	3224	my ($ns, $msg) = @_;
2001		3225
2002	# this weird shuffling is so that direct followup queries	3226	# this weird shuffling is so that direct followup queries
2003	# get handled first	3227	# get handled first
…		…
2015	} else {	3239	} else {
2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3240	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2017	}	3241	}
2018	}	3242	}
2019	},	3243	},
		3244	on_exticmd => sub {
		3245	my ($ns, $buf) = @_;
		3246
		3247	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3248
		3249	if (ref $msg) {
		3250	my ($type, $reply, @payload) =
		3251	"ARRAY" eq ref $msg
		3252	? @$msg
		3253	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3254
		3255	my @reply;
		3256
		3257	if (my $cb = $EXTICMD{$type}) {
		3258	@reply = $cb->($ns, @payload);
		3259	}
		3260
		3261	$ns->ext_reply ($reply, @reply)
		3262	if $reply;
		3263
		3264	} else {
		3265	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3266	}
		3267
		3268	cf::override;
		3269	},
2020	);	3270	);
2021		3271
2022	=item $client->async (\&cb)	3272	=item $client->async (\&cb)
2023		3273
2024	Create a new coroutine, running the specified callback. The coroutine will	3274	Create a new coroutine, running the specified callback. The coroutine will
…		…
2040		3290
2041	$coro	3291	$coro
2042	}	3292	}
2043		3293
2044	cf::client->attach (	3294	cf::client->attach (
2045	on_destroy => sub {	3295	on_client_destroy => sub {
2046	my ($ns) = @_;	3296	my ($ns) = @_;
2047		3297
2048	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3298	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2049	},	3299	},
2050	);	3300	);
…		…
2065	our $safe = new Safe "safe";	3315	our $safe = new Safe "safe";
2066	our $safe_hole = new Safe::Hole;	3316	our $safe_hole = new Safe::Hole;
2067		3317
2068	$SIG{FPE} = 'IGNORE';	3318	$SIG{FPE} = 'IGNORE';
2069		3319
2070	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3320	$safe->permit_only (Opcode::opset qw(
		3321	:base_core :base_mem :base_orig :base_math :base_loop
		3322	grepstart grepwhile mapstart mapwhile
		3323	sort time
		3324	));
2071		3325
2072	# here we export the classes and methods available to script code	3326	# here we export the classes and methods available to script code
2073		3327
2074	=pod	3328	=pod
2075		3329
2076	The following fucntions and emthods are available within a safe environment:	3330	The following functions and methods are available within a safe environment:
2077		3331
2078	cf::object contr pay_amount pay_player map	3332	cf::object
		3333	contr pay_amount pay_player map x y force_find force_add destroy
		3334	insert remove name archname title slaying race decrease split
		3335	value
		3336
2079	cf::object::player player	3337	cf::object::player
2080	cf::player peaceful	3338	player
2081	cf::map trigger	3339
		3340	cf::player
		3341	peaceful
		3342
		3343	cf::map
		3344	trigger
2082		3345
2083	=cut	3346	=cut
2084		3347
2085	for (	3348	for (
2086	["cf::object" => qw(contr pay_amount pay_player map)],	3349	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3350	insert remove inv nrof name archname title slaying race
		3351	decrease split destroy change_exp value msg lore send_msg)],
2087	["cf::object::player" => qw(player)],	3352	["cf::object::player" => qw(player)],
2088	["cf::player" => qw(peaceful)],	3353	["cf::player" => qw(peaceful send_msg)],
2089	["cf::map" => qw(trigger)],	3354	["cf::map" => qw(trigger)],
2090	) {	3355	) {
2091	no strict 'refs';
2092	my ($pkg, @funs) = @$_;	3356	my ($pkg, @funs) = @$_;
2093	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3357	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2094	for @funs;	3358	for @funs;
2095	}	3359	}
2096		3360
…		…
2111		3375
2112	my $qcode = $code;	3376	my $qcode = $code;
2113	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3377	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2114	$qcode =~ s/\n/\\n/g;	3378	$qcode =~ s/\n/\\n/g;
2115		3379
		3380	%vars = (_dummy => 0) unless %vars;
		3381
		3382	my @res;
2116	local $_;	3383	local $_;
2117	local @safe::cf::_safe_eval_args = values %vars;
2118		3384
2119	my $eval =	3385	my $eval =
2120	"do {\n"	3386	"do {\n"
2121	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3387	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2122	. "#line 0 \"{$qcode}\"\n"	3388	. "#line 0 \"{$qcode}\"\n"
2123	. $code	3389	. $code
2124	. "\n}"	3390	. "\n}"
2125	;	3391	;
2126		3392
		3393	if ($CFG{safe_eval}) {
2127	sub_generation_inc;	3394	sub_generation_inc;
		3395	local @safe::cf::_safe_eval_args = values %vars;
2128	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3396	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2129	sub_generation_inc;	3397	sub_generation_inc;
		3398	} else {
		3399	local @cf::_safe_eval_args = values %vars;
		3400	@res = wantarray ? eval eval : scalar eval $eval;
		3401	}
2130		3402
2131	if ($@) {	3403	if ($@) {
2132	warn "$@";	3404	warn "$@",
2133	warn "while executing safe code '$code'\n";	3405	"while executing safe code '$code'\n",
2134	warn "with arguments " . (join " ", %vars) . "\n";	3406	"with arguments " . (join " ", %vars) . "\n";
2135	}	3407	}
2136		3408
2137	wantarray ? @res : $res[0]	3409	wantarray ? @res : $res[0]
2138	}	3410	}
2139		3411
…		…
2153	=cut	3425	=cut
2154		3426
2155	sub register_script_function {	3427	sub register_script_function {
2156	my ($fun, $cb) = @_;	3428	my ($fun, $cb) = @_;
2157		3429
2158	no strict 'refs';	3430	$fun = "safe::$fun" if $CFG{safe_eval};
2159	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3431	*$fun = $safe_hole->wrap ($cb);
2160	}	3432	}
2161		3433
2162	=back	3434	=back
2163		3435
2164	=cut	3436	=cut
2165
2166	#############################################################################
2167
2168	=head2 EXTENSION DATABASE SUPPORT
2169
2170	Crossfire maintains a very simple database for extension use. It can
2171	currently store anything that can be serialised using Storable, which
2172	excludes objects.
