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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.164 by root, Thu Jan 11 01:24:25 2007 UTC vs.
Revision 1.568 by root, Tue May 3 17:12:14 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98
		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
49	our $NEXT_TICK;	123	our $NEXT_TICK;
50	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);
51		132
52	our %CFG;	133	our %CFG;
53		134
54	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
56		138
57	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		142
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
63	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 $REALLY_UNLOOP; # never set to true, please :)
64		155
65	binmode STDOUT;	156	binmode STDOUT;
66	binmode STDERR;	157	binmode STDERR;
67		158
68	# read virtual server time, if available	159	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
73	}	164	}
74		165
75	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		167
81	# a special map that is always available	168	mkdir $_
82	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
83	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::"} };
84		189
85	#############################################################################	190	#############################################################################
86		191
87	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
88		193
…		…
95	=item $cf::RUNTIME	200	=item $cf::RUNTIME
96		201
97	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
98	every server tick.	203	every server tick.
99		204
100	=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
101		208
102	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		213
105	=item $cf::NOW	214	=item $cf::NOW
106		215
107	The time of the last (current) server tick.	216	The time of the last (current) server tick.
108		217
109	=item $cf::TICK	218	=item $cf::TICK
110		219
111	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
112		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
113	=item %cf::CFG	232	=item %cf::CFG
114		233
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	235	from wherever your confdir points to.
117		236
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		238
120	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
121	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
122	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.
123	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.
124		259
125	=back	260	=back
126		261
127	=cut	262	=cut
128		263
129	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
130	*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 {
131	my $msg = join "", @_;	271	my $msg = join "", @_;
132	utf8::encode $msg;
133		272
134	$msg .= "\n"	273	$msg .= "\n"
135	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
136		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
137	LOG llevError, $msg;	278	LOG llevWarn, $msg;
138	};	279	};
139	}	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	};
140		294
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		302
148	# 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
149	# within the Safe compartment.	304	# within the Safe compartment.
150	for my $pkg (qw(	305	for my $pkg (qw(
151	cf::global cf::attachable	306	cf::global cf::attachable
152	cf::object cf::object::player	307	cf::object cf::object::player
153	cf::client cf::player	308	cf::client cf::player
154	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
155	cf::map cf::party cf::region	311	cf::party cf::region
156	)) {	312	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	314	}
160		315
161	$Event::DIED = sub {	316	$EV::DIED = sub {
162	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
163	};	318	};
		319
		320	#############################################################################
		321
		322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
164		326
165	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
166		328
167	=over 4	329	=over 4
168		330
…		…
187	$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;
188	$d	350	$d
189	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
190	}	352	}
191		353
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
193		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
194	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
195		369
196	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
197		371
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
206		373
207	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
208		375
209	=cut	376	=cut
210		377
211	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
213	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	}
214	}	443	}
215		444
216	=item cf::lock_wait $string	445	=item cf::lock_wait $string
217		446
218	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
219		448
220	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
221		450
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
225	returned.	454	returned.
226		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
227	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
228	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
229		461
230	=cut	462	=item $locked = cf::lock_active $string
231		463
232	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;
233		469
234	sub lock_wait($) {	470	sub lock_wait($) {
235	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	472	}
243		473
244	sub lock_acquire($) {	474	sub lock_acquire($) {
245	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
246		477
247	# wait, to be sure we are not locked	478	sub lock_active($) {
248	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	480	}
257		481
258	sub freeze_mainloop {	482	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
260		484
261	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	486	}
263	$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;
264	}	572	}
265		573
266	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
267		575
268	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		581
274	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
275		583
276	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
277		585
278	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
279	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
280	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.
281		590
282	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
283	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
284	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
285	fast or be very important.	594	fast or be very important.
…		…
287	=cut	596	=cut
288		597
289	sub sync_job(&) {	598	sub sync_job(&) {
290	my ($job) = @_;	599	my ($job) = @_;
291		600
292	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
293	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
295		606
296	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	608
298	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
299		610
300	my $busy = 1;	611	my $busy = 1;
301	my @res;	612	my @res;
302		613
303	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	616	@res = eval { $job->() };
305	warn $@ if $@;	617	error $@ if $@;
306	undef $busy;	618	undef $busy;
307	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
308		620
309	while ($busy) {	621	while ($busy) {
310	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
311	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
312		632
313	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
314	} else {	634	} else {
315	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
316		636
…		…
336	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
337		657
338	$coro	658	$coro
339	}	659	}
340		660
341	sub write_runtime {	661	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		662
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
345	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.
346		667
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		669
351	aio_fsync $fh	670	sub post_fork {
352	and return;	671	reset_signals;
		672	}
353		673
354	close $fh	674	sub fork_call(&@) {
355	or return;	675	my ($cb, @args) = @_;
356		676
357	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
358	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
359		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 {
360	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 });
361	}	864	}
362		865
363	=back	866	=back
364		867
365	=cut	868	=cut
366		869
367	#############################################################################	870	#############################################################################
368		871
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	sub unlink_save {
522	my ($self) = @_;
523
524	utf8::encode (my $save = $self->save_path);
525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
527	}
528
529	package cf;
530
531	#############################################################################
532
533	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
534		873
535	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
536	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")
537	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
538		877
539	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>
540	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
541	crossfire+).	880	Deliantra).
542		881
543	=over 4	882	=over 4
544		883
545	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
546		885
…		…
590	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
591		930
592	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
593	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
594		933
595	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
596	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.
