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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 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
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	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" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	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
44	our $NEXT_TICK;	123	our $NEXT_TICK;
45	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);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %MAP; # all maps	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		170
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	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::"} };
78		189
79	#############################################################################	190	#############################################################################
80		191
81	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
82		193
…		…
89	=item $cf::RUNTIME	200	=item $cf::RUNTIME
90		201
91	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
92	every server tick.	203	every server tick.
93		204
94	=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
95		208
96	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		213
99	=item $cf::NOW	214	=item $cf::NOW
100		215
101	The time of the last (current) server tick.	216	The time of the last (current) server tick.
102		217
103	=item $cf::TICK	218	=item $cf::TICK
104		219
105	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
106		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
107	=item %cf::CFG	232	=item %cf::CFG
108		233
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	235	from wherever your confdir points to.
111		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		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.
		259
112	=back	260	=back
113		261
114	=cut	262	=cut
115		263
116	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
117	*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 {
118	my $msg = join "", @_;	271	my $msg = join "", @_;
119	utf8::encode $msg;
120		272
121	$msg .= "\n"	273	$msg .= "\n"
122	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
123		275
124	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	277
126	}	278	LOG llevWarn, $msg;
		279	};
		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	};
127		294
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		302
135	# 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
136	# within the Safe compartment.	304	# within the Safe compartment.
137	for my $pkg (qw(	305	for my $pkg (qw(
138	cf::global cf::attachable	306	cf::global cf::attachable
139	cf::object cf::object::player	307	cf::object cf::object::player
140	cf::client cf::player	308	cf::client cf::player
141	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
142	cf::map cf::party cf::region	311	cf::party cf::region
143	)) {	312	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	314	}
147		315
148	$Event::DIED = sub {	316	$EV::DIED = sub {
149	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
150	};	318	};
151		319
152	my %ext_pkg;	320	#############################################################################
153	my @exts;	321
154	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
155		326
156	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
157		328
158	=over 4	329	=over 4
159		330
160	=cut	331	=item dumpval $ref
161		332
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
163		334
		335	sub dumpval {
		336	eval {
		337	local $SIG{__DIE__};
		338	my $d;
		339	if (1) {
		340	$d = new Data::Dumper([$_[0]], ["*var"]);
		341	$d->Terse(1);
		342	$d->Indent(2);
		343	$d->Quotekeys(0);
		344	$d->Useqq(1);
		345	#$d->Bless(...);
		346	$d->Seen($_[1]) if @_ > 1;
		347	$d = $d->Dump();
		348	}
		349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		350	$d
		351	} || "[unable to dump $_[0]: '$@']";
		352	}
		353
		354	=item $scalar = load_file $path
		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
164	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
165		369
166	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
167		371
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
176		373
177	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
178		375
179	=cut	376	=cut
180		377
181	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		379
186	=item my $guard = cf::guard { BLOCK }	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
187		382
188	Run the given callback when the guard object gets destroyed (useful for	383	=item $ref = cf::decode_storable $scalar
189	coroutine cancellations).
190		384
191	You can call C<< ->cancel >> on the guard object to stop the block from	385	Same as Coro::Storable::thaw, so blocks.
192	being executed.
193		386
194	=cut	387	=cut
195		388
196	sub guard(&) {	389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		390
200	sub cf::guard::cancel {	391	=item $ref = cf::decode_yaml $scalar
201	${$_[0]} = sub { };
202	}
203		392
204	sub cf::guard::DESTROY {	393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
205	${$_[0]}->();	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	}
206	}	443	}
207		444
208	=item cf::lock_wait $string	445	=item cf::lock_wait $string
209		446
210	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
211		448
212	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
213		450
214	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
215	a 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,
216	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
217	returned.	454	returned.
218		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
219	Lock names should begin with a unique identifier (for example, find_map	459	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	460	uses map_find and cf::map::load uses map_load).
221		461
222	=cut	462	=item $locked = cf::lock_active $string
223		463
224	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
225		469
226	sub lock_wait($) {	470	sub lock_wait($) {
227	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	472	}
235		473
236	sub lock_acquire($) {	474	sub lock_acquire($) {
237	my ($key) = @_;	475	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	476	}
		477
		478	sub lock_active($) {
		479	$LOCKS->count ($_[0]) < 1
		480	}
		481
		482	sub freeze_mainloop {
		483	tick_inhibit_inc;
		484
		485	&Guard::guard (\&tick_inhibit_dec);
		486	}
		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	$sig->wait;
		572	}
		573
		574	=item cf::async { BLOCK }
		575
		576	Currently the same as Coro::async_pool, meaning you cannot use
		577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
		579
		580	=cut
		581
		582	BEGIN { *async = \&Coro::async_pool }
249		583
250	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
251		585
252	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
255		590
256	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
259	fast or be very important.	594	fast or be very important.
…		…
261	=cut	596	=cut
262		597
263	sub sync_job(&) {	598	sub sync_job(&) {
264	my ($job) = @_;	599	my ($job) = @_;
265		600
266	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
267	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
269		606
270	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	608
272	local $FREEZE = 1;	609	my $freeze_guard = freeze_mainloop;
273		610
274	my $busy = 1;	611	my $busy = 1;
275	my @res;	612	my @res;
276		613
277	(Coro::async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	616	@res = eval { $job->() };
279	warn $@ if $@;	617	error $@ if $@;
280	undef $busy;	618	undef $busy;
281	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
282		620
283	while ($busy) {	621	while ($busy) {
		622	if (Coro::nready) {
284	Coro::cede_notself;	623	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
286	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
287		632
288	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
289	} else {	634	} else {
290	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
291		636
292	$job->()	637	$job->()
293	}	638	}
294	}	639	}
295		640
296	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
297		642
298	Creates and returns a new coro. This coro is automcatially being canceled	643	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
300		645
301	=cut	646	=cut
302		647
303	sub coro(&) {	648	sub async_ext(&) {
304	my $cb = shift;	649	my $cb = shift;
305		650
306	my $coro; $coro = async {	651	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		652
313	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
315	});	655	});
316	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
317		657
318	$coro	658	$coro
319	}	659	}
320		660
321	sub write_runtime {	661	=item fork_call { }, @args
322	my $runtime = cf::localdir . "/runtime";
323		662
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
325	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.
326		667
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		669
331	aio_fsync $fh	670	sub post_fork {
332	and return;	671	reset_signals;
		672	}
333		673
334	close $fh	674	sub fork_call(&@) {
335	or return;	675	my ($cb, @args) = @_;
336		676
337	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
338	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
339		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
340	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 => $type });
341	}	864	}
342		865
343	=back	866	=back
344		867
345	=cut	868	=cut
346		869
347	#############################################################################	870	#############################################################################
348		871
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
470		873
471	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
472	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")
473	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
474		877
475	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>
476	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
477	crossfire+).	880	Deliantra).
