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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.565 by root, Sat Apr 30 05:41:17 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		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
45	our $NEXT_TICK;	123	our $NEXT_TICK;
46	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);
47		132
48	our %CFG;	133	our %CFG;
49		134
50	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
52		138
53	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		142
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $REALLY_UNLOOP; # never set to true, please :)
61		155
62	binmode STDOUT;	156	binmode STDOUT;
63	binmode STDERR;	157	binmode STDERR;
64		158
65	# read virtual server time, if available	159	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
70	}	164	}
71		165
72	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		167
78	# a special map that is always available	168	mkdir $_
79	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
80	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
81		189
82	#############################################################################	190	#############################################################################
83		191
84	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
85		193
…		…
92	=item $cf::RUNTIME	200	=item $cf::RUNTIME
93		201
94	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
95	every server tick.	203	every server tick.
96		204
97	=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
98		208
99	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		213
102	=item $cf::NOW	214	=item $cf::NOW
103		215
104	The time of the last (current) server tick.	216	The time of the last (current) server tick.
105		217
106	=item $cf::TICK	218	=item $cf::TICK
107		219
108	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
109		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
110	=item %cf::CFG	232	=item %cf::CFG
111		233
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	235	from wherever your confdir points to.
114		236
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		238
117	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
118	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
119	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.
120	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.
121		259
122	=back	260	=back
123		261
124	=cut	262	=cut
125		263
126	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
127	*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 {
128	my $msg = join "", @_;	271	my $msg = join "", @_;
129	utf8::encode $msg;
130		272
131	$msg .= "\n"	273	$msg .= "\n"
132	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
133		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
134	LOG llevError, $msg;	278	LOG llevWarn, $msg;
135	};	279	};
136	}	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	};
137		294
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		302
145	# 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
146	# within the Safe compartment.	304	# within the Safe compartment.
147	for my $pkg (qw(	305	for my $pkg (qw(
148	cf::global cf::attachable	306	cf::global cf::attachable
149	cf::object cf::object::player	307	cf::object cf::object::player
150	cf::client cf::player	308	cf::client cf::player
151	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
152	cf::map cf::party cf::region	311	cf::party cf::region
153	)) {	312	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	314	}
157		315
158	$Event::DIED = sub {	316	$EV::DIED = sub {
159	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
160	};	318	};
161		319
162	my %ext_pkg;	320	#############################################################################
163	my @exts;	321
164	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
165		326
166	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
167		328
168	=over 4	329	=over 4
169		330
…		…
188	$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;
189	$d	350	$d
190	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
191	}	352	}
192		353
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
194		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
195	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
196		369
197	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
198		371
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
207		373
208	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
209		375
210	=cut	376	=cut
211		377
212	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
214	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	}
215	}	443	}
216		444
217	=item cf::lock_wait $string	445	=item cf::lock_wait $string
218		446
219	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
220		448
221	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
222		450
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
226	returned.	454	returned.
227		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
228	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
229	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
230		461
231	=cut	462	=item $locked = cf::lock_active $string
232		463
233	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;
234		469
235	sub lock_wait($) {	470	sub lock_wait($) {
236	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	472	}
244		473
245	sub lock_acquire($) {	474	sub lock_acquire($) {
246	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
247		477
248	# wait, to be sure we are not locked	478	sub lock_active($) {
249	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	480	}
258		481
259	sub freeze_mainloop {	482	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
261		484
262	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	486	}
264	$guard	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	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		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;
265	}	572	}
266		573
267	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
268		575
269	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		581
275	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
276		583
277	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
278		585
279	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
280	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
281	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.
282		590
283	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
284	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
285	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
286	fast or be very important.	594	fast or be very important.
…		…
288	=cut	596	=cut
289		597
290	sub sync_job(&) {	598	sub sync_job(&) {
291	my ($job) = @_;	599	my ($job) = @_;
292		600
293	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
294	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
296		606
297	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	608
299	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
300		610
301	my $busy = 1;	611	my $busy = 1;
302	my @res;	612	my @res;
303		613
304	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	616	@res = eval { $job->() };
306	warn $@ if $@;	617	error $@ if $@;
307	undef $busy;	618	undef $busy;
308	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
309		620
310	while ($busy) {	621	while ($busy) {
311	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
312	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
313		632
314	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
315	} else {	634	} else {
316	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
317		636
…		…
319	}	638	}
320	}	639	}
321		640
322	=item $coro = cf::async_ext { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
323		642
324	Like async, but this coro is automcatially being canceled when the	643	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	644	extension calling this is being unloaded.
326		645
327	=cut	646	=cut
328		647
329	sub async_ext(&) {	648	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
338		657
339	$coro	658	$coro
340	}	659	}
341		660
342	sub write_runtime {	661	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		662
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
346	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.
347		667
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		669
352	aio_fsync $fh	670	sub post_fork {
353	and return;	671	reset_signals;
		672	}
354		673
355	close $fh	674	sub fork_call(&@) {
356	or return;	675	my ($cb, @args) = @_;
357		676
358	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
359	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
360		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
361	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 });
362	}	864	}
363		865
364	=back	866	=back
365		867
366	=cut	868	=cut
367		869
368	#############################################################################	870	#############################################################################
369		871
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489
490	#############################################################################
491
492	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
493		873
494	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
495	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")
496	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
497		877
498	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>
499	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
500	crossfire+).	880	Deliantra).
501		881
502	=over 4	882	=over 4
503		883
504	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
505		885
…		…
549	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
550		930
551	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
552	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
553		933
554	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
555	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.
556		936
557	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
558		938
559	=over 4	939	=over 4
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	1000	our @CB_MAP = ();
621		1001
622	my %attachment;	1002	my %attachment;
623		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
624	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
626		1012
627	use sort 'stable';	1013	use sort 'stable';
628		1014
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
663		1049
664	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		1054
669	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
671		1057
672	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
677		1063
678	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
679	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
680		1066
681	} elsif (ref $type) {	1067	} elsif (ref $type) {
682	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
683		1069
684	} else {	1070	} else {
685	shift @arg;	1071	shift @arg;
686	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
687	}	1073	}
688	}	1074	}
689	}	1075	}
690		1076
691	sub _object_attach {	1077	sub _object_attach {
…		…
701	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
702	}	1088	}
703		1089
704	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
705	} else {	1091	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
707	}	1093	}
708		1094
709	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
710	}	1096	}
711		1097
…		…
713	if (ref $_[0]) {	1099	if (ref $_[0]) {
714	_object_attach @_;	1100	_object_attach @_;
715	} else {	1101	} else {
716	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
717	}	1103	}
		1104	_recalc_want;
718	};	1105	};
719		1106
720	# all those should be optimised	1107	# all those should be optimised
721	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
726	reattach ($obj);	1113	reattach ($obj);
727	} else {	1114	} else {
728	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
729	}	1116	}
		1117	_recalc_want;
730	};	1118	};
731		1119
732	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
734		1122
…		…
749	";	1137	";
750	die if $@;	1138	die if $@;
751	}	1139	}
752		1140
753	our $override;	1141	our $override;
754	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?
755		1143
756	sub override {	1144	sub override {
757	$override = 1;	1145	$override = 1;
758	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
759	}	1147	}
760		1148
761	sub do_invoke {	1149	sub do_invoke {
762	my $event = shift;	1150	my $event = shift;
763	my $callbacks = shift;	1151	my $callbacks = shift;
764		1152
765	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
766		1154
767	local $override;	1155	local $override;
768		1156
769	for (@$callbacks) {	1157	for (@$callbacks) {
770	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
771		1159
772	if ($@) {	1160	if ($@) {
773	warn "$@";
774	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
775	override;	1162	override;
776	}	1163	}
777		1164
778	return 1 if $override;	1165	return 1 if $override;
779	}	1166	}
780		1167
781	0	1168	0
782	}	1169	}
783		1170
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1172
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1174
788	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
789		1176
790	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
791	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
792	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1180
794	=back	1181	=back
795		1182
796	=cut	1183	=cut
797		1184
798	#############################################################################	1185	#############################################################################
799	# 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	}
800		1229
801	sub reattach {	1230	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1232	my ($obj) = @_;
		1233
		1234	# no longer needed after getting rid of delete_package?
		1235	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1236
805	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
806		1238
807	@$registry = ();	1239	@$registry = ();
808		1240
…		…
813	for (@$attach) {	1245	for (@$attach) {
814	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
815	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
816	}	1248	}
817	} else {	1249	} else {
818	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
819	}	1251	}
820	}	1252	}
821	}	1253	}
822		1254
823	cf::attachable->attach (	1255	cf::attachable->attach (
824	prio => -1000000,	1256	prio => -1000000,
825	on_instantiate => sub {	1257	on_instantiate => sub {
826	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
827		1259
828	$data = from_json $data;	1260	$data = decode_json $data;
829		1261
830	for (@$data) {	1262	for (@$data) {
831	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
832		1264
833	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1281	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
851		1283
852	sync_job {	1284	sync_job {
853	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
856		1290
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$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;
860	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
861	close $fh;	1298	aio_close $fh;
862		1299
863	if (@$objs) {	1300	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	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;
868	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
869	close $fh;	1309	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
871	}	1311	}
872	} else {	1312	} else {
873	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
874	}	1314	}
875		1315
876	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
877	} else {	1320	} else {
878	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
879	}	1322	}
880	} else {	1323	} else {
881	aio_unlink $filename;	1324	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
883	}	1326	}
884	}	1327	};
885	}	1328	}
886		1329
887	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
889		1332
…		…
901	or return;	1344	or return;
902		1345
903	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
905	or return;	1348	or return;
		1349
906	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
907	}	1352	}
908		1353
		1354	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
911	return ($data, $av);	1359	($data, $av)
912	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
913		1367
914	#############################################################################	1368	#############################################################################
915	# command handling &c	1369	# command handling &c
916		1370
917	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1385	}
932		1386
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1388
935	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.
936		1394
937	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
938	called.	1396	called.