597		936
598	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
599		938
600	=over 4	939	=over 4
…		…
660	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
661	our @CB_MAP = ();	1000	our @CB_MAP = ();
662		1001
663	my %attachment;	1002	my %attachment;
664		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
665	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
666	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
667		1012
668	use sort 'stable';	1013	use sort 'stable';
669		1014
…		…
703	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
704		1049
705	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
706	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
707	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
708	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
709		1054
710	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
711	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
712		1057
713	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
718		1063
719	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
720	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
721		1066
722	} elsif (ref $type) {	1067	} elsif (ref $type) {
723	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
724		1069
725	} else {	1070	} else {
726	shift @arg;	1071	shift @arg;
727	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
728	}	1073	}
729	}	1074	}
730	}	1075	}
731		1076
732	sub _object_attach {	1077	sub _object_attach {
…		…
742	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
743	}	1088	}
744		1089
745	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
746	} else {	1091	} else {
747	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
748	}	1093	}
749		1094
750	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
751	}	1096	}
752		1097
…		…
754	if (ref $_[0]) {	1099	if (ref $_[0]) {
755	_object_attach @_;	1100	_object_attach @_;
756	} else {	1101	} else {
757	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
758	}	1103	}
		1104	_recalc_want;
759	};	1105	};
760		1106
761	# all those should be optimised	1107	# all those should be optimised
762	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
763	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
766	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
767	reattach ($obj);	1113	reattach ($obj);
768	} else {	1114	} else {
769	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
770	}	1116	}
		1117	_recalc_want;
771	};	1118	};
772		1119
773	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
774	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
775		1122
…		…
790	";	1137	";
791	die if $@;	1138	die if $@;
792	}	1139	}
793		1140
794	our $override;	1141	our $override;
795	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?
796		1143
797	sub override {	1144	sub override {
798	$override = 1;	1145	$override = 1;
799	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
800	}	1147	}
801		1148
802	sub do_invoke {	1149	sub do_invoke {
803	my $event = shift;	1150	my $event = shift;
804	my $callbacks = shift;	1151	my $callbacks = shift;
805		1152
806	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
807		1154
808	local $override;	1155	local $override;
809		1156
810	for (@$callbacks) {	1157	for (@$callbacks) {
811	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
812		1159
813	if ($@) {	1160	if ($@) {
814	warn "$@";
815	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
816	override;	1162	override;
817	}	1163	}
818		1164
819	return 1 if $override;	1165	return 1 if $override;
820	}	1166	}
821		1167
822	0	1168	0
823	}	1169	}
824		1170
825	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
826		1172
827	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
828		1174
829	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
830		1176
831	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
832	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
833	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
834		1180
835	=back	1181	=back
836		1182
837	=cut	1183	=cut
838		1184
839	#############################################################################	1185	#############################################################################
840	# 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	}
841		1229
842	sub reattach {	1230	sub reattach {
843	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
844	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
845		1236
846	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
847		1238
848	@$registry = ();	1239	@$registry = ();
849		1240
…		…
854	for (@$attach) {	1245	for (@$attach) {
855	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
856	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
857	}	1248	}
858	} else {	1249	} else {
859	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
860	}	1251	}
861	}	1252	}
862	}	1253	}
863		1254
864	cf::attachable->attach (	1255	cf::attachable->attach (
865	prio => -1000000,	1256	prio => -1000000,
866	on_instantiate => sub {	1257	on_instantiate => sub {
867	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
868		1259
869	$data = from_json $data;	1260	$data = decode_json $data;
870		1261
871	for (@$data) {	1262	for (@$data) {
872	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
873		1264
874	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
890	sub object_freezer_save {	1281	sub object_freezer_save {
891	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
892		1283
893	sync_job {	1284	sync_job {
894	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
895	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
896	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
897		1290
898	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
899	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
900	aio_write $fh, 0, (length $$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;
901	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
902	close $fh;	1298	aio_close $fh;
903		1299
904	if (@$objs) {	1300	if (@$objs) {
905	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) {
906	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
907	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
908	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;
909	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
910	close $fh;	1309	aio_close $fh;
911	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
912	}	1311	}
913	} else {	1312	} else {
914	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
915	}	1314	}
916		1315
917	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
918	} else {	1320	} else {
919	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
920	}	1322	}
921	} else {	1323	} else {
922	aio_unlink $filename;	1324	aio_unlink $filename;
923	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
924	}	1326	}
925	}	1327	};
926	}	1328	}
927		1329
928	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
929	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
930		1332
…		…
942	or return;	1344	or return;
943		1345
944	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
945	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
946	or return;	1348	or return;
		1349