478		881
479	=over 4	882	=over 4
480		883
481	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
482		885
…		…
526	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
527		930
528	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
530		933
531	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		936
534	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
535		938
536	=over 4	939	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	1000	our @CB_MAP = ();
598		1001
599	my %attachment;	1002	my %attachment;
600		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
601	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
603		1012
604	use sort 'stable';	1013	use sort 'stable';
605		1014
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
640		1049
641	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		1054
646	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
648		1057
649	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
654		1063
655	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		1066
658	} elsif (ref $type) {	1067	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
660		1069
661	} else {	1070	} else {
662	shift @arg;	1071	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
664	}	1073	}
665	}	1074	}
666	}	1075	}
667		1076
668	sub _object_attach {	1077	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
679	}	1088	}
680		1089
681	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
682	} else {	1091	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1093	}
685		1094
686	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
687	}	1096	}
688		1097
…		…
690	if (ref $_[0]) {	1099	if (ref $_[0]) {
691	_object_attach @_;	1100	_object_attach @_;
692	} else {	1101	} else {
693	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
694	}	1103	}
		1104	_recalc_want;
695	};	1105	};
696		1106
697	# all those should be optimised	1107	# all those should be optimised
698	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1113	reattach ($obj);
704	} else {	1114	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
706	}	1116	}
		1117	_recalc_want;
707	};	1118	};
708		1119
709	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
711		1122
…		…
726	";	1137	";
727	die if $@;	1138	die if $@;
728	}	1139	}
729		1140
730	our $override;	1141	our $override;
731	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?
732		1143
733	sub override {	1144	sub override {
734	$override = 1;	1145	$override = 1;
735	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
736	}	1147	}
737		1148
738	sub do_invoke {	1149	sub do_invoke {
739	my $event = shift;	1150	my $event = shift;
740	my $callbacks = shift;	1151	my $callbacks = shift;
741		1152
742	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
743		1154
744	local $override;	1155	local $override;
745		1156
746	for (@$callbacks) {	1157	for (@$callbacks) {
747	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
748		1159
749	if ($@) {	1160	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1162	override;
753	}	1163	}
754		1164
755	return 1 if $override;	1165	return 1 if $override;
756	}	1166	}
757		1167
758	0	1168	0
759	}	1169	}
760		1170
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1172
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1174
765	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
766		1176
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1180
771	=back	1181	=back
772		1182
773	=cut	1183	=cut
774		1184
775	#############################################################################	1185	#############################################################################
776	# 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	}
777		1229
778	sub reattach {	1230	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
780	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
781		1236
782	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
783		1238
784	@$registry = ();	1239	@$registry = ();
785		1240
…		…
790	for (@$attach) {	1245	for (@$attach) {
791	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
793	}	1248	}
794	} else {	1249	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1251	}
797	}	1252	}
798	}	1253	}
799		1254
800	cf::attachable->attach (	1255	cf::attachable->attach (
801	prio => -1000000,	1256	prio => -1000000,
802	on_instantiate => sub {	1257	on_instantiate => sub {
803	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
804		1259
805	$data = from_json $data;	1260	$data = decode_json $data;
806		1261
807	for (@$data) {	1262	for (@$data) {
808	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
809		1264
810	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1281	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
828		1283
829	sync_job {	1284	sync_job {
830	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
833		1290
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$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;
837	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
838	close $fh;	1298	aio_close $fh;
839		1299
840	if (@$objs) {	1300	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	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;
845	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
846	close $fh;	1309	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
848	}	1311	}
849	} else {	1312	} else {
850	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
851	}	1314	}
852		1315
853	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1320	} else {
855	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
856	}	1322	}
857	} else {	1323	} else {
858	aio_unlink $filename;	1324	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
860	}	1326	}
861	}	1327	};
862	}	1328	}
863		1329
864	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
866		1332
…		…
878	or return;	1344	or return;
879		1345
880	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
882	or return;	1348	or return;
		1349
883	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
884	}	1352	}
885		1353
		1354	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
888	return ($data, $av);	1359	($data, $av)
889	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
890		1367
891	#############################################################################	1368	#############################################################################
892	# command handling &c	1369	# command handling &c
893		1370
894	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1385	}
909		1386
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1388
912	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.
913		1394
914	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
915	called.	1396	called.
916		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
917	=cut	1409	=cut
918		1410
919	sub register_extcmd {	1411	sub register_extcmd {
920	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
921		1413
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
926	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
927		1424
928	cf::player->attach (	1425	cf::player->attach (
929	on_command => sub {	1426	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
931		1428
932	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
933	or return;	1430	or return;
934		1431
…		…
939	cf::override;	1436	cf::override;
940	},	1437	},
941	on_extcmd => sub {	1438	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
943		1440
944	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1442
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
952	} else {	1458	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1460	}
955		1461
956	cf::override;	1462	cf::override;
957	},	1463	},
958	);	1464	);
959		1465
960	sub register {	1466	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1467	sub cache_extensions {
967	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
968		1469
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1473	}
1019	}	1474	};
1020		1475
1021	# remove extcmds	1476	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1477	}
1035		1478
1036	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1037	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1486	next unless -r $path;
1039	eval {	1487
1040	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	}
1041	1	1551	}
1042	} 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	}
1043	}	1564	};
1044	}	1565	}
1045		1566
1046	#############################################################################	1567	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1568
1049	*cf::mapsupport::on_clean = sub {	1569	=back
		1570
		1571	=head2 CORE EXTENSIONS
		1572
		1573	Functions and methods that extend core deliantra objects.
		1574
		1575	=cut
		1576
		1577	package cf::player;
		1578
		1579	use Coro::AIO;
		1580
		1581	=head3 cf::player
		1582
		1583	=over 4
		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
		1599	=item cf::player::find $login
		1600
		1601	Returns the given player object, loading it if necessary (might block).
		1602
		1603	=cut
		1604
		1605	sub playerdir($) {
		1606	"$PLAYERDIR/"
		1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1608	}
		1609
		1610	sub path($) {
		1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1612
		1613	(playerdir $login) . "/playerdata"
		1614	}
		1615
		1616	sub find_active($) {
		1617	$cf::PLAYER{$_[0]}
		1618	and $cf::PLAYER{$_[0]}->active
		1619	and $cf::PLAYER{$_[0]}
		1620	}
		1621
		1622	sub exists($) {
1050	my ($map) = @_;	1623	my ($login) = @_;
1051		1624
1052	my $path = $map->tmpname;	1625	$cf::PLAYER{$login}
1053	defined $path or return;	1626	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1627	}
1066		1628
1067	# TODO: compatibility cruft, remove when no longer needed	1629	sub find($) {
		1630	return $cf::PLAYER{$_[0]} || do {
		1631	my $login = $_[0];
		1632
		1633	my $guard = cf::lock_acquire "user_find:$login";
		1634
		1635	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1651	$cf::PLAYER{$login} = $pl
		1652	}
		1653	}
		1654	}
		1655
1068	cf::player->attach (	1656	cf::player->attach (
1069	on_load => sub {	1657	on_load => sub {
1070	my ($pl, $path) = @_;	1658	my ($pl, $path) = @_;
1071		1659
1072	for my $o (all_objects $pl->ob) {	1660	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1661	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1662
1076	%$o = %{ Storable::thaw pack "H*", $value };	1663	$pl->ob->current_weapon ($slots->[0]);
1077	}	1664	$pl->combat_ob ($slots->[1]);
1078	}	1665	$pl->ranged_ob ($slots->[2]);
1079	},	1666	},
1080	);	1667	);
1081		1668
1082	#############################################################################	1669	sub save($) {
		1670	my ($pl) = @_;
1083		1671
1084	=head2 CORE EXTENSIONS	1672	return if $pl->{deny_save};
1085		1673
1086	Functions and methods that extend core crossfire objects.	1674	my $path = path $pl;
		1675	my $guard = cf::lock_acquire "user_save:$path";
1087		1676
1088	=head3 cf::player	1677	return if $pl->{deny_save};
		1678
		1679	aio_mkdir playerdir $pl, 0770;
		1680	$pl->{last_save} = $cf::RUNTIME;
		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
		1687	$pl->save_pl ($path);
		1688	cf::cede_to_tick;
		1689	}
		1690
		1691	sub new($) {
		1692	my ($login) = @_;
		1693
		1694	my $self = create;
		1695
		1696	$self->ob->name ($login);
		1697	$self->{deny_save} = 1;
		1698
		1699	$cf::PLAYER{$login} = $self;
		1700
		1701	$self
		1702	}
		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
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
		1721	sub quit_character {
		1722	my ($pl) = @_;
		1723
		1724	my $name = $pl->ob->name;
		1725
		1726	$pl->{deny_save} = 1;
		1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1728
		1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
		1736	$pl->ns->destroy if $pl->ns;
		1737
		1738	my $path = playerdir $pl;
		1739	my $temp = "$path~$cf::RUNTIME~deleting~";
		1740	aio_rename $path, $temp;
		1741	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		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") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
		1831	=item $player->ext_reply ($msgid, @msg)