939		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
940	=cut	1409	=cut
941		1410
942	sub register_extcmd {	1411	sub register_extcmd {
943	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
944		1413
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
949	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
950		1424
951	cf::player->attach (	1425	cf::player->attach (
952	on_command => sub {	1426	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
954		1428
955	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
956	or return;	1430	or return;
957		1431
…		…
962	cf::override;	1436	cf::override;
963	},	1437	},
964	on_extcmd => sub {	1438	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
966		1440
967	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1442
969	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
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
975	} else {	1458	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1460	}
978		1461
979	cf::override;	1462	cf::override;
980	},	1463	},
981	);	1464	);
982		1465
983	sub register {	1466	# "readahead" all extensions
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	1467	sub cache_extensions {
990	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
991		1469
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
993	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
994	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}	1473	}
1042	}	1474	};
1043		1475
1044	# remove extcmds	1476	$grp
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	1477	}
1058		1478
1059	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1060	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1486	next unless -r $path;
1062	eval {	1487
1063	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	}
1064	1	1551	}
1065	} 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	}
1066	}	1564	};
1067	}	1565	}
1068		1566
1069	#############################################################################	1567	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1568
1072	*cf::mapsupport::on_clean = sub {	1569	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1570
1085	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
1086		1572
1087	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
1088		1574
1089	=cut	1575	=cut
1090		1576
1091	package cf::player;	1577	package cf::player;
1092		1578
…		…
1094		1580
1095	=head3 cf::player	1581	=head3 cf::player
1096		1582
1097	=over 4	1583	=over 4
1098		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
1099	=item cf::player::find $login	1599	=item cf::player::find $login
1100		1600
1101	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
1102		1602
1103	=cut	1603	=cut
1104		1604
1105	sub playerdir($) {	1605	sub playerdir($) {
1106	cf::localdir	1606	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1608	}
1112		1609
1113	sub path($) {	1610	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1612
1116	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
1117	}	1614	}
1118		1615
1119	sub find_active($) {	1616	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
1124		1621
1125	sub exists($) {	1622	sub exists($) {
1126	my ($login) = @_;	1623	my ($login) = @_;
1127		1624
1128	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
1130	}	1627	}
1131		1628
1132	sub find($) {	1629	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1631	my $login = $_[0];
1135		1632
1136	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
1137		1634
1138	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
1139	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
1140	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;
1141	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
1142	}	1652	}
1143	}	1653	}
1144	}	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	);
1145		1668
1146	sub save($) {	1669	sub save($) {
1147	my ($pl) = @_;	1670	my ($pl) = @_;
1148		1671
1149	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1154	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1155		1678
1156	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1158		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
1159	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1160	Coro::cede;	1688	cf::cede_to_tick;
1161	}	1689	}
1162		1690
1163	sub new($) {	1691	sub new($) {
1164	my ($login) = @_;	1692	my ($login) = @_;
1165		1693
…		…
1171	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1172		1700
1173	$self	1701	$self
1174	}	1702	}
1175		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
1176	=item $pl->quit_character	1714	=item $pl->quit_character
1177		1715
1178	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
1179	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1180		1718
1181	=cut	1719	=cut
1182		1720
1183	sub quit_character {	1721	sub quit_character {
1184	my ($pl) = @_;	1722	my ($pl) = @_;
1185		1723
		1724	my $name = $pl->ob->name;
		1725
1186	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1187	$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
1188		1728
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1190	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1192	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1193		1737
1194	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1198	$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
1199	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;
1200	}	1764	}
1201		1765
1202	=item cf::player::list_logins	1766	=item cf::player::list_logins
1203		1767
1204	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
1205	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1206		1770
1207	=cut	1771	=cut
1208		1772
1209	sub list_logins {	1773	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1775	or return [];
1212		1776
1213	my @logins;	1777	my @logins;
1214		1778
1215	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") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1219		1789
1220	utf8::decode $login;	1790	utf8::decode $login;
1221	push @logins, $login;	1791	push @logins, $login;
1222	}	1792	}
1223		1793
1224	\@logins	1794	\@logins
1225	}	1795	}
1226		1796
1227	=item $player->maps	1797	=item $player->maps
1228		1798
		1799	=item cf::player::maps $login
		1800
1229	Returns an arrayref of cf::path's of all maps that are private for this	1801	Returns an arrayref of map paths that are private for this
1230	player. May block.	1802	player. May block.
1231		1803
1232	=cut	1804	=cut
1233		1805
1234	sub maps($) {	1806	sub maps($) {
1235	my ($pl) = @_;	1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1810
1237	my $files = aio_readdir playerdir $pl	1811	my $files = aio_readdir playerdir $pl
1238	or return;	1812	or return;
1239		1813
1240	my @paths;	1814	my @paths;
1241		1815
1242	for (@$files) {	1816	for (@$files) {
1243	utf8::decode $_;	1817	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1818	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1819	next unless /^$PATH_SEP/o;
1246		1820
1247	s/$PATH_SEP/\//g;	1821	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1822	}
1250		1823
1251	\@paths	1824	\@paths
1252	}	1825	}
1253		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1255		1832
1256	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1257		1834
1258	=cut	1835	=cut
1259		1836
1260	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1262		1839
1263	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1841	}
1267		1842
1268	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		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	}
1269		1885
1270	=back	1886	=back
1271
1272		1887
1273	=head3 cf::map	1888	=head3 cf::map
1274		1889
1275	=over 4	1890	=over 4
1276		1891
…		…
1279	package cf::map;	1894	package cf::map;
1280		1895
1281	use Fcntl;	1896	use Fcntl;
1282	use Coro::AIO;	1897	use Coro::AIO;
1283		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1284	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1286		1905
1287	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1288	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1289		1946
1290	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1291	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959	# !up !down for quad maps, or other maps with up/down layers
		1960
		1961	$path =~ s/$PATH_SEP/\//go;
		1962
		1963	# treat it as relative path if it starts with
		1964	# something that looks reasonable
		1965	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1966	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1967
		1968	$base =~ s{[^/]+/?$}{};
		1969	$path = "$base/$path";
		1970
		1971	} elsif ($path eq '!up') {
		1972	$base && ref $base
		1973	or Carp::carp "normalise called with relative tile path and no base: '$path'";
		1974
		1975	my $uppth = $base->tile_path (cf::TILE_UP);
		1976	$path = $uppth if $uppth;
		1977
		1978	} elsif ($path eq '!down') {
		1979	$base && ref $base
		1980	or Carp::carp "normalise called with relative tile path and no base: '$path'";
		1981
		1982	my $dpth = $base->tile_path (cf::TILE_DOWN);
		1983	$path = $dpth if $dpth;
		1984	}
		1985
		1986	for ($path) {
		1987	redo if s{/\.?/}{/};
		1988	redo if s{/[^/]+/\.\./}{/};
		1989	}
		1990
1292	$path,	1991	$path
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})
1304	}	1992	}
1305		1993
1306	# and all this just because we cannot iterate over	1994	sub new_from_path {
1307	# all maps in C++...	1995	my (undef, $path, $base) = @_;
1308	sub change_all_map_light {	1996
		1997	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1998
		1999	$path = normalise $path, $base;
		2000
		2001	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2002	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2003	my $self = bless cf::map::new, $pkg;
		2004	$self->{path} = $path; $self->path ($path);
		2005	$self->init; # pass $1 etc.
		2006	return $self;
		2007	}
		2008	}
		2009
		2010	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2011	()
		2012	}
		2013
		2014	# may re-bless or do other evil things
		2015	sub init {
1309	my ($change) = @_;	2016	my ($self) = @_;
1310		2017
1311	$_->change_map_light ($change)	2018	$self
1312	for grep $_->outdoor, values %cf::MAP;
1313	}	2019	}
1314		2020
		2021	sub as_string {
		2022	my ($self) = @_;
		2023
		2024	"$self->{path}"
		2025	}
		2026
		2027	# the displayed name, this is a one way mapping
		2028	sub visible_name {
		2029	&as_string
		2030	}
		2031
		2032	# the original (read-only) location
		2033	sub load_path {
		2034	my ($self) = @_;
		2035
		2036	"$MAPDIR/$self->{path}.map"
		2037	}
		2038
		2039	# the temporary/swap location
		2040	sub save_path {
		2041	my ($self) = @_;
		2042
		2043	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2044	"$TMPDIR/$path.map"
		2045	}
		2046
		2047	# the unique path, undef == no special unique path
		2048	sub uniq_path {
		2049	my ($self) = @_;
		2050
		2051	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2052	"$UNIQUEDIR/$path"
		2053	}
		2054
		2055	sub decay_objects {
		2056	my ($self) = @_;
		2057
		2058	return if $self->{deny_reset};
		2059
		2060	$self->do_decay_objects;
		2061	}
		2062
		2063	sub unlink_save {
		2064	my ($self) = @_;
		2065
		2066	utf8::encode (my $save = $self->save_path);
		2067	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2068	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2069	}
		2070
1315	sub try_load_header($) {	2071	sub load_header_from($) {
1316	my ($path) = @_;	2072	my ($self, $path) = @_;
1317		2073
1318	utf8::encode $path;	2074	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	2075	my $f = new_from_file cf::object::thawer $path
1320	or return;	2076	or return;
1321		2077
1322	my $map = cf::map::new	2078	$self->_load_header ($f)
1323	or return;	2079	or return;
1324		2080
1325	# for better error messages only, will be overwritten	2081	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	2082	$f->resolve_delayed_derefs;
1327		2083
1328	$map->load_header ($path)	2084	$self->{load_path} = $path;
		2085
		2086	1
		2087	}
		2088
		2089	sub load_header_orig {
		2090	my ($self) = @_;
		2091
		2092	$self->load_header_from ($self->load_path)
		2093	}
		2094
		2095	sub load_header_temp {
		2096	my ($self) = @_;
		2097
		2098	$self->load_header_from ($self->save_path)
		2099	}
		2100
		2101	sub prepare_temp {
		2102	my ($self) = @_;
		2103
		2104	$self->last_access ((delete $self->{last_access})
		2105	|| $cf::RUNTIME); #d#
		2106	# safety
		2107	$self->{instantiate_time} = $cf::RUNTIME
		2108	if $self->{instantiate_time} > $cf::RUNTIME;
		2109	}
		2110
		2111	sub prepare_orig {
		2112	my ($self) = @_;
		2113
		2114	$self->{load_original} = 1;
		2115	$self->{instantiate_time} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117	$self->instantiate;
		2118	}
		2119
		2120	sub load_header {
		2121	my ($self) = @_;
		2122
		2123	if ($self->load_header_temp) {
		2124	$self->prepare_temp;
		2125	} else {
		2126	$self->load_header_orig
1329	or return;	2127	or return;
		2128	$self->prepare_orig;
		2129	}
1330		2130
1331	$map->{load_path} = $path;	2131	$self->{deny_reset} = 1
		2132	if $self->no_reset;
1332		2133
1333	$map	2134	$self->default_region (cf::region::find_by_path $self->{path})
		2135	unless $self->default_region;
		2136
		2137	1
1334	}	2138	}
1335		2139
1336	sub find;	2140	sub find;
1337	sub find {	2141	sub find {
1338	my ($path, $origin) = @_;	2142	my ($path, $origin) = @_;
1339		2143
1340	#warn "find<$path,$origin>\n";#d#	2144	cf::cede_to_tick;
1341		2145
1342	$path = new cf::path $path, $origin && $origin->path;	2146	$path = normalise $path, $origin;
1343	my $key = $path->as_string;
1344		2147
1345	cf::lock_wait "map_find:$key";	2148	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1346
1347	$cf::MAP{$key} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	2149	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2150
1350	# do it the slow way	2151	$cf::MAP{$path} || do {
1351	my $map = try_load_header $path->save_path;	2152	my $map = new_from_path cf::map $path
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2153	or return;
1369		2154
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2155	$map->{last_save} = $cf::RUNTIME;
1382		2156
1383	Coro::cede;	2157	$map->load_header
		2158	or return;
1384		2159
1385	if ($map->should_reset) {	2160	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2161	# doing this can freeze the server in a sync job, obviously
		2162	#$cf::WAIT_FOR_TICK->wait;
		2163	undef $guard2;
		2164	undef $guard1;
1386	$map->reset;	2165	$map->reset;
1387	undef $guard;
1388	$map = find $path	2166	return find $path;
1389	or return;
1390	}	2167	}
1391		2168
1392	$cf::MAP{$key} = $map	2169	$cf::MAP{$path} = $map
1393	}	2170	}
1394	}	2171	}
		2172
		2173	sub pre_load { }
		2174	#sub post_load { } # XS
1395		2175
1396	sub load {	2176	sub load {
1397	my ($self) = @_;	2177	my ($self) = @_;
1398		2178
		2179	local $self->{deny_reset} = 1; # loading can take a long time
		2180
1399	my $path = $self->{path};	2181	my $path = $self->{path};
		2182
		2183	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2184	my $guard = cf::lock_acquire "map_data:$path";
1401		2185
		2186	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2187	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2188
1404	$self->in_memory (cf::MAP_LOADING);	2189	$self->in_memory (cf::MAP_LOADING);
1405		2190
1406	$self->alloc;	2191	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2192
		2193	$self->pre_load;
		2194	cf::cede_to_tick;
		2195
		2196	if (exists $self->{load_path}) {
		2197	my $f = new_from_file cf::object::thawer $self->{load_path};
		2198	$f->skip_block;
		2199	$self->_load_objects ($f)
1408	or return;	2200	or return;
1409		2201
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2202	$self->post_load_original
1411	if delete $self->{load_original};	2203	if delete $self->{load_original};
1412		2204
1413	if (my $uniq = $path->uniq_path) {	2205	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2206	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2207	unless (aio_stat $uniq) {
		2208	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2209	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2210	$self->_load_objects ($f);
		2211	$f->resolve_delayed_derefs;
		2212	}
		2213	}
1418	}	2214	}
1419	}
1420		2215
1421	Coro::cede;	2216	$f->resolve_delayed_derefs;
		2217	}
1422		2218
		2219	cf::cede_to_tick;
1423	# now do the right thing for maps	2220	# now do the right thing for maps
1424	$self->link_multipart_objects;	2221	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2222	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2223	unless $self->difficulty;
		2224	cf::cede_to_tick;
		2225
		2226	unless ($self->{deny_activate}) {
		2227	$self->decay_objects;
		2228	$self->fix_auto_apply;
		2229	$self->update_buttons;
		2230	cf::cede_to_tick;
1436	$self->activate;	2231	$self->activate;
1437	}	2232	}
1438		2233
1439	Coro::cede;	2234	$self->{last_save} = $cf::RUNTIME;
		2235	$self->last_access ($cf::RUNTIME);
1440		2236
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2237	$self->in_memory (cf::MAP_ACTIVE);
		2238	}
		2239
		2240	$self->post_load;
		2241
		2242	1
		2243	}
		2244
		2245	# customize the map for a given player, i.e.