947	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
948	}	1352	}
949		1353
		1354	utf8::decode (my $decname = $filename);
950	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
951	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
952	return ($data, $av);	1359	($data, $av)
953	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
954		1367
955	#############################################################################	1368	#############################################################################
956	# command handling &c	1369	# command handling &c
957		1370
958	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
971	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
972	}	1385	}
973		1386
974	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
975		1388
976	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.
977		1394
978	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
979	called.	1396	called.
980		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
981	=cut	1409	=cut
982		1410
983	sub register_extcmd {	1411	sub register_extcmd {
984	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
985		1413
986	$EXTCMD{$name} = $cb;	1414	$EXTCMD{$name} = $cb;
987	}	1415	}
988		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
		1424
989	cf::player->attach (	1425	cf::player->attach (
990	on_command => sub {	1426	on_unknown_command => sub {
991	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
992		1428
993	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
994	or return;	1430	or return;
995		1431
…		…
1000	cf::override;	1436	cf::override;
1001	},	1437	},
1002	on_extcmd => sub {	1438	on_extcmd => sub {
1003	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
1004		1440
1005	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1006		1442
1007	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
1008	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
1009	if (my %reply = $cb->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
1010	$pl->ext_reply ($msg->{msgid}, %reply);
1011	}
1012	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
1013	} else {	1458	} else {
1014	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1015	}	1460	}
1016		1461
1017	cf::override;	1462	cf::override;
1018	},	1463	},
1019	);	1464	);
1020		1465
		1466	# "readahead" all extensions
1021	sub load_extension {	1467	sub cache_extensions {
1022	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
1023		1469
1024	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1025	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
1026	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1027	$pkg =~ s/[^[:word:]]/_/g;	1473	}
1028	$pkg = "ext::$pkg";	1474	};
1029		1475
1030	warn "... loading '$path' into '$pkg'\n";	1476	$grp
1031
1032	open my $fh, "<:utf8", $path
1033	or die "$path: $!";
1034
1035	my $source =
1036	"package $pkg; use strict; use utf8;\n"
1037	. "#line 1 \"$path\"\n{\n"
1038	. (do { local $/; <$fh> })
1039	. "\n};\n1";
1040
1041	eval $source
1042	or die $@ ? "$path: $@\n"
1043	: "extension disabled.\n";
1044
1045	push @EXTS, $pkg;
1046	}	1477	}
1047		1478
1048	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1049	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1050	next unless -r $ext;	1486	next unless -r $path;
1051	eval {	1487
1052	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	}
1053	1	1551	}
1054	} 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	}
1055	}	1564	};
1056	}	1565	}
1057		1566
1058	#############################################################################	1567	#############################################################################
1059	# load/save/clean perl data associated with a map
1060		1568
1061	*cf::mapsupport::on_clean = sub {	1569	=back
1062	my ($map) = @_;
1063
1064	my $path = $map->tmpname;
1065	defined $path or return;
1066
1067	unlink "$path.pst";
1068	};
1069
1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1071
1072	#############################################################################
1073		1570
1074	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
1075		1572
1076	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
1077		1574
1078	=cut	1575	=cut
1079		1576
1080	package cf::player;	1577	package cf::player;
1081		1578
…		…
1083		1580
1084	=head3 cf::player	1581	=head3 cf::player
1085		1582
1086	=over 4	1583	=over 4
1087		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
1088	=item cf::player::find $login	1599	=item cf::player::find $login
1089		1600
1090	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
1091		1602
1092	=cut	1603	=cut
1093		1604
1094	sub playerdir($) {	1605	sub playerdir($) {
1095	cf::localdir	1606	"$PLAYERDIR/"
1096	. "/"
1097	. cf::playerdir
1098	. "/"
1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1100	}	1608	}
1101		1609
1102	sub path($) {	1610	sub path($) {
1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1104		1612
1105	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
1106	}	1614	}
1107		1615
1108	sub find_active($) {	1616	sub find_active($) {
1109	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
1110	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
1113		1621
1114	sub exists($) {	1622	sub exists($) {
1115	my ($login) = @_;	1623	my ($login) = @_;
1116		1624
1117	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
1118	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
1119	}	1627	}
1120		1628
1121	sub find($) {	1629	sub find($) {
1122	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
1123	my $login = $_[0];	1631	my $login = $_[0];
1124		1632
1125	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
1126		1634
1127	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
1128	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
1129	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;
1130	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
1131	}	1652	}
1132	}	1653	}
1133	}	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	);
1134		1668
1135	sub save($) {	1669	sub save($) {
1136	my ($pl) = @_;	1670	my ($pl) = @_;
1137		1671
1138	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1143	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1144		1678
1145	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1146	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1147		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
1148	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1149	Coro::cede;	1688	cf::cede_to_tick;
1150	}	1689	}
1151		1690
1152	sub new($) {	1691	sub new($) {
1153	my ($login) = @_;	1692	my ($login) = @_;
1154		1693
…		…
1160	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1161		1700
1162	$self	1701	$self
1163	}	1702	}
1164		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
1165	=item $pl->quit_character	1714	=item $pl->quit_character
1166		1715
1167	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
1168	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1169		1718
1170	=cut	1719	=cut
1171		1720
1172	sub quit_character {	1721	sub quit_character {
1173	my ($pl) = @_;	1722	my ($pl) = @_;
1174		1723
		1724	my $name = $pl->ob->name;
		1725