2173
2174	The parameter C<$family> should best start with the name of the extension
2175	using it, it should be unique.
2176
2177	=over 4
2178
2179	=item $hashref = cf::db_get $family
2180
2181	Return a hashref for use by the extension C<$family>, which can be
2182	modified. After modifications, you have to call C<cf::db_dirty> or
2183	C<cf::db_sync>.
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database
2188
2189	=item cf::db_put $family => $hashref
2190
2191	Stores the given family hashref into the database. Updates are delayed, if
2192	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family hash. Updates are delayed, if you
2197	want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199	=item cf::db_dirty
2200
2201	Marks the database as dirty, to be updated at a later time.
2202
2203	=item cf::db_sync
2204
2205	Immediately write the database to disk I<if it is dirty>.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	{
2212	my $path = cf::localdir . "/database.pst";
2213
2214	sub db_load() {
2215	$DB = stat $path ? Storable::retrieve $path : { };
2216	}
2217
2218	my $pid;
2219
2220	sub db_save() {
2221	waitpid $pid, 0 if $pid;
2222	if (0 == ($pid = fork)) {
2223	$DB->{_meta}{version} = 1;
2224	Storable::nstore $DB, "$path~";
2225	rename "$path~", $path;
2226	cf::_exit 0 if defined $pid;
2227	}
2228	}
2229
2230	my $dirty;
2231
2232	sub db_sync() {
2233	db_save if $dirty;
2234	undef $dirty;
2235	}
2236
2237	my $idle = Event->idle (
2238	reentrant => 0,
2239	min => 10,
2240	max => 20,
2241	repeat => 0,
2242	data => WF_AUTOCANCEL,
2243	cb => \&db_sync,
2244	);
2245
2246	sub db_dirty() {
2247	$dirty = 1;
2248	$idle->start;
2249	}
2250
2251	sub db_get($;$) {
2252	@_ >= 2
2253	? $DB->{$_[0]}{$_[1]}
2254	: ($DB->{$_[0]} ||= { })
2255	}
2256
2257	sub db_put($$;$) {
2258	if (@_ >= 3) {
2259	$DB->{$_[0]}{$_[1]} = $_[2];
2260	} else {
2261	$DB->{$_[0]} = $_[1];
2262	}
2263	db_dirty;
2264	}
2265
2266	cf::global->attach (
2267	prio => 10000,
2268	on_cleanup => sub {
2269	db_sync;
2270	},
2271	);
2272	}
2273		3437
2274	#############################################################################	3438	#############################################################################
2275	# the server's init and main functions	3439	# the server's init and main functions
2276		3440
		3441	sub load_facedata($) {
		3442	my ($path) = @_;
		3443
		3444	# HACK to clear player env face cache, we need some signal framework
		3445	# for this (global event?)