		2246	# return the _real_ map. used by e.g. per-player
		2247	# maps to change the path to ~playername/mappath
		2248	sub customise_for {
		2249	my ($self, $ob) = @_;
		2250
		2251	return find "~" . $ob->name . "/" . $self->{path}
		2252	if $self->per_player;
		2253
		2254	# return find "?party/" . $ob->name . "/" . $self->{path}
		2255	# if $self->per_party;
		2256
		2257	$self
1442	}	2258	}
1443		2259
1444	# find and load all maps in the 3x3 area around a map	2260	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	2261	sub load_neighbours {
1446	my ($map) = @_;	2262	my ($map) = @_;
1447		2263
1448	my @diag; # diagonal neighbours	2264	my @neigh; # diagonal neighbours
1449		2265
1450	for (0 .. 3) {	2266	for (0 .. 3) {
1451	my $neigh = $map->tile_path ($_)	2267	my $neigh = $map->tile_path ($_)
1452	or next;	2268	or next;
1453	$neigh = find $neigh, $map	2269	$neigh = find $neigh, $map
1454	or next;	2270	or next;
1455	$neigh->load;	2271	$neigh->load;
1456		2272
		2273	# now find the diagonal neighbours
		2274	push @neigh,
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2275	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2276	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}	2277	}
1460		2278
1461	for (@diag) {	2279	for (grep defined $_->[0], @neigh) {
		2280	my ($path, $origin) = @$_;
1462	my $neigh = find @$_	2281	my $neigh = find $path, $origin
1463	or next;	2282	or next;
1464	$neigh->load;	2283	$neigh->load;
1465	}	2284	}
1466	}	2285	}
1467		2286
1468	sub find_sync {	2287	sub find_sync {
1469	my ($path, $origin) = @_;	2288	my ($path, $origin) = @_;
1470		2289
1471	cf::sync_job { find $path, $origin }	2290	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2291	if $Coro::current == $Coro::main;
		2292
		2293	find $path, $origin
1472	}	2294	}
1473		2295
1474	sub do_load_sync {	2296	sub do_load_sync {
1475	my ($map) = @_;	2297	my ($map) = @_;
1476		2298
1477	cf::sync_job { $map->load };	2299	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2300	if $Coro::current == $Coro::main;
		2301
		2302	$map->load;
1478	}	2303	}
1479		2304
1480	our %MAP_PREFETCH;	2305	our %MAP_PREFETCH;
		2306	our $MAP_PREFETCHER = undef;
		2307
		2308	sub find_async {
		2309	my ($path, $origin, $load) = @_;
		2310
		2311	$path = normalise $path, $origin;
		2312
		2313	if (my $map = $cf::MAP{$path}) {
		2314	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2315	}
		2316
		2317	$MAP_PREFETCH{$path} |= $load;
		2318
1481	our $MAP_PREFETCHER = Coro::async {	2319	$MAP_PREFETCHER ||= cf::async {
1482	while () {	2320	$Coro::current->{desc} = "map prefetcher";
		2321
1483	while (%MAP_PREFETCH) {	2322	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2323	while (my ($k, $v) = each %MAP_PREFETCH) {
1485	or next;	2324	if (my $map = find $k) {
		2325	$map->load if $v;
		2326	}
		2327
1486	my $path = delete $MAP_PREFETCH{$key};	2328	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2329	}
1492	Coro::schedule;	2330	}
		2331	undef $MAP_PREFETCHER;
1493	}	2332	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2333	$MAP_PREFETCHER->prio (6);
1508		2334
1509	()	2335	()
		2336	}
		2337
		2338	# common code, used by both ->save and ->swapout
		2339	sub _save {
		2340	my ($self) = @_;
		2341
		2342	$self->{last_save} = $cf::RUNTIME;
		2343
		2344	return unless $self->dirty;
		2345
		2346	my $save = $self->save_path; utf8::encode $save;
		2347	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2348
		2349	$self->{load_path} = $save;
		2350
		2351	return if $self->{deny_save};
		2352
		2353	local $self->{last_access} = $self->last_access;#d#
		2354
		2355	cf::async {
		2356	$Coro::current->{desc} = "map player save";
		2357	$_->contr->save for $self->players;
		2358	};
		2359
		2360	cf::get_slot 0.02;
		2361
		2362	if ($uniq) {
		2363	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2364	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2365	} else {
		2366	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2367	}
1510	}	2368	}
1511		2369
1512	sub save {	2370	sub save {
1513	my ($self) = @_;	2371	my ($self) = @_;
1514		2372
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2374
1517	$self->{last_save} = $cf::RUNTIME;	2375	$self->_save;
1518
1519	return unless $self->dirty;
1520
1521	my $save = $self->{path}->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1523
1524	$self->{load_path} = $save;
1525
1526	return if $self->{deny_save};
1527
1528	local $self->{last_access} = $self->last_access;#d#
1529
1530	cf::async {
1531	$_->contr->save for $self->players;
1532	};
1533
1534	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}
1540	}	2376	}
1541		2377
1542	sub swap_out {	2378	sub swap_out {
1543	my ($self) = @_;	2379	my ($self) = @_;
1544		2380
1545	# save first because save cedes
1546	$self->save;
1547
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2381	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2382
		2383	return if $self->in_memory != cf::MAP_ACTIVE;
		2384	return if $self->{deny_save};
1550	return if $self->players;	2385	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};
1553		2386
		2387	# first deactivate the map and "unlink" it from the core
		2388	$self->deactivate;
		2389	$_->clear_links_to ($self) for values %cf::MAP;
		2390	$self->in_memory (cf::MAP_SWAPPED);
		2391
		2392	# then atomically save
		2393	$self->_save;
		2394
		2395	# then free the map
1554	$self->clear;	2396	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2397	}
1557		2398
1558	sub reset_at {	2399	sub reset_at {
1559	my ($self) = @_;	2400	my ($self) = @_;
1560		2401
1561	# TODO: safety, remove and allow resettable per-player maps	2402	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2403	return 1e99 if $self->{deny_reset};
1564		2404
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2405	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2406	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2407
…		…
1572	my ($self) = @_;	2412	my ($self) = @_;
1573		2413
1574	$self->reset_at <= $cf::RUNTIME	2414	$self->reset_at <= $cf::RUNTIME
1575	}	2415	}
1576		2416
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2417	sub reset {
1599	my ($self) = @_;	2418	my ($self) = @_;
1600		2419
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2420	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2421
1603	return if $self->players;	2422	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2423
1606	warn "resetting map ", $self->path;#d#	2424	cf::trace "resetting map ", $self->path, "\n";
		2425
		2426	$self->in_memory (cf::MAP_SWAPPED);
		2427
		2428	# need to save uniques path
		2429	unless ($self->{deny_save}) {
		2430	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2431
		2432	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2433	if $uniq;
		2434	}
1607		2435
1608	delete $cf::MAP{$self->path};	2436	delete $cf::MAP{$self->path};
1609		2437
		2438	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2439	$_->clear_links_to ($self) for values %cf::MAP;
		2440	$self->clear;
1611		2441
1612	$self->unlink_save;	2442	$self->unlink_save;
1613	$self->destroy;	2443	$self->destroy;
1614	}	2444	}
1615		2445
1616	my $nuke_counter = "aaaa";	2446	my $nuke_counter = "aaaa";
1617		2447
1618	sub nuke {	2448	sub nuke {
1619	my ($self) = @_;	2449	my ($self) = @_;
1620		2450
		2451	{
		2452	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2453
		2454	delete $cf::MAP{$self->path};
		2455
		2456	$self->unlink_save;
		2457
		2458	bless $self, "cf::map::wrap";
		2459	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2460	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2461	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2462	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2463
		2464	$cf::MAP{$self->path} = $self;
		2465	}
		2466
1624	$self->reset; # polite request, might not happen	2467	$self->reset; # polite request, might not happen
1625	}	2468	}
1626		2469
1627	sub customise_for {	2470	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2471
1630	if ($map->per_player) {	2472	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2473	maps. May block.
		2474
		2475	=cut
		2476
		2477	sub tmp_maps() {
1632	}	2478	[
		2479	map {
		2480	utf8::decode $_;
		2481	/\.map$/
		2482	? normalise $_
		2483	: ()
		2484	} @{ aio_readdir $TMPDIR or [] }
		2485	]
		2486	}
1633		2487
		2488	=item $maps = cf::map::random_maps
		2489
		2490	Returns an arrayref with all map paths of currently instantiated and saved
		2491	random maps. May block.