1175	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1176	$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
1177		1728
1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1179	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1180	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1181	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1182		1737
1183	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1184	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1185	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1186	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1187	$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
1188	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;
1189	}	1764	}
1190		1765
1191	=item cf::player::list_logins	1766	=item cf::player::list_logins
1192		1767
1193	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
1194	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1195		1770
1196	=cut	1771	=cut
1197		1772
1198	sub list_logins {	1773	sub list_logins {
1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1200	or return [];	1775	or return [];
1201		1776
1202	my @logins;	1777	my @logins;
1203		1778
1204	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") {
1205	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1206	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1207	$buf !~ /^password -------------$/m or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1208		1789
1209	utf8::decode $login;	1790	utf8::decode $login;
1210	push @logins, $login;	1791	push @logins, $login;
1211	}	1792	}
1212		1793
1213	\@logins	1794	\@logins
1214	}	1795	}
1215		1796
1216	=item $player->maps	1797	=item $player->maps
1217		1798
		1799	=item cf::player::maps $login
		1800
1218	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
1219	player. May block.	1802	player. May block.
1220		1803
1221	=cut	1804	=cut
1222		1805
1223	sub maps($) {	1806	sub maps($) {
1224	my ($pl) = @_;	1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
1225		1810
1226	my $files = aio_readdir playerdir $pl	1811	my $files = aio_readdir playerdir $pl
1227	or return;	1812	or return;
1228		1813
1229	my @paths;	1814	my @paths;
…		…
1231	for (@$files) {	1816	for (@$files) {
1232	utf8::decode $_;	1817	utf8::decode $_;
1233	next if /\.(?:pl|pst)$/;	1818	next if /\.(?:pl|pst)$/;
1234	next unless /^$PATH_SEP/o;	1819	next unless /^$PATH_SEP/o;
1235		1820
1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1821	push @paths, cf::map::normalise "~$pl/$_";
1237	}	1822	}
1238		1823
1239	\@paths	1824	\@paths
1240	}	1825	}
1241		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1242	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1243		1832
1244	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1245		1834
1246	=cut	1835	=cut
1247		1836
1248	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1249	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1250		1839
1251	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1252
1253	$self->send ("ext " . cf::to_json \%msg);
1254	}	1841	}
1255		1842
1256	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		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	}
1257		1885
1258	=back	1886	=back
1259
1260		1887
1261	=head3 cf::map	1888	=head3 cf::map
1262		1889
1263	=over 4	1890	=over 4
1264		1891
…		…
1267	package cf::map;	1894	package cf::map;
1268		1895
1269	use Fcntl;	1896	use Fcntl;
1270	use Coro::AIO;	1897	use Coro::AIO;
1271		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1272	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1273	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1274		1905
1275	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($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 {
1276	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1277		1946
1278	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1279	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
1280	$path,	1976	$path
1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1977	}
1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1978
1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1979	sub new_from_path {
1284	$rmp->{exit_on_final_map},	1980	my (undef, $path, $base) = @_;
1285	$rmp->{xsize}, $rmp->{ysize},	1981
1286	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1287	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1983
1288	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1984	$path = normalise $path, $base;
1289	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1985
1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1291	(cf::region::find $rmp->{region}), $rmp->{custom}	1987	if ($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 '$base')";
1292	)	1996	()
1293	}	1997	}
1294		1998
1295	# and all this just because we cannot iterate over	1999	# may re-bless or do other evil things
1296	# all maps in C++...	2000	sub init {
1297	sub change_all_map_light {
1298	my ($change) = @_;	2001	my ($self) = @_;
1299		2002
1300	$_->change_map_light ($change)	2003	$self
1301	for grep $_->outdoor, values %cf::MAP;
1302	}	2004	}
1303		2005
		2006	sub as_string {
		2007	my ($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
1304	sub load_map_header($) {	2056	sub load_header_from($) {
1305	my ($path) = @_;	2057	my ($self, $path) = @_;
1306		2058
1307	utf8::encode $path;	2059	utf8::encode $path;
1308	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1309	or return;	2061	or return;
1310		2062
1311	my $map = cf::map::new	2063	$self->_load_header ($f)
1312	or return;	2064	or return;
1313		2065
1314	# for better error messages only, will be overwritten later	2066	local $MAP_LOADING{$self->{path}} = $self;
1315	$map->path ($path);	2067	$f->resolve_delayed_derefs;
1316		2068
1317	$map->load_header ($path)	2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	# used to laod the header of an original map
		2075	sub load_header_orig {
		2076	my ($self) = @_;
		2077
		2078	$self->load_header_from ($self->load_path)
		2079	}
		2080
		2081	# used to laod the header of an instantiated map
		2082	sub load_header_temp {
		2083	my ($self) = @_;
		2084
		2085	$self->load_header_from ($self->save_path)
		2086	}
		2087
		2088	# called after loading the header from an instantiated map
		2089	sub prepare_temp {
		2090	my ($self) = @_;
		2091
		2092	$self->last_access ((delete $self->{last_access})
		2093	|| $cf::RUNTIME); #d#
		2094	# safety
		2095	$self->{instantiate_time} = $cf::RUNTIME
		2096	if $self->{instantiate_time} > $cf::RUNTIME;
		2097	}
		2098
		2099	# called after loading the header from an original map
		2100	sub prepare_orig {
		2101	my ($self) = @_;
		2102
		2103	$self->{load_original} = 1;
		2104	$self->{instantiate_time} = $cf::RUNTIME;
		2105	$self->last_access ($cf::RUNTIME);
		2106	$self->instantiate;
		2107	}
		2108
		2109	sub load_header {
		2110	my ($self) = @_;
		2111
		2112	if ($self->load_header_temp) {
		2113	$self->prepare_temp;
		2114	} else {
		2115	$self->load_header_orig
1318	or return;	2116	or return;
		2117	$self->prepare_orig;
		2118	}
1319		2119
1320	$map->{load_path} = $path;	2120	$self->{deny_reset} = 1
		2121	if $self->no_reset;
1321		2122
1322	$map	2123	$self->default_region (cf::region::find_by_path $self->{path})
