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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.159 by root, Wed Jan 10 22:50:12 2007 UTC vs.
Revision 1.561 by root, Fri Apr 22 06:10:33 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
42		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
43	our @EVENT;	93	our @EVENT;
44	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
45		96
46	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
47	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
48	our $NEXT_TICK;	123	our $NEXT_TICK;
49	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);
50		132
51	our %CFG;	133	our %CFG;
52		134
53	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
55		138
56	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
57	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
58	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		142
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
63		155
64	binmode STDOUT;	156	binmode STDOUT;
65	binmode STDERR;	157	binmode STDERR;
66		158
67	# read virtual server time, if available	159	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
69	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
70	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
71	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
72	}	164	}
73		165
74	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
75	mkdir cf::localdir . "/" . cf::playerdir;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		167
80	# a special map that is always available	168	mkdir $_
81	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
82	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
83		189
84	#############################################################################	190	#############################################################################
85		191
86	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
87		193
…		…
94	=item $cf::RUNTIME	200	=item $cf::RUNTIME
95		201
96	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
97	every server tick.	203	every server tick.
98		204
99	=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
100		208
101	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		213
104	=item $cf::NOW	214	=item $cf::NOW
105		215
106	The time of the last (current) server tick.	216	The time of the last (current) server tick.
107		217
108	=item $cf::TICK	218	=item $cf::TICK
109		219
110	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
111		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
112	=item %cf::CFG	232	=item %cf::CFG
113		233
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
115	from wherever your confdir points to.	235	from wherever your confdir points to.
116		236
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		238
119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	240	returns directly I<after> the tick processing (and consequently, can only wake one thread
121	processing has been done. Call C<< ->wait >> on them to maximise the	241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
122	window of cpu time available, or simply to synchronise to the server tick.	242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
123		259
124	=back	260	=back
125		261
126	=cut	262	=cut
127		263
128	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
129	*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 {
130	my $msg = join "", @_;	271	my $msg = join "", @_;
131	utf8::encode $msg;
132		272
133	$msg .= "\n"	273	$msg .= "\n"
134	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
135		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
136	LOG llevError, $msg;	278	LOG llevWarn, $msg;
137	};	279	};
138	}	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	};
139		294
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		302
147	# 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
148	# within the Safe compartment.	304	# within the Safe compartment.
149	for my $pkg (qw(	305	for my $pkg (qw(
150	cf::global cf::attachable	306	cf::global cf::attachable
151	cf::object cf::object::player	307	cf::object cf::object::player
152	cf::client cf::player	308	cf::client cf::player
153	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
154	cf::map cf::party cf::region	311	cf::party cf::region
155	)) {	312	)) {
156	no strict 'refs';
157	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
158	}	314	}
159		315
160	$Event::DIED = sub {	316	$EV::DIED = sub {
161	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
162	};	318	};
		319
		320	#############################################################################
		321
		322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
163		326
164	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
165		328
166	=over 4	329	=over 4
167		330
…		…
186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
187	$d	350	$d
188	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
189	}	352	}
190		353
191	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
192		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
193	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
194		369
195	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
196		371
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
205		373
206	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
207		375
208	=cut	376	=cut
209		377
210	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
212	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
		399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
213	}	443	}
214		444
215	=item cf::lock_wait $string	445	=item cf::lock_wait $string
216		446
217	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
218		448
219	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
220		450
221	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
222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
223	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
224	returned.	454	returned.
225		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
226	Lock names should begin with a unique identifier (for example, cf::map::find	459	Lock names should begin with a unique identifier (for example, cf::map::find
227	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
228		461
229	=cut	462	=item $locked = cf::lock_active $string
230		463
231	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;
232		469
233	sub lock_wait($) {	470	sub lock_wait($) {
234	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
235
236	# wait for lock, if any
237	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;
240	}
241	}	472	}
242		473
243	sub lock_acquire($) {	474	sub lock_acquire($) {
244	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
245		477
246	# wait, to be sure we are not locked	478	sub lock_active($) {
247	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
248
249	$LOCK{$key} = [];
250
251	Coro::guard {
252	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };
254	}
255	}	480	}
256		481
257	sub freeze_mainloop {	482	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
259		484
260	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
261	$TICK_WATCHER->stop;	486	}
262	$guard	487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
263	}	572	}
264		573
265	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
266		575
267	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		581
273	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
274		583
275	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
276		585
277	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
278	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
279	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.
280		590
281	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
282	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
283	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
284	fast or be very important.	594	fast or be very important.
…		…
286	=cut	596	=cut
287		597
288	sub sync_job(&) {	598	sub sync_job(&) {
289	my ($job) = @_;	599	my ($job) = @_;
290		600
291	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
292	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
294		606
295	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
296	# (but this is cancel-safe)	608
297	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
298		610
299	my $busy = 1;	611	my $busy = 1;
300	my @res;	612	my @res;
301		613
302	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
303	@res = eval { $job->() };	616	@res = eval { $job->() };
304	warn $@ if $@;	617	error $@ if $@;
305	undef $busy;	618	undef $busy;
306	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
307		620
308	while ($busy) {	621	while ($busy) {
309	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
310	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
311		632
312	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
313	} else {	634	} else {
314	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
315		636
…		…
335	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
336		657
337	$coro	658	$coro
338	}	659	}
339		660
340	sub write_runtime {	661	=item fork_call { }, @args
341	my $runtime = cf::localdir . "/runtime";
342		662
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
344	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.
345		667
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		669
350	aio_fsync $fh	670	sub post_fork {
351	and return;	671	reset_signals;
		672	}
352		673
353	close $fh	674	sub fork_call(&@) {
354	or return;	675	my ($cb, @args) = @_;
355		676
356	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
357	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
358		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 {
359	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 });
360	}	864	}
361		865
362	=back	866	=back
363		867
364	=cut	868	=cut
365		869
366	#############################################################################	870	#############################################################################
367		871
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492
493	#############################################################################
494
495	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
496		873
497	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
498	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")
499	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
500		877
501	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>
502	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
503	crossfire+).	880	Deliantra).
504		881
505	=over 4	882	=over 4
506		883
507	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
508		885
…		…
552	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
553		930
554	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
555	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
556		933
557	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
558	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.
559		936
560	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
561		938
562	=over 4	939	=over 4
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	1000	our @CB_MAP = ();
624		1001
625	my %attachment;	1002	my %attachment;
626		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
627	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
629		1012
630	use sort 'stable';	1013	use sort 'stable';
631		1014
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
666		1049
667	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		1054
672	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
674		1057
675	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
680		1063
681	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
682	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
683		1066
684	} elsif (ref $type) {	1067	} elsif (ref $type) {
685	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
686		1069
687	} else {	1070	} else {
688	shift @arg;	1071	shift @arg;
689	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
690	}	1073	}
691	}	1074	}
692	}	1075	}
693		1076
694	sub _object_attach {	1077	sub _object_attach {
…		…
704	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
705	}	1088	}
706		1089
707	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
708	} else {	1091	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
710	}	1093	}
711		1094
712	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
713	}	1096	}
714		1097
…		…
716	if (ref $_[0]) {	1099	if (ref $_[0]) {
717	_object_attach @_;	1100	_object_attach @_;
718	} else {	1101	} else {
719	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
720	}	1103	}
		1104	_recalc_want;
721	};	1105	};
722		1106
723	# all those should be optimised	1107	# all those should be optimised
724	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
729	reattach ($obj);	1113	reattach ($obj);
730	} else {	1114	} else {
731	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
732	}	1116	}
		1117	_recalc_want;
733	};	1118	};
734		1119
735	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
737		1122
…		…
752	";	1137	";
753	die if $@;	1138	die if $@;
754	}	1139	}
755		1140
756	our $override;	1141	our $override;
757	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?
758		1143
759	sub override {	1144	sub override {
760	$override = 1;	1145	$override = 1;
761	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
762	}	1147	}
763		1148
764	sub do_invoke {	1149	sub do_invoke {
765	my $event = shift;	1150	my $event = shift;
766	my $callbacks = shift;	1151	my $callbacks = shift;
767		1152
768	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
769		1154
770	local $override;	1155	local $override;
771		1156
772	for (@$callbacks) {	1157	for (@$callbacks) {
773	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
774		1159
775	if ($@) {	1160	if ($@) {
776	warn "$@";
777	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
778	override;	1162	override;
779	}	1163	}
780		1164
781	return 1 if $override;	1165	return 1 if $override;
782	}	1166	}
783		1167
784	0	1168	0
785	}	1169	}
786		1170
787	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
788		1172
789	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
790		1174
791	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
792		1176
793	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
794	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
795	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		1180
797	=back	1181	=back
798		1182
799	=cut	1183	=cut
800		1184
801	#############################################################################	1185	#############################################################################
802	# 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	}
803		1229
804	sub reattach {	1230	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
806	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
807		1236
808	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
809		1238
810	@$registry = ();	1239	@$registry = ();
811		1240
…		…
816	for (@$attach) {	1245	for (@$attach) {
817	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
818	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
819	}	1248	}
820	} else {	1249	} else {
821	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
822	}	1251	}
823	}	1252	}
824	}	1253	}
825		1254
826	cf::attachable->attach (	1255	cf::attachable->attach (
827	prio => -1000000,	1256	prio => -1000000,
828	on_instantiate => sub {	1257	on_instantiate => sub {
829	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
830		1259
831	$data = from_json $data;	1260	$data = decode_json $data;
832		1261
833	for (@$data) {	1262	for (@$data) {
834	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
835		1264
836	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
852	sub object_freezer_save {	1281	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
854		1283
855	sync_job {	1284	sync_job {
856	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
859		1290
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
862	aio_write $fh, 0, (length $$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;
863	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
864	close $fh;	1298	aio_close $fh;
865		1299
866	if (@$objs) {	1300	if (@$objs) {
867	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) {
868	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
870	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;
871	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
872	close $fh;	1309	aio_close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
874	}	1311	}
875	} else {	1312	} else {
876	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
877	}	1314	}
878		1315
879	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
880	} else {	1320	} else {
881	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
882	}	1322	}
883	} else {	1323	} else {
884	aio_unlink $filename;	1324	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
886	}	1326	}
887	}	1327	};
888	}	1328	}
889		1329
890	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
892		1332
…		…
904	or return;	1344	or return;
905		1345
906	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
908	or return;	1348	or return;
		1349
909	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
910	}	1352	}
911		1353
		1354	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
914	return ($data, $av);	1359	($data, $av)
915	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
916		1367
917	#############################################################################	1368	#############################################################################
918	# command handling &c	1369	# command handling &c
919		1370
920	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1385	}
935		1386
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1388
938	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.
939		1394
940	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
941	called.	1396	called.