		1832
		1833	Sends an ext reply to the player.
		1834
		1835	=cut
		1836
		1837	sub ext_reply($$@) {
		1838	my ($self, $id, @msg) = @_;
		1839
		1840	$self->ns->ext_reply ($id, @msg)
		1841	}
		1842
		1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
1089		1856
1090	=over 4	1857	=over 4
1091		1858
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1859	=cut
1097		1860
1098	sub cf::player::exists($) {	1861	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1862
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1863	=item cf::region::find_by_path $path
1104		1864
1105	Sends an ext reply to the player.	1865	Tries to decuce the likely region for a map knowing only its path.
1106		1866
1107	=cut	1867	=cut
1108		1868
1109	sub cf::player::ext_reply($$$%) {	1869	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1870	my ($path) = @_;
1111		1871
1112	$msg{msgid} = $id;	1872	$path =~ s/^~[^\/]*//; # skip ~login
1113		1873
1114	$self->send ("ext " . to_json \%msg);	1874	my ($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
1115	}	1884	}
1116		1885
1117	=back	1886	=back
1118
1119		1887
1120	=head3 cf::map	1888	=head3 cf::map
1121		1889
1122	=over 4	1890	=over 4
1123		1891
…		…
1126	package cf::map;	1894	package cf::map;
1127		1895
1128	use Fcntl;	1896	use Fcntl;
1129	use Coro::AIO;	1897	use Coro::AIO;
1130		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1131	our $MAX_RESET = 7200;	1903	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1904	our $DEFAULT_RESET = 3000;
1133		1905
1134	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($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 {
1135	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1136		1946
1137	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1138	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
1139	$path,	1991	$path
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})
1151	}	1992	}
1152		1993
1153	# and all this just because we cannot iterate over	1994	sub new_from_path {
1154	# all maps in C++...	1995	my (undef, $path, $base) = @_;
1155	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 '$base')";
		2011	()
		2012	}
		2013
		2014	# may re-bless or do other evil things
		2015	sub init {
1156	my ($change) = @_;	2016	my ($self) = @_;
1157		2017
1158	$_->change_map_light ($change)	2018	$self
1159	for grep $_->outdoor, values %cf::MAP;
1160	}	2019	}
1161		2020
		2021	sub as_string {
		2022	my ($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
1162	sub try_load_header($) {	2071	sub load_header_from($) {
1163	my ($path) = @_;	2072	my ($self, $path) = @_;
1164		2073
1165	utf8::encode $path;	2074	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	2075	my $f = new_from_file cf::object::thawer $path
1167	or return;	2076	or return;
1168		2077
1169	my $map = cf::map::new	2078	$self->_load_header ($f)
1170	or return;	2079	or return;
1171		2080
1172	$map->load_header ($path)	2081	local $MAP_LOADING{$self->{path}} = $self;
		2082	$f->resolve_delayed_derefs;
		2083
		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
1173	or return;	2127	or return;
		2128	$self->prepare_orig;
		2129	}
1174		2130
1175	$map->{load_path} = $path;	2131	$self->{deny_reset} = 1
		2132	if $self->no_reset;
1176		2133
1177	$map	2134	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2135	unless $self->default_region;
1179		2136
		2137	1
		2138	}
		2139
		2140	sub find;
1180	sub find_map {	2141	sub find {
1181	my ($path, $origin) = @_;	2142	my ($path, $origin) = @_;
1182		2143
1183	#warn "find_map<$path,$origin>\n";#d#	2144	cf::cede_to_tick;
1184		2145
1185	$path = new cf::path $path, $origin && $origin->path;	2146	$path = normalise $path, $origin;
1186	my $key = $path->as_string;
1187		2147
1188	cf::lock_wait "map_find:$key";	2148	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1189
1190	$cf::MAP{$key} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	2149	my $guard2 = cf::lock_acquire "map_find:$path";
1192		2150
1193	# do it the slow way	2151	$cf::MAP{$path} || do {
1194	my $map = try_load_header $path->save_path;	2152	my $map = new_from_path cf::map $path
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	2153	or return;
1208		2154
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2155	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2156
1222	if ($map->should_reset) {	2157	$map->load_header
		2158	or return;
		2159
		2160	if ($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;
1223	$map->reset;	2165	$map->reset;
1224	undef $guard;	2166	return find $path;
1225	$map = find_map $path;
1226	}	2167	}
1227		2168
1228	$cf::MAP{$key} = $map	2169	$cf::MAP{$path} = $map
1229	}	2170	}
1230	}	2171	}
		2172
		2173	sub pre_load { }
		2174	#sub post_load { } # XS
1231		2175
1232	sub load {	2176	sub load {
1233	my ($self) = @_;	2177	my ($self) = @_;
1234		2178
		2179	local $self->{deny_reset} = 1; # loading can take a long time
		2180
1235	my $path = $self->{path};	2181	my $path = $self->{path};
		2182
		2183	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2184	my $guard = cf::lock_acquire "map_data:$path";
1237		2185
		2186	return unless $self->valid;
1238	return if $self->in_memory != cf::MAP_SWAPPED;	2187	return unless $self->in_memory == cf::MAP_SWAPPED;
1239		2188
1240	$self->in_memory (cf::MAP_LOADING);	2189	$self->in_memory (cf::MAP_LOADING);
1241		2190
1242	$self->alloc;	2191	$self->alloc;
1243	$self->load_objects ($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)
1244	or return;	2200	or return;
1245		2201
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2202	$self->post_load_original
1247	if delete $self->{load_original};	2203	if delete $self->{load_original};
1248		2204
1249	if (my $uniq = $path->uniq_path) {	2205	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	2206	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	2207	unless (aio_stat $uniq) {
		2208	if (my $f = new_from_file cf::object::thawer $uniq) {
1252	$self->clear_unique_items;	2209	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	2210	$self->_load_objects ($f);
		2211	$f->resolve_delayed_derefs;
		2212	}
		2213	}
1254	}	2214	}
1255	}
1256		2215
		2216	$f->resolve_delayed_derefs;
		2217	}
		2218
		2219	cf::cede_to_tick;
1257	# now do the right thing for maps	2220	# now do the right thing for maps
1258	$self->link_multipart_objects;	2221	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	2222	$self->difficulty ($self->estimate_difficulty)
1269	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;