		3446	%ext::player_env::MUSIC_FACE_CACHE = ();
		3447
		3448	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3449
		3450	trace "loading facedata from $path\n";
		3451
		3452	my $facedata = decode_storable load_file $path;
		3453
		3454	$facedata->{version} == 2
		3455	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3456
		3457	# patch in the exptable
		3458	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3459	$facedata->{resource}{"res/exp_table"} = {
		3460	type => FT_RSRC,
		3461	data => $exp_table,
		3462	hash => (Digest::MD5::md5 $exp_table),
		3463	};
		3464	cf::cede_to_tick;
		3465
		3466	{
		3467	my $faces = $facedata->{faceinfo};
		3468
		3469	while (my ($face, $info) = each %$faces) {
		3470	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3471
		3472	cf::face::set_visibility $idx, $info->{visibility};
		3473	cf::face::set_magicmap $idx, $info->{magicmap};
		3474	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3475	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3476	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3477
		3478	cf::cede_to_tick;
		3479	}
		3480
		3481	while (my ($face, $info) = each %$faces) {
		3482	next unless $info->{smooth};
		3483
		3484	my $idx = cf::face::find $face
		3485	or next;
		3486
		3487	if (my $smooth = cf::face::find $info->{smooth}) {
		3488	cf::face::set_smooth $idx, $smooth;
		3489	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3490	} else {
		3491	error "smooth face '$info->{smooth}' not found for face '$face'";
		3492	}
		3493
		3494	cf::cede_to_tick;
		3495	}
		3496	}
		3497
		3498	{
		3499	my $anims = $facedata->{animinfo};
		3500
		3501	while (my ($anim, $info) = each %$anims) {
		3502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3503	cf::cede_to_tick;
		3504	}
		3505
		3506	cf::anim::invalidate_all; # d'oh
		3507	}
		3508
		3509	{
		3510	my $res = $facedata->{resource};
		3511
		3512	while (my ($name, $info) = each %$res) {
		3513	if (defined $info->{type}) {
		3514	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3515
		3516	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3517	cf::face::set_type $idx, $info->{type};
		3518	} else {
		3519	$RESOURCE{$name} = $info; # unused
		3520	}
		3521
		3522	cf::cede_to_tick;
		3523	}
		3524	}
		3525
		3526	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3527
		3528	1
		3529	}
		3530
		3531	register_exticmd fx_want => sub {
		3532	my ($ns, $want) = @_;
		3533
		3534	while (my ($k, $v) = each %$want) {
		3535	$ns->fx_want ($k, $v);
		3536	}
		3537	};
		3538
2277	sub load_resources {	3539	sub load_resource_file($) {
2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3540	my $guard = lock_acquire "load_resource_file";
		3541
		3542	my $status = load_resource_file_ $_[0];
		3543	get_slot 0.1, 100;
		3544	cf::arch::commit_load;
		3545
		3546	$status
		3547	}
		3548
		3549	sub reload_regions {
		3550	# HACK to clear player env face cache, we need some signal framework
		3551	# for this (global event?)
		3552	%ext::player_env::MUSIC_FACE_CACHE = ();
		3553
		3554	load_resource_file "$MAPDIR/regions"
2279	or die "unable to load regions file\n";#d#	3555	or die "unable to load regions file\n";
2280	}
2281		3556
2282	sub cfg_load {	3557	for (cf::region::list) {
2283	open my $fh, "<:utf8", cf::confdir . "/config"	3558	$_->{match} = qr/$_->{match}/
2284	or return;	3559	if exists $_->{match};
		3560	}
		3561	}
2285		3562
2286	local $/;	3563	sub reload_facedata {
2287	*CFG = YAML::Syck::Load <$fh>;	3564	load_facedata "$DATADIR/facedata"
		3565	or die "unable to load facedata\n";
		3566	}
2288		3567
		3568	sub reload_archetypes {
		3569	load_resource_file "$DATADIR/archetypes"
		3570	or die "unable to load archetypes\n";
		3571	}
		3572
		3573	sub reload_treasures {
		3574	load_resource_file "$DATADIR/treasures"
		3575	or die "unable to load treasurelists\n";
		3576	}
		3577
		3578	sub reload_sound {
		3579	trace "loading sound config from $DATADIR/sound\n";
		3580
		3581	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3582
		3583	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3584	my $sound = $soundconf->{compat}[$_]
		3585	or next;
		3586
		3587	my $face = cf::face::find "sound/$sound->[1]";
		3588	cf::sound::set $sound->[0] => $face;
		3589	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3590	}
		3591
		3592	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3593	my $face = cf::face::find "sound/$v";
		3594	cf::sound::set $k => $face;
		3595	}
		3596	}
		3597
		3598	sub reload_resources {
		3599	trace "reloading resource files...\n";
		3600
		3601	reload_exp_table;
		3602	reload_materials;
		3603	reload_facedata;
		3604	reload_sound;
		3605	reload_archetypes;
		3606	reload_regions;
		3607	reload_treasures;
		3608
		3609	trace "finished reloading resource files\n";