		2492
		2493	=cut
		2494
		2495	sub random_maps() {
		2496	[
		2497	map {
		2498	utf8::decode $_;
		2499	/\.map$/
		2500	? normalise "?random/$_"
		2501	: ()
		2502	} @{ aio_readdir $RANDOMDIR or [] }
		2503	]
		2504	}
		2505
		2506	=item cf::map::unique_maps
		2507
		2508	Returns an arrayref of paths of all shared maps that have
		2509	instantiated unique items. May block.
		2510
		2511	=cut
		2512
		2513	sub unique_maps() {
		2514	[
		2515	map {
		2516	utf8::decode $_;
		2517	s/\.map$//; # TODO future compatibility hack
		2518	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2519	? ()
		2520	: normalise $_
		2521	} @{ aio_readdir $UNIQUEDIR or [] }
		2522	]
		2523	}
		2524
		2525	=item cf::map::static_maps
		2526
		2527	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2528	file in the shared directory excluding F</styles> and F</editor>). May
		2529	block.
		2530
		2531	=cut
		2532
		2533	sub static_maps() {
		2534	my @dirs = "";
		2535	my @maps;
		2536
		2537	while (@dirs) {
		2538	my $dir = shift @dirs;
		2539
		2540	next if $dir eq "/styles" || $dir eq "/editor";
		2541
		2542	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2543	or return;
		2544
		2545	for (@$files) {
		2546	s/\.map$// or next;
		2547	utf8::decode $_;
		2548	push @maps, "$dir/$_";
		2549	}
		2550
		2551	push @dirs, map "$dir/$_", @$dirs;
		2552	}
		2553
1634	$map	2554	\@maps
1635	}	2555	}
1636
1637	package cf;
1638		2556
1639	=back	2557	=back
1640		2558
1641	=head3 cf::object	2559	=head3 cf::object
1642		2560
…		…
1646		2564
1647	=over 4	2565	=over 4
1648		2566
1649	=item $ob->inv_recursive	2567	=item $ob->inv_recursive
1650		2568
1651	Returns the inventory of the object _and_ their inventories, recursively.	2569	Returns the inventory of the object I<and> their inventories, recursively,
		2570	but I<not> the object itself.
1652		2571
1653	=cut	2572	=cut
1654		2573
1655	sub inv_recursive_;	2574	sub inv_recursive_;
1656	sub inv_recursive_ {	2575	sub inv_recursive_ {
…		…
1659		2578
1660	sub inv_recursive {	2579	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2580	inv_recursive_ inv $_[0]
1662	}	2581	}
1663		2582
		2583	=item $ref = $ob->ref
		2584
		2585	Creates and returns a persistent reference to an object that can be stored as a string.
		2586
		2587	=item $ob = cf::object::deref ($refstring)
		2588
		2589	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2590	even if the object actually exists. May block.
		2591
		2592	=cut
		2593
		2594	sub deref {
		2595	my ($ref) = @_;
		2596
		2597	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2598	my ($uuid, $name) = ($1, $2);
		2599	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2600	or return;
		2601	$pl->ob->uuid eq $uuid
		2602	or return;
		2603
		2604	$pl->ob
		2605	} else {
		2606	warn "$ref: cannot resolve object reference\n";
		2607	undef
		2608	}
		2609	}
		2610
1664	package cf;	2611	package cf;
1665		2612
1666	=back	2613	=back
1667		2614
1668	=head3 cf::object::player	2615	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2621	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2622	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2623	dialogue with the given NPC character.
1677		2624
1678	=cut	2625	=cut
		2626
		2627	our $SAY_CHANNEL = {
		2628	id => "say",
		2629	title => "Map",
		2630	reply => "say ",
		2631	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2632	};
		2633
		2634	our $CHAT_CHANNEL = {
		2635	id => "chat",
		2636	title => "Chat",
		2637	reply => "chat ",
		2638	tooltip => "Player chat and shouts, global to the server.",
		2639	};
1679		2640
1680	# rough implementation of a future "reply" method that works	2641	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2642	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2643	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2644	sub cf::object::player::reply($$$;$) {
…		…
1685		2646
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2647	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2648
1688	if ($self->{record_replies}) {	2649	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2650	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2651
1690	} else {	2652	} else {
		2653	my $pl = $self->contr;
		2654
		2655	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2656	my $dialog = $pl->{npc_dialog};
		2657	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2658
		2659	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2660	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2661	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2662	}
1693	}	2663	}
		2664	}
		2665
		2666	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2667
		2668	=cut
		2669
		2670	sub cf::object::send_msg {
		2671	my $pl = shift->contr
		2672	or return;
		2673	$pl->send_msg (@_);
1694	}	2674	}
1695		2675
1696	=item $player_object->may ("access")	2676	=item $player_object->may ("access")
1697		2677
1698	Returns wether the given player is authorized to access resource "access"	2678	Returns wether the given player is authorized to access resource "access"
…		…
1711		2691
1712	=item $player_object->enter_link	2692	=item $player_object->enter_link
1713		2693
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2694	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2695
1716	The player should be reaosnably safe there for short amounts of time. You	2696	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2697	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2698	though, as the player cannot control the character while it is on the link
		2699	map.
		2700
		2701	Will never block.
1718		2702
1719	=item $player_object->leave_link ($map, $x, $y)	2703	=item $player_object->leave_link ($map, $x, $y)
1720		2704
1721	Moves the player out of the specila link map onto the given map. If the	2705	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2706	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2707	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2708	fails, to the emergency map position.
1725		2709
1726	Might block.	2710	Might block.
1727		2711
1728	=cut	2712	=cut
		2713
		2714	sub link_map {
		2715	unless ($LINK_MAP) {
		2716	$LINK_MAP = cf::map::find "{link}"
		2717	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2718	$LINK_MAP->load;
		2719	}
		2720
		2721	$LINK_MAP
		2722	}
1729		2723
1730	sub cf::object::player::enter_link {	2724	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2725	my ($self) = @_;
1732		2726
1733	$self->deactivate_recursive;	2727	$self->deactivate_recursive;
1734		2728
1735	return if $self->map == $LINK_MAP;	2729	++$self->{_link_recursion};
		2730
		2731	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2732
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2733	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2734	if $self->map && $self->map->{path} ne "{link}";
1739		2735
1740	$self->enter_map ($LINK_MAP, 20, 20);	2736	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2737	}
1742		2738
1743	sub cf::object::player::leave_link {	2739	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2740	my ($self, $map, $x, $y) = @_;
		2741
		2742	return unless $self->contr->active;
1745		2743
1746	my $link_pos = delete $self->{_link_pos};	2744	my $link_pos = delete $self->{_link_pos};
1747		2745
1748	unless ($map) {	2746	unless ($map) {
1749	# restore original map position	2747	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2758	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2759	unless (defined $x) && (defined $y);
1762		2760
1763	# use -1 or undef as default coordinates, not 0, 0	2761	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2762	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2763	if $x <= 0 && $y <= 0;
1766		2764
1767	$map->load;	2765	$map->load;
1768	$map->load_diag;	2766	$map->load_neighbours;
1769		2767
1770	return unless $self->contr->active;	2768	return unless $self->contr->active;
		2769
		2770	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2771	if ($self->enter_map ($map, $x, $y)) {
		2772	# entering was successful
		2773	delete $self->{_link_recursion};
		2774	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2775	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2776	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2777
1789	# try to abort aborted map switching on player login :)	2778	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2779
1807	=item $player_object->goto ($path, $x, $y)	2780	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2781
		2782	Moves the player to the given map-path and coordinates by first freezing
		2783	her, loading and preparing them map, calling the provided $check callback
		2784	that has to return the map if sucecssful, and then unfreezes the player on
		2785	the new (success) or old (failed) map position. In either case, $done will
		2786	be called at the end of this process.
		2787
		2788	Note that $check will be called with a potentially non-loaded map, so if
		2789	it needs a loaded map it has to call C<< ->load >>.
		2790
1809	=cut	2791	=cut
		2792
		2793	our $GOTOGEN;
1810		2794
1811	sub cf::object::player::goto {	2795	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2796	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2797
1814	$path = new cf::path $path;	2798	if ($self->{_link_recursion} >= $MAX_LINKS) {
1815	$path ne "/" or Carp::cluck ("oy");#d#	2799	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2800	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2801	($path, $x, $y) = @$EMERGENCY_POSITION;
		2802	}
		2803
		2804	# do generation counting so two concurrent goto's will be executed in-order
		2805	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2806
1817	$self->enter_link;	2807	$self->enter_link;
1818		2808
1819	(async {	2809	(async {
1820	my $map = cf::map::find $path->as_string;	2810	$Coro::current->{desc} = "player::goto $path $x $y";
		2811
		2812	# *tag paths override both path and x|y
		2813	if ($path =~ /^\*(.*)$/) {
		2814	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2815	my $ob = $obs[rand @obs];
		2816
		2817	# see if we actually can go there
		2818	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2819	$ob = $obs[rand @obs];
		2820	} else {
		2821	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
		2823	# else put us there anyways for now #d#
		2824
		2825	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2826	} else {
		2827	($path, $x, $y) = (undef, undef, undef);
		2828	}
		2829	}
		2830
		2831	my $map = eval {
		2832	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2833
		2834	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2835	$map = $map->customise_for ($self);
1822		2836	$map = $check->($map, $x, $y, $self) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2837	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2838	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2839	}
1827		2840
		2841	$map
		2842	};
		2843
		2844	if ($@) {
		2845	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2846	LOG llevError | logBacktrace, Carp::longmess $@;
		2847	}
		2848
		2849	if ($gen == $self->{_goto_generation}) {
		2850	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2851	$self->leave_link ($map, $x, $y);
		2852	}
		2853
		2854	$done->($self) if $done;
1829	})->prio (1);	2855	})->prio (1);
1830	}	2856	}
1831		2857
1832	=item $player_object->enter_exit ($exit_object)	2858	=item $player_object->enter_exit ($exit_object)
1833		2859
…		…
1835		2861
1836	sub parse_random_map_params {	2862	sub parse_random_map_params {
1837	my ($spec) = @_;	2863	my ($spec) = @_;
1838		2864
1839	my $rmp = { # defaults	2865	my $rmp = { # defaults
1840	xsize => 10,	2866	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2867	ysize => (cf::rndm 15, 40),
		2868	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2869	#layout => string,
1842	};	2870	};
1843		2871
1844	for (split /\n/, $spec) {	2872	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2873	my ($k, $v) = split /\s+/, $_, 2;
1846		2874
…		…
1858	# that depends on the exit object	2886	# that depends on the exit object
1859		2887
1860	my $rmp = parse_random_map_params $exit->msg;	2888	my $rmp = parse_random_map_params $exit->msg;
1861		2889
1862	if ($exit->map) {	2890	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2891	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2892	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2893	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2894	$rmp->{origin_y} = $exit->y;
		2895
		2896	$exit->map->touch;
1867	}	2897	}
1868		2898
1869	$rmp->{random_seed} ||= $exit->random_seed;	2899	$rmp->{random_seed} ||= $exit->random_seed;
1870		2900
1871	my $data = cf::to_json $rmp;	2901	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1872	my $md5 = Digest::MD5::md5_hex $data;	2902	my $md5 = Digest::MD5::md5_hex $data;
		2903	my $meta = "$RANDOMDIR/$md5.meta";
1873		2904
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2905	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2906	aio_write $fh, 0, (length $data), $data, 0;
		2907	undef $fh;
		2908	aio_rename "$meta~", $meta;
1876		2909
		2910	my $slaying = "?random/$md5";
		2911
		2912	if ($exit->valid) {
1877	$exit->slaying ("?random/$md5");	2913	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2914	$exit->msg (undef);
		2915	}
1879	}	2916	}
1880	}	2917	}
1881		2918
1882	sub cf::object::player::enter_exit {	2919	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2920	my ($self, $exit) = @_;
…		…
1885	return unless $self->type == cf::PLAYER;	2922	return unless $self->type == cf::PLAYER;
1886		2923
1887	$self->enter_link;	2924	$self->enter_link;
1888		2925
1889	(async {	2926	(async {
1890	$self->deactivate_recursive; # just to be sure	2927	$Coro::current->{desc} = "enter_exit";
		2928
1891	unless (eval {	2929	unless (eval {
		2930	$self->deactivate_recursive; # just to be sure
		2931
		2932	# random map handling
		2933	{
		2934	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2935
1892	prepare_random_map $exit	2936	prepare_random_map $exit
1893	if $exit->slaying eq "/!";	2937	if $exit->slaying eq "/!";
		2938	}
1894		2939
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2940	my $map = cf::map::normalise $exit->slaying, $exit->map;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2941	my $x = $exit->stats->hp;
		2942	my $y = $exit->stats->sp;
1897		2943
		2944	$self->goto ($map, $x, $y);
		2945
		2946	# if exit is damned, update players death & WoR home-position
		2947	$self->contr->savebed ($map, $x, $y)
		2948	if $exit->flag (cf::FLAG_DAMNED);
		2949
1898	1;	2950	1
1899	}) {	2951	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2952	$self->message ("Something went wrong deep within the deliantra server. "
1901	. "I'll try to bring you back to the map you were before. "	2953	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2954	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2955	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2956
1905	warn "ERROR in enter_exit: $@";	2957	error "ERROR in enter_exit: $@";
1906	$self->leave_link;	2958	$self->leave_link;
1907	}	2959	}
1908	})->prio (1);	2960	})->prio (1);
1909	}	2961	}
1910		2962
…		…
1921		2973
1922	sub cf::client::send_drawinfo {	2974	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2975	my ($self, $text, $flags) = @_;
1924		2976
1925	utf8::encode $text;	2977	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2978	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2979	}
1928		2980
		2981	=item $client->send_big_packet ($pkt)
		2982
		2983	Like C<send_packet>, but tries to compress large packets, and fragments
		2984	them as required.