942		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
943	=cut	1409	=cut
944		1410
945	sub register_extcmd {	1411	sub register_extcmd {
946	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
947		1413
948	$EXTCMD{$name} = $cb;	1414	$EXTCMD{$name} = $cb;
949	}	1415	}
950		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
		1424
951	cf::player->attach (	1425	cf::player->attach (
952	on_command => sub {	1426	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
954		1428
955	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
956	or return;	1430	or return;
957		1431
…		…
962	cf::override;	1436	cf::override;
963	},	1437	},
964	on_extcmd => sub {	1438	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
966		1440
967	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1442
969	if (ref $msg) {	1443	if (ref $msg) {
		1444	my ($type, $reply, @payload) =
		1445	"ARRAY" eq ref $msg
		1446	? @$msg
		1447	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1448
		1449	my @reply;
		1450
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
975	} else {	1458	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1460	}
978		1461
979	cf::override;	1462	cf::override;
980	},	1463	},
981	);	1464	);
982		1465
		1466	# "readahead" all extensions
983	sub load_extension {	1467	sub cache_extensions {
984	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
985		1469
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;	1473	}
990	$pkg = "ext::$pkg";	1474	};
991		1475
992	warn "loading '$path' into '$pkg'\n";	1476	$grp
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}	1477	}
1009		1478
1010	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1011	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1486	next unless -r $path;
1013	eval {	1487
1014	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	}
1015	1	1551	}
1016	} 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	}
1017	}	1564	};
1018	}	1565	}
1019		1566
1020	#############################################################################	1567	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1568
1023	*cf::mapsupport::on_clean = sub {	1569	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1570
1036	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
1037		1572
1038	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
1039		1574
1040	=cut	1575	=cut
1041		1576
1042	package cf::player;	1577	package cf::player;
1043		1578
…		…
1045		1580
1046	=head3 cf::player	1581	=head3 cf::player
1047		1582
1048	=over 4	1583	=over 4
1049		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
1050	=item cf::player::find $login	1599	=item cf::player::find $login
1051		1600
1052	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
1053		1602
1054	=cut	1603	=cut
1055		1604
1056	sub playerdir($) {	1605	sub playerdir($) {
1057	cf::localdir	1606	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1608	}
1063		1609
1064	sub path($) {	1610	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1612
1067	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
1068	}	1614	}
1069		1615
1070	sub find_active($) {	1616	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
1075		1621
1076	sub exists($) {	1622	sub exists($) {
1077	my ($login) = @_;	1623	my ($login) = @_;
1078		1624
1079	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
1081	}	1627	}
1082		1628
1083	sub find($) {	1629	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1631	my $login = $_[0];
1086		1632
1087	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
1088		1634
1089	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
1093	}	1652	}
1094	}	1653	}
1095	}	1654	}
		1655
		1656	cf::player->attach (
		1657	on_load => sub {
		1658	my ($pl, $path) = @_;
		1659
		1660	# restore slots saved in save, below
		1661	my $slots = delete $pl->{_slots};
		1662
		1663	$pl->ob->current_weapon ($slots->[0]);
		1664	$pl->combat_ob ($slots->[1]);
		1665	$pl->ranged_ob ($slots->[2]);
		1666	},
		1667	);
1096		1668
1097	sub save($) {	1669	sub save($) {
1098	my ($pl) = @_;	1670	my ($pl) = @_;
1099		1671
1100	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1105	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1106		1678
1107	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1109		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
1110	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1111	Coro::cede;	1688	cf::cede_to_tick;
1112	}	1689	}
1113		1690
1114	sub new($) {	1691	sub new($) {
1115	my ($login) = @_;	1692	my ($login) = @_;
1116		1693
…		…
1122	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1123		1700
1124	$self	1701	$self
1125	}	1702	}
1126		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
1127	=item $pl->quit_character	1714	=item $pl->quit_character
1128		1715
1129	Nukes the player without looking back. If logged in, the connection will	1716	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1131		1718
1132	=cut	1719	=cut
1133		1720
1134	sub quit_character {	1721	sub quit_character {
1135	my ($pl) = @_;	1722	my ($pl) = @_;
1136		1723
		1724	my $name = $pl->ob->name;
		1725
1137	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1139		1728
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1141	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1142	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1143	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1144		1737
1145	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
1150	IO::AIO::aio_rmtree $temp;	1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
1151	}	1764	}
1152		1765
1153	=item cf::player::list_logins	1766	=item cf::player::list_logins
1154		1767
1155	Returns am arrayref of all valid playernames in the system, can take a	1768	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1157		1770
1158	=cut	1771	=cut
1159		1772
1160	sub list_logins {	1773	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1775	or return [];
1163		1776
1164	my @logins;	1777	my @logins;
1165		1778
1166	for my $login (@$dirs) {	1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1170		1789
1171	utf8::decode $login;	1790	utf8::decode $login;
1172	push @logins, $login;	1791	push @logins, $login;
1173	}	1792	}
1174		1793
1175	\@logins	1794	\@logins
1176	}	1795	}
1177		1796
1178	=item $player->maps	1797	=item $player->maps
1179		1798
		1799	=item cf::player::maps $login
		1800
1180	Returns an arrayref of cf::path's of all maps that are private for this	1801	Returns an arrayref of map paths that are private for this
1181	player. May block.	1802	player. May block.
1182		1803
1183	=cut	1804	=cut
1184		1805
1185	sub maps($) {	1806	sub maps($) {
1186	my ($pl) = @_;	1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1810
1188	my $files = aio_readdir playerdir $pl	1811	my $files = aio_readdir playerdir $pl
1189	or return;	1812	or return;
1190		1813
1191	my @paths;	1814	my @paths;
…		…
1193	for (@$files) {	1816	for (@$files) {
1194	utf8::decode $_;	1817	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1818	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1819	next unless /^$PATH_SEP/o;
1197		1820
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1821	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1822	}
1200		1823
1201	\@paths	1824	\@paths
1202	}	1825	}
1203		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1205		1832
1206	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1207		1834
1208	=cut	1835	=cut
1209		1836
1210	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1212		1839
1213	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1841	}
1217		1842
1218	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
		1856
		1857	=over 4
		1858
		1859	=cut
		1860
		1861	package cf::region;
		1862
		1863	=item cf::region::find_by_path $path
		1864
		1865	Tries to decuce the likely region for a map knowing only its path.
		1866
		1867	=cut
		1868
		1869	sub find_by_path($) {
		1870	my ($path) = @_;
		1871
		1872	$path =~ s/^~[^\/]*//; # skip ~login
		1873
		1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
		1884	}
1219		1885
1220	=back	1886	=back
1221
1222		1887
1223	=head3 cf::map	1888	=head3 cf::map
1224		1889
1225	=over 4	1890	=over 4
1226		1891
…		…
1229	package cf::map;	1894	package cf::map;
1230		1895
1231	use Fcntl;	1896	use Fcntl;
1232	use Coro::AIO;	1897	use Coro::AIO;
1233		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1234	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1236		1905
1237	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($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 {
1238	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1239		1946
1240	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1241	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
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1242	$path,	1976	$path
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})
1254	}	1977	}
1255		1978
1256	# and all this just because we cannot iterate over	1979	sub new_from_path {
1257	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1258	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1259	my ($change) = @_;	2001	my ($self) = @_;
1260		2002
1261	$_->change_map_light ($change)	2003	$self
1262	for grep $_->outdoor, values %cf::MAP;
1263	}	2004	}
1264		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1265	sub try_load_header($) {	2056	sub load_header_from($) {
1266	my ($path) = @_;	2057	my ($self, $path) = @_;
1267		2058
1268	utf8::encode $path;	2059	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1270	or return;	2061	or return;
1271		2062
1272	my $map = cf::map::new	2063	$self->_load_header ($f)
1273	or return;	2064	or return;
1274		2065
1275	# for better error messages only, will be overwritten	2066	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	2067	$f->resolve_delayed_derefs;
1277		2068
1278	$map->load_header ($path)	2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	sub load_header_orig {
		2075	my ($self) = @_;
		2076
		2077	$self->load_header_from ($self->load_path)
		2078	}
		2079
		2080	sub load_header_temp {
		2081	my ($self) = @_;
		2082
		2083	$self->load_header_from ($self->save_path)
		2084	}
		2085
		2086	sub prepare_temp {
		2087	my ($self) = @_;
		2088
		2089	$self->last_access ((delete $self->{last_access})
		2090	|| $cf::RUNTIME); #d#
		2091	# safety
		2092	$self->{instantiate_time} = $cf::RUNTIME
		2093	if $self->{instantiate_time} > $cf::RUNTIME;
		2094	}
		2095
		2096	sub prepare_orig {
		2097	my ($self) = @_;
		2098
		2099	$self->{load_original} = 1;
		2100	$self->{instantiate_time} = $cf::RUNTIME;
		2101	$self->last_access ($cf::RUNTIME);
		2102	$self->instantiate;
		2103	}
		2104
		2105	sub load_header {
		2106	my ($self) = @_;
		2107
		2108	if ($self->load_header_temp) {
		2109	$self->prepare_temp;
		2110	} else {
		2111	$self->load_header_orig
1279	or return;	2112	or return;
		2113	$self->prepare_orig;
		2114	}
1280		2115
1281	$map->{load_path} = $path;	2116	$self->{deny_reset} = 1
		2117	if $self->no_reset;
1282		2118
1283	$map	2119	$self->default_region (cf::region::find_by_path $self->{path})
		2120	unless $self->default_region;
		2121
		2122	1
1284	}	2123	}
1285		2124
1286	sub find;	2125	sub find;
1287	sub find {	2126	sub find {
1288	my ($path, $origin) = @_;	2127	my ($path, $origin) = @_;
1289		2128
1290	#warn "find<$path,$origin>\n";#d#	2129	cf::cede_to_tick;
1291		2130
1292	$path = new cf::path $path, $origin && $origin->path;	2131	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		2132
1295	cf::lock_wait "map_find:$key";	2133	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1296
1297	$cf::MAP{$key} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	2134	my $guard2 = cf::lock_acquire "map_find:$path";
1299		2135
1300	# do it the slow way	2136	$cf::MAP{$path} || do {
1301	my $map = try_load_header $path->save_path;	2137	my $map = new_from_path cf::map $path
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	2138	or return;
1319		2139
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	2140	$map->{last_save} = $cf::RUNTIME;
1332		2141
1333	Coro::cede;	2142	$map->load_header
		2143	or return;
1334		2144
1335	if ($map->should_reset) {	2145	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2146	# doing this can freeze the server in a sync job, obviously
		2147	#$cf::WAIT_FOR_TICK->wait;
		2148	undef $guard2;
		2149	undef $guard1;
1336	$map->reset;	2150	$map->reset;
1337	undef $guard;
1338	$map = find $path	2151	return find $path;
1339	or return;
1340	}	2152	}
1341		2153
1342	$cf::MAP{$key} = $map	2154	$cf::MAP{$path} = $map
1343	}	2155	}
1344	}	2156	}
		2157
		2158	sub pre_load { }
		2159	#sub post_load { } # XS
1345		2160
1346	sub load {	2161	sub load {
1347	my ($self) = @_;	2162	my ($self) = @_;
1348		2163
		2164	local $self->{deny_reset} = 1; # loading can take a long time
		2165
1349	my $path = $self->{path};	2166	my $path = $self->{path};
		2167
		2168	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2169	my $guard = cf::lock_acquire "map_data:$path";
1351		2170
		2171	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	2172	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		2173
1354	$self->in_memory (cf::MAP_LOADING);	2174	$self->in_memory (cf::MAP_LOADING);
1355		2175
1356	$self->alloc;	2176	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	2177
		2178	$self->pre_load;
		2179	cf::cede_to_tick;
		2180
		2181	my $f = new_from_file cf::object::thawer $self->{load_path};
		2182	$f->skip_block;
		2183	$self->_load_objects ($f)
1358	or return;	2184	or return;
1359		2185
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2186	$self->post_load_original
1361	if delete $self->{load_original};	2187	if delete $self->{load_original};
1362		2188
1363	if (my $uniq = $path->uniq_path) {	2189	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	2190	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	2191	unless (aio_stat $uniq) {
		2192	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	2193	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	2194	$self->_load_objects ($f);
		2195	$f->resolve_delayed_derefs;
		2196	}
1368	}	2197	}
1369	}	2198	}
1370		2199
1371	Coro::cede;	2200	$f->resolve_delayed_derefs;
1372		2201
		2202	cf::cede_to_tick;
1373	# now do the right thing for maps	2203	# now do the right thing for maps
1374	$self->link_multipart_objects;	2204	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2205	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2206	unless $self->difficulty;
		2207	cf::cede_to_tick;
		2208
		2209	unless ($self->{deny_activate}) {
		2210	$self->decay_objects;
		2211	$self->fix_auto_apply;
		2212	$self->update_buttons;
		2213	cf::cede_to_tick;
1386	$self->activate;	2214	$self->activate;
1387	}	2215	}
1388		2216
1389	Coro::cede;	2217	$self->{last_save} = $cf::RUNTIME;
		2218	$self->last_access ($cf::RUNTIME);
1390		2219
1391	$self->in_memory (cf::MAP_IN_MEMORY);	2220	$self->in_memory (cf::MAP_ACTIVE);
		2221	}
		2222
		2223	$self->post_load;
		2224
		2225	1
		2226	}
		2227
		2228	# customize the map for a given player, i.e.