1270	$self->activate;	2231	$self->activate;
1271	}	2232	}
1272		2233
		2234	$self->{last_save} = $cf::RUNTIME;
		2235	$self->last_access ($cf::RUNTIME);
		2236
1273	$self->in_memory (cf::MAP_IN_MEMORY);	2237	$self->in_memory (cf::MAP_ACTIVE);
1274	}	2238	}
1275		2239
1276	sub load_map_sync {	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	$self
		2258	}
		2259
		2260	# find and load all maps in the 3x3 area around a map
		2261	sub load_neighbours {
		2262	my ($map) = @_;
		2263
		2264	my @neigh; # diagonal neighbours
		2265
		2266	for (0 .. 3) {
		2267	my $neigh = $map->tile_path ($_)
		2268	or next;
		2269	$neigh = find $neigh, $map
		2270	or next;
		2271	$neigh->load;
		2272
		2273	# now find the diagonal neighbours
		2274	push @neigh,
		2275	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2276	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2277	}
		2278
		2279	for (grep defined $_->[0], @neigh) {
		2280	my ($path, $origin) = @$_;
		2281	my $neigh = find $path, $origin
		2282	or next;
		2283	$neigh->load;
		2284	}
		2285	}
		2286
		2287	sub find_sync {
1277	my ($path, $origin) = @_;	2288	my ($path, $origin) = @_;
1278		2289
1279	#warn "load_map_sync<$path, $origin>\n";#d#	2290	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2291	if $Coro::current == $Coro::main;
1280		2292
1281	cf::sync_job {	2293	find $path, $origin
1282	my $map = cf::map::find_map $path, $origin	2294	}
1283	or return;	2295
		2296	sub do_load_sync {
		2297	my ($map) = @_;
		2298
		2299	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2300	if $Coro::current == $Coro::main;
		2301
1284	$map->load;	2302	$map->load;
1285	$map	2303	}
		2304
		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
		2319	$MAP_PREFETCHER ||= cf::async {
		2320	$Coro::current->{desc} = "map prefetcher";
		2321
		2322	while (%MAP_PREFETCH) {
		2323	while (my ($k, $v) = each %MAP_PREFETCH) {
		2324	if (my $map = find $k) {
		2325	$map->load if $v;
		2326	}
		2327
		2328	delete $MAP_PREFETCH{$k};
		2329	}
		2330	}
		2331	undef $MAP_PREFETCHER;
		2332	};
		2333	$MAP_PREFETCHER->prio (6);
		2334
		2335	()
		2336	}
		2337
		2338	# common code, used by both ->save and ->swapout
		2339	sub _save {
		2340	my ($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);
1286	}	2367	}
1287	}	2368	}
1288		2369
1289	sub save {	2370	sub save {
1290	my ($self) = @_;	2371	my ($self) = @_;
1291		2372
1292	$self->{last_save} = $cf::RUNTIME;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1293		2374
1294	return unless $self->dirty;	2375	$self->_save;
1295
1296	my $save = $self->{path}->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1298
1299	$self->{load_path} = $save;
1300
1301	return if $self->{deny_save};
1302
1303	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}
1309	}	2376	}
1310		2377
1311	sub swap_out {	2378	sub swap_out {
1312	my ($self) = @_;	2379	my ($self) = @_;
1313		2380
		2381	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2382
		2383	return if $self->in_memory != cf::MAP_ACTIVE;
		2384	return if $self->{deny_save};
1314	return if $self->players;	2385	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};
1317		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
1318	$self->save;	2393	$self->_save;
		2394
		2395	# then free the map
1319	$self->clear;	2396	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);
1321	}	2397	}
1322		2398
1323	sub reset_at {	2399	sub reset_at {
1324	my ($self) = @_;	2400	my ($self) = @_;
1325		2401
1326	# TODO: safety, remove and allow resettable per-player maps	2402	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	2403	return 1e99 if $self->{deny_reset};
1329		2404
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2405	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2406	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		2407
…		…
1337	my ($self) = @_;	2412	my ($self) = @_;
1338		2413
1339	$self->reset_at <= $cf::RUNTIME	2414	$self->reset_at <= $cf::RUNTIME
1340	}	2415	}
1341		2416
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	2417	sub reset {
1364	my ($self) = @_;	2418	my ($self) = @_;
1365		2419
		2420	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2421
1366	return if $self->players;	2422	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		2423
1369	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	}
1370		2435
1371	delete $cf::MAP{$self->path};	2436	delete $cf::MAP{$self->path};
1372		2437
		2438	$self->deactivate;
1373	$_->clear_links_to ($self) for values %cf::MAP;	2439	$_->clear_links_to ($self) for values %cf::MAP;
		2440	$self->clear;
1374		2441
1375	$self->unlink_save;	2442	$self->unlink_save;
1376	$self->destroy;	2443	$self->destroy;
1377	}	2444	}
1378		2445
1379	my $nuke_counter = "aaaa";	2446	my $nuke_counter = "aaaa";
1380		2447
1381	sub nuke {	2448	sub nuke {
1382	my ($self) = @_;	2449	my ($self) = @_;
1383		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};
1384	$self->{deny_save} = 1;	2460	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2461	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2462	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2463
		2464	$cf::MAP{$self->path} = $self;
		2465	}
		2466
1387	$self->reset; # polite request, might not happen	2467	$self->reset; # polite request, might not happen
1388	}	2468	}
1389		2469
1390	sub customise_for {	2470	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2471
1393	if ($map->per_player) {	2472	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2473	maps. May block.
		2474
		2475	=cut
		2476
		2477	sub tmp_maps() {
1395	}	2478	[
1396		2479	map {
1397	$map	2480	utf8::decode $_;
		2481	/\.map$/
		2482	? normalise $_
		2483	: ()
		2484	} @{ aio_readdir $TMPDIR or [] }
		2485	]
1398	}	2486	}
1399		2487
1400	sub emergency_save {	2488	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2489
1403	warn "enter emergency map save\n";	2490	Returns an arrayref with all map paths of currently instantiated and saved
		2491	random maps. May block.
1404		2492
1405	cf::sync_job {	2493	=cut
1406	warn "begin emergency map save\n";	2494
1407	$_->save for values %cf::MAP;	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;
1408	};	2552	}
1409		2553
1410	warn "end emergency map save\n";	2554	\@maps
		2555	}
		2556
		2557	=back
		2558
		2559	=head3 cf::object
		2560
		2561	=cut
		2562
		2563	package cf::object;
		2564
		2565	=over 4
		2566
		2567	=item $ob->inv_recursive
		2568
		2569	Returns the inventory of the object I<and> their inventories, recursively,
		2570	but I<not> the object itself.