		2985
		2986	=cut
		2987
		2988	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2989
		2990	sub cf::client::send_big_packet {
		2991	my ($self, $pkt) = @_;
		2992
		2993	# try lzf for large packets
		2994	$pkt = "lzf " . Compress::LZF::compress $pkt
		2995	if 1024 <= length $pkt and $self->{can_lzf};
		2996
		2997	# split very large packets
		2998	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2999	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3000	$pkt = "frag";
		3001	}
		3002
		3003	$self->send_packet ($pkt);
		3004	}
		3005
		3006	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3007
		3008	Send a drawinfo or msg packet to the client, formatting the msg for the
		3009	client if neccessary. C<$type> should be a string identifying the type of
		3010	the message, with C<log> being the default. If C<$color> is negative, suppress
		3011	the message unless the client supports the msg packet.
		3012
		3013	=cut
		3014
		3015	# non-persistent channels (usually the info channel)
		3016	our %CHANNEL = (
		3017	"c/motd" => {
		3018	id => "infobox",
		3019	title => "MOTD",
		3020	reply => undef,
		3021	tooltip => "The message of the day",
		3022	},
		3023	"c/identify" => {
		3024	id => "infobox",
		3025	title => "Identify",
		3026	reply => undef,
		3027	tooltip => "Items recently identified",
		3028	},
		3029	"c/examine" => {
		3030	id => "infobox",
		3031	title => "Examine",
		3032	reply => undef,
		3033	tooltip => "Signs and other items you examined",
		3034	},
		3035	"c/shopinfo" => {
		3036	id => "infobox",
		3037	title => "Shop Info",
		3038	reply => undef,
		3039	tooltip => "What your bargaining skill tells you about the shop",
		3040	},
		3041	"c/book" => {
		3042	id => "infobox",
		3043	title => "Book",
		3044	reply => undef,
		3045	tooltip => "The contents of a note or book",
		3046	},
		3047	"c/lookat" => {
		3048	id => "infobox",
		3049	title => "Look",
		3050	reply => undef,
		3051	tooltip => "What you saw there",
		3052	},
		3053	"c/who" => {
		3054	id => "infobox",
		3055	title => "Players",
		3056	reply => undef,
		3057	tooltip => "Shows players who are currently online",
		3058	},
		3059	"c/body" => {
		3060	id => "infobox",
		3061	title => "Body Parts",
		3062	reply => undef,
		3063	tooltip => "Shows which body parts you posess and are available",
		3064	},
		3065	"c/statistics" => {
		3066	id => "infobox",
		3067	title => "Statistics",
		3068	reply => undef,
		3069	tooltip => "Shows your primary statistics",
		3070	},
		3071	"c/skills" => {
		3072	id => "infobox",
		3073	title => "Skills",
		3074	reply => undef,
		3075	tooltip => "Shows your experience per skill and item power",
		3076	},
		3077	"c/shopitems" => {
		3078	id => "infobox",
		3079	title => "Shop Items",
		3080	reply => undef,
		3081	tooltip => "Shows the items currently for sale in this shop",
		3082	},
		3083	"c/resistances" => {
		3084	id => "infobox",
		3085	title => "Resistances",
		3086	reply => undef,
		3087	tooltip => "Shows your resistances",
		3088	},
		3089	"c/pets" => {
		3090	id => "infobox",
		3091	title => "Pets",
		3092	reply => undef,
		3093	tooltip => "Shows information abotu your pets/a specific pet",
		3094	},
		3095	"c/perceiveself" => {
		3096	id => "infobox",
		3097	title => "Perceive Self",
		3098	reply => undef,
		3099	tooltip => "You gained detailed knowledge about yourself",
		3100	},
		3101	"c/uptime" => {
		3102	id => "infobox",
		3103	title => "Uptime",
		3104	reply => undef,
		3105	tooltip => "How long the server has been running since last restart",
		3106	},
		3107	"c/mapinfo" => {
		3108	id => "infobox",
		3109	title => "Map Info",
		3110	reply => undef,
		3111	tooltip => "Information related to the maps",
		3112	},
		3113	"c/party" => {
		3114	id => "party",
		3115	title => "Party",
		3116	reply => "gsay ",
		3117	tooltip => "Messages and chat related to your party",
		3118	},
		3119	"c/death" => {
		3120	id => "death",
		3121	title => "Death",
		3122	reply => undef,
		3123	tooltip => "Reason for and more info about your most recent death",
		3124	},
		3125	"c/say" => $SAY_CHANNEL,
		3126	"c/chat" => $CHAT_CHANNEL,
		3127	);
		3128
		3129	sub cf::client::send_msg {
		3130	my ($self, $channel, $msg, $color, @extra) = @_;
		3131
		3132	$msg = $self->pl->expand_cfpod ($msg)
		3133	unless $color & cf::NDI_VERBATIM;
		3134
		3135	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3136
		3137	# check predefined channels, for the benefit of C
		3138	if ($CHANNEL{$channel}) {
		3139	$channel = $CHANNEL{$channel};
		3140
		3141	$self->ext_msg (channel_info => $channel);
		3142	$channel = $channel->{id};
		3143
		3144	} elsif (ref $channel) {
		3145	# send meta info to client, if not yet sent
		3146	unless (exists $self->{channel}{$channel->{id}}) {
		3147	$self->{channel}{$channel->{id}} = $channel;
		3148	$self->ext_msg (channel_info => $channel);
		3149	}
		3150
		3151	$channel = $channel->{id};
		3152	}
		3153
		3154	return unless @extra || length $msg;
		3155
		3156	# default colour, mask it out
		3157	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3158	if $color & cf::NDI_DEF;
		3159
		3160	my $pkt = "msg "
		3161	. $self->{json_coder}->encode (
		3162	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3163	);
		3164
		3165	$self->send_big_packet ($pkt);
		3166	}
		3167
		3168	=item $client->ext_msg ($type, @msg)
		3169
		3170	Sends an ext event to the client.
		3171
		3172	=cut
		3173
		3174	sub cf::client::ext_msg($$@) {
		3175	my ($self, $type, @msg) = @_;
		3176
		3177	if ($self->extcmd == 2) {
		3178	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3179	} elsif ($self->extcmd == 1) { # TODO: remove
		3180	push @msg, msgtype => "event_$type";
		3181	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3182	}
		3183	}
		3184
		3185	=item $client->ext_reply ($msgid, @msg)
		3186
		3187	Sends an ext reply to the client.
		3188
		3189	=cut
		3190
		3191	sub cf::client::ext_reply($$@) {
		3192	my ($self, $id, @msg) = @_;
		3193
		3194	if ($self->extcmd == 2) {
		3195	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3196	} elsif ($self->extcmd == 1) {
		3197	#TODO: version 1, remove
		3198	unshift @msg, msgtype => "reply", msgid => $id;
		3199	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3200	}
		3201	}
1929		3202
1930	=item $success = $client->query ($flags, "text", \&cb)	3203	=item $success = $client->query ($flags, "text", \&cb)
1931		3204
1932	Queues a query to the client, calling the given callback with	3205	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3206	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3207	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		3208
1936	Queries can fail, so check the return code. Or don't, as queries will become	3209	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	3210	become reliable at some point in the future.