		2229	# return the _real_ map. used by e.g. per-player
		2230	# maps to change the path to ~playername/mappath
		2231	sub customise_for {
		2232	my ($self, $ob) = @_;
		2233
		2234	return find "~" . $ob->name . "/" . $self->{path}
		2235	if $self->per_player;
		2236
		2237	# return find "?party/" . $ob->name . "/" . $self->{path}
		2238	# if $self->per_party;
		2239
		2240	$self
1392	}	2241	}
1393		2242
1394	# find and load all maps in the 3x3 area around a map	2243	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	2244	sub load_neighbours {
1396	my ($map) = @_;	2245	my ($map) = @_;
1397		2246
1398	my @diag; # diagonal neighbours	2247	my @neigh; # diagonal neighbours
1399		2248
1400	for (0 .. 3) {	2249	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	2250	my $neigh = $map->tile_path ($_)
1402	or next;	2251	or next;
1403	$neigh = find $neigh, $map	2252	$neigh = find $neigh, $map
1404	or next;	2253	or next;
1405	$neigh->load;	2254	$neigh->load;
1406		2255
		2256	# now find the diagonal neighbours
		2257	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2258	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2259	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2260	}
1410		2261
1411	for (@diag) {	2262	for (grep defined $_->[0], @neigh) {
		2263	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2264	my $neigh = find $path, $origin
1413	or next;	2265	or next;
1414	$neigh->load;	2266	$neigh->load;
1415	}	2267	}
1416	}	2268	}
1417		2269
1418	sub find_sync {	2270	sub find_sync {
1419	my ($path, $origin) = @_;	2271	my ($path, $origin) = @_;
1420		2272
1421	cf::sync_job { find $path, $origin }	2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1422	}	2277	}
1423		2278
1424	sub do_load_sync {	2279	sub do_load_sync {
1425	my ($map) = @_;	2280	my ($map) = @_;
1426		2281
1427	cf::sync_job { $map->load };	2282	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2283	if $Coro::current == $Coro::main;
		2284
		2285	$map->load;
1428	}	2286	}
1429		2287
1430	our %MAP_PREFETCH;	2288	our %MAP_PREFETCH;
		2289	our $MAP_PREFETCHER = undef;
		2290
		2291	sub find_async {
		2292	my ($path, $origin, $load) = @_;
		2293
		2294	$path = normalise $path, $origin && $origin->{path};
		2295
		2296	if (my $map = $cf::MAP{$path}) {
		2297	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2298	}
		2299
		2300	$MAP_PREFETCH{$path} |= $load;
		2301
1431	our $MAP_PREFETCHER = Coro::async {	2302	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2303	$Coro::current->{desc} = "map prefetcher";
		2304
1433	while (%MAP_PREFETCH) {	2305	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2306	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2307	if (my $map = find $k) {
		2308	$map->load if $v;
		2309	}
		2310
1436	my $path = delete $MAP_PREFETCH{$key};	2311	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2312	}
1442	Coro::schedule;	2313	}
		2314	undef $MAP_PREFETCHER;
1443	}	2315	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2316	$MAP_PREFETCHER->prio (6);
1458		2317
1459	()	2318	()
		2319	}
		2320
		2321	# common code, used by both ->save and ->swapout
		2322	sub _save {
		2323	my ($self) = @_;
		2324
		2325	$self->{last_save} = $cf::RUNTIME;
		2326
		2327	return unless $self->dirty;
		2328
		2329	my $save = $self->save_path; utf8::encode $save;
		2330	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2331
		2332	$self->{load_path} = $save;
		2333
		2334	return if $self->{deny_save};
		2335
		2336	local $self->{last_access} = $self->last_access;#d#
		2337
		2338	cf::async {
		2339	$Coro::current->{desc} = "map player save";
		2340	$_->contr->save for $self->players;
		2341	};
		2342
		2343	cf::get_slot 0.02;
		2344
		2345	if ($uniq) {
		2346	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2347	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2348	} else {
		2349	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2350	}
1460	}	2351	}
1461		2352
1462	sub save {	2353	sub save {
1463	my ($self) = @_;	2354	my ($self) = @_;
1464		2355
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2356	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2357
1467	$self->{last_save} = $cf::RUNTIME;	2358	$self->_save;
1468
1469	return unless $self->dirty;
1470
1471	my $save = $self->{path}->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1473
1474	$self->{load_path} = $save;
1475
1476	return if $self->{deny_save};
1477
1478	local $self->{last_access} = $self->last_access;#d#
1479
1480	cf::async {
1481	$_->contr->save for $self->players;
1482	};
1483
1484	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}
1490	}	2359	}
1491		2360
1492	sub swap_out {	2361	sub swap_out {
1493	my ($self) = @_;	2362	my ($self) = @_;
1494		2363
1495	# save first because save cedes
1496	$self->save;
1497
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2364	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2365
		2366	return if $self->in_memory != cf::MAP_ACTIVE;
		2367	return if $self->{deny_save};
1500	return if $self->players;	2368	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;
1502	return if $self->{deny_save};
1503		2369
		2370	# first deactivate the map and "unlink" it from the core
		2371	$self->deactivate;
		2372	$_->clear_links_to ($self) for values %cf::MAP;
		2373	$self->in_memory (cf::MAP_SWAPPED);
		2374
		2375	# then atomically save
		2376	$self->_save;
		2377
		2378	# then free the map
1504	$self->clear;	2379	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2380	}
1507		2381
1508	sub reset_at {	2382	sub reset_at {
1509	my ($self) = @_;	2383	my ($self) = @_;
1510		2384
1511	# TODO: safety, remove and allow resettable per-player maps	2385	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2386	return 1e99 if $self->{deny_reset};
1514		2387
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2388	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2389	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2390
…		…
1522	my ($self) = @_;	2395	my ($self) = @_;
1523		2396
1524	$self->reset_at <= $cf::RUNTIME	2397	$self->reset_at <= $cf::RUNTIME
1525	}	2398	}
1526		2399
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2400	sub reset {
1549	my ($self) = @_;	2401	my ($self) = @_;
1550		2402
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2403	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2404
1553	return if $self->players;	2405	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2406
1556	warn "resetting map ", $self->path;#d#	2407	cf::trace "resetting map ", $self->path, "\n";
		2408
		2409	$self->in_memory (cf::MAP_SWAPPED);
		2410
		2411	# need to save uniques path
		2412	unless ($self->{deny_save}) {
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2416	if $uniq;
		2417	}
1557		2418
1558	delete $cf::MAP{$self->path};	2419	delete $cf::MAP{$self->path};
1559		2420
		2421	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2422	$_->clear_links_to ($self) for values %cf::MAP;
		2423	$self->clear;
1561		2424
1562	$self->unlink_save;	2425	$self->unlink_save;
1563	$self->destroy;	2426	$self->destroy;
1564	}	2427	}
1565		2428
1566	my $nuke_counter = "aaaa";	2429	my $nuke_counter = "aaaa";
1567		2430
1568	sub nuke {	2431	sub nuke {
1569	my ($self) = @_;	2432	my ($self) = @_;
1570		2433
		2434	{
		2435	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2436
		2437	delete $cf::MAP{$self->path};
		2438
		2439	$self->unlink_save;
		2440
		2441	bless $self, "cf::map::wrap";
		2442	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2443	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2444	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2445	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2446
		2447	$cf::MAP{$self->path} = $self;
		2448	}
		2449
1574	$self->reset; # polite request, might not happen	2450	$self->reset; # polite request, might not happen
1575	}	2451	}
1576		2452
1577	sub customise_for {	2453	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2454
1580	if ($map->per_player) {	2455	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2456	maps. May block.
		2457
		2458	=cut
		2459
		2460	sub tmp_maps() {
1582	}	2461	[
		2462	map {
		2463	utf8::decode $_;
		2464	/\.map$/
		2465	? normalise $_
		2466	: ()
		2467	} @{ aio_readdir $TMPDIR or [] }
		2468	]
		2469	}
1583		2470
1584	$map	2471	=item $maps = cf::map::random_maps
		2472
		2473	Returns an arrayref with all map paths of currently instantiated and saved
		2474	random maps. May block.
		2475
		2476	=cut
		2477
		2478	sub random_maps() {
		2479	[
		2480	map {
		2481	utf8::decode $_;
		2482	/\.map$/
		2483	? normalise "?random/$_"
		2484	: ()
		2485	} @{ aio_readdir $RANDOMDIR or [] }
		2486	]
1585	}	2487	}
1586		2488
1587	=item cf::map::unique_maps	2489	=item cf::map::unique_maps
1588		2490
1589	Returns an arrayref of cf::path's of all shared maps that have	2491	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2492	instantiated unique items. May block.