		2571
		2572	=cut
		2573
		2574	sub inv_recursive_;
		2575	sub inv_recursive_ {
		2576	map { $_, inv_recursive_ $_->inv } @_
		2577	}
		2578
		2579	sub inv_recursive {
		2580	inv_recursive_ inv $_[0]
		2581	}
		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	}
1411	}	2609	}
1412		2610
1413	package cf;	2611	package cf;
1414		2612
1415	=back	2613	=back
1416
1417		2614
1418	=head3 cf::object::player	2615	=head3 cf::object::player
1419		2616
1420	=over 4	2617	=over 4
1421		2618
…		…
1424	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>
1425	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
1426	dialogue with the given NPC character.	2623	dialogue with the given NPC character.
1427		2624
1428	=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	};
1429		2640
1430	# rough implementation of a future "reply" method that works	2641	# rough implementation of a future "reply" method that works
1431	# with dialog boxes.	2642	# with dialog boxes.
1432	#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
1433	sub cf::object::player::reply($$$;$) {	2644	sub cf::object::player::reply($$$;$) {
…		…
1435		2646
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2647	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2648
1438	if ($self->{record_replies}) {	2649	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2650	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2651
1440	} 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 {
1441	$msg = $npc->name . " says: $msg" if $npc;	2660	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2661	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2662	}
1443	}	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 (@_);
1444	}	2674	}
1445		2675
1446	=item $player_object->may ("access")	2676	=item $player_object->may ("access")
1447		2677
1448	Returns wether the given player is authorized to access resource "access"	2678	Returns wether the given player is authorized to access resource "access"
…		…
1461		2691
1462	=item $player_object->enter_link	2692	=item $player_object->enter_link
1463		2693
1464	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}>).
1465		2695
1466	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.
1467	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.
1468		2702
1469	=item $player_object->leave_link ($map, $x, $y)	2703	=item $player_object->leave_link ($map, $x, $y)
1470		2704
1471	Moves the player out of the specila link map onto the given map. If the	2705	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2706	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2707	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2708	fails, to the emergency map position.
1475		2709
1476	Might block.	2710	Might block.
1477		2711
1478	=cut	2712	=cut
		2713
		2714	sub link_map {
		2715	unless ($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	$LINK_MAP
		2722	}
1479		2723
1480	sub cf::object::player::enter_link {	2724	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2725	my ($self) = @_;
1482		2726
1483	$self->deactivate_recursive;	2727	$self->deactivate_recursive;
1484		2728
1485	return if $self->map == $LINK_MAP;	2729	++$self->{_link_recursion};
		2730
		2731	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2732
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2733	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2734	if $self->map && $self->map->{path} ne "{link}";
1489		2735
1490	$self->enter_map ($LINK_MAP, 20, 20);	2736	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1491	}	2737	}
1492		2738
1493	sub cf::object::player::leave_link {	2739	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2740	my ($self, $map, $x, $y) = @_;
		2741
		2742	return unless $self->contr->active;
1495		2743
1496	my $link_pos = delete $self->{_link_pos};	2744	my $link_pos = delete $self->{_link_pos};
1497		2745
1498	unless ($map) {	2746	unless ($map) {
1499	# restore original map position	2747	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2748	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2749	$map = cf::map::find $map;
1502		2750
1503	unless ($map) {	2751	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2752	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2753	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2754	or die "FATAL: cannot load emergency map\n";
1507	}	2755	}
1508	}	2756	}
1509		2757
1510	($x, $y) = (-1, -1)	2758	($x, $y) = (-1, -1)
1511	unless (defined $x) && (defined $y);	2759	unless (defined $x) && (defined $y);
1512		2760
1513	# use -1 or undef as default coordinates, not 0, 0	2761	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2762	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2763	if $x <= 0 && $y <= 0;
1516		2764
1517	$map->load;	2765	$map->load;
		2766	$map->load_neighbours;
1518		2767
		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
1519	$self->activate_recursive;	2775	$self->activate_recursive;
1520	$self->enter_map ($map, $x, $y);
1521	}
1522
1523	cf::player->attach (
1524	on_logout => sub {
1525	my ($pl) = @_;
1526
1527	# abort map switching before logout
1528	if ($pl->ob->{_link_pos}) {
1529	cf::sync_job {
1530	$pl->ob->leave_link
1531	};
1532	}
1533	},	2776	}
1534	on_login => sub {
1535	my ($pl) = @_;
1536		2777
1537	# try to abort aborted map switching on player login :)	2778	}
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550		2779
1551	=item $player_object->goto_map ($path, $x, $y)	2780	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1552		2781
1553	=cut	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.
1554		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
		2791	=cut
		2792
		2793	our $GOTOGEN;
		2794
1555	sub cf::object::player::goto_map {	2795	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2796	my ($self, $path, $x, $y, $check, $done) = @_;
		2797
		2798	if ($self->{_link_recursion} >= $MAX_LINKS) {
		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;
1557		2806
1558	$self->enter_link;	2807	$self->enter_link;
1559		2808
1560	(Coro::async {	2809	(async {
1561	$path = new cf::path $path;	2810	$Coro::current->{desc} = "player::goto $path $x $y";
1562		2811
1563	my $map = cf::map::find_map $path->as_string;	2812	# *tag paths override both path and x|y
		2813	if ($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) {
1564	$map = $map->customise_for ($self) if $map;	2835	$map = $map->customise_for ($self);
1565		2836	$map = $check->($map, $x, $y, $self) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2837	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2838	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2839	}
1570		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};
1571	$self->leave_link ($map, $x, $y);	2851	$self->leave_link ($map, $x, $y);
		2852	}
		2853
		2854	$done->($self) if $done;
1572	})->prio (1);	2855	})->prio (1);
1573	}	2856	}
1574		2857
1575	=item $player_object->enter_exit ($exit_object)	2858	=item $player_object->enter_exit ($exit_object)
1576		2859
…		…
1578		2861
1579	sub parse_random_map_params {	2862	sub parse_random_map_params {
1580	my ($spec) = @_;	2863	my ($spec) = @_;
1581		2864
1582	my $rmp = { # defaults	2865	my $rmp = { # defaults
1583	xsize => 10,	2866	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2867	ysize => (cf::rndm 15, 40),
		2868	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2869	#layout => string,
1585	};	2870	};
1586		2871
1587	for (split /\n/, $spec) {	2872	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2873	my ($k, $v) = split /\s+/, $_, 2;
1589		2874
…		…
1601	# that depends on the exit object	2886	# that depends on the exit object
1602		2887
1603	my $rmp = parse_random_map_params $exit->msg;	2888	my $rmp = parse_random_map_params $exit->msg;
1604		2889
1605	if ($exit->map) {	2890	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2891	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2892	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2893	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2894	$rmp->{origin_y} = $exit->y;