1938		3211
1939	=cut	3212	=cut
1940		3213
1941	sub cf::client::query {	3214	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	3215	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	3223	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3224	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		3225
1953	$self->send_packet ($self->{query_queue}[0][0])	3226	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	3227	if @{ $self->{query_queue} } == 1;
		3228
		3229	1
1955	}	3230	}
1956		3231
1957	cf::client->attach (	3232	cf::client->attach (
		3233	on_connect => sub {
		3234	my ($ns) = @_;
		3235
		3236	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3237	},
1958	on_reply => sub {	3238	on_reply => sub {
1959	my ($ns, $msg) = @_;	3239	my ($ns, $msg) = @_;
1960		3240
1961	# this weird shuffling is so that direct followup queries	3241	# this weird shuffling is so that direct followup queries
1962	# get handled first	3242	# get handled first
1963	my $queue = delete $ns->{query_queue}	3243	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	3244	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		3245
1966	(shift @$queue)->[1]->($msg);	3246	(shift @$queue)->[1]->($msg);
		3247	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		3248
1968	push @{ $ns->{query_queue} }, @$queue;	3249	push @{ $ns->{query_queue} }, @$queue;
1969		3250
1970	if (@{ $ns->{query_queue} } == @$queue) {	3251	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	3252	if (@$queue) {
…		…
1973	} else {	3254	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3255	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	3256	}
1976	}	3257	}
1977	},	3258	},
		3259	on_exticmd => sub {
		3260	my ($ns, $buf) = @_;
		3261
		3262	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3263
		3264	if (ref $msg) {
		3265	my ($type, $reply, @payload) =
		3266	"ARRAY" eq ref $msg
		3267	? @$msg
		3268	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3269
		3270	my @reply;
		3271
		3272	if (my $cb = $EXTICMD{$type}) {
		3273	@reply = $cb->($ns, @payload);
		3274	}
		3275
		3276	$ns->ext_reply ($reply, @reply)
		3277	if $reply;
		3278
		3279	} else {
		3280	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3281	}
		3282
		3283	cf::override;
		3284	},
1978	);	3285	);
1979		3286
1980	=item $client->async (\&cb)	3287	=item $client->async (\&cb)
1981		3288
1982	Create a new coroutine, running the specified callback. The coroutine will	3289	Create a new coroutine, running the specified callback. The coroutine will
…		…
1998		3305
1999	$coro	3306	$coro
2000	}	3307	}
2001		3308
2002	cf::client->attach (	3309	cf::client->attach (
2003	on_destroy => sub {	3310	on_client_destroy => sub {
2004	my ($ns) = @_;	3311	my ($ns) = @_;
2005		3312
2006	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3313	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2007	},	3314	},
2008	);	3315	);
…		…
2023	our $safe = new Safe "safe";	3330	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	3331	our $safe_hole = new Safe::Hole;
2025		3332
2026	$SIG{FPE} = 'IGNORE';	3333	$SIG{FPE} = 'IGNORE';
2027		3334
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3335	$safe->permit_only (Opcode::opset qw(
		3336	:base_core :base_mem :base_orig :base_math :base_loop
		3337	grepstart grepwhile mapstart mapwhile
		3338	sort time
		3339	));
2029		3340
2030	# here we export the classes and methods available to script code	3341	# here we export the classes and methods available to script code
2031		3342
2032	=pod	3343	=pod
2033		3344
2034	The following fucntions and emthods are available within a safe environment:	3345	The following functions and methods are available within a safe environment:
2035		3346
2036	cf::object contr pay_amount pay_player map	3347	cf::object
		3348	contr pay_amount pay_player map x y force_find force_add destroy
		3349	insert remove name archname title slaying race decrease split
		3350	value
		3351
2037	cf::object::player player	3352	cf::object::player
2038	cf::player peaceful	3353	player
2039	cf::map trigger	3354
		3355	cf::player
		3356	peaceful
		3357
		3358	cf::map
		3359	trigger
2040		3360
2041	=cut	3361	=cut
2042		3362
2043	for (	3363	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	3364	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3365	insert remove inv nrof name archname title slaying race
		3366	decrease split destroy change_exp value msg lore send_msg)],
2045	["cf::object::player" => qw(player)],	3367	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	3368	["cf::player" => qw(peaceful send_msg)],
2047	["cf::map" => qw(trigger)],	3369	["cf::map" => qw(trigger)],
2048	) {	3370	) {
2049	no strict 'refs';
2050	my ($pkg, @funs) = @$_;	3371	my ($pkg, @funs) = @$_;
2051	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3372	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2052	for @funs;	3373	for @funs;
2053	}	3374	}
2054		3375
…		…
2069		3390
2070	my $qcode = $code;	3391	my $qcode = $code;
2071	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3392	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2072	$qcode =~ s/\n/\\n/g;	3393	$qcode =~ s/\n/\\n/g;
2073		3394
		3395	%vars = (_dummy => 0) unless %vars;
		3396
		3397	my @res;
2074	local $_;	3398	local $_;
2075	local @safe::cf::_safe_eval_args = values %vars;
2076		3399
2077	my $eval =	3400	my $eval =
2078	"do {\n"	3401	"do {\n"
2079	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3402	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2080	. "#line 0 \"{$qcode}\"\n"	3403	. "#line 0 \"{$qcode}\"\n"
2081	. $code	3404	. $code
2082	. "\n}"	3405	. "\n}"
2083	;	3406	;
2084		3407
		3408	if ($CFG{safe_eval}) {
2085	sub_generation_inc;	3409	sub_generation_inc;
		3410	local @safe::cf::_safe_eval_args = values %vars;
2086	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3411	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2087	sub_generation_inc;	3412	sub_generation_inc;
		3413	} else {
		3414	local @cf::_safe_eval_args = values %vars;
		3415	@res = wantarray ? eval eval : scalar eval $eval;
		3416	}
2088		3417
2089	if ($@) {	3418	if ($@) {
2090	warn "$@";	3419	warn "$@",
2091	warn "while executing safe code '$code'\n";	3420	"while executing safe code '$code'\n",
2092	warn "with arguments " . (join " ", %vars) . "\n";	3421	"with arguments " . (join " ", %vars) . "\n";
2093	}	3422	}
2094		3423
2095	wantarray ? @res : $res[0]	3424	wantarray ? @res : $res[0]
2096	}	3425	}
2097		3426
…		…
2111	=cut	3440	=cut
2112		3441
2113	sub register_script_function {	3442	sub register_script_function {
2114	my ($fun, $cb) = @_;	3443	my ($fun, $cb) = @_;
2115		3444
2116	no strict 'refs';	3445	$fun = "safe::$fun" if $CFG{safe_eval};
2117	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3446	*$fun = $safe_hole->wrap ($cb);
2118	}	3447	}
2119		3448
2120	=back	3449	=back
2121		3450
2122	=cut	3451	=cut
2123		3452
2124	#############################################################################	3453	#############################################################################
		3454	# the server's init and main functions
2125		3455
2126	=head2 EXTENSION DATABASE SUPPORT	3456	sub load_facedata($) {
		3457	my ($path) = @_;
2127		3458
2128	Crossfire maintains a very simple database for extension use. It can	3459	# HACK to clear player env face cache, we need some signal framework
2129	currently store anything that can be serialised using Storable, which	3460	# for this (global event?)
2130	excludes objects.	3461	%ext::player_env::MUSIC_FACE_CACHE = ();
2131		3462
2132	The parameter C<$family> should best start with the name of the extension	3463	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2133	using it, it should be unique.
2134		3464
2135	=over 4	3465	trace "loading facedata from $path\n";
2136		3466
2137	=item $hashref = cf::db_get $family	3467	my $facedata = decode_storable load_file $path;
2138		3468
2139	Return a hashref for use by the extension C<$family>, which can be	3469	$facedata->{version} == 2
2140	modified. After modifications, you have to call C<cf::db_dirty> or	3470	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141	C<cf::db_sync>.
2142		3471
2143	=item $value = cf::db_get $family => $key	3472	# patch in the exptable
2144		3473	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2145	Returns a single value from the database	3474	$facedata->{resource}{"res/exp_table"} = {
2146		3475	type => FT_RSRC,
2147	=item cf::db_put $family => $hashref	3476	data => $exp_table,
2148		3477	hash => (Digest::MD5::md5 $exp_table),
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}
2175
2176	my $pid;
2177
2178	sub db_save() {
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	3478	};
		3479	cf::cede_to_tick;
2198		3480
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}	3481	{
		3482	my $faces = $facedata->{faceinfo};
2203		3483
2204	sub db_get($;$) {	3484	while (my ($face, $info) = each %$faces) {
2205	@_ >= 2	3485	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209		3486
2210	sub db_put($$;$) {	3487	cf::face::set_visibility $idx, $info->{visibility};
2211	if (@_ >= 3) {	3488	cf::face::set_magicmap $idx, $info->{magicmap};
2212	$DB->{$_[0]}{$_[1]} = $_[2];	3489	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2213	} else {	3490	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2214	$DB->{$_[0]} = $_[1];	3491	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2215	}
2216	db_dirty;
2217	}
2218		3492
2219	cf::global->attach (	3493	cf::cede_to_tick;
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3494	}
2224	);
2225	}
2226		3495
2227	#############################################################################	3496	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	3497	next unless $info->{smooth};
2229		3498
2230	sub cfg_load {	3499	my $idx = cf::face::find $face
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3500	or next;
2232	or return;
2233		3501
2234	local $/;	3502	if (my $smooth = cf::face::find $info->{smooth}) {
2235	*CFG = YAML::Syck::Load <$fh>;	3503	cf::face::set_smooth $idx, $smooth;
		3504	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3505	} else {
		3506	error "smooth face '$info->{smooth}' not found for face '$face'";
		3507	}
2236		3508
		3509	cf::cede_to_tick;
		3510	}
		3511	}
		3512
		3513	{
		3514	my $anims = $facedata->{animinfo};
		3515
		3516	while (my ($anim, $info) = each %$anims) {
		3517	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3518	cf::cede_to_tick;
		3519	}
		3520
		3521	cf::anim::invalidate_all; # d'oh
		3522	}
		3523
		3524	{
		3525	my $res = $facedata->{resource};
		3526
		3527	while (my ($name, $info) = each %$res) {
		3528	if (defined $info->{type}) {
		3529	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3530
		3531	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3532	cf::face::set_type $idx, $info->{type};
		3533	} else {
		3534	$RESOURCE{$name} = $info; # unused
		3535	}
		3536
		3537	cf::cede_to_tick;
		3538	}
		3539	}
		3540
		3541	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3542
		3543	1
		3544	}
		3545
		3546	register_exticmd fx_want => sub {
		3547	my ($ns, $want) = @_;
		3548
		3549	while (my ($k, $v) = each %$want) {
		3550	$ns->fx_want ($k, $v);
		3551	}
		3552	};
		3553
		3554	sub load_resource_file($) {
		3555	my $guard = lock_acquire "load_resource_file";
		3556
		3557	my $status = load_resource_file_ $_[0];
		3558	get_slot 0.1, 100;
		3559	cf::arch::commit_load;
		3560
		3561	$status
		3562	}
		3563
		3564	sub reload_regions {
		3565	# HACK to clear player env face cache, we need some signal framework
		3566	# for this (global event?)