1591		2493
1592	=cut	2494	=cut
1593		2495
1594	sub unique_maps() {	2496	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2497	[
1596	or return;	2498	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2499	utf8::decode $_;
1602	next if /\.pst$/;	2500	s/\.map$//; # TODO future compatibility hack
1603	next unless /^$PATH_SEP/o;	2501	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1604		2502	? ()
1605	push @paths, new cf::path $_;	2503	: normalise $_
		2504	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2505	]
1607
1608	\@paths
1609	}	2506	}
1610		2507
1611	package cf;	2508	=item cf::map::static_maps
		2509
		2510	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2511	file in the shared directory excluding F</styles> and F</editor>). May
		2512	block.
		2513
		2514	=cut
		2515
		2516	sub static_maps() {
		2517	my @dirs = "";
		2518	my @maps;
		2519
		2520	while (@dirs) {
		2521	my $dir = shift @dirs;
		2522
		2523	next if $dir eq "/styles" || $dir eq "/editor";
		2524
		2525	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2526	or return;
		2527
		2528	for (@$files) {
		2529	s/\.map$// or next;
		2530	utf8::decode $_;
		2531	push @maps, "$dir/$_";
		2532	}
		2533
		2534	push @dirs, map "$dir/$_", @$dirs;
		2535	}
		2536
		2537	\@maps
		2538	}
1612		2539
1613	=back	2540	=back
1614		2541
1615	=head3 cf::object	2542	=head3 cf::object
1616		2543
…		…
1620		2547
1621	=over 4	2548	=over 4
1622		2549
1623	=item $ob->inv_recursive	2550	=item $ob->inv_recursive
1624		2551
1625	Returns the inventory of the object _and_ their inventories, recursively.	2552	Returns the inventory of the object I<and> their inventories, recursively,
		2553	but I<not> the object itself.
1626		2554
1627	=cut	2555	=cut
1628		2556
1629	sub inv_recursive_;	2557	sub inv_recursive_;
1630	sub inv_recursive_ {	2558	sub inv_recursive_ {
…		…
1633		2561
1634	sub inv_recursive {	2562	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2563	inv_recursive_ inv $_[0]
1636	}	2564	}
1637		2565
		2566	=item $ref = $ob->ref
		2567
		2568	Creates and returns a persistent reference to an object that can be stored as a string.
		2569
		2570	=item $ob = cf::object::deref ($refstring)
		2571
		2572	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2573	even if the object actually exists. May block.
		2574
		2575	=cut
		2576
		2577	sub deref {
		2578	my ($ref) = @_;
		2579
		2580	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2581	my ($uuid, $name) = ($1, $2);
		2582	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2583	or return;
		2584	$pl->ob->uuid eq $uuid
		2585	or return;
		2586
		2587	$pl->ob
		2588	} else {
		2589	warn "$ref: cannot resolve object reference\n";
		2590	undef
		2591	}
		2592	}
		2593
1638	package cf;	2594	package cf;
1639		2595
1640	=back	2596	=back
1641		2597
1642	=head3 cf::object::player	2598	=head3 cf::object::player
…		…
1648	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2604	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1649	can be C<undef>. Does the right thing when the player is currently in a	2605	can be C<undef>. Does the right thing when the player is currently in a
1650	dialogue with the given NPC character.	2606	dialogue with the given NPC character.
1651		2607
1652	=cut	2608	=cut
		2609
		2610	our $SAY_CHANNEL = {
		2611	id => "say",
		2612	title => "Map",
		2613	reply => "say ",
		2614	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2615	};
		2616
		2617	our $CHAT_CHANNEL = {
		2618	id => "chat",
		2619	title => "Chat",
		2620	reply => "chat ",
		2621	tooltip => "Player chat and shouts, global to the server.",
		2622	};
1653		2623
1654	# rough implementation of a future "reply" method that works	2624	# rough implementation of a future "reply" method that works
1655	# with dialog boxes.	2625	# with dialog boxes.
1656	#TODO: the first argument must go, split into a $npc->reply_to ( method	2626	#TODO: the first argument must go, split into a $npc->reply_to ( method
1657	sub cf::object::player::reply($$$;$) {	2627	sub cf::object::player::reply($$$;$) {
…		…
1659		2629
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2631
1662	if ($self->{record_replies}) {	2632	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2634
1664	} else {	2635	} else {
		2636	my $pl = $self->contr;
		2637
		2638	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2639	my $dialog = $pl->{npc_dialog};
		2640	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2641
		2642	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2643	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2644	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2645	}
1667	}	2646	}
		2647	}
		2648
		2649	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2650
		2651	=cut
		2652
		2653	sub cf::object::send_msg {
		2654	my $pl = shift->contr
		2655	or return;
		2656	$pl->send_msg (@_);
1668	}	2657	}
1669		2658
1670	=item $player_object->may ("access")	2659	=item $player_object->may ("access")
1671		2660
1672	Returns wether the given player is authorized to access resource "access"	2661	Returns wether the given player is authorized to access resource "access"
…		…
1685		2674
1686	=item $player_object->enter_link	2675	=item $player_object->enter_link
1687		2676
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2677	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2678
1690	The player should be reaosnably safe there for short amounts of time. You	2679	The player should be reasonably safe there for short amounts of time (e.g.
1691	I<MUST> call C<leave_link> as soon as possible, though.	2680	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2681	though, as the player cannot control the character while it is on the link
		2682	map.
		2683
		2684	Will never block.
1692		2685
1693	=item $player_object->leave_link ($map, $x, $y)	2686	=item $player_object->leave_link ($map, $x, $y)
1694		2687
1695	Moves the player out of the specila link map onto the given map. If the	2688	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2689	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2690	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2691	fails, to the emergency map position.
1699		2692
1700	Might block.	2693	Might block.
1701		2694
1702	=cut	2695	=cut
		2696
		2697	sub link_map {
		2698	unless ($LINK_MAP) {
		2699	$LINK_MAP = cf::map::find "{link}"
		2700	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2701	$LINK_MAP->load;
		2702	}
		2703
		2704	$LINK_MAP
		2705	}
1703		2706
1704	sub cf::object::player::enter_link {	2707	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2708	my ($self) = @_;
1706		2709
1707	$self->deactivate_recursive;	2710	$self->deactivate_recursive;
1708		2711
1709	return if $self->map == $LINK_MAP;	2712	++$self->{_link_recursion};
		2713
		2714	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2715
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2716	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2717	if $self->map && $self->map->{path} ne "{link}";
1713		2718
1714	$self->enter_map ($LINK_MAP, 20, 20);	2719	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1715	}	2720	}
1716		2721
1717	sub cf::object::player::leave_link {	2722	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2723	my ($self, $map, $x, $y) = @_;
		2724
		2725	return unless $self->contr->active;
1719		2726
1720	my $link_pos = delete $self->{_link_pos};	2727	my $link_pos = delete $self->{_link_pos};
1721		2728
1722	unless ($map) {	2729	unless ($map) {
1723	# restore original map position	2730	# restore original map position
…		…
1734	($x, $y) = (-1, -1)	2741	($x, $y) = (-1, -1)
1735	unless (defined $x) && (defined $y);	2742	unless (defined $x) && (defined $y);
1736		2743
1737	# use -1 or undef as default coordinates, not 0, 0	2744	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2745	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2746	if $x <= 0 && $y <= 0;
1740		2747
1741	$map->load;	2748	$map->load;
1742	$map->load_diag;	2749	$map->load_neighbours;
1743		2750
1744	return unless $self->contr->active;	2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1745	$self->activate_recursive;	2758	$self->activate_recursive;
1746	$self->enter_map ($map, $x, $y);
1747	}
1748
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},	2759	}
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2760
1763	# try to abort aborted map switching on player login :)	2761	}
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780		2762
1781	=item $player_object->goto ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1782		2764
		2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
1783	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1784		2777
1785	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2780
1788	$path = new cf::path $path;	2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2789
1790	$self->enter_link;	2790	$self->enter_link;
1791		2791
1792	(async {	2792	(async {
1793	my $map = cf::map::find $path->as_string;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
		2794
		2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path : undef;
		2816
		2817	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1795		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1800		2823
		2824	$map
		2825	};
		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1802	})->prio (1);	2838	})->prio (1);
1803	}	2839	}
1804		2840
1805	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1806		2842
…		…
1808		2844
1809	sub parse_random_map_params {	2845	sub parse_random_map_params {
1810	my ($spec) = @_;	2846	my ($spec) = @_;
1811		2847
1812	my $rmp = { # defaults	2848	my $rmp = { # defaults
1813	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1815	};	2853	};
1816		2854
1817	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1819		2857
…		…
1831	# that depends on the exit object	2869	# that depends on the exit object
1832		2870
1833	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1834		2872
1835	if ($exit->map) {	2873	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1840	}	2880	}
1841		2881
1842	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1843		2883
1844	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1845	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1846		2887
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1849		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1850	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1852	}	2899	}
1853	}	2900	}
1854		2901
1855	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
…		…
1858	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1859		2906
1860	$self->enter_link;	2907	$self->enter_link;
1861		2908
1862	(async {	2909	(async {
1863	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1864	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	# random map handling
		2916	{
		2917	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2918
1865	prepare_random_map $exit	2919	prepare_random_map $exit
1866	if $exit->slaying eq "/!";	2920	if $exit->slaying eq "/!";
		2921	}
1867		2922
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2923	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2924	my $x = $exit->stats->hp;
		2925	my $y = $exit->stats->sp;
1870		2926
		2927	$self->goto ($map, $x, $y);
		2928
		2929	# if exit is damned, update players death & WoR home-position
		2930	$self->contr->savebed ($map, $x, $y)
		2931	if $exit->flag (cf::FLAG_DAMNED);
		2932
1871	1;	2933	1
1872	}) {	2934	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2935	$self->message ("Something went wrong deep within the deliantra server. "
1874	. "I'll try to bring you back to the map you were before. "	2936	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2937	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2938	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2939
1878	warn "ERROR in enter_exit: $@";	2940	error "ERROR in enter_exit: $@";
1879	$self->leave_link;	2941	$self->leave_link;
1880	}	2942	}
1881	})->prio (1);	2943	})->prio (1);
1882	}	2944	}
1883		2945
…		…
1894		2956
1895	sub cf::client::send_drawinfo {	2957	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2958	my ($self, $text, $flags) = @_;
1897		2959
1898	utf8::encode $text;	2960	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2961	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2962	}
1901		2963
		2964	=item $client->send_big_packet ($pkt)
		2965
		2966	Like C<send_packet>, but tries to compress large packets, and fragments
		2967	them as required.
		2968
		2969	=cut
		2970
		2971	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2972
		2973	sub cf::client::send_big_packet {
		2974	my ($self, $pkt) = @_;
		2975
		2976	# try lzf for large packets
		2977	$pkt = "lzf " . Compress::LZF::compress $pkt
		2978	if 1024 <= length $pkt and $self->{can_lzf};
		2979
		2980	# split very large packets
		2981	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2982	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2983	$pkt = "frag";
		2984	}
		2985
		2986	$self->send_packet ($pkt);
		2987	}
		2988
		2989	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2990
		2991	Send a drawinfo or msg packet to the client, formatting the msg for the
		2992	client if neccessary. C<$type> should be a string identifying the type of
		2993	the message, with C<log> being the default. If C<$color> is negative, suppress
		2994	the message unless the client supports the msg packet.