		3610	}
		3611
		3612	sub reload_config {
		3613	trace "reloading config file...\n";
		3614
		3615	my $config = load_file "$CONFDIR/config";
		3616	utf8::decode $config;
		3617	*CFG = decode_yaml $config;
		3618
2289	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3619	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2290		3620
2291	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3621	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2292	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3622	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2293		3623
2294	if (exists $CFG{mlockall}) {	3624	if (exists $CFG{mlockall}) {
…		…
2298	};	3628	};
2299	warn $@ if $@;	3629	warn $@ if $@;
2300	}	3630	}
2301	}	3631	}
2302		3632
2303	sub init {	3633	sub pidfile() {
2304	load_resources;	3634	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3635	or die "$PIDFILE: $!";
		3636	flock $fh, &Fcntl::LOCK_EX
		3637	or die "$PIDFILE: flock: $!";
		3638	$fh
		3639	}
		3640
		3641	# make sure only one server instance is running at any one time
		3642	sub atomic {
		3643	my $fh = pidfile;
		3644
		3645	my $pid = <$fh>;
		3646	kill 9, $pid if $pid > 0;
		3647
		3648	seek $fh, 0, 0;
		3649	print $fh $$;
		3650	}
		3651
		3652	sub main_loop {
		3653	trace "EV::loop starting\n";
		3654	if (1) {
		3655	EV::loop;
		3656	}
		3657	trace "EV::loop returned\n";
		3658	goto &main_loop unless $REALLY_UNLOOP;
2305	}	3659	}
2306		3660
2307	sub main {	3661	sub main {
		3662	cf::init_globals; # initialise logging
		3663
		3664	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3665	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3666	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3667	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3668
		3669	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3670
2308	# we must not ever block the main coroutine	3671	# we must not ever block the main coroutine
2309	local $Coro::idle = sub {	3672	local $Coro::idle = sub {
2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3673	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2311	(async {	3674	(async {
2312	Event::one_event;	3675	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3676	EV::loop EV::LOOP_ONESHOT;
2313	})->prio (Coro::PRIO_MAX);	3677	})->prio (Coro::PRIO_MAX);
2314	};	3678	};
2315		3679
2316	cfg_load;	3680	evthread_start IO::AIO::poll_fileno;
2317	db_load;	3681
		3682	cf::sync_job {
		3683	cf::incloader::init ();
		3684
		3685	cf::init_anim;
		3686	cf::init_attackmess;
		3687	cf::init_dynamic;
		3688
		3689	cf::load_settings;
		3690
		3691	reload_resources;
		3692	reload_config;
		3693	db_init;
		3694
		3695	cf::init_uuid;
		3696	cf::init_signals;
		3697	cf::init_skills;
		3698
		3699	cf::init_beforeplay;
		3700
		3701	atomic;
		3702
2318	load_extensions;	3703	load_extensions;
2319		3704
2320	$TICK_WATCHER->start;	3705	utime time, time, $RUNTIMEFILE;
2321	Event::loop;	3706
		3707	# no (long-running) fork's whatsoever before this point(!)
		3708	use POSIX ();
		3709	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3710
		3711	cf::_post_init 0;
		3712	};
		3713
		3714	cf::object::thawer::errors_are_fatal 0;
		3715	info "parse errors in files are no longer fatal from this point on.\n";
		3716
		3717	my $free_main; $free_main = EV::idle sub {
		3718	undef $free_main;
		3719	undef &main; # free gobs of memory :)
		3720	};
		3721
		3722	goto &main_loop;
2322	}	3723	}
2323		3724
2324	#############################################################################	3725	#############################################################################
2325	# initialisation and cleanup	3726	# initialisation and cleanup
2326		3727
2327	# install some emergency cleanup handlers	3728	# install some emergency cleanup handlers
2328	BEGIN {	3729	BEGIN {
		3730	our %SIGWATCHER = ();
2329	for my $signal (qw(INT HUP TERM)) {	3731	for my $signal (qw(INT HUP TERM)) {
2330	Event->signal (	3732	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2331	reentrant => 0,
2332	data => WF_AUTOCANCEL,
2333	signal => $signal,
2334	prio => 0,
2335	cb => sub {
2336	cf::cleanup "SIG$signal";	3733	cf::cleanup "SIG$signal";
2337	},
2338	);	3734	};
		3735	}
		3736	}
		3737
		3738	sub write_runtime_sync {
		3739	my $t0 = AE::time;
		3740
		3741	# first touch the runtime file to show we are still running:
		3742	# the fsync below can take a very very long time.
		3743
		3744	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3745
		3746	my $guard = cf::lock_acquire "write_runtime";
		3747
		3748	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3749	or return;
		3750
		3751	my $value = $cf::RUNTIME + 90 + 10;
		3752	# 10 is the runtime save interval, for a monotonic clock
		3753	# 60 allows for the watchdog to kill the server.