		3567	%ext::player_env::MUSIC_FACE_CACHE = ();
		3568
		3569	load_resource_file "$MAPDIR/regions"
		3570	or die "unable to load regions file\n";
		3571
		3572	for (cf::region::list) {
		3573	$_->{match} = qr/$_->{match}/
		3574	if exists $_->{match};
		3575	}
		3576	}
		3577
		3578	sub reload_facedata {
		3579	load_facedata "$DATADIR/facedata"
		3580	or die "unable to load facedata\n";
		3581	}
		3582
		3583	sub reload_archetypes {
		3584	load_resource_file "$DATADIR/archetypes"
		3585	or die "unable to load archetypes\n";
		3586	}
		3587
		3588	sub reload_treasures {
		3589	load_resource_file "$DATADIR/treasures"
		3590	or die "unable to load treasurelists\n";
		3591	}
		3592
		3593	sub reload_sound {
		3594	trace "loading sound config from $DATADIR/sound\n";
		3595
		3596	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3597
		3598	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3599	my $sound = $soundconf->{compat}[$_]
		3600	or next;
		3601
		3602	my $face = cf::face::find "sound/$sound->[1]";
		3603	cf::sound::set $sound->[0] => $face;
		3604	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3605	}
		3606
		3607	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3608	my $face = cf::face::find "sound/$v";
		3609	cf::sound::set $k => $face;
		3610	}
		3611	}
		3612
		3613	sub reload_resources {
		3614	trace "reloading resource files...\n";
		3615
		3616	reload_exp_table;
		3617	reload_materials;
		3618	reload_facedata;
		3619	reload_sound;
		3620	reload_archetypes;
		3621	reload_regions;
		3622	reload_treasures;
		3623
		3624	trace "finished reloading resource files\n";
		3625	}
		3626
		3627	sub reload_config {
		3628	trace "reloading config file...\n";
		3629
		3630	my $config = load_file "$CONFDIR/config";
		3631	utf8::decode $config;
		3632	*CFG = decode_yaml $config;
		3633
2237	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3634	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2238		3635
2239	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3636	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2240	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3637	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2241		3638
2242	if (exists $CFG{mlockall}) {	3639	if (exists $CFG{mlockall}) {
…		…
2246	};	3643	};
2247	warn $@ if $@;	3644	warn $@ if $@;
2248	}	3645	}
2249	}	3646	}
2250		3647
		3648	sub pidfile() {
		3649	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3650	or die "$PIDFILE: $!";
		3651	flock $fh, &Fcntl::LOCK_EX
		3652	or die "$PIDFILE: flock: $!";
		3653	$fh
		3654	}
		3655
		3656	# make sure only one server instance is running at any one time
		3657	sub atomic {
		3658	my $fh = pidfile;
		3659
		3660	my $pid = <$fh>;
		3661	kill 9, $pid if $pid > 0;
		3662
		3663	seek $fh, 0, 0;
		3664	print $fh $$;
		3665	}
		3666
		3667	sub main_loop {
		3668	trace "EV::loop starting\n";
		3669	if (1) {
		3670	EV::loop;
		3671	}
		3672	trace "EV::loop returned\n";
		3673	goto &main_loop unless $REALLY_UNLOOP;
		3674	}
		3675
2251	sub main {	3676	sub main {
		3677	cf::init_globals; # initialise logging
		3678
		3679	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3680	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3681	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3682	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3683
		3684	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3685
2252	# we must not ever block the main coroutine	3686	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3687	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3688	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2255	async { Event::one_event };	3689	(async {
		3690	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3691	EV::loop EV::LOOP_ONESHOT;
		3692	})->prio (Coro::PRIO_MAX);
2256	};	3693	};
2257		3694
2258	cfg_load;	3695	evthread_start IO::AIO::poll_fileno;
2259	db_load;	3696
		3697	cf::sync_job {
		3698	cf::incloader::init ();
		3699
		3700	cf::init_anim;
		3701	cf::init_attackmess;
		3702	cf::init_dynamic;
		3703
		3704	cf::load_settings;
		3705
		3706	reload_resources;
		3707	reload_config;
		3708	db_init;
		3709
		3710	cf::init_uuid;
		3711	cf::init_signals;
		3712	cf::init_skills;
		3713
		3714	cf::init_beforeplay;
		3715
		3716	atomic;
		3717
2260	load_extensions;	3718	load_extensions;
2261	Event::loop;	3719
		3720	utime time, time, $RUNTIMEFILE;
		3721
		3722	# no (long-running) fork's whatsoever before this point(!)
		3723	use POSIX ();
		3724	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3725
		3726	cf::_post_init 0;
		3727	};
		3728
		3729	cf::object::thawer::errors_are_fatal 0;
		3730	info "parse errors in files are no longer fatal from this point on.\n";
		3731
		3732	my $free_main; $free_main = EV::idle sub {
		3733	undef $free_main;
		3734	undef &main; # free gobs of memory :)
		3735	};
		3736
		3737	goto &main_loop;
2262	}	3738	}
2263		3739
2264	#############################################################################	3740	#############################################################################
2265	# initialisation and cleanup	3741	# initialisation and cleanup
2266		3742
2267	# install some emergency cleanup handlers	3743	# install some emergency cleanup handlers
2268	BEGIN {	3744	BEGIN {
		3745	our %SIGWATCHER = ();
2269	for my $signal (qw(INT HUP TERM)) {	3746	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3747	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2271	data => WF_AUTOCANCEL,
2272	signal => $signal,
2273	cb => sub {
2274	cf::cleanup "SIG$signal";	3748	cf::cleanup "SIG$signal";
2275	},
2276	);	3749	};
		3750	}
		3751	}
		3752
		3753	sub write_runtime_sync {
		3754	my $t0 = AE::time;
		3755
		3756	# first touch the runtime file to show we are still running:
		3757	# the fsync below can take a very very long time.
		3758
		3759	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3760
		3761	my $guard = cf::lock_acquire "write_runtime";
		3762
		3763	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3764	or return;
		3765
		3766	my $value = $cf::RUNTIME + 90 + 10;
		3767	# 10 is the runtime save interval, for a monotonic clock
		3768	# 60 allows for the watchdog to kill the server.
		3769
		3770	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3771	and return;
		3772
		3773	# always fsync - this file is important
		3774	aio_fsync $fh
		3775	and return;
		3776
		3777	# touch it again to show we are up-to-date
		3778	aio_utime $fh, undef, undef;
		3779
		3780	close $fh
		3781	or return;
		3782
		3783	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3784	and return;
		3785
		3786	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3787
2277	}	3788	1
		3789	}
		3790
		3791	our $uuid_lock;
		3792	our $uuid_skip;
		3793
		3794	sub write_uuid_sync($) {
		3795	$uuid_skip ||= $_[0];
		3796
		3797	return if $uuid_lock;
		3798	local $uuid_lock = 1;
		3799
		3800	my $uuid = "$LOCALDIR/uuid";
		3801
		3802	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3803	or return;
		3804
		3805	my $value = uuid_seq uuid_cur;
		3806
		3807	unless ($value) {
		3808	info "cowardly refusing to write zero uuid value!\n";
		3809	return;
		3810	}
		3811
		3812	my $value = uuid_str $value + $uuid_skip;
		3813	$uuid_skip = 0;
		3814
		3815	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3816	and return;
		3817
		3818	# always fsync - this file is important
		3819	aio_fsync $fh
		3820	and return;
		3821
		3822	close $fh
		3823	or return;
		3824
		3825	aio_rename "$uuid~", $uuid
		3826	and return;
		3827
		3828	trace "uuid file written ($value).\n";
		3829
		3830	1
		3831
		3832	}
		3833
		3834	sub write_uuid($$) {
		3835	my ($skip, $sync) = @_;
		3836
		3837	$sync ? write_uuid_sync $skip
		3838	: async { write_uuid_sync $skip };
2278	}	3839	}
2279		3840
2280	sub emergency_save() {	3841	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3842	my $freeze_guard = cf::freeze_mainloop;
2282		3843
2283	warn "enter emergency perl save\n";	3844	info "emergency_perl_save: enter\n";
		3845
		3846	# this is a trade-off: we want to be very quick here, so
		3847	# save all maps without fsync, and later call a global sync
		3848	# (which in turn might be very very slow)
		3849	local $USE_FSYNC = 0;
2284		3850
2285	cf::sync_job {	3851	cf::sync_job {
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
2286	# use a peculiar iteration method to avoid tripping on perl	3854	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3855	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3856	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3857	info "emergency_perl_save: begin player save\n";
2290	for my $login (keys %cf::PLAYER) {	3858	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3859	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3860	$pl->valid or next;
		3861	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	3862	$pl->save;
2294	}	3863	}
2295	warn "end emergency player save\n";	3864	info "emergency_perl_save: end player save\n";
2296		3865
2297	warn "begin emergency map save\n";	3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin map save\n";
2298	for my $path (keys %cf::MAP) {	3869	for my $path (keys %cf::MAP) {
2299	my $map = $cf::MAP{$path} or next;	3870	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3871	$map->valid or next;
2301	$map->save;	3872	$map->save;
2302	}	3873	}
2303	warn "end emergency map save\n";	3874	info "emergency_perl_save: end map save\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	info "emergency_perl_save: begin database checkpoint\n";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880	info "emergency_perl_save: end database checkpoint\n";
		3881
		3882	info "emergency_perl_save: begin write uuid\n";
		3883	write_uuid_sync 1;
		3884	info "emergency_perl_save: end write uuid\n";
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: syncing database to disk";
		3889	BDB::db_env_txn_checkpoint $DB_ENV;
		3890
		3891	info "emergency_perl_save: starting sync\n";
		3892	IO::AIO::aio_sync sub {
		3893	info "emergency_perl_save: finished sync\n";
		3894	};
		3895
		3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	trace "emergency_perl_save: flushing outstanding aio requests";
		3899	while (IO::AIO::nreqs || BDB::nreqs) {
		3900	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3901	}
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
2304	};	3904	};
2305		3905
2306	warn "leave emergency perl save\n";	3906	info "emergency_perl_save: leave\n";
2307	}	3907	}
2308		3908
		3909	sub post_cleanup {
		3910	my ($make_core) = @_;
		3911
		3912	IO::AIO::flush;
		3913
		3914	error Carp::longmess "post_cleanup backtrace"
		3915	if $make_core;
		3916
		3917	my $fh = pidfile;
		3918	unlink $PIDFILE if <$fh> == $$;
		3919	}
		3920
		3921	# a safer delete_package, copied from Symbol
		3922	sub clear_package($) {
		3923	my $pkg = shift;
		3924
		3925	# expand to full symbol table name if needed
		3926	unless ($pkg =~ /^main::.*::$/) {
		3927	$pkg = "main$pkg" if $pkg =~ /^::/;
		3928	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3929	$pkg .= '::' unless $pkg =~ /::$/;
		3930	}
		3931
		3932	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3933	my $stem_symtab = *{$stem}{HASH};
		3934
		3935	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3936	or return;
		3937
		3938	# clear all symbols
		3939	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3940	for my $name (keys %$leaf_symtab) {
		3941	_gv_clear *{"$pkg$name"};
		3942	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3943	}
		3944	}
		3945
2309	sub reload() {	3946	sub do_reload_perl() {
2310	# can/must only be called in main	3947	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3948	unless (in_main) {