		2995
		2996	=cut
		2997
		2998	# non-persistent channels (usually the info channel)
		2999	our %CHANNEL = (
		3000	"c/motd" => {
		3001	id => "infobox",
		3002	title => "MOTD",
		3003	reply => undef,
		3004	tooltip => "The message of the day",
		3005	},
		3006	"c/identify" => {
		3007	id => "infobox",
		3008	title => "Identify",
		3009	reply => undef,
		3010	tooltip => "Items recently identified",
		3011	},
		3012	"c/examine" => {
		3013	id => "infobox",
		3014	title => "Examine",
		3015	reply => undef,
		3016	tooltip => "Signs and other items you examined",
		3017	},
		3018	"c/shopinfo" => {
		3019	id => "infobox",
		3020	title => "Shop Info",
		3021	reply => undef,
		3022	tooltip => "What your bargaining skill tells you about the shop",
		3023	},
		3024	"c/book" => {
		3025	id => "infobox",
		3026	title => "Book",
		3027	reply => undef,
		3028	tooltip => "The contents of a note or book",
		3029	},
		3030	"c/lookat" => {
		3031	id => "infobox",
		3032	title => "Look",
		3033	reply => undef,
		3034	tooltip => "What you saw there",
		3035	},
		3036	"c/who" => {
		3037	id => "infobox",
		3038	title => "Players",
		3039	reply => undef,
		3040	tooltip => "Shows players who are currently online",
		3041	},
		3042	"c/body" => {
		3043	id => "infobox",
		3044	title => "Body Parts",
		3045	reply => undef,
		3046	tooltip => "Shows which body parts you posess and are available",
		3047	},
		3048	"c/statistics" => {
		3049	id => "infobox",
		3050	title => "Statistics",
		3051	reply => undef,
		3052	tooltip => "Shows your primary statistics",
		3053	},
		3054	"c/skills" => {
		3055	id => "infobox",
		3056	title => "Skills",
		3057	reply => undef,
		3058	tooltip => "Shows your experience per skill and item power",
		3059	},
		3060	"c/shopitems" => {
		3061	id => "infobox",
		3062	title => "Shop Items",
		3063	reply => undef,
		3064	tooltip => "Shows the items currently for sale in this shop",
		3065	},
		3066	"c/resistances" => {
		3067	id => "infobox",
		3068	title => "Resistances",
		3069	reply => undef,
		3070	tooltip => "Shows your resistances",
		3071	},
		3072	"c/pets" => {
		3073	id => "infobox",
		3074	title => "Pets",
		3075	reply => undef,
		3076	tooltip => "Shows information abotu your pets/a specific pet",
		3077	},
		3078	"c/perceiveself" => {
		3079	id => "infobox",
		3080	title => "Perceive Self",
		3081	reply => undef,
		3082	tooltip => "You gained detailed knowledge about yourself",
		3083	},
		3084	"c/uptime" => {
		3085	id => "infobox",
		3086	title => "Uptime",
		3087	reply => undef,
		3088	tooltip => "How long the server has been running since last restart",
		3089	},
		3090	"c/mapinfo" => {
		3091	id => "infobox",
		3092	title => "Map Info",
		3093	reply => undef,
		3094	tooltip => "Information related to the maps",
		3095	},
		3096	"c/party" => {
		3097	id => "party",
		3098	title => "Party",
		3099	reply => "gsay ",
		3100	tooltip => "Messages and chat related to your party",
		3101	},
		3102	"c/death" => {
		3103	id => "death",
		3104	title => "Death",
		3105	reply => undef,
		3106	tooltip => "Reason for and more info about your most recent death",
		3107	},
		3108	"c/say" => $SAY_CHANNEL,
		3109	"c/chat" => $CHAT_CHANNEL,
		3110	);
		3111
		3112	sub cf::client::send_msg {
		3113	my ($self, $channel, $msg, $color, @extra) = @_;
		3114
		3115	$msg = $self->pl->expand_cfpod ($msg)
		3116	unless $color & cf::NDI_VERBATIM;
		3117
		3118	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3119
		3120	# check predefined channels, for the benefit of C
		3121	if ($CHANNEL{$channel}) {
		3122	$channel = $CHANNEL{$channel};
		3123
		3124	$self->ext_msg (channel_info => $channel);
		3125	$channel = $channel->{id};
		3126
		3127	} elsif (ref $channel) {
		3128	# send meta info to client, if not yet sent
		3129	unless (exists $self->{channel}{$channel->{id}}) {
		3130	$self->{channel}{$channel->{id}} = $channel;
		3131	$self->ext_msg (channel_info => $channel);
		3132	}
		3133
		3134	$channel = $channel->{id};
		3135	}
		3136
		3137	return unless @extra || length $msg;
		3138
		3139	# default colour, mask it out
		3140	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3141	if $color & cf::NDI_DEF;
		3142
		3143	my $pkt = "msg "
		3144	. $self->{json_coder}->encode (
		3145	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3146	);
		3147
		3148	$self->send_big_packet ($pkt);
		3149	}
		3150
		3151	=item $client->ext_msg ($type, @msg)
		3152
		3153	Sends an ext event to the client.
		3154
		3155	=cut
		3156
		3157	sub cf::client::ext_msg($$@) {
		3158	my ($self, $type, @msg) = @_;
		3159
		3160	if ($self->extcmd == 2) {
		3161	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3162	} elsif ($self->extcmd == 1) { # TODO: remove
		3163	push @msg, msgtype => "event_$type";
		3164	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3165	}
		3166	}
		3167
		3168	=item $client->ext_reply ($msgid, @msg)
		3169
		3170	Sends an ext reply to the client.
		3171
		3172	=cut
		3173
		3174	sub cf::client::ext_reply($$@) {
		3175	my ($self, $id, @msg) = @_;
		3176
		3177	if ($self->extcmd == 2) {
		3178	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3179	} elsif ($self->extcmd == 1) {
		3180	#TODO: version 1, remove
		3181	unshift @msg, msgtype => "reply", msgid => $id;
		3182	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3183	}
		3184	}
1902		3185
1903	=item $success = $client->query ($flags, "text", \&cb)	3186	=item $success = $client->query ($flags, "text", \&cb)
1904		3187
1905	Queues a query to the client, calling the given callback with	3188	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3190	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		3191
1909	Queries can fail, so check the return code. Or don't, as queries will become	3192	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	3193	become reliable at some point in the future.
1911		3194
1912	=cut	3195	=cut
1913		3196
1914	sub cf::client::query {	3197	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	3198	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	3206	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		3208
1926	$self->send_packet ($self->{query_queue}[0][0])	3209	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	3210	if @{ $self->{query_queue} } == 1;
		3211
		3212	1
1928	}	3213	}
1929		3214
1930	cf::client->attach (	3215	cf::client->attach (
		3216	on_connect => sub {
		3217	my ($ns) = @_;
		3218
		3219	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3220	},
1931	on_reply => sub {	3221	on_reply => sub {
1932	my ($ns, $msg) = @_;	3222	my ($ns, $msg) = @_;
1933		3223
1934	# this weird shuffling is so that direct followup queries	3224	# this weird shuffling is so that direct followup queries
1935	# get handled first	3225	# get handled first
1936	my $queue = delete $ns->{query_queue}	3226	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	3227	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		3228
1939	(shift @$queue)->[1]->($msg);	3229	(shift @$queue)->[1]->($msg);
		3230	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		3231
1941	push @{ $ns->{query_queue} }, @$queue;	3232	push @{ $ns->{query_queue} }, @$queue;
1942		3233
1943	if (@{ $ns->{query_queue} } == @$queue) {	3234	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	3235	if (@$queue) {
…		…
1946	} else {	3237	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3238	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	3239	}
1949	}	3240	}
1950	},	3241	},
		3242	on_exticmd => sub {
		3243	my ($ns, $buf) = @_;
		3244
		3245	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3246
		3247	if (ref $msg) {
		3248	my ($type, $reply, @payload) =
		3249	"ARRAY" eq ref $msg
		3250	? @$msg
		3251	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3252
		3253	my @reply;
		3254
		3255	if (my $cb = $EXTICMD{$type}) {
		3256	@reply = $cb->($ns, @payload);
		3257	}
		3258
		3259	$ns->ext_reply ($reply, @reply)
		3260	if $reply;
		3261
		3262	} else {
		3263	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3264	}
		3265
		3266	cf::override;
		3267	},
1951	);	3268	);
1952		3269
1953	=item $client->async (\&cb)	3270	=item $client->async (\&cb)
1954		3271
1955	Create a new coroutine, running the specified callback. The coroutine will	3272	Create a new coroutine, running the specified callback. The coroutine will
…		…
1971		3288
1972	$coro	3289	$coro
1973	}	3290	}
1974		3291
1975	cf::client->attach (	3292	cf::client->attach (
1976	on_destroy => sub {	3293	on_client_destroy => sub {
1977	my ($ns) = @_;	3294	my ($ns) = @_;
1978		3295
1979	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3296	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1980	},	3297	},
1981	);	3298	);
…		…
1996	our $safe = new Safe "safe";	3313	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	3314	our $safe_hole = new Safe::Hole;
1998		3315
1999	$SIG{FPE} = 'IGNORE';	3316	$SIG{FPE} = 'IGNORE';
2000		3317
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3318	$safe->permit_only (Opcode::opset qw(
		3319	:base_core :base_mem :base_orig :base_math :base_loop
		3320	grepstart grepwhile mapstart mapwhile
		3321	sort time
		3322	));
2002		3323
2003	# here we export the classes and methods available to script code	3324	# here we export the classes and methods available to script code
2004		3325
2005	=pod	3326	=pod
2006		3327
2007	The following fucntions and emthods are available within a safe environment:	3328	The following functions and methods are available within a safe environment:
2008		3329
2009	cf::object contr pay_amount pay_player map	3330	cf::object
		3331	contr pay_amount pay_player map x y force_find force_add destroy
		3332	insert remove name archname title slaying race decrease split
		3333	value
		3334
2010	cf::object::player player	3335	cf::object::player
2011	cf::player peaceful	3336	player
2012	cf::map trigger	3337
		3338	cf::player
		3339	peaceful
		3340
		3341	cf::map
		3342	trigger
2013		3343
2014	=cut	3344	=cut
2015		3345
2016	for (	3346	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	3347	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3348	insert remove inv nrof name archname title slaying race
		3349	decrease split destroy change_exp value msg lore send_msg)],
2018	["cf::object::player" => qw(player)],	3350	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	3351	["cf::player" => qw(peaceful send_msg)],
2020	["cf::map" => qw(trigger)],	3352	["cf::map" => qw(trigger)],
2021	) {	3353	) {
2022	no strict 'refs';
2023	my ($pkg, @funs) = @$_;	3354	my ($pkg, @funs) = @$_;
2024	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3355	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2025	for @funs;	3356	for @funs;
2026	}	3357	}
2027		3358
…		…
2042		3373
2043	my $qcode = $code;	3374	my $qcode = $code;
2044	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3375	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2045	$qcode =~ s/\n/\\n/g;	3376	$qcode =~ s/\n/\\n/g;
2046		3377
		3378	%vars = (_dummy => 0) unless %vars;
		3379
		3380	my @res;
2047	local $_;	3381	local $_;
2048	local @safe::cf::_safe_eval_args = values %vars;
2049		3382
2050	my $eval =	3383	my $eval =
2051	"do {\n"	3384	"do {\n"
2052	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3385	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2053	. "#line 0 \"{$qcode}\"\n"	3386	. "#line 0 \"{$qcode}\"\n"
2054	. $code	3387	. $code
2055	. "\n}"	3388	. "\n}"
2056	;	3389	;
2057		3390
		3391	if ($CFG{safe_eval}) {
2058	sub_generation_inc;	3392	sub_generation_inc;
		3393	local @safe::cf::_safe_eval_args = values %vars;
2059	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3394	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2060	sub_generation_inc;	3395	sub_generation_inc;
		3396	} else {
		3397	local @cf::_safe_eval_args = values %vars;
		3398	@res = wantarray ? eval eval : scalar eval $eval;
		3399	}
2061		3400
2062	if ($@) {	3401	if ($@) {
2063	warn "$@";	3402	warn "$@",
2064	warn "while executing safe code '$code'\n";	3403	"while executing safe code '$code'\n",
2065	warn "with arguments " . (join " ", %vars) . "\n";	3404	"with arguments " . (join " ", %vars) . "\n";
2066	}	3405	}
2067		3406
2068	wantarray ? @res : $res[0]	3407	wantarray ? @res : $res[0]
2069	}	3408	}
2070		3409
…		…
2084	=cut	3423	=cut
2085		3424
2086	sub register_script_function {	3425	sub register_script_function {
2087	my ($fun, $cb) = @_;	3426	my ($fun, $cb) = @_;
2088		3427
2089	no strict 'refs';	3428	$fun = "safe::$fun" if $CFG{safe_eval};
2090	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3429	*$fun = $safe_hole->wrap ($cb);
2091	}	3430	}
2092		3431
2093	=back	3432	=back
2094		3433
2095	=cut	3434	=cut
2096		3435
2097	#############################################################################	3436	#############################################################################
		3437	# the server's init and main functions
2098		3438
2099	=head2 EXTENSION DATABASE SUPPORT	3439	sub load_facedata($) {
		3440	my ($path) = @_;
2100		3441
2101	Crossfire maintains a very simple database for extension use. It can	3442	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	3443	# for this (global event?)