		2895
		2896	$exit->map->touch;
1610	}	2897	}
1611		2898
1612	$rmp->{random_seed} ||= $exit->random_seed;	2899	$rmp->{random_seed} ||= $exit->random_seed;
1613		2900
1614	my $data = cf::to_json $rmp;	2901	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1615	my $md5 = Digest::MD5::md5_hex $data;	2902	my $md5 = Digest::MD5::md5_hex $data;
		2903	my $meta = "$RANDOMDIR/$md5.meta";
1616		2904
1617	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) {
1618	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;
1619		2909
		2910	my $slaying = "?random/$md5";
		2911
		2912	if ($exit->valid) {
1620	$exit->slaying ("?random/$md5");	2913	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2914	$exit->msg (undef);
		2915	}
1622	}	2916	}
1623	}	2917	}
1624		2918
1625	sub cf::object::player::enter_exit {	2919	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2920	my ($self, $exit) = @_;
1627		2921
1628	return unless $self->type == cf::PLAYER;	2922	return unless $self->type == cf::PLAYER;
1629		2923
1630	$self->enter_link;	2924	$self->enter_link;
1631		2925
1632	(Coro::async {	2926	(async {
		2927	$Coro::current->{desc} = "enter_exit";
		2928
1633	unless (eval {	2929	unless (eval {
		2930	$self->deactivate_recursive; # just to be sure
1634		2931
		2932	# random map handling
		2933	{
		2934	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2935
1635	prepare_random_map $exit	2936	prepare_random_map $exit
1636	if $exit->slaying eq "/!";	2937	if $exit->slaying eq "/!";
		2938	}
1637		2939
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2940	my $map = cf::map::normalise $exit->slaying, $exit->map;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2941	my $x = $exit->stats->hp;
		2942	my $y = $exit->stats->sp;
1640		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
1641	1;	2950	1
1642	}) {	2951	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2952	$self->message ("Something went wrong deep within the deliantra server. "
1644	. "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. "
1645	. "Please report this to the dungeon master",	2954	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2955	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2956
1648	warn "ERROR in enter_exit: $@";	2957	error "ERROR in enter_exit: $@";
1649	$self->leave_link;	2958	$self->leave_link;
1650	}	2959	}
1651	})->prio (1);	2960	})->prio (1);
1652	}	2961	}
1653		2962
…		…
1664		2973
1665	sub cf::client::send_drawinfo {	2974	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2975	my ($self, $text, $flags) = @_;
1667		2976
1668	utf8::encode $text;	2977	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2978	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2979	}
1671		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	}
1672		3202
1673	=item $success = $client->query ($flags, "text", \&cb)	3203	=item $success = $client->query ($flags, "text", \&cb)
1674		3204
1675	Queues a query to the client, calling the given callback with	3205	Queues a query to the client, calling the given callback with
1676	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>,
1677	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>.
1678		3208
1679	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
1680	reliable at some point in the future.	3210	become reliable at some point in the future.
1681		3211
1682	=cut	3212	=cut
1683		3213
1684	sub cf::client::query {	3214	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	3215	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	3223	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3224	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		3225
1696	$self->send_packet ($self->{query_queue}[0][0])	3226	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	3227	if @{ $self->{query_queue} } == 1;
		3228
		3229	1
1698	}	3230	}
1699		3231
1700	cf::client->attach (	3232	cf::client->attach (
		3233	on_connect => sub {
		3234	my ($ns) = @_;
		3235
		3236	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3237	},
1701	on_reply => sub {	3238	on_reply => sub {
1702	my ($ns, $msg) = @_;	3239	my ($ns, $msg) = @_;
1703		3240
1704	# this weird shuffling is so that direct followup queries	3241	# this weird shuffling is so that direct followup queries
1705	# get handled first	3242	# get handled first
1706	my $queue = delete $ns->{query_queue};	3243	my $queue = delete $ns->{query_queue}
		3244	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		3245
1708	(shift @$queue)->[1]->($msg);	3246	(shift @$queue)->[1]->($msg);
		3247	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		3248
1710	push @{ $ns->{query_queue} }, @$queue;	3249	push @{ $ns->{query_queue} }, @$queue;
1711		3250
1712	if (@{ $ns->{query_queue} } == @$queue) {	3251	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	3252	if (@$queue) {
…		…
1715	} else {	3254	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3255	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	3256	}
1718	}	3257	}
1719	},	3258	},
		3259	on_exticmd => sub {
		3260	my ($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	},
1720	);	3285	);
1721		3286
1722	=item $client->coro (\&cb)	3287	=item $client->async (\&cb)
1723		3288
1724	Create a new coroutine, running the specified callback. The coroutine will	3289	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	3290	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	3291	or loss of connection).
1727		3292
1728	=cut	3293	=cut
1729		3294
1730	sub cf::client::coro {	3295	sub cf::client::async {
1731	my ($self, $cb) = @_;	3296	my ($self, $cb) = @_;
1732		3297
1733	my $coro; $coro = async {	3298	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		3299
1740	$coro->on_destroy (sub {	3300	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	3301	delete $self->{_coro}{$coro+0};
1742	});	3302	});
1743		3303
…		…
1745		3305
1746	$coro	3306	$coro
1747	}	3307	}
1748		3308
1749	cf::client->attach (	3309	cf::client->attach (
1750	on_destroy => sub {	3310	on_client_destroy => sub {
1751	my ($ns) = @_;	3311	my ($ns) = @_;
1752		3312
1753	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3313	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1754	},	3314	},
1755	);	3315	);
…		…
1770	our $safe = new Safe "safe";	3330	our $safe = new Safe "safe";
1771	our $safe_hole = new Safe::Hole;	3331	our $safe_hole = new Safe::Hole;
1772		3332
1773	$SIG{FPE} = 'IGNORE';	3333	$SIG{FPE} = 'IGNORE';
1774		3334
1775	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3335	$safe->permit_only (Opcode::opset qw(
		3336	:base_core :base_mem :base_orig :base_math :base_loop
		3337	grepstart grepwhile mapstart mapwhile
		3338	sort time
		3339	));
1776		3340
1777	# here we export the classes and methods available to script code	3341	# here we export the classes and methods available to script code
1778		3342
1779	=pod	3343	=pod
1780		3344
1781	The following fucntions and emthods are available within a safe environment:	3345	The following functions and methods are available within a safe environment:
1782		3346
1783	cf::object contr pay_amount pay_player map	3347	cf::object
		3348	contr pay_amount pay_player map x y force_find force_add destroy
		3349	insert remove name archname title slaying race decrease split
		3350	value
		3351
1784	cf::object::player player	3352	cf::object::player
1785	cf::player peaceful	3353	player
1786	cf::map trigger	3354
		3355	cf::player
		3356	peaceful
		3357
		3358	cf::map
		3359	trigger
1787		3360
1788	=cut	3361	=cut
1789		3362
1790	for (	3363	for (
1791	["cf::object" => qw(contr pay_amount pay_player map)],	3364	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3365	insert remove inv nrof name archname title slaying race
		3366	decrease split destroy change_exp value msg lore send_msg)],
1792	["cf::object::player" => qw(player)],	3367	["cf::object::player" => qw(player)],