2312	warn "can only reload from main coroutine\n";	3949	error "can only reload from main coroutine";
2313	return;	3950	return;
2314	}	3951	}
2315		3952
2316	warn "reloading...";	3953	return if $RELOAD++;
2317		3954
2318	my $guard = freeze_mainloop;	3955	my $t1 = AE::time;
		3956
		3957	while ($RELOAD) {
		3958	cf::get_slot 0.1, -1, "reload_perl";
		3959	info "perl_reload: reloading...";
		3960
		3961	trace "perl_reload: entering sync_job";
		3962
		3963	cf::sync_job {
2319	cf::emergency_save;	3964	#cf::emergency_save;
2320		3965
2321	eval {	3966	trace "perl_reload: cancelling all extension coros";
2322	# if anything goes wrong in here, we should simply crash as we already saved
2323
2324	# cancel all watchers
2325	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}
2328
2329	# cancel all extension coros
2330	$_->cancel for values %EXT_CORO;	3967	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3968	%EXT_CORO = ();
2332		3969
2333	# unload all extensions	3970	trace "perl_reload: removing commands";
2334	for (@exts) {	3971	%COMMAND = ();
2335	warn "unloading <$_>";
2336	unload_extension $_;
2337	}
2338		3972
2339	# unload all modules loaded from $LIBDIR	3973	trace "perl_reload: removing ext/exti commands";
2340	while (my ($k, $v) = each %INC) {	3974	%EXTCMD = ();
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3975	%EXTICMD = ();
2342		3976
2343	warn "removing <$k>";	3977	trace "perl_reload: unloading/nuking all extensions";
2344	delete $INC{$k};	3978	for my $pkg (@EXTS) {
		3979	trace "... unloading $pkg";
2345		3980
2346	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;
2348
2349	if (my $cb = $k->can ("unload_module")) {	3981	if (my $cb = $pkg->can ("unload")) {
		3982	eval {
2350	$cb->();	3983	$cb->($pkg);
		3984	1
		3985	} or error "$pkg unloaded, but with errors: $@";
		3986	}
		3987
		3988	trace "... clearing $pkg";
		3989	clear_package $pkg;
2351	}	3990	}
2352		3991
2353	Symbol::delete_package $k;	3992	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3993	while (my ($k, $v) = each %INC) {
		3994	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3995
		3996	trace "... unloading $k";
		3997	delete $INC{$k};
		3998
		3999	$k =~ s/\.pm$//;
		4000	$k =~ s/\//::/g;
		4001
		4002	if (my $cb = $k->can ("unload_module")) {
		4003	$cb->();
		4004	}
		4005
		4006	clear_package $k;
2354	}	4007	}
2355		4008
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	4009	trace "perl_reload: getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	4010	clear_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4011	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		4012
2364	# remove register_script_function callbacks	4013	trace "perl_reload: unloading cf.pm \"a bit\"";
2365	# TODO
2366
2367	# unload cf.pm "a bit"
2368	delete $INC{"cf.pm"};	4014	delete $INC{"cf.pm"};
		4015	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2369		4016
2370	# don't, removes xs symbols, too,	4017	# don't, removes xs symbols, too,
2371	# and global variables created in xs	4018	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	4019	#clear_package __PACKAGE__;
2373		4020
2374	# reload cf.pm	4021	info "perl_reload: unload completed, starting to reload now";
2375	warn "reloading cf.pm";	4022
		4023	trace "perl_reload: reloading cf.pm";
2376	require cf;	4024	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4025	cf::_connect_to_perl_1;
2378		4026
2379	# load config and database again	4027	trace "perl_reload: loading config and database again";
2380	cf::cfg_load;	4028	cf::reload_config;
2381	cf::db_load;
2382		4029
2383	# load extensions	4030	trace "perl_reload: loading extensions";
2384	warn "load extensions";
2385	cf::load_extensions;	4031	cf::load_extensions;
2386		4032
2387	# reattach attachments to objects	4033	if ($REATTACH_ON_RELOAD) {
2388	warn "reattach";	4034	trace "perl_reload: reattaching attachments to objects/players";
2389	_global_reattach;	4035	_global_reattach; # objects, sockets
		4036	trace "perl_reload: reattaching attachments to maps";
2390	reattach $_ for values %MAP;	4037	reattach $_ for values %MAP;
		4038	trace "perl_reload: reattaching attachments to players";
		4039	reattach $_ for values %PLAYER;
		4040	}
		4041
		4042	cf::_post_init 1;
		4043
		4044	trace "perl_reload: leaving sync_job";
		4045
		4046	1
		4047	} or do {
		4048	error $@;
		4049	cf::cleanup "perl_reload: error, exiting.";
		4050	};
		4051
		4052	--$RELOAD;
		4053	}
		4054
		4055	$t1 = AE::time - $t1;
		4056	info "perl_reload: completed in ${t1}s\n";
		4057	};
		4058
		4059	our $RELOAD_WATCHER; # used only during reload
		4060
		4061	sub reload_perl() {
		4062	# doing reload synchronously and two reloads happen back-to-back,
		4063	# coro crashes during coro_state_free->destroy here.
		4064
		4065	$RELOAD_WATCHER ||= cf::async {
		4066	Coro::AIO::aio_wait cache_extensions;
		4067
		4068	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4069	do_reload_perl;
		4070	undef $RELOAD_WATCHER;
		4071	};
2391	};	4072	};
2392
2393	if ($@) {
2394	warn $@;
2395	warn "error while reloading, exiting.";
2396	exit 1;
2397	}
2398
2399	warn "reloaded successfully";
2400	};
2401
2402	#############################################################################
2403
2404	unless ($LINK_MAP) {
2405	$LINK_MAP = cf::map::new;
2406
2407	$LINK_MAP->width (41);
2408	$LINK_MAP->height (41);
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,
2417	cb => sub {
2418	$_[0]->w->cancel;
2419
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});
2438
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	4073	}
2444
2445	register "<global>", __PACKAGE__;
2446		4074
2447	register_command "reload" => sub {	4075	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	4076	my ($who, $arg) = @_;
2449		4077
2450	if ($who->flag (FLAG_WIZ)) {	4078	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	4079	$who->message ("reloading server.");
		4080	async {
		4081	$Coro::current->{desc} = "perl_reload";
		4082	reload_perl;
		4083	};
2454	}	4084	}
2455	};	4085	};
2456		4086
2457	unshift @INC, $LIBDIR;	4087	#############################################################################
2458		4088
2459	$TICK_WATCHER = Event->timer (	4089	my $bug_warning = 0;
2460	reentrant => 0,	4090
2461	prio => 0,	4091	our @WAIT_FOR_TICK;
2462	at => $NEXT_TICK || $TICK,	4092	our @WAIT_FOR_TICK_BEGIN;
2463	data => WF_AUTOCANCEL,	4093
2464	cb => sub {	4094	sub wait_for_tick() {
		4095	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4096
		4097	my $signal = new Coro::Signal;
		4098	push @WAIT_FOR_TICK, $signal;
		4099	$signal->wait;
		4100	}
		4101
		4102	sub wait_for_tick_begin() {
		4103	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4104
		4105	my $signal = new Coro::Signal;
		4106	push @WAIT_FOR_TICK_BEGIN, $signal;
		4107	$signal->wait;
		4108	}
		4109
		4110	sub tick {
		4111	if ($Coro::current != $Coro::main) {
		4112	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4113	unless ++$bug_warning > 10;
		4114	return;
		4115	}
		4116
2465	cf::server_tick; # one server iteration	4117	cf::server_tick; # one server iteration
2466	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;
2468		4118
2469	$WAIT_FOR_TICK->broadcast;	4119	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2471		4120
2472	# if we are delayed by four ticks or more, skip them all	4121	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4122	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2474		4123	Coro::async_pool {
2475	$TICK_WATCHER->at ($NEXT_TICK);	4124	$Coro::current->{desc} = "runtime saver";
2476	$TICK_WATCHER->start;
2477	},
2478	);
2479
2480	IO::AIO::max_poll_time $TICK * 0.2;
2481
2482	Event->io (
2483	fd => IO::AIO::poll_fileno,
2484	poll => 'r',
2485	prio => 5,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,
2492	after => 0,
2493	interval => 10,
2494	cb => sub {
2495	(Coro::unblock_sub {
2496	write_runtime	4125	write_runtime_sync
2497	or warn "ERROR: unable to write runtime file: $!";	4126	or error "ERROR: unable to write runtime file: $!";
2498	})->();	4127	};
2499	},	4128	}
2500	);	4129
		4130	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4131	$sig->send;
		4132	}
		4133	while (my $sig = shift @WAIT_FOR_TICK) {
		4134	$sig->send;
		4135	}
		4136
		4137	$LOAD = ($NOW - $TICK_START) / $TICK;
		4138	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4139
		4140	if (0) {
		4141	if ($NEXT_TICK) {
		4142	my $jitter = $TICK_START - $NEXT_TICK;
		4143	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4144	debug "jitter $JITTER\n";#d#
		4145	}
		4146	}
		4147	}
		4148
		4149	{
		4150	# configure BDB
		4151
		4152	BDB::min_parallel 16;
		4153	BDB::max_poll_reqs $TICK * 0.1;
		4154	$AnyEvent::BDB::WATCHER->priority (1);
		4155
		4156	unless ($DB_ENV) {
		4157	$DB_ENV = BDB::db_env_create;
		4158	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4159	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4160	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4161	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4162	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4163
		4164	cf::sync_job {
		4165	eval {
		4166	BDB::db_env_open
		4167	$DB_ENV,
		4168	$BDBDIR,
		4169	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4170	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4171	0666;
		4172
		4173	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4174	};
		4175
		4176	cf::cleanup "db_env_open(db): $@" if $@;
		4177	};
		4178	}
		4179
		4180	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4181	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4182	};
		4183	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4184	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4185	};
		4186	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4187	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4188	};
		4189	}
		4190
		4191	{
		4192	# configure IO::AIO
		4193
		4194	IO::AIO::min_parallel 8;
		4195	IO::AIO::max_poll_time $TICK * 0.1;
		4196	undef $AnyEvent::AIO::WATCHER;
		4197	}
		4198
		4199	our $_log_backtrace;
		4200	our $_log_backtrace_last;
		4201
		4202	sub _log_backtrace {
		4203	my ($msg, @addr) = @_;
		4204
		4205	$msg =~ s/\n$//;
		4206
		4207	if ($_log_backtrace_last eq $msg) {
		4208	LOG llevInfo, "[ABT] $msg\n";
		4209	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4210	# limit the # of concurrent backtraces
		4211	} elsif ($_log_backtrace < 2) {
		4212	$_log_backtrace_last = $msg;
		4213	++$_log_backtrace;
		4214	my $perl_bt = Carp::longmess $msg;
		4215	async {
		4216	$Coro::current->{desc} = "abt $msg";
		4217
		4218	my @bt = fork_call {
		4219	@addr = map { sprintf "%x", $_ } @addr;
		4220	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4221	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4222	or die "addr2line: $!";
		4223
		4224	my @funcs;
		4225	my @res = <$fh>;
		4226	chomp for @res;
		4227	while (@res) {
		4228	my ($func, $line) = splice @res, 0, 2, ();
		4229	push @funcs, "[$func] $line";
		4230	}
		4231
		4232	@funcs
		4233	};
		4234
		4235	LOG llevInfo, "[ABT] $perl_bt\n";
		4236	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4237	LOG llevInfo, "[ABT] $_\n" for @bt;
		4238	--$_log_backtrace;
		4239	};
		4240	} else {
		4241	LOG llevInfo, "[ABT] $msg\n";
		4242	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4243	}
		4244	}
		4245
		4246	# load additional modules
		4247	require "cf/$_.pm" for @EXTRA_MODULES;
		4248	cf::_connect_to_perl_2;
2501		4249
2502	END { cf::emergency_save }	4250	END { cf::emergency_save }
2503		4251
2504	1	4252	1
2505		4253

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