		3754
		3755	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3756	and return;
		3757
		3758	# always fsync - this file is important
		3759	aio_fsync $fh
		3760	and return;
		3761
		3762	# touch it again to show we are up-to-date
		3763	aio_utime $fh, undef, undef;
		3764
		3765	close $fh
		3766	or return;
		3767
		3768	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3769	and return;
		3770
		3771	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3772
2339	}	3773	1
		3774	}
		3775
		3776	our $uuid_lock;
		3777	our $uuid_skip;
		3778
		3779	sub write_uuid_sync($) {
		3780	$uuid_skip ||= $_[0];
		3781
		3782	return if $uuid_lock;
		3783	local $uuid_lock = 1;
		3784
		3785	my $uuid = "$LOCALDIR/uuid";
		3786
		3787	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3788	or return;
		3789
		3790	my $value = uuid_seq uuid_cur;
		3791
		3792	unless ($value) {
		3793	info "cowardly refusing to write zero uuid value!\n";
		3794	return;
		3795	}
		3796
		3797	my $value = uuid_str $value + $uuid_skip;
		3798	$uuid_skip = 0;
		3799
		3800	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3801	and return;
		3802
		3803	# always fsync - this file is important
		3804	aio_fsync $fh
		3805	and return;
		3806
		3807	close $fh
		3808	or return;
		3809
		3810	aio_rename "$uuid~", $uuid
		3811	and return;
		3812
		3813	trace "uuid file written ($value).\n";
		3814
		3815	1
		3816
		3817	}
		3818
		3819	sub write_uuid($$) {
		3820	my ($skip, $sync) = @_;
		3821
		3822	$sync ? write_uuid_sync $skip
		3823	: async { write_uuid_sync $skip };
2340	}	3824	}
2341		3825
2342	sub emergency_save() {	3826	sub emergency_save() {
2343	my $freeze_guard = cf::freeze_mainloop;	3827	my $freeze_guard = cf::freeze_mainloop;
2344		3828
2345	warn "enter emergency perl save\n";	3829	info "emergency_perl_save: enter\n";
		3830
		3831	# this is a trade-off: we want to be very quick here, so
		3832	# save all maps without fsync, and later call a global sync
		3833	# (which in turn might be very very slow)
		3834	local $USE_FSYNC = 0;
2346		3835
2347	cf::sync_job {	3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
		3838
2348	# use a peculiar iteration method to avoid tripping on perl	3839	# use a peculiar iteration method to avoid tripping on perl
2349	# refcount bugs in for. also avoids problems with players	3840	# refcount bugs in for. also avoids problems with players
2350	# and maps saved/destroyed asynchronously.	3841	# and maps saved/destroyed asynchronously.
2351	warn "begin emergency player save\n";	3842	info "emergency_perl_save: begin player save\n";
2352	for my $login (keys %cf::PLAYER) {	3843	for my $login (keys %cf::PLAYER) {
2353	my $pl = $cf::PLAYER{$login} or next;	3844	my $pl = $cf::PLAYER{$login} or next;
2354	$pl->valid or next;	3845	$pl->valid or next;
		3846	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2355	$pl->save;	3847	$pl->save;
2356	}	3848	}
2357	warn "end emergency player save\n";	3849	info "emergency_perl_save: end player save\n";
2358		3850
2359	warn "begin emergency map save\n";	3851	cf::write_runtime_sync; # external watchdog should not bark
		3852
		3853	info "emergency_perl_save: begin map save\n";
2360	for my $path (keys %cf::MAP) {	3854	for my $path (keys %cf::MAP) {
2361	my $map = $cf::MAP{$path} or next;	3855	my $map = $cf::MAP{$path} or next;
2362	$map->valid or next;	3856	$map->valid or next;
2363	$map->save;	3857	$map->save;
2364	}	3858	}
2365	warn "end emergency map save\n";	3859	info "emergency_perl_save: end map save\n";
		3860
		3861	cf::write_runtime_sync; # external watchdog should not bark
		3862
		3863	info "emergency_perl_save: begin database checkpoint\n";
		3864	BDB::db_env_txn_checkpoint $DB_ENV;
		3865	info "emergency_perl_save: end database checkpoint\n";
		3866
		3867	info "emergency_perl_save: begin write uuid\n";
		3868	write_uuid_sync 1;
		3869	info "emergency_perl_save: end write uuid\n";
		3870
		3871	cf::write_runtime_sync; # external watchdog should not bark
		3872
		3873	trace "emergency_perl_save: syncing database to disk";
		3874	BDB::db_env_txn_checkpoint $DB_ENV;
		3875
		3876	info "emergency_perl_save: starting sync\n";
		3877	IO::AIO::aio_sync sub {
		3878	info "emergency_perl_save: finished sync\n";
		3879	};
		3880
		3881	cf::write_runtime_sync; # external watchdog should not bark
		3882
		3883	trace "emergency_perl_save: flushing outstanding aio requests";
		3884	while (IO::AIO::nreqs || BDB::nreqs) {
		3885	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3886	}
		3887
		3888	cf::write_runtime_sync; # external watchdog should not bark
2366	};	3889	};
2367		3890
2368	warn "leave emergency perl save\n";	3891	info "emergency_perl_save: leave\n";
2369	}	3892	}
2370		3893