		2124	unless $self->default_region;
		2125
		2126	1
1323	}	2127	}
1324		2128
1325	sub find;	2129	sub find;
1326	sub find {	2130	sub find {
1327	my ($path, $origin) = @_;	2131	my ($path, $origin) = @_;
1328		2132
1329	#warn "find<$path,$origin>\n";#d#	2133	cf::cede_to_tick;
1330		2134
1331	$path = new cf::path $path, $origin && $origin->path;	2135	$path = normalise $path, $origin;
1332	my $key = $path->as_string;
1333		2136
1334	cf::lock_wait "map_find:$key";	2137	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1335
1336	$cf::MAP{$key} || do {
1337	my $guard = cf::lock_acquire "map_find:$key";	2138	my $guard2 = cf::lock_acquire "map_find:$path";
1338		2139
1339	# do it the slow way	2140	$cf::MAP{$path} || do {
1340	my $map = $path->load_temp;	2141	my $map = new_from_path cf::map $path
1341
1342	Coro::cede;
1343
1344	if ($map) {
1345	$map->last_access ((delete $map->{last_access})
1346	|| $cf::RUNTIME); #d#
1347	# safety
1348	$map->{instantiate_time} = $cf::RUNTIME
1349	if $map->{instantiate_time} > $cf::RUNTIME;
1350	} else {
1351	$map = $path->load_orig
1352	or return;	2142	or return;
1353		2143
1354	$map->{load_original} = 1;
1355	$map->{instantiate_time} = $cf::RUNTIME;
1356	$map->last_access ($cf::RUNTIME);
1357	$map->instantiate;
1358
1359	# per-player maps become, after loading, normal maps
1360	$map->per_player (0) if $path->{user_rel};
1361	}
1362
1363	$map->path ($key);
1364	$map->{path} = $path;
1365	$map->{last_save} = $cf::RUNTIME;	2144	$map->{last_save} = $cf::RUNTIME;
1366		2145
1367	Coro::cede;	2146	$map->load_header
		2147	or return;
1368		2148
1369	if ($map->should_reset) {	2149	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2150	# doing this can freeze the server in a sync job, obviously
		2151	#$cf::WAIT_FOR_TICK->wait;
		2152	undef $guard2;
		2153	undef $guard1;
1370	$map->reset;	2154	$map->reset;
1371	undef $guard;
1372	$map = find $path	2155	return find $path;
1373	or return;
1374	}	2156	}
1375		2157
1376	$cf::MAP{$key} = $map	2158	$cf::MAP{$path} = $map
1377	}	2159	}
1378	}	2160	}
		2161
		2162	sub pre_load { }
		2163	#sub post_load { } # XS
1379		2164
1380	sub load {	2165	sub load {
1381	my ($self) = @_;	2166	my ($self) = @_;
1382		2167
		2168	local $self->{deny_reset} = 1; # loading can take a long time
		2169
1383	my $path = $self->{path};	2170	my $path = $self->{path};
		2171
		2172	{
1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2173	my $guard = cf::lock_acquire "map_data:$path";
1385		2174
		2175	return unless $self->valid;
1386	return if $self->in_memory != cf::MAP_SWAPPED;	2176	return unless $self->in_memory == cf::MAP_SWAPPED;
1387		2177
1388	$self->in_memory (cf::MAP_LOADING);	2178	$self->in_memory (cf::MAP_LOADING);
1389		2179
1390	$self->alloc;	2180	$self->alloc;
1391	$self->load_objects ($self->{load_path}, 1)	2181
		2182	$self->pre_load;
		2183	cf::cede_to_tick;
		2184
		2185	if (exists $self->{load_path}) {
		2186	my $f = new_from_file cf::object::thawer $self->{load_path};
		2187	$f->skip_block;
		2188	$self->_load_objects ($f)
1392	or return;	2189	or return;
1393		2190
1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2191	$self->post_load_original
1395	if delete $self->{load_original};	2192	if delete $self->{load_original};
1396		2193
1397	if (my $uniq = $path->uniq_path) {	2194	if (my $uniq = $self->uniq_path) {
1398	utf8::encode $uniq;	2195	utf8::encode $uniq;
1399	if (aio_open $uniq, O_RDONLY, 0) {	2196	unless (aio_stat $uniq) {
		2197	if (my $f = new_from_file cf::object::thawer $uniq) {
1400	$self->clear_unique_items;	2198	$self->clear_unique_items;
1401	$self->load_objects ($uniq, 0);	2199	$self->_load_objects ($f);
		2200	$f->resolve_delayed_derefs;
		2201	}
		2202	}
1402	}	2203	}
1403	}
1404		2204
1405	Coro::cede;	2205	$f->resolve_delayed_derefs;
		2206	} else {
		2207	$self->post_load_original
		2208	if delete $self->{load_original};
		2209	}
1406		2210
		2211	cf::cede_to_tick;
1407	# now do the right thing for maps	2212	# now do the right thing for maps
1408	$self->link_multipart_objects;	2213	$self->link_multipart_objects;
1409
1410	if ($self->{path}->is_style_map) {
1411	$self->{deny_save} = 1;
1412	$self->{deny_reset} = 1;
1413	} else {
1414	$self->decay_objects;
1415	$self->fix_auto_apply;
1416	$self->update_buttons;
1417	$self->set_darkness_map;
1418	$self->difficulty ($self->estimate_difficulty)	2214	$self->difficulty ($self->estimate_difficulty)
1419	unless $self->difficulty;	2215	unless $self->difficulty;
1420	$self->activate;	2216	cf::cede_to_tick;
1421	}
1422		2217
1423	Coro::cede;	2218	unless ($self->{deny_activate}) {
		2219	$self->decay_objects;
		2220	$self->fix_auto_apply;
		2221	$self->update_buttons;
		2222	cf::cede_to_tick;
		2223	#$self->activate; # no longer activate maps automatically
		2224	}
1424		2225
		2226	$self->{last_save} = $cf::RUNTIME;
		2227	$self->last_access ($cf::RUNTIME);
		2228
1425	$self->in_memory (cf::MAP_IN_MEMORY);	2229	$self->in_memory (cf::MAP_ACTIVE);
		2230	}
		2231
		2232	$self->post_load;
		2233
		2234	1
		2235	}
		2236
		2237	# customize the map for a given player, i.e.
		2238	# return the _real_ map. used by e.g. per-player
		2239	# maps to change the path to ~playername/mappath
		2240	sub customise_for {
		2241	my ($self, $ob) = @_;
		2242
		2243	return find "~" . $ob->name . "/" . $self->{path}
		2244	if $self->per_player;
		2245
		2246	# return find "?party/" . $ob->name . "/" . $self->{path}
		2247	# if $self->per_party;
		2248
		2249	$self
1426	}	2250	}
1427		2251
1428	# find and load all maps in the 3x3 area around a map	2252	# find and load all maps in the 3x3 area around a map
1429	sub load_diag {	2253	sub load_neighbours {
1430	my ($map) = @_;	2254	my ($map) = @_;
1431		2255
1432	my @diag; # diagonal neighbours	2256	my @neigh; # diagonal neighbours
1433		2257
1434	for (0 .. 3) {	2258	for (0 .. 3) {
1435	my $neigh = $map->tile_path ($_)	2259	my $neigh = $map->tile_path ($_)
1436	or next;	2260	or next;
1437	$neigh = find $neigh, $map	2261	$neigh = find $neigh, $map
1438	or next;	2262	or next;
1439	$neigh->load;	2263	$neigh->load;
1440		2264
		2265	# now find the diagonal neighbours
		2266	push @neigh,
1441	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2267	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1442	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2268	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1443	}	2269	}
1444		2270
1445	for (@diag) {	2271	for (grep defined $_->[0], @neigh) {
		2272	my ($path, $origin) = @$_;
1446	my $neigh = find @$_	2273	my $neigh = find $path, $origin
1447	or next;	2274	or next;
1448	$neigh->load;	2275	$neigh->load;
1449	}	2276	}
1450	}	2277	}
1451		2278
1452	sub find_sync {	2279	sub find_sync {
1453	my ($path, $origin) = @_;	2280	my ($path, $origin) = @_;
1454		2281
1455	cf::sync_job { find $path, $origin }	2282	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2283	if $Coro::current == $Coro::main;
		2284
		2285	find $path, $origin
1456	}	2286	}
1457		2287
1458	sub do_load_sync {	2288	sub do_load_sync {
1459	my ($map) = @_;	2289	my ($map) = @_;
1460		2290
1461	cf::sync_job { $map->load };	2291	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2292	if $Coro::current == $Coro::main;
		2293