2103	excludes objects.	3444	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		3445
2105	The parameter C<$family> should best start with the name of the extension	3446	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		3447
2108	=over 4	3448	trace "loading facedata from $path\n";
2109		3449
2110	=item $hashref = cf::db_get $family	3450	my $facedata = decode_storable load_file $path;
2111		3451
2112	Return a hashref for use by the extension C<$family>, which can be	3452	$facedata->{version} == 2
2113	modified. After modifications, you have to call C<cf::db_dirty> or	3453	or cf::cleanup "$path: version mismatch, cannot proceed.";
2114	C<cf::db_sync>.
2115		3454
2116	=item $value = cf::db_get $family => $key	3455	# patch in the exptable
2117		3456	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2118	Returns a single value from the database	3457	$facedata->{resource}{"res/exp_table"} = {
2119		3458	type => FT_RSRC,
2120	=item cf::db_put $family => $hashref	3459	data => $exp_table,
2121		3460	hash => (Digest::MD5::md5 $exp_table),
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}
2148
2149	my $pid;
2150
2151	sub db_save() {
2152	waitpid $pid, 0 if $pid;
2153	if (0 == ($pid = fork)) {
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	3461	};
		3462	cf::cede_to_tick;
2171		3463
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3464	{
		3465	my $faces = $facedata->{faceinfo};
2176		3466
2177	sub db_get($;$) {	3467	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3468	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182		3469
2183	sub db_put($$;$) {	3470	cf::face::set_visibility $idx, $info->{visibility};
2184	if (@_ >= 3) {	3471	cf::face::set_magicmap $idx, $info->{magicmap};
2185	$DB->{$_[0]}{$_[1]} = $_[2];	3472	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2186	} else {	3473	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2187	$DB->{$_[0]} = $_[1];	3474	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2188	}
2189	db_dirty;
2190	}
2191		3475
2192	cf::global->attach (	3476	cf::cede_to_tick;
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3477	}
2197	);
2198	}
2199		3478
2200	#############################################################################	3479	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3480	next unless $info->{smooth};
2202		3481
2203	sub cfg_load {	3482	my $idx = cf::face::find $face
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3483	or next;
2205	or return;
2206		3484
2207	local $/;	3485	if (my $smooth = cf::face::find $info->{smooth}) {
2208	*CFG = YAML::Syck::Load <$fh>;	3486	cf::face::set_smooth $idx, $smooth;
		3487	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3488	} else {
		3489	error "smooth face '$info->{smooth}' not found for face '$face'";
		3490	}
2209		3491
		3492	cf::cede_to_tick;
		3493	}
		3494	}
		3495
		3496	{
		3497	my $anims = $facedata->{animinfo};
		3498
		3499	while (my ($anim, $info) = each %$anims) {
		3500	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3501	cf::cede_to_tick;
		3502	}
		3503
		3504	cf::anim::invalidate_all; # d'oh
		3505	}
		3506
		3507	{
		3508	my $res = $facedata->{resource};
		3509
		3510	while (my ($name, $info) = each %$res) {
		3511	if (defined $info->{type}) {
		3512	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3513
		3514	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3515	cf::face::set_type $idx, $info->{type};
		3516	} else {
		3517	$RESOURCE{$name} = $info; # unused
		3518	}
		3519
		3520	cf::cede_to_tick;
		3521	}
		3522	}
		3523
		3524	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3525
		3526	1
		3527	}
		3528
		3529	register_exticmd fx_want => sub {
		3530	my ($ns, $want) = @_;
		3531
		3532	while (my ($k, $v) = each %$want) {
		3533	$ns->fx_want ($k, $v);
		3534	}
		3535	};
		3536
		3537	sub load_resource_file($) {
		3538	my $guard = lock_acquire "load_resource_file";
		3539
		3540	my $status = load_resource_file_ $_[0];
		3541	get_slot 0.1, 100;
		3542	cf::arch::commit_load;
		3543
		3544	$status
		3545	}
		3546
		3547	sub reload_regions {
		3548	# HACK to clear player env face cache, we need some signal framework
		3549	# for this (global event?)
		3550	%ext::player_env::MUSIC_FACE_CACHE = ();
		3551
		3552	load_resource_file "$MAPDIR/regions"
		3553	or die "unable to load regions file\n";
		3554
		3555	for (cf::region::list) {
		3556	$_->{match} = qr/$_->{match}/
		3557	if exists $_->{match};
		3558	}
		3559	}
		3560
		3561	sub reload_facedata {
		3562	load_facedata "$DATADIR/facedata"
		3563	or die "unable to load facedata\n";
		3564	}
		3565
		3566	sub reload_archetypes {
		3567	load_resource_file "$DATADIR/archetypes"
		3568	or die "unable to load archetypes\n";
		3569	}
		3570
		3571	sub reload_treasures {
		3572	load_resource_file "$DATADIR/treasures"
		3573	or die "unable to load treasurelists\n";
		3574	}
		3575
		3576	sub reload_sound {
		3577	trace "loading sound config from $DATADIR/sound\n";
		3578
		3579	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3580
		3581	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3582	my $sound = $soundconf->{compat}[$_]
		3583	or next;
		3584
		3585	my $face = cf::face::find "sound/$sound->[1]";
		3586	cf::sound::set $sound->[0] => $face;
		3587	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3588	}
		3589
		3590	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3591	my $face = cf::face::find "sound/$v";
		3592	cf::sound::set $k => $face;
		3593	}
		3594	}
		3595
		3596	sub reload_resources {
		3597	trace "reloading resource files...\n";
		3598
		3599	reload_exp_table;
		3600	reload_materials;
		3601	reload_facedata;
		3602	reload_sound;
		3603	reload_archetypes;
		3604	reload_regions;
		3605	reload_treasures;
		3606
		3607	trace "finished reloading resource files\n";
		3608	}
		3609
		3610	sub reload_config {
		3611	trace "reloading config file...\n";
		3612
		3613	my $config = load_file "$CONFDIR/config";
		3614	utf8::decode $config;
		3615	*CFG = decode_yaml $config;
		3616
2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3617	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2211		3618
2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3619	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3620	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2214		3621
2215	if (exists $CFG{mlockall}) {	3622	if (exists $CFG{mlockall}) {
…		…
2219	};	3626	};
2220	warn $@ if $@;	3627	warn $@ if $@;
2221	}	3628	}
2222	}	3629	}
2223		3630
		3631	sub pidfile() {
		3632	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3633	or die "$PIDFILE: $!";
		3634	flock $fh, &Fcntl::LOCK_EX
		3635	or die "$PIDFILE: flock: $!";
		3636	$fh
		3637	}
		3638
		3639	# make sure only one server instance is running at any one time
		3640	sub atomic {
		3641	my $fh = pidfile;
		3642
		3643	my $pid = <$fh>;
		3644	kill 9, $pid if $pid > 0;
		3645
		3646	seek $fh, 0, 0;
		3647	print $fh $$;
		3648	}
		3649
		3650	sub main_loop {
		3651	trace "EV::loop starting\n";
		3652	if (1) {
		3653	EV::loop;
		3654	}
		3655	trace "EV::loop returned\n";
		3656	goto &main_loop unless $REALLY_UNLOOP;
		3657	}
		3658
2224	sub main {	3659	sub main {
		3660	cf::init_globals; # initialise logging
		3661
		3662	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3663	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3664	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3665	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3666
		3667	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3668
2225	# we must not ever block the main coroutine	3669	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3670	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3671	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2228	async { Event::one_event };	3672	(async {
		3673	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3674	EV::loop EV::LOOP_ONESHOT;
		3675	})->prio (Coro::PRIO_MAX);
2229	};	3676	};
2230		3677
2231	cfg_load;	3678	evthread_start IO::AIO::poll_fileno;
2232	db_load;	3679
		3680	cf::sync_job {
		3681	cf::incloader::init ();
		3682
		3683	cf::init_anim;
		3684	cf::init_attackmess;
		3685	cf::init_dynamic;
		3686
		3687	cf::load_settings;
		3688
		3689	reload_resources;
		3690	reload_config;
		3691	db_init;
		3692
		3693	cf::init_uuid;
		3694	cf::init_signals;
		3695	cf::init_skills;
		3696
		3697	cf::init_beforeplay;
		3698
		3699	atomic;
		3700
2233	load_extensions;	3701	load_extensions;
2234	Event::loop;	3702
		3703	utime time, time, $RUNTIMEFILE;
		3704
		3705	# no (long-running) fork's whatsoever before this point(!)