		3894	sub post_cleanup {
		3895	my ($make_core) = @_;
		3896
		3897	IO::AIO::flush;
		3898
		3899	error Carp::longmess "post_cleanup backtrace"
		3900	if $make_core;
		3901
		3902	my $fh = pidfile;
		3903	unlink $PIDFILE if <$fh> == $$;
		3904	}
		3905
		3906	# a safer delete_package, copied from Symbol
		3907	sub clear_package($) {
		3908	my $pkg = shift;
		3909
		3910	# expand to full symbol table name if needed
		3911	unless ($pkg =~ /^main::.*::$/) {
		3912	$pkg = "main$pkg" if $pkg =~ /^::/;
		3913	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3914	$pkg .= '::' unless $pkg =~ /::$/;
		3915	}
		3916
		3917	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3918	my $stem_symtab = *{$stem}{HASH};
		3919
		3920	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3921	or return;
		3922
		3923	# clear all symbols
		3924	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3925	for my $name (keys %$leaf_symtab) {
		3926	_gv_clear *{"$pkg$name"};
		3927	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3928	}
		3929	}
		3930
2371	sub reload() {	3931	sub do_reload_perl() {
2372	# can/must only be called in main	3932	# can/must only be called in main
2373	if ($Coro::current != $Coro::main) {	3933	unless (in_main) {
2374	warn "can only reload from main coroutine";	3934	error "can only reload from main coroutine";
2375	return;	3935	return;
2376	}	3936	}
2377		3937
2378	warn "reloading...";	3938	return if $RELOAD++;
2379		3939
2380	warn "cancelling server ticker";	3940	my $t1 = AE::time;
2381	$TICK_WATCHER->cancel;
2382		3941
		3942	while ($RELOAD) {
		3943	cf::get_slot 0.1, -1, "reload_perl";
		3944	info "perl_reload: reloading...";
		3945
		3946	trace "perl_reload: entering sync_job";
		3947
		3948	cf::sync_job {
2383	cf::emergency_save;	3949	#cf::emergency_save;
2384		3950
2385	eval {
2386	# if anything goes wrong in here, we should simply crash as we already saved
2387
2388	warn "syncing database to disk";
2389	cf::db_sync;
2390
2391	warn "cancelling all WF_AUTOCANCEL watchers";
2392	for (Event::all_watchers) {
2393	$_->cancel if $_->data & WF_AUTOCANCEL;
2394	}
2395
2396	warn "flushing outstanding aio requests";
2397	for (;;) {
2398	IO::AIO::flush;
2399	Coro::cede;
2400	last unless IO::AIO::nreqs;
2401	warn "iterate...";
2402	}
2403
2404	warn "cancelling all extension coros";	3951	trace "perl_reload: cancelling all extension coros";
2405	$_->cancel for values %EXT_CORO;	3952	$_->cancel for values %EXT_CORO;
2406	%EXT_CORO = ();	3953	%EXT_CORO = ();
2407		3954
2408	warn "removing commands";	3955	trace "perl_reload: removing commands";
2409	%COMMAND = ();	3956	%COMMAND = ();
2410		3957
2411	warn "removing ext commands";	3958	trace "perl_reload: removing ext/exti commands";
2412	%EXTCMD = ();	3959	%EXTCMD = ();
		3960	%EXTICMD = ();
2413		3961
2414	warn "unloading/nuking all extensions";	3962	trace "perl_reload: unloading/nuking all extensions";
2415	for my $pkg (@EXTS) {	3963	for my $pkg (@EXTS) {
2416	warn "... unloading $pkg";	3964	trace "... unloading $pkg";
2417		3965
2418	if (my $cb = $pkg->can ("unload")) {	3966	if (my $cb = $pkg->can ("unload")) {
2419	eval {	3967	eval {
2420	$cb->($pkg);	3968	$cb->($pkg);
2421	1	3969	1
2422	} or warn "$pkg unloaded, but with errors: $@";	3970	} or error "$pkg unloaded, but with errors: $@";
		3971	}
		3972
		3973	trace "... clearing $pkg";
		3974	clear_package $pkg;
2423	}	3975	}
2424		3976
2425	warn "... nuking $pkg";
2426	Symbol::delete_package $pkg;
2427	}
2428
2429	warn "unloading all perl modules loaded from $LIBDIR";	3977	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2430	while (my ($k, $v) = each %INC) {	3978	while (my ($k, $v) = each %INC) {
2431	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3979	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2432		3980
2433	warn "... unloading $k";	3981	trace "... unloading $k";
2434	delete $INC{$k};	3982	delete $INC{$k};
2435		3983
2436	$k =~ s/\.pm$//;	3984	$k =~ s/\.pm$//;
2437	$k =~ s/\//::/g;	3985	$k =~ s/\//::/g;
2438		3986
2439	if (my $cb = $k->can ("unload_module")) {	3987	if (my $cb = $k->can ("unload_module")) {
2440	$cb->();	3988	$cb->();
		3989	}
		3990
		3991	clear_package $k;
2441	}	3992	}
2442		3993
2443	Symbol::delete_package $k;
2444	}
2445
2446	warn "getting rid of safe::, as good as possible";	3994	trace "perl_reload: getting rid of safe::, as good as possible";
2447	Symbol::delete_package "safe::$_"	3995	clear_package "safe::$_"
2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3996	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2449		3997
2450	warn "unloading cf.pm \"a bit\"";	3998	trace "perl_reload: unloading cf.pm \"a bit\"";
2451	delete $INC{"cf.pm"};	3999	delete $INC{"cf.pm"};