		2294	$map->load;
1462	}	2295	}
1463		2296
1464	our %MAP_PREFETCH;	2297	our %MAP_PREFETCH;
		2298	our $MAP_PREFETCHER = undef;
		2299
		2300	sub find_async {
		2301	my ($path, $origin, $load) = @_;
		2302
		2303	$path = normalise $path, $origin;
		2304
		2305	if (my $map = $cf::MAP{$path}) {
		2306	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2307	}
		2308
		2309	$MAP_PREFETCH{$path} |= $load;
		2310
1465	our $MAP_PREFETCHER = Coro::async {	2311	$MAP_PREFETCHER ||= cf::async {
1466	while () {	2312	$Coro::current->{desc} = "map prefetcher";
		2313
1467	while (%MAP_PREFETCH) {	2314	while (%MAP_PREFETCH) {
1468	my $key = each %MAP_PREFETCH	2315	while (my ($k, $v) = each %MAP_PREFETCH) {
1469	or next;	2316	if (my $map = find $k) {
		2317	$map->load if $v;
		2318	}
		2319
1470	my $path = delete $MAP_PREFETCH{$key};	2320	delete $MAP_PREFETCH{$k};
1471
1472	my $map = find $path
1473	or next;
1474	$map->load;
1475	}	2321	}
1476	Coro::schedule;	2322	}
		2323	undef $MAP_PREFETCHER;
1477	}	2324	};
1478	};
1479
1480	sub find_async {
1481	my ($path, $origin) = @_;
1482
1483	$path = new cf::path $path, $origin && $origin->path;
1484	my $key = $path->as_string;
1485
1486	if (my $map = $cf::MAP{$key}) {
1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1488	}
1489
1490	$MAP_PREFETCH{$key} = $path;
1491	$MAP_PREFETCHER->ready;	2325	$MAP_PREFETCHER->prio (6);
1492		2326
1493	()	2327	()
		2328	}
		2329
		2330	# common code, used by both ->save and ->swapout
		2331	sub _save {
		2332	my ($self) = @_;
		2333
		2334	$self->{last_save} = $cf::RUNTIME;
		2335
		2336	return unless $self->dirty;
		2337
		2338	my $save = $self->save_path; utf8::encode $save;
		2339	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2340
		2341	$self->{load_path} = $save;
		2342
		2343	return if $self->{deny_save};
		2344
		2345	local $self->{last_access} = $self->last_access;#d#
		2346
		2347	cf::async {
		2348	$Coro::current->{desc} = "map player save";
		2349	$_->contr->save for $self->players;
		2350	};
		2351
		2352	cf::get_slot 0.02;
		2353
		2354	if ($uniq) {
		2355	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2356	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2357	} else {
		2358	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2359	}
1494	}	2360	}
1495		2361
1496	sub save {	2362	sub save {
1497	my ($self) = @_;	2363	my ($self) = @_;
1498		2364
1499	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1500		2366
1501	$self->{last_save} = $cf::RUNTIME;	2367	$self->_save;
1502
1503	return unless $self->dirty;
1504
1505	my $save = $self->{path}->save_path; utf8::encode $save;
1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1507
1508	$self->{load_path} = $save;
1509
1510	return if $self->{deny_save};
1511
1512	local $self->{last_access} = $self->last_access;#d#
1513
1514	cf::async {
1515	$_->contr->save for $self->players;
1516	};
1517
1518	if ($uniq) {
1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1520	$self->save_objects ($uniq, cf::IO_UNIQUES);
1521	} else {
1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1523	}
1524	}	2368	}
1525		2369
1526	sub swap_out {	2370	sub swap_out {
1527	my ($self) = @_;	2371	my ($self) = @_;
1528		2372
1529	# save first because save cedes
1530	$self->save;
1531
1532	my $lock = cf::lock_acquire "map_data:" . $self->path;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1533		2374
		2375	return if $self->in_memory != cf::MAP_ACTIVE;
		2376	return if $self->{deny_save};
1534	return if $self->players;	2377	return if $self->players;
1535	return if $self->in_memory != cf::MAP_IN_MEMORY;
1536	return if $self->{deny_save};
1537		2378
		2379	# first deactivate the map and "unlink" it from the core
		2380	$self->deactivate;
		2381	$_->clear_links_to ($self) for values %cf::MAP;
		2382	$self->in_memory (cf::MAP_SWAPPED);
		2383
		2384	# then atomically save
		2385	$self->_save;
		2386
		2387	# then free the map
1538	$self->clear;	2388	$self->clear;
1539	$self->in_memory (cf::MAP_SWAPPED);
1540	}	2389	}
1541		2390
1542	sub reset_at {	2391	sub reset_at {
1543	my ($self) = @_;	2392	my ($self) = @_;
1544		2393
1545	# TODO: safety, remove and allow resettable per-player maps	2394	# TODO: safety, remove and allow resettable per-player maps
1546	return 1e99 if $self->{path}{user_rel};
1547	return 1e99 if $self->{deny_reset};	2395	return 1e99 if $self->{deny_reset};
1548		2396
1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2397	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2398	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1551		2399
…		…
1556	my ($self) = @_;	2404	my ($self) = @_;
1557		2405
1558	$self->reset_at <= $cf::RUNTIME	2406	$self->reset_at <= $cf::RUNTIME
1559	}	2407	}
1560		2408
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->{path}->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2409	sub reset {
1575	my ($self) = @_;	2410	my ($self) = @_;
1576		2411
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2412	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2413
1579	return if $self->players;	2414	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2415
1582	warn "resetting map ", $self->path;#d#	2416	cf::trace "resetting map ", $self->path, "\n";
		2417
		2418	$self->in_memory (cf::MAP_SWAPPED);
		2419
		2420	# need to save uniques path
		2421	unless ($self->{deny_save}) {
		2422	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2423
		2424	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2425	if $uniq;
		2426	}
1583		2427
1584	delete $cf::MAP{$self->path};	2428	delete $cf::MAP{$self->path};
1585		2429
		2430	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2431	$_->clear_links_to ($self) for values %cf::MAP;
		2432	$self->clear;
1587		2433
1588	$self->{path}->unlink_save;	2434	$self->unlink_save;
1589	$self->destroy;	2435	$self->destroy;
1590	}	2436	}
1591		2437
1592	my $nuke_counter = "aaaa";	2438	my $nuke_counter = "aaaa";
1593		2439
1594	sub nuke {	2440	sub nuke {
1595	my ($self) = @_;	2441	my ($self) = @_;
1596		2442
		2443	{
		2444	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2445
		2446	delete $cf::MAP{$self->path};
		2447
		2448	$self->unlink_save;
		2449
		2450	bless $self, "cf::map::wrap";
		2451	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2452	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2453	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2454	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2455
		2456	$cf::MAP{$self->path} = $self;
		2457	}
		2458
1600	$self->reset; # polite request, might not happen	2459	$self->reset; # polite request, might not happen
1601	}	2460	}
1602		2461
1603	sub customise_for {	2462	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2463
1606	if ($map->per_player) {	2464	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2465	maps. May block.
		2466
		2467	=cut
		2468
		2469	sub tmp_maps() {
1608	}	2470	[
		2471	map {
		2472	utf8::decode $_;
		2473	/\.map$/
		2474	? normalise $_
		2475	: ()
		2476	} @{ aio_readdir $TMPDIR or [] }
		2477	]
		2478	}
1609		2479
1610	$map	2480	=item $maps = cf::map::random_maps
		2481
		2482	Returns an arrayref with all map paths of currently instantiated and saved
		2483	random maps. May block.