		3706	use POSIX ();
		3707	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3708
		3709	cf::_post_init 0;
		3710	};
		3711
		3712	cf::object::thawer::errors_are_fatal 0;
		3713	info "parse errors in files are no longer fatal from this point on.\n";
		3714
		3715	my $free_main; $free_main = EV::idle sub {
		3716	undef $free_main;
		3717	undef &main; # free gobs of memory :)
		3718	};
		3719
		3720	goto &main_loop;
2235	}	3721	}
2236		3722
2237	#############################################################################	3723	#############################################################################
2238	# initialisation and cleanup	3724	# initialisation and cleanup
2239		3725
2240	# install some emergency cleanup handlers	3726	# install some emergency cleanup handlers
2241	BEGIN {	3727	BEGIN {
		3728	our %SIGWATCHER = ();
2242	for my $signal (qw(INT HUP TERM)) {	3729	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3730	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2244	data => WF_AUTOCANCEL,
2245	signal => $signal,
2246	cb => sub {
2247	cf::cleanup "SIG$signal";	3731	cf::cleanup "SIG$signal";
2248	},
2249	);	3732	};
		3733	}
		3734	}
		3735
		3736	sub write_runtime_sync {
		3737	my $t0 = AE::time;
		3738
		3739	# first touch the runtime file to show we are still running:
		3740	# the fsync below can take a very very long time.
		3741
		3742	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3743
		3744	my $guard = cf::lock_acquire "write_runtime";
		3745
		3746	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3747	or return;
		3748
		3749	my $value = $cf::RUNTIME + 90 + 10;
		3750	# 10 is the runtime save interval, for a monotonic clock
		3751	# 60 allows for the watchdog to kill the server.
		3752
		3753	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3754	and return;
		3755
		3756	# always fsync - this file is important
		3757	aio_fsync $fh
		3758	and return;
		3759
		3760	# touch it again to show we are up-to-date
		3761	aio_utime $fh, undef, undef;
		3762
		3763	close $fh
		3764	or return;
		3765
		3766	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3767	and return;
		3768
		3769	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3770
2250	}	3771	1
		3772	}
		3773
		3774	our $uuid_lock;
		3775	our $uuid_skip;
		3776
		3777	sub write_uuid_sync($) {
		3778	$uuid_skip ||= $_[0];
		3779
		3780	return if $uuid_lock;
		3781	local $uuid_lock = 1;
		3782
		3783	my $uuid = "$LOCALDIR/uuid";
		3784
		3785	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3786	or return;
		3787
		3788	my $value = uuid_seq uuid_cur;
		3789
		3790	unless ($value) {
		3791	info "cowardly refusing to write zero uuid value!\n";
		3792	return;
		3793	}
		3794
		3795	my $value = uuid_str $value + $uuid_skip;
		3796	$uuid_skip = 0;
		3797
		3798	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3799	and return;
		3800
		3801	# always fsync - this file is important
		3802	aio_fsync $fh
		3803	and return;
		3804
		3805	close $fh
		3806	or return;
		3807
		3808	aio_rename "$uuid~", $uuid
		3809	and return;
		3810
		3811	trace "uuid file written ($value).\n";
		3812
		3813	1
		3814
		3815	}
		3816
		3817	sub write_uuid($$) {
		3818	my ($skip, $sync) = @_;
		3819
		3820	$sync ? write_uuid_sync $skip
		3821	: async { write_uuid_sync $skip };
2251	}	3822	}
2252		3823
2253	sub emergency_save() {	3824	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3825	my $freeze_guard = cf::freeze_mainloop;
2255		3826
2256	warn "enter emergency perl save\n";	3827	info "emergency_perl_save: enter\n";
		3828
		3829	# this is a trade-off: we want to be very quick here, so
		3830	# save all maps without fsync, and later call a global sync
		3831	# (which in turn might be very very slow)
		3832	local $USE_FSYNC = 0;
2257		3833
2258	cf::sync_job {	3834	cf::sync_job {
		3835	cf::write_runtime_sync; # external watchdog should not bark
		3836
2259	# use a peculiar iteration method to avoid tripping on perl	3837	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3838	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3839	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3840	info "emergency_perl_save: begin player save\n";
2263	for my $login (keys %cf::PLAYER) {	3841	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3842	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3843	$pl->valid or next;
		3844	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	3845	$pl->save;
2267	}	3846	}
2268	warn "end emergency player save\n";	3847	info "emergency_perl_save: end player save\n";
2269		3848
2270	warn "begin emergency map save\n";	3849	cf::write_runtime_sync; # external watchdog should not bark
		3850
		3851	info "emergency_perl_save: begin map save\n";
2271	for my $path (keys %cf::MAP) {	3852	for my $path (keys %cf::MAP) {
2272	my $map = $cf::MAP{$path} or next;	3853	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3854	$map->valid or next;
2274	$map->save;	3855	$map->save;
2275	}	3856	}
2276	warn "end emergency map save\n";	3857	info "emergency_perl_save: end map save\n";
		3858
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
		3861	info "emergency_perl_save: begin database checkpoint\n";
		3862	BDB::db_env_txn_checkpoint $DB_ENV;
		3863	info "emergency_perl_save: end database checkpoint\n";
		3864
		3865	info "emergency_perl_save: begin write uuid\n";
		3866	write_uuid_sync 1;
		3867	info "emergency_perl_save: end write uuid\n";
		3868
		3869	cf::write_runtime_sync; # external watchdog should not bark
		3870
		3871	trace "emergency_perl_save: syncing database to disk";
		3872	BDB::db_env_txn_checkpoint $DB_ENV;
		3873
		3874	info "emergency_perl_save: starting sync\n";
		3875	IO::AIO::aio_sync sub {
		3876	info "emergency_perl_save: finished sync\n";
		3877	};
		3878
		3879	cf::write_runtime_sync; # external watchdog should not bark
		3880
		3881	trace "emergency_perl_save: flushing outstanding aio requests";
		3882	while (IO::AIO::nreqs || BDB::nreqs) {
		3883	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3884	}
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
2277	};	3887	};
2278		3888
2279	warn "leave emergency perl save\n";	3889	info "emergency_perl_save: leave\n";
2280	}	3890	}
2281		3891
		3892	sub post_cleanup {
		3893	my ($make_core) = @_;
		3894
		3895	IO::AIO::flush;
		3896
		3897	error Carp::longmess "post_cleanup backtrace"
		3898	if $make_core;
		3899
		3900	my $fh = pidfile;
		3901	unlink $PIDFILE if <$fh> == $$;
		3902	}
		3903
		3904	# a safer delete_package, copied from Symbol
		3905	sub clear_package($) {
		3906	my $pkg = shift;
		3907
		3908	# expand to full symbol table name if needed
		3909	unless ($pkg =~ /^main::.*::$/) {
		3910	$pkg = "main$pkg" if $pkg =~ /^::/;
		3911	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3912	$pkg .= '::' unless $pkg =~ /::$/;
		3913	}
		3914
		3915	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3916	my $stem_symtab = *{$stem}{HASH};
		3917
		3918	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3919	or return;
		3920
		3921	# clear all symbols
		3922	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3923	for my $name (keys %$leaf_symtab) {
		3924	_gv_clear *{"$pkg$name"};
		3925	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3926	}
		3927	}
		3928
2282	sub reload() {	3929	sub do_reload_perl() {
2283	# can/must only be called in main	3930	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3931	unless (in_main) {
2285	warn "can only reload from main coroutine\n";	3932	error "can only reload from main coroutine";
2286	return;	3933	return;
2287	}	3934	}
2288		3935
2289	warn "reloading...";	3936	return if $RELOAD++;
2290		3937
2291	warn "freezing server";	3938	my $t1 = AE::time;
2292	my $guard = freeze_mainloop;	3939
		3940	while ($RELOAD) {
		3941	cf::get_slot 0.1, -1, "reload_perl";
		3942	info "perl_reload: reloading...";
		3943
		3944	trace "perl_reload: entering sync_job";
		3945
		3946	cf::sync_job {
2293	cf::emergency_save;	3947	#cf::emergency_save;
2294		3948
2295	warn "sync database to disk";	3949	trace "perl_reload: cancelling all extension coros";
2296	cf::db_sync;
2297	IO::AIO::flush;
2298
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved
2301
2302	warn "cancel all watchers";
2303	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}
2306
2307	warn "cancel all extension coros";
2308	$_->cancel for values %EXT_CORO;	3950	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	3951	%EXT_CORO = ();
2310		3952
2311	warn "remove commands";	3953	trace "perl_reload: removing commands";
2312	%COMMAND = ();	3954	%COMMAND = ();
2313		3955
2314	warn "remove ext commands";	3956	trace "perl_reload: removing ext/exti commands";
2315	%EXTCMD = ();	3957	%EXTCMD = ();
		3958	%EXTICMD = ();
2316		3959
2317	warn "unload/nuke all extensions";	3960	trace "perl_reload: unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	3961	for my $pkg (@EXTS) {
2319	warn "unloading <$pkg>";	3962	trace "... unloading $pkg";
2320		3963
2321	if (my $cb = $pkg->can ("unload")) {	3964	if (my $cb = $pkg->can ("unload")) {
2322	eval {	3965	eval {
2323	$cb->($pkg);	3966	$cb->($pkg);
2324	1	3967	1
2325	} or warn "$pkg unloaded, but with errors: $@";	3968	} or error "$pkg unloaded, but with errors: $@";
		3969	}
		3970
		3971	trace "... clearing $pkg";
		3972	clear_package $pkg;
2326	}	3973	}
2327		3974
2328	Symbol::delete_package $pkg;
2329	}
2330
2331	warn "unload all perl modules loaded from $LIBDIR";	3975	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2332	while (my ($k, $v) = each %INC) {	3976	while (my ($k, $v) = each %INC) {
2333	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3977	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2334		3978
2335	warn "removing <$k>";	3979	trace "... unloading $k";
2336	delete $INC{$k};	3980	delete $INC{$k};
2337		3981
2338	$k =~ s/\.pm$//;	3982	$k =~ s/\.pm$//;
2339	$k =~ s/\//::/g;	3983	$k =~ s/\//::/g;
2340		3984
2341	if (my $cb = $k->can ("unload_module")) {	3985	if (my $cb = $k->can ("unload_module")) {
2342	$cb->();	3986	$cb->();
		3987	}
		3988
		3989	clear_package $k;
2343	}	3990	}
2344		3991
2345	Symbol::delete_package $k;
2346	}
2347
2348	warn "get rid of safe::, as good as possible";	3992	trace "perl_reload: getting rid of safe::, as good as possible";
2349	Symbol::delete_package "safe::$_"	3993	clear_package "safe::$_"
2350	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3994	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2351		3995
2352	warn "unload cf.pm \"a bit\"";	3996	trace "perl_reload: unloading cf.pm \"a bit\"";
2353	delete $INC{"cf.pm"};	3997	delete $INC{"cf.pm"};
		3998	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2354		3999
2355	# don't, removes xs symbols, too,	4000	# don't, removes xs symbols, too,
2356	# and global variables created in xs	4001	# and global variables created in xs
2357	#Symbol::delete_package __PACKAGE__;	4002	#clear_package __PACKAGE__;
2358		4003
2359	warn "reloading cf.pm";	4004	info "perl_reload: unload completed, starting to reload now";
		4005
		4006	trace "perl_reload: reloading cf.pm";
2360	require cf;	4007	require cf;
2361	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4008	cf::_connect_to_perl_1;
2362		4009
2363	warn "load config and database again";	4010	trace "perl_reload: loading config and database again";
2364	cf::cfg_load;	4011	cf::reload_config;
2365	cf::db_load;
2366		4012
2367	warn "load extensions";	4013	trace "perl_reload: loading extensions";
2368	cf::load_extensions;	4014	cf::load_extensions;
2369		4015
		4016	if ($REATTACH_ON_RELOAD) {
2370	warn "reattach attachments to objects/players";	4017	trace "perl_reload: reattaching attachments to objects/players";
2371	_global_reattach;	4018	_global_reattach; # objects, sockets
2372	warn "reattach attachments to maps";	4019	trace "perl_reload: reattaching attachments to maps";
2373	reattach $_ for values %MAP;	4020	reattach $_ for values %MAP;
		4021	trace "perl_reload: reattaching attachments to players";
		4022	reattach $_ for values %PLAYER;
		4023	}
		4024
		4025	cf::_post_init 1;
		4026
		4027	trace "perl_reload: leaving sync_job";
		4028
		4029	1
		4030	} or do {
		4031	error $@;
		4032	cf::cleanup "perl_reload: error, exiting.";
		4033	};
		4034
		4035	--$RELOAD;
		4036	}
		4037
		4038	$t1 = AE::time - $t1;
		4039	info "perl_reload: completed in ${t1}s\n";
		4040	};
		4041
		4042	our $RELOAD_WATCHER; # used only during reload
		4043
		4044	sub reload_perl() {
		4045	# doing reload synchronously and two reloads happen back-to-back,
		4046	# coro crashes during coro_state_free->destroy here.