		4000	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2452		4001
2453	# don't, removes xs symbols, too,	4002	# don't, removes xs symbols, too,
2454	# and global variables created in xs	4003	# and global variables created in xs
2455	#Symbol::delete_package __PACKAGE__;	4004	#clear_package __PACKAGE__;
2456		4005
2457	warn "unload completed, starting to reload now";	4006	info "perl_reload: unload completed, starting to reload now";
2458		4007
2459	warn "reloading cf.pm";	4008	trace "perl_reload: reloading cf.pm";
2460	require cf;	4009	require cf;
2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4010	cf::_connect_to_perl_1;
2462		4011
2463	warn "loading config and database again";	4012	trace "perl_reload: loading config and database again";
2464	cf::cfg_load;	4013	cf::reload_config;
2465	cf::db_load;
2466		4014
2467	warn "loading extensions";	4015	trace "perl_reload: loading extensions";
2468	cf::load_extensions;	4016	cf::load_extensions;
2469		4017
		4018	if ($REATTACH_ON_RELOAD) {
2470	warn "reattaching attachments to objects/players";	4019	trace "perl_reload: reattaching attachments to objects/players";
2471	_global_reattach;	4020	_global_reattach; # objects, sockets
2472	warn "reattaching attachments to maps";	4021	trace "perl_reload: reattaching attachments to maps";
2473	reattach $_ for values %MAP;	4022	reattach $_ for values %MAP;
		4023	trace "perl_reload: reattaching attachments to players";
		4024	reattach $_ for values %PLAYER;
		4025	}
2474		4026
2475	warn "loading reloadable resources";	4027	cf::_post_init 1;
2476	load_resources;
2477		4028
2478	warn "restarting server ticker";	4029	trace "perl_reload: leaving sync_job";
2479		4030
2480	$TICK_WATCHER->start;	4031	1
		4032	} or do {
		4033	error $@;
		4034	cf::cleanup "perl_reload: error, exiting.";
		4035	};
		4036
		4037	--$RELOAD;
		4038	}
		4039
		4040	$t1 = AE::time - $t1;
		4041	info "perl_reload: completed in ${t1}s\n";
		4042	};
		4043
		4044	our $RELOAD_WATCHER; # used only during reload
		4045
		4046	sub reload_perl() {
		4047	# doing reload synchronously and two reloads happen back-to-back,
		4048	# coro crashes during coro_state_free->destroy here.
		4049
		4050	$RELOAD_WATCHER ||= cf::async {
		4051	Coro::AIO::aio_wait cache_extensions;
		4052
		4053	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4054	do_reload_perl;
		4055	undef $RELOAD_WATCHER;
		4056	};
2481	};	4057	};
2482		4058	}
2483	if ($@) {
2484	warn $@;
2485	warn "error while reloading, exiting.";
2486	exit 1;
2487	}
2488
2489	warn "reloaded";
2490	};
2491
2492	our $RELOAD_WATCHER; # used only during reload
2493		4059
2494	register_command "reload" => sub {	4060	register_command "reload" => sub {
2495	my ($who, $arg) = @_;	4061	my ($who, $arg) = @_;
2496		4062
2497	if ($who->flag (FLAG_WIZ)) {	4063	if ($who->flag (FLAG_WIZ)) {
2498	$who->message ("reloading server.");	4064	$who->message ("reloading server.");
2499		4065	async {
2500	# doing reload synchronously and two reloads happen back-to-back,	4066	$Coro::current->{desc} = "perl_reload";
2501	# coro crashes during coro_state_free->destroy here.
2502
2503	$RELOAD_WATCHER ||= Event->timer (
2504	reentrant => 0,
2505	after => 0,
2506	data => WF_AUTOCANCEL,
2507	cb => sub {
2508	reload;	4067	reload_perl;
2509	undef $RELOAD_WATCHER;
2510	},
2511	);	4068	};
2512	}	4069	}
2513	};	4070	};
2514		4071
2515	unshift @INC, $LIBDIR;	4072	#############################################################################
2516		4073
2517	my $bug_warning = 0;	4074	my $bug_warning = 0;
2518		4075
2519	$TICK_WATCHER = Event->timer (	4076	our @WAIT_FOR_TICK;
2520	reentrant => 0,	4077	our @WAIT_FOR_TICK_BEGIN;
2521	parked => 1,	4078
2522	prio => 0,	4079	sub wait_for_tick() {
2523	at => $NEXT_TICK || $TICK,	4080	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2524	data => WF_AUTOCANCEL,	4081
2525	cb => sub {	4082	my $signal = new Coro::Signal;
		4083	push @WAIT_FOR_TICK, $signal;
		4084	$signal->wait;
		4085	}
		4086
		4087	sub wait_for_tick_begin() {
		4088	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4089
		4090	my $signal = new Coro::Signal;
		4091	push @WAIT_FOR_TICK_BEGIN, $signal;
		4092	$signal->wait;
		4093	}
		4094
		4095	sub tick {
2526	if ($Coro::current != $Coro::main) {	4096	if ($Coro::current != $Coro::main) {
2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4097	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2528	unless ++$bug_warning > 10;	4098	unless ++$bug_warning > 10;
2529	return;	4099	return;
2530	}	4100	}
2531		4101
2532	$NOW = Event::time;
2533
2534	cf::server_tick; # one server iteration	4102	cf::server_tick; # one server iteration
2535	$RUNTIME += $TICK;
2536	$NEXT_TICK += $TICK;
2537		4103