		2484
		2485	=cut
		2486
		2487	sub random_maps() {
		2488	[
		2489	map {
		2490	utf8::decode $_;
		2491	/\.map$/
		2492	? normalise "?random/$_"
		2493	: ()
		2494	} @{ aio_readdir $RANDOMDIR or [] }
		2495	]
1611	}	2496	}
1612		2497
1613	=item cf::map::unique_maps	2498	=item cf::map::unique_maps
1614		2499
1615	Returns an arrayref of cf::path's of all shared maps that have	2500	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2501	instantiated unique items. May block.
1617		2502
1618	=cut	2503	=cut
1619		2504
1620	sub unique_maps() {	2505	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2506	[
1622	or return;	2507	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2508	utf8::decode $_;
1628	next if /\.pst$/;	2509	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2510	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2511	? ()
1631	push @paths, new cf::path $_;	2512	: normalise $_
		2513	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2514	]
1633
1634	\@paths
1635	}	2515	}
1636		2516
1637	package cf;	2517	=item cf::map::static_maps
		2518
		2519	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2520	file in the shared directory excluding F</styles> and F</editor>). May
		2521	block.
		2522
		2523	=cut
		2524
		2525	sub static_maps() {
		2526	my @dirs = "";
		2527	my @maps;
		2528
		2529	while (@dirs) {
		2530	my $dir = shift @dirs;
		2531
		2532	next if $dir eq "/styles" || $dir eq "/editor";
		2533
		2534	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2535	or return;
		2536
		2537	for (@$files) {
		2538	s/\.map$// or next;
		2539	utf8::decode $_;
		2540	push @maps, "$dir/$_";
		2541	}
		2542
		2543	push @dirs, map "$dir/$_", @$dirs;
		2544	}
		2545
		2546	\@maps
		2547	}
1638		2548
1639	=back	2549	=back
1640		2550
1641	=head3 cf::object	2551	=head3 cf::object
1642		2552
…		…
1646		2556
1647	=over 4	2557	=over 4
1648		2558
1649	=item $ob->inv_recursive	2559	=item $ob->inv_recursive
1650		2560
1651	Returns the inventory of the object _and_ their inventories, recursively.	2561	Returns the inventory of the object I<and> their inventories, recursively,
		2562	but I<not> the object itself.
1652		2563
1653	=cut	2564	=cut
1654		2565
1655	sub inv_recursive_;	2566	sub inv_recursive_;
1656	sub inv_recursive_ {	2567	sub inv_recursive_ {
…		…
1659		2570
1660	sub inv_recursive {	2571	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2572	inv_recursive_ inv $_[0]
1662	}	2573	}
1663		2574
		2575	=item $ref = $ob->ref
		2576
		2577	Creates and returns a persistent reference to an object that can be stored as a string.
		2578
		2579	=item $ob = cf::object::deref ($refstring)
		2580
		2581	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2582	even if the object actually exists. May block.
		2583
		2584	=cut
		2585
		2586	sub deref {
		2587	my ($ref) = @_;
		2588
		2589	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2590	my ($uuid, $name) = ($1, $2);
		2591	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2592	or return;
		2593	$pl->ob->uuid eq $uuid
		2594	or return;
		2595
		2596	$pl->ob
		2597	} else {
		2598	warn "$ref: cannot resolve object reference\n";
		2599	undef
		2600	}
		2601	}
		2602
1664	package cf;	2603	package cf;
1665		2604
1666	=back	2605	=back
1667		2606
1668	=head3 cf::object::player	2607	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2613	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2614	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2615	dialogue with the given NPC character.
1677		2616
1678	=cut	2617	=cut
		2618
		2619	our $SAY_CHANNEL = {
		2620	id => "say",
		2621	title => "Map",
		2622	reply => "say ",
		2623	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2624	};
		2625
		2626	our $CHAT_CHANNEL = {
		2627	id => "chat",
		2628	title => "Chat",
		2629	reply => "chat ",
		2630	tooltip => "Player chat and shouts, global to the server.",
		2631	};
1679		2632
1680	# rough implementation of a future "reply" method that works	2633	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2634	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2635	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2636	sub cf::object::player::reply($$$;$) {
…		…
1685		2638
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2639	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2640
1688	if ($self->{record_replies}) {	2641	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2642	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2643
1690	} else {	2644	} else {
		2645	my $pl = $self->contr;
		2646
		2647	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2648	my $dialog = $pl->{npc_dialog};
		2649	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2650
		2651	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2652	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2653	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2654	}
1693	}	2655	}
		2656	}
		2657
		2658	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2659
		2660	=cut
		2661
		2662	sub cf::object::send_msg {
		2663	my $pl = shift->contr
		2664	or return;
		2665	$pl->send_msg (@_);
1694	}	2666	}
1695		2667
1696	=item $player_object->may ("access")	2668	=item $player_object->may ("access")
1697		2669
1698	Returns wether the given player is authorized to access resource "access"	2670	Returns wether the given player is authorized to access resource "access"
…		…
1711		2683
1712	=item $player_object->enter_link	2684	=item $player_object->enter_link
1713		2685
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2686	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2687
1716	The player should be reaosnably safe there for short amounts of time. You	2688	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2689	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2690	though, as the player cannot control the character while it is on the link
		2691	map.
		2692
		2693	Will never block.
1718		2694
1719	=item $player_object->leave_link ($map, $x, $y)	2695	=item $player_object->leave_link ($map, $x, $y)
1720		2696
1721	Moves the player out of the specila link map onto the given map. If the	2697	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2698	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2699	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2700	fails, to the emergency map position.