		4047
		4048	$RELOAD_WATCHER ||= cf::async {
		4049	Coro::AIO::aio_wait cache_extensions;
		4050
		4051	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4052	do_reload_perl;
		4053	undef $RELOAD_WATCHER;
		4054	};
2374	};	4055	};
2375
2376	if ($@) {
2377	warn $@;
2378	warn "error while reloading, exiting.";
2379	exit 1;
2380	}
2381
2382	warn "reloaded";
2383	};
2384
2385	#############################################################################
2386
2387	unless ($LINK_MAP) {
2388	$LINK_MAP = cf::map::new;
2389
2390	$LINK_MAP->width (41);
2391	$LINK_MAP->height (41);
2392	$LINK_MAP->alloc;
2393	$LINK_MAP->path ("{link}");
2394	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2395	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2396
2397	# dirty hack because... archetypes are not yet loaded
2398	Event->timer (
2399	after => 10,
2400	cb => sub {
2401	$_[0]->w->cancel;
2402
2403	# provide some exits "home"
2404	my $exit = cf::object::new "exit";
2405
2406	$exit->slaying ($EMERGENCY_POSITION->[0]);
2407	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2408	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2409
2410	$LINK_MAP->insert ($exit->clone, 19, 19);
2411	$LINK_MAP->insert ($exit->clone, 19, 20);
2412	$LINK_MAP->insert ($exit->clone, 19, 21);
2413	$LINK_MAP->insert ($exit->clone, 20, 19);
2414	$LINK_MAP->insert ($exit->clone, 20, 21);
2415	$LINK_MAP->insert ($exit->clone, 21, 19);
2416	$LINK_MAP->insert ($exit->clone, 21, 20);
2417	$LINK_MAP->insert ($exit->clone, 21, 21);
2418
2419	$exit->destroy;
2420	});
2421
2422	$LINK_MAP->{deny_save} = 1;
2423	$LINK_MAP->{deny_reset} = 1;
2424
2425	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2426	}	4056	}
2427		4057
2428	register_command "reload" => sub {	4058	register_command "reload" => sub {
2429	my ($who, $arg) = @_;	4059	my ($who, $arg) = @_;
2430		4060
2431	if ($who->flag (FLAG_WIZ)) {	4061	if ($who->flag (FLAG_WIZ)) {
2432	$who->message ("start of reload.");
2433	reload;
2434	$who->message ("end of reload.");	4062	$who->message ("reloading server.");
		4063	async {
		4064	$Coro::current->{desc} = "perl_reload";
		4065	reload_perl;
		4066	};
2435	}	4067	}
2436	};	4068	};
2437		4069
2438	unshift @INC, $LIBDIR;	4070	#############################################################################
2439		4071
2440	$TICK_WATCHER = Event->timer (	4072	my $bug_warning = 0;
2441	reentrant => 0,	4073
2442	prio => 0,	4074	our @WAIT_FOR_TICK;
2443	at => $NEXT_TICK || $TICK,	4075	our @WAIT_FOR_TICK_BEGIN;
2444	data => WF_AUTOCANCEL,	4076
2445	cb => sub {	4077	sub wait_for_tick() {
		4078	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4079
		4080	my $signal = new Coro::Signal;
		4081	push @WAIT_FOR_TICK, $signal;
		4082	$signal->wait;
		4083	}
		4084
		4085	sub wait_for_tick_begin() {
		4086	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4087
		4088	my $signal = new Coro::Signal;
		4089	push @WAIT_FOR_TICK_BEGIN, $signal;
		4090	$signal->wait;
		4091	}
		4092
		4093	sub tick {
		4094	if ($Coro::current != $Coro::main) {
		4095	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4096	unless ++$bug_warning > 10;
		4097	return;
		4098	}
		4099
2446	cf::server_tick; # one server iteration	4100	cf::server_tick; # one server iteration
2447	$RUNTIME += $TICK;
2448	$NEXT_TICK += $TICK;
2449		4101
2450	$WAIT_FOR_TICK->broadcast;	4102	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2451	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2452		4103
2453	# if we are delayed by four ticks or more, skip them all	4104	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2454	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4105	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2455		4106	Coro::async_pool {
2456	$TICK_WATCHER->at ($NEXT_TICK);	4107	$Coro::current->{desc} = "runtime saver";
2457	$TICK_WATCHER->start;
2458	},
2459	);
2460
2461	IO::AIO::max_poll_time $TICK * 0.2;
2462
2463	Event->io (
2464	fd => IO::AIO::poll_fileno,
2465	poll => 'r',
2466	prio => 5,
2467	data => WF_AUTOCANCEL,
2468	cb => \&IO::AIO::poll_cb,
2469	);
2470
2471	Event->timer (
2472	data => WF_AUTOCANCEL,
2473	after => 0,
2474	interval => 10,
2475	cb => sub {
2476	(Coro::unblock_sub {
2477	write_runtime	4108	write_runtime_sync
2478	or warn "ERROR: unable to write runtime file: $!";	4109	or error "ERROR: unable to write runtime file: $!";
2479	})->();	4110	};
2480	},	4111	}
2481	);	4112
		4113	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4114	$sig->send;
		4115	}
		4116	while (my $sig = shift @WAIT_FOR_TICK) {
		4117	$sig->send;
		4118	}
		4119
		4120	$LOAD = ($NOW - $TICK_START) / $TICK;
		4121	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4122
		4123	if (0) {
		4124	if ($NEXT_TICK) {
		4125	my $jitter = $TICK_START - $NEXT_TICK;
		4126	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4127	debug "jitter $JITTER\n";#d#
		4128	}
		4129	}
		4130	}
		4131
		4132	{
		4133	# configure BDB
		4134
		4135	BDB::min_parallel 16;
		4136	BDB::max_poll_reqs $TICK * 0.1;
		4137	$AnyEvent::BDB::WATCHER->priority (1);
		4138
		4139	unless ($DB_ENV) {
		4140	$DB_ENV = BDB::db_env_create;
		4141	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4142	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4143	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4144	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4145	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4146
		4147	cf::sync_job {
		4148	eval {
		4149	BDB::db_env_open
		4150	$DB_ENV,
		4151	$BDBDIR,
		4152	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4153	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4154	0666;
		4155
		4156	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4157	};
		4158
		4159	cf::cleanup "db_env_open(db): $@" if $@;
		4160	};
		4161	}
		4162
		4163	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4164	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4165	};
		4166	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4167	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4168	};
		4169	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4170	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4171	};
		4172	}
		4173
		4174	{
		4175	# configure IO::AIO
		4176
		4177	IO::AIO::min_parallel 8;
		4178	IO::AIO::max_poll_time $TICK * 0.1;
		4179	undef $AnyEvent::AIO::WATCHER;
		4180	}
		4181
		4182	our $_log_backtrace;
		4183	our $_log_backtrace_last;
		4184
		4185	sub _log_backtrace {
		4186	my ($msg, @addr) = @_;
		4187
		4188	$msg =~ s/\n$//;
		4189
		4190	if ($_log_backtrace_last eq $msg) {
		4191	LOG llevInfo, "[ABT] $msg\n";
		4192	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4193	# limit the # of concurrent backtraces
		4194	} elsif ($_log_backtrace < 2) {
		4195	$_log_backtrace_last = $msg;
		4196	++$_log_backtrace;
		4197	my $perl_bt = Carp::longmess $msg;
		4198	async {
		4199	$Coro::current->{desc} = "abt $msg";
		4200
		4201	my @bt = fork_call {
		4202	@addr = map { sprintf "%x", $_ } @addr;
		4203	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4204	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4205	or die "addr2line: $!";
		4206
		4207	my @funcs;
		4208	my @res = <$fh>;
		4209	chomp for @res;
		4210	while (@res) {
		4211	my ($func, $line) = splice @res, 0, 2, ();
		4212	push @funcs, "[$func] $line";
		4213	}
		4214
		4215	@funcs
		4216	};
		4217
		4218	LOG llevInfo, "[ABT] $perl_bt\n";
		4219	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4220	LOG llevInfo, "[ABT] $_\n" for @bt;
		4221	--$_log_backtrace;
		4222	};
		4223	} else {
		4224	LOG llevInfo, "[ABT] $msg\n";
		4225	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4226	}
		4227	}
		4228
		4229	# load additional modules
		4230	require "cf/$_.pm" for @EXTRA_MODULES;
		4231	cf::_connect_to_perl_2;
2482		4232
2483	END { cf::emergency_save }	4233	END { cf::emergency_save }
2484		4234
2485	1	4235	1
2486		4236

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