1793	["cf::player" => qw(peaceful)],	3368	["cf::player" => qw(peaceful send_msg)],
1794	["cf::map" => qw(trigger)],	3369	["cf::map" => qw(trigger)],
1795	) {	3370	) {
1796	no strict 'refs';
1797	my ($pkg, @funs) = @$_;	3371	my ($pkg, @funs) = @$_;
1798	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3372	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1799	for @funs;	3373	for @funs;
1800	}	3374	}
1801		3375
…		…
1816		3390
1817	my $qcode = $code;	3391	my $qcode = $code;
1818	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3392	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1819	$qcode =~ s/\n/\\n/g;	3393	$qcode =~ s/\n/\\n/g;
1820		3394
		3395	%vars = (_dummy => 0) unless %vars;
		3396
		3397	my @res;
1821	local $_;	3398	local $_;
1822	local @safe::cf::_safe_eval_args = values %vars;
1823		3399
1824	my $eval =	3400	my $eval =
1825	"do {\n"	3401	"do {\n"
1826	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3402	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1827	. "#line 0 \"{$qcode}\"\n"	3403	. "#line 0 \"{$qcode}\"\n"
1828	. $code	3404	. $code
1829	. "\n}"	3405	. "\n}"
1830	;	3406	;
1831		3407
		3408	if ($CFG{safe_eval}) {
1832	sub_generation_inc;	3409	sub_generation_inc;
		3410	local @safe::cf::_safe_eval_args = values %vars;
1833	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3411	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1834	sub_generation_inc;	3412	sub_generation_inc;
		3413	} else {
		3414	local @cf::_safe_eval_args = values %vars;
		3415	@res = wantarray ? eval eval : scalar eval $eval;
		3416	}
1835		3417
1836	if ($@) {	3418	if ($@) {
1837	warn "$@";	3419	warn "$@",
1838	warn "while executing safe code '$code'\n";	3420	"while executing safe code '$code'\n",
1839	warn "with arguments " . (join " ", %vars) . "\n";	3421	"with arguments " . (join " ", %vars) . "\n";
1840	}	3422	}
1841		3423
1842	wantarray ? @res : $res[0]	3424	wantarray ? @res : $res[0]
1843	}	3425	}
1844		3426
…		…
1858	=cut	3440	=cut
1859		3441
1860	sub register_script_function {	3442	sub register_script_function {
1861	my ($fun, $cb) = @_;	3443	my ($fun, $cb) = @_;
1862		3444
1863	no strict 'refs';	3445	$fun = "safe::$fun" if $CFG{safe_eval};
1864	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3446	*$fun = $safe_hole->wrap ($cb);
1865	}	3447	}
1866		3448
1867	=back	3449	=back
1868		3450
1869	=cut	3451	=cut
1870		3452
1871	#############################################################################	3453	#############################################################################
		3454	# the server's init and main functions
1872		3455
1873	=head2 EXTENSION DATABASE SUPPORT	3456	sub load_facedata($) {
		3457	my ($path) = @_;
1874		3458
1875	Crossfire maintains a very simple database for extension use. It can	3459	# HACK to clear player env face cache, we need some signal framework
1876	currently store anything that can be serialised using Storable, which	3460	# for this (global event?)
1877	excludes objects.	3461	%ext::player_env::MUSIC_FACE_CACHE = ();
1878		3462
1879	The parameter C<$family> should best start with the name of the extension	3463	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1880	using it, it should be unique.
1881		3464
1882	=over 4	3465	trace "loading facedata from $path\n";
1883		3466
1884	=item $hashref = cf::db_get $family	3467	my $facedata = decode_storable load_file $path;
1885		3468
1886	Return a hashref for use by the extension C<$family>, which can be	3469	$facedata->{version} == 2
1887	modified. After modifications, you have to call C<cf::db_dirty> or	3470	or cf::cleanup "$path: version mismatch, cannot proceed.";
1888	C<cf::db_sync>.
1889		3471
1890	=item $value = cf::db_get $family => $key	3472	# patch in the exptable
1891		3473	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1892	Returns a single value from the database	3474	$facedata->{resource}{"res/exp_table"} = {
1893		3475	type => FT_RSRC,
1894	=item cf::db_put $family => $hashref	3476	data => $exp_table,
1895		3477	hash => (Digest::MD5::md5 $exp_table),
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	waitpid $pid, 0 if $pid;
1927	if (0 == ($pid = fork)) {
1928	$DB->{_meta}{version} = 1;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});	3478	};
		3479	cf::cede_to_tick;
1945		3480
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}	3481	{
		3482	my $faces = $facedata->{faceinfo};
1950		3483
1951	sub db_get($;$) {	3484	while (my ($face, $info) = each %$faces) {
1952	@_ >= 2	3485	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	? $DB->{$_[0]}{$_[1]}
1954	: ($DB->{$_[0]} ||= { })
1955	}
1956		3486
1957	sub db_put($$;$) {	3487	cf::face::set_visibility $idx, $info->{visibility};
1958	if (@_ >= 3) {	3488	cf::face::set_magicmap $idx, $info->{magicmap};
1959	$DB->{$_[0]}{$_[1]} = $_[2];	3489	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1960	} else {	3490	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1961	$DB->{$_[0]} = $_[1];	3491	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1962	}
1963	db_dirty;
1964	}
1965		3492
1966	cf::global->attach (	3493	cf::cede_to_tick;
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	3494	}
1971	);
1972	}
1973		3495
1974	#############################################################################	3496	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	3497	next unless $info->{smooth};
1976		3498
1977	sub cfg_load {	3499	my $idx = cf::face::find $face
1978	open my $fh, "<:utf8", cf::confdir . "/config"	3500	or next;
1979	or return;
1980		3501
1981	local $/;	3502	if (my $smooth = cf::face::find $info->{smooth}) {
1982	*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	}
		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
		3634	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3635
		3636	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3637	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3638
		3639	if (exists $CFG{mlockall}) {
		3640	eval {
		3641	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3642	and die "WARNING: m(un)lockall failed: $!\n";
		3643	};
		3644	warn $@ if $@;
		3645	}
		3646	}
		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;
1983	}	3674	}
1984		3675
1985	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
1986	# we must not ever block the main coroutine	3686	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	3687	local $Coro::idle = sub {
1988	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#
1989	(Coro::unblock_sub {	3689	(async {
1990	Event::one_event;	3690	$Coro::current->{desc} = "IDLE BUG HANDLER";
1991	})->();	3691	EV::loop EV::LOOP_ONESHOT;
		3692	})->prio (Coro::PRIO_MAX);
1992	};	3693	};
1993		3694
1994	cfg_load;	3695	evthread_start IO::AIO::poll_fileno;
1995	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
1996	load_extensions;	3718	load_extensions;
1997	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;
1998	}	3738	}
1999		3739
2000	#############################################################################	3740	#############################################################################
2001	# initialisation	3741	# initialisation and cleanup
2002		3742
		3743	# install some emergency cleanup handlers
		3744	BEGIN {
		3745	our %SIGWATCHER = ();
		3746	for my $signal (qw(INT HUP TERM)) {
		3747	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3748	cf::cleanup "SIG$signal";
		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
		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 };
		3839	}
		3840
		3841	sub emergency_save() {
		3842	my $freeze_guard = cf::freeze_mainloop;
		3843
		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;
		3850
		3851	cf::sync_job {
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
		3854	# use a peculiar iteration method to avoid tripping on perl
		3855	# refcount bugs in for. also avoids problems with players
		3856	# and maps saved/destroyed asynchronously.