2538	$WAIT_FOR_TICK->broadcast;	4104	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2540		4105
2541	Event::sweep;	4106	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2542	Coro::cede_notself;	4107	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4108	Coro::async_pool {
		4109	$Coro::current->{desc} = "runtime saver";
		4110	write_runtime_sync
		4111	or error "ERROR: unable to write runtime file: $!";
		4112	};
		4113	}
		4114
		4115	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4116	$sig->send;
		4117	}
		4118	while (my $sig = shift @WAIT_FOR_TICK) {
		4119	$sig->send;
		4120	}
		4121
		4122	$LOAD = ($NOW - $TICK_START) / $TICK;
		4123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4124
		4125	if (0) {
		4126	if ($NEXT_TICK) {
		4127	my $jitter = $TICK_START - $NEXT_TICK;
		4128	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4129	debug "jitter $JITTER\n";#d#
2543		4130	}
2544	# my $AFTER = Event::time;
2545	# warn $AFTER - $NOW;#d#
2546
2547	# if we are delayed by four ticks or more, skip them all
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2549
2550	$TICK_WATCHER->at ($NEXT_TICK);
2551	$TICK_WATCHER->start;
2552	},	4131	}
2553	);	4132	}
2554		4133
		4134	{
		4135	# configure BDB
		4136
		4137	BDB::min_parallel 16;
		4138	BDB::max_poll_reqs $TICK * 0.1;
		4139	$AnyEvent::BDB::WATCHER->priority (1);
		4140
		4141	unless ($DB_ENV) {
		4142	$DB_ENV = BDB::db_env_create;
		4143	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4144	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4145	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4146	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4147	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4148
		4149	cf::sync_job {
		4150	eval {
		4151	BDB::db_env_open
		4152	$DB_ENV,
		4153	$BDBDIR,
		4154	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4155	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4156	0666;
		4157
		4158	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4159	};
		4160
		4161	cf::cleanup "db_env_open(db): $@" if $@;
		4162	};
		4163	}
		4164
		4165	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4166	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4167	};
		4168	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4169	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4170	};
		4171	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4172	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4173	};
		4174	}
		4175
		4176	{
		4177	# configure IO::AIO
		4178
		4179	IO::AIO::min_parallel 8;
2555	IO::AIO::max_poll_time $TICK * 0.1;	4180	IO::AIO::max_poll_time $TICK * 0.1;
		4181	undef $AnyEvent::AIO::WATCHER;
		4182	}
2556		4183
2557	undef $Coro::AIO::WATCHER;	4184	our $_log_backtrace;
2558	$AIO_POLL_WATCHER = Event->io (	4185	our $_log_backtrace_last;
2559	reentrant => 0,
2560	fd => IO::AIO::poll_fileno,
2561	poll => 'r',
2562	prio => 6,
2563	data => WF_AUTOCANCEL,
2564	cb => \&IO::AIO::poll_cb,
2565	);
2566		4186
2567	$WRITE_RUNTIME_WATCHER = Event->timer (	4187	sub _log_backtrace {
2568	reentrant => 0,	4188	my ($msg, @addr) = @_;
2569	data => WF_AUTOCANCEL,	4189
2570	after => 1,	4190	$msg =~ s/\n$//;
2571	interval => 10,	4191
2572	prio => 6, # keep it lowest so it acts like a watchdog	4192	if ($_log_backtrace_last eq $msg) {
2573	cb => Coro::unblock_sub {	4193	LOG llevInfo, "[ABT] $msg\n";
2574	write_runtime	4194	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2575	or warn "ERROR: unable to write runtime file: $!";	4195	# limit the # of concurrent backtraces
		4196	} elsif ($_log_backtrace < 2) {
		4197	$_log_backtrace_last = $msg;
		4198	++$_log_backtrace;
		4199	my $perl_bt = Carp::longmess $msg;
		4200	async {
		4201	$Coro::current->{desc} = "abt $msg";
		4202
		4203	my @bt = fork_call {
		4204	@addr = map { sprintf "%x", $_ } @addr;
		4205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4207	or die "addr2line: $!";
		4208
		4209	my @funcs;
		4210	my @res = <$fh>;
		4211	chomp for @res;
		4212	while (@res) {
		4213	my ($func, $line) = splice @res, 0, 2, ();
		4214	push @funcs, "[$func] $line";
		4215	}
		4216
		4217	@funcs
		4218	};
		4219
		4220	LOG llevInfo, "[ABT] $perl_bt\n";
		4221	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4222	LOG llevInfo, "[ABT] $_\n" for @bt;
		4223	--$_log_backtrace;
		4224	};
		4225	} else {
		4226	LOG llevInfo, "[ABT] $msg\n";
		4227	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2576	},	4228	}
2577	);	4229	}
		4230
		4231	# load additional modules
		4232	require "cf/$_.pm" for @EXTRA_MODULES;
		4233	cf::_connect_to_perl_2;
2578		4234
2579	END { cf::emergency_save }	4235	END { cf::emergency_save }
2580		4236
2581	1	4237	1
2582		4238

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