		3857	info "emergency_perl_save: begin player save\n";
		3858	for my $login (keys %cf::PLAYER) {
		3859	my $pl = $cf::PLAYER{$login} or next;
		3860	$pl->valid or next;
		3861	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3862	$pl->save;
		3863	}
		3864	info "emergency_perl_save: end player save\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin map save\n";
		3869	for my $path (keys %cf::MAP) {
		3870	my $map = $cf::MAP{$path} or next;
		3871	$map->valid or next;
		3872	$map->save;
		3873	}
		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
		3904	};
		3905
		3906	info "emergency_perl_save: leave\n";
		3907	}
		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
2003	sub reload() {	3946	sub do_reload_perl() {
2004	# can/must only be called in main	3947	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	3948	unless (in_main) {
2006	warn "can only reload from main coroutine\n";	3949	error "can only reload from main coroutine";
2007	return;	3950	return;
2008	}	3951	}
2009		3952
2010	warn "reloading...";	3953	return if $RELOAD++;
2011		3954
2012	local $FREEZE = 1;	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 {
2013	cf::emergency_save;	3964	#cf::emergency_save;
2014		3965
2015	eval {	3966	trace "perl_reload: cancelling all extension coros";
2016	# if anything goes wrong in here, we should simply crash as we already saved
2017
2018	# cancel all watchers
2019	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}
2022
2023	# cancel all extension coros
2024	$_->cancel for values %EXT_CORO;	3967	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	3968	%EXT_CORO = ();
2026		3969
2027	# unload all extensions	3970	trace "perl_reload: removing commands";
2028	for (@exts) {	3971	%COMMAND = ();
2029	warn "unloading <$_>";
2030	unload_extension $_;
2031	}
2032		3972
2033	# unload all modules loaded from $LIBDIR	3973	trace "perl_reload: removing ext/exti commands";
2034	while (my ($k, $v) = each %INC) {	3974	%EXTCMD = ();
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3975	%EXTICMD = ();
2036		3976
2037	warn "removing <$k>";	3977	trace "perl_reload: unloading/nuking all extensions";
2038	delete $INC{$k};	3978	for my $pkg (@EXTS) {
		3979	trace "... unloading $pkg";
2039		3980
2040	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;
2042
2043	if (my $cb = $k->can ("unload_module")) {	3981	if (my $cb = $pkg->can ("unload")) {
		3982	eval {
2044	$cb->();	3983	$cb->($pkg);
		3984	1
		3985	} or error "$pkg unloaded, but with errors: $@";
		3986	}
		3987
		3988	trace "... clearing $pkg";
		3989	clear_package $pkg;
2045	}	3990	}
2046		3991
2047	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 $k;
2048	}	4007	}
2049		4008
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	4009	trace "perl_reload: getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	4010	clear_package "safe::$_"
2056	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);
2057		4012
2058	# remove register_script_function callbacks	4013	trace "perl_reload: unloading cf.pm \"a bit\"";
2059	# TODO
2060
2061	# unload cf.pm "a bit"
2062	delete $INC{"cf.pm"};	4014	delete $INC{"cf.pm"};
		4015	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2063		4016
2064	# don't, removes xs symbols, too,	4017	# don't, removes xs symbols, too,
2065	# and global variables created in xs	4018	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	4019	#clear_package __PACKAGE__;
2067		4020
2068	# reload cf.pm	4021	info "perl_reload: unload completed, starting to reload now";
2069	warn "reloading cf.pm";	4022
		4023	trace "perl_reload: reloading cf.pm";
2070	require cf;	4024	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4025	cf::_connect_to_perl_1;
2072		4026
2073	# load config and database again	4027	trace "perl_reload: loading config and database again";
2074	cf::cfg_load;	4028	cf::reload_config;
2075	cf::db_load;
2076		4029
2077	# load extensions	4030	trace "perl_reload: loading extensions";
2078	warn "load extensions";
2079	cf::load_extensions;	4031	cf::load_extensions;
2080		4032
2081	# reattach attachments to objects	4033	if ($REATTACH_ON_RELOAD) {
2082	warn "reattach";	4034	trace "perl_reload: reattaching attachments to objects/players";
2083	_global_reattach;	4035	_global_reattach; # objects, sockets
		4036	trace "perl_reload: reattaching attachments to maps";
		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 $RELOAD_WATCHER;
		4071	};
2084	};	4072	};
2085
2086	if ($@) {
2087	warn $@;
2088	warn "error while reloading, exiting.";
2089	exit 1;
2090	}
2091
2092	warn "reloaded successfully";
2093	};
2094
2095	#############################################################################
2096
2097	unless ($LINK_MAP) {
2098	$LINK_MAP = cf::map::new;
2099
2100	$LINK_MAP->width (41);
2101	$LINK_MAP->height (41);
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,
2110	cb => sub {
2111	$_[0]->w->cancel;
2112
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});
2131
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	4073	}
2137
2138	register "<global>", __PACKAGE__;
2139		4074
2140	register_command "reload" => sub {	4075	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	4076	my ($who, $arg) = @_;
2142		4077
2143	if ($who->flag (FLAG_WIZ)) {	4078	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	4079	$who->message ("reloading server.");
		4080	async {
		4081	$Coro::current->{desc} = "perl_reload";
		4082	reload_perl;
		4083	};
2147	}	4084	}
2148	};	4085	};
2149		4086
2150	unshift @INC, $LIBDIR;	4087	#############################################################################
2151		4088
2152	$TICK_WATCHER = Event->timer (	4089	my $bug_warning = 0;
2153	reentrant => 0,	4090
2154	prio => 0,	4091	our @WAIT_FOR_TICK;
2155	at => $NEXT_TICK || $TICK,	4092	our @WAIT_FOR_TICK_BEGIN;
2156	data => WF_AUTOCANCEL,	4093
2157	cb => sub {	4094	sub wait_for_tick() {
2158	unless ($FREEZE) {	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
2159	cf::server_tick; # one server iteration	4117	cf::server_tick; # one server iteration
2160	$RUNTIME += $TICK;
2161	}
2162		4118
2163	$NEXT_TICK += $TICK;	4119	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2164		4120
2165	# if we are delayed by four ticks or more, skip them all	4121	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4122	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2167		4123	Coro::async_pool {
2168	$TICK_WATCHER->at ($NEXT_TICK);	4124	$Coro::current->{desc} = "runtime saver";
2169	$TICK_WATCHER->start;
2170	},
2171	);
2172
2173	IO::AIO::max_poll_time $TICK * 0.2;
2174
2175	Event->io (
2176	fd => IO::AIO::poll_fileno,
2177	poll => 'r',
2178	prio => 5,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,
2185	after => 0,
2186	interval => 10,
2187	cb => sub {
2188	(Coro::unblock_sub {
2189	write_runtime	4125	write_runtime_sync
2190	or warn "ERROR: unable to write runtime file: $!";	4126	or error "ERROR: unable to write runtime file: $!";
2191	})->();	4127	};
2192	},	4128	}
2193	);	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;
		4249
		4250	END { cf::emergency_save }
2194		4251
2195	1	4252	1
2196		4253

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