1725		2701
1726	Might block.	2702	Might block.
1727		2703
1728	=cut	2704	=cut
		2705
		2706	sub link_map {
		2707	unless ($LINK_MAP) {
		2708	$LINK_MAP = cf::map::find "{link}"
		2709	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2710	$LINK_MAP->load;
		2711	}
		2712
		2713	$LINK_MAP
		2714	}
1729		2715
1730	sub cf::object::player::enter_link {	2716	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2717	my ($self) = @_;
1732		2718
1733	$self->deactivate_recursive;	2719	$self->deactivate_recursive;
1734		2720
1735	return if $self->map == $LINK_MAP;	2721	++$self->{_link_recursion};
		2722
		2723	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2724
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2725	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2726	if $self->map && $self->map->{path} ne "{link}";
1739		2727
1740	$self->enter_map ($LINK_MAP, 20, 20);	2728	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2729	}
1742		2730
1743	sub cf::object::player::leave_link {	2731	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2732	my ($self, $map, $x, $y) = @_;
		2733
		2734	return unless $self->contr->active;
1745		2735
1746	my $link_pos = delete $self->{_link_pos};	2736	my $link_pos = delete $self->{_link_pos};
1747		2737
1748	unless ($map) {	2738	unless ($map) {
1749	# restore original map position	2739	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2750	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2751	unless (defined $x) && (defined $y);
1762		2752
1763	# use -1 or undef as default coordinates, not 0, 0	2753	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2754	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2755	if $x <= 0 && $y <= 0;
1766		2756
1767	$map->load;	2757	$map->load;
1768	$map->load_diag;	2758	$map->load_neighbours;
1769		2759
1770	return unless $self->contr->active;	2760	return unless $self->contr->active;
		2761
		2762	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2763	if ($self->enter_map ($map, $x, $y)) {
		2764	# entering was successful
		2765	delete $self->{_link_recursion};
		2766	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2767	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2768	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2769
1789	# try to abort aborted map switching on player login :)	2770	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2771
1807	=item $player_object->goto ($path, $x, $y)	2772	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2773
		2774	Moves the player to the given map-path and coordinates by first freezing
		2775	her, loading and preparing them map, calling the provided $check callback
		2776	that has to return the map if sucecssful, and then unfreezes the player on
		2777	the new (success) or old (failed) map position. In either case, $done will
		2778	be called at the end of this process.
		2779
		2780	Note that $check will be called with a potentially non-loaded map, so if
		2781	it needs a loaded map it has to call C<< ->load >>.
		2782
1809	=cut	2783	=cut
		2784
		2785	our $GOTOGEN;
1810		2786
1811	sub cf::object::player::goto {	2787	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2788	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2789
1814	$path = new cf::path $path;	2790	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2791	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2792	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2793	($path, $x, $y) = @$EMERGENCY_POSITION;
		2794	}
		2795
		2796	# do generation counting so two concurrent goto's will be executed in-order
		2797	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2798
1816	$self->enter_link;	2799	$self->enter_link;
1817		2800
1818	(async {	2801	(async {
1819	my $map = cf::map::find $path->as_string;	2802	$Coro::current->{desc} = "player::goto $path $x $y";
		2803
		2804	# *tag paths override both path and x|y
		2805	if ($path =~ /^\*(.*)$/) {
		2806	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2807	my $ob = $obs[rand @obs];
		2808
		2809	# see if we actually can go there
		2810	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2811	$ob = $obs[rand @obs];
		2812	} else {
		2813	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2814	}
		2815	# else put us there anyways for now #d#
		2816
		2817	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2818	} else {
		2819	($path, $x, $y) = (undef, undef, undef);
		2820	}
		2821	}
		2822
		2823	my $map = eval {
		2824	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2825
		2826	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2827	$map = $map->customise_for ($self);
1821		2828	$map = $check->($map, $x, $y, $self) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2829	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2830	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	}
1826		2832
		2833	$map
		2834	};
		2835
		2836	if ($@) {
		2837	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2838	LOG llevError | logBacktrace, Carp::longmess $@;
		2839	}
		2840
		2841	if ($gen == $self->{_goto_generation}) {
		2842	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2843	$self->leave_link ($map, $x, $y);
		2844	}
		2845
		2846	$done->($self) if $done;
1828	})->prio (1);	2847	})->prio (1);
1829	}	2848	}
1830		2849
1831	=item $player_object->enter_exit ($exit_object)	2850	=item $player_object->enter_exit ($exit_object)
1832		2851
…		…
1834		2853
1835	sub parse_random_map_params {	2854	sub parse_random_map_params {
1836	my ($spec) = @_;	2855	my ($spec) = @_;
1837		2856
1838	my $rmp = { # defaults	2857	my $rmp = { # defaults
1839	xsize => 10,	2858	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2859	ysize => (cf::rndm 15, 40),
		2860	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2861	#layout => string,
1841	};	2862	};
1842		2863
1843	for (split /\n/, $spec) {	2864	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2865	my ($k, $v) = split /\s+/, $_, 2;
1845		2866
…		…
1857	# that depends on the exit object	2878	# that depends on the exit object
1858		2879
1859	my $rmp = parse_random_map_params $exit->msg;	2880	my $rmp = parse_random_map_params $exit->msg;
1860		2881
1861	if ($exit->map) {	2882	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2883	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2884	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2885	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2886	$rmp->{origin_y} = $exit->y;
		2887
		2888	$exit->map->touch;
1866	}	2889	}
1867		2890
1868	$rmp->{random_seed} ||= $exit->random_seed;	2891	$rmp->{random_seed} ||= $exit->random_seed;
1869		2892
1870	my $data = cf::to_json $rmp;	2893	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2894	my $md5 = Digest::MD5::md5_hex $data;
		2895	my $meta = "$RANDOMDIR/$md5.meta";
1872		2896
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2897	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2898	aio_write $fh, 0, (length $data), $data, 0;
		2899	undef $fh;
		2900	aio_rename "$meta~", $meta;
1875		2901
		2902	my $slaying = "?random/$md5";
		2903
		2904	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2905	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2906	$exit->msg (undef);
		2907	}
1878	}	2908	}
1879	}	2909	}
1880		2910
1881	sub cf::object::player::enter_exit {	2911	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2912	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2914	return unless $self->type == cf::PLAYER;
1885		2915
1886	$self->enter_link;	2916	$self->enter_link;
1887		2917
1888	(async {	2918	(async {
1889	$self->deactivate_recursive; # just to be sure	2919	$Coro::current->{desc} = "enter_exit";
		2920
1890	unless (eval {	2921	unless (eval {
		2922	$self->deactivate_recursive; # just to be sure
		2923
		2924	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2925	my $x = $exit->stats->hp;
		2926	my $y = $exit->stats->sp;
		2927
		2928	# special map handling
		2929	my $slaying = $exit->slaying;
		2930
		2931	# special map handling
		2932	if ($slaying eq "/!") {
		2933	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2934
1891	prepare_random_map $exit	2935	prepare_random_map $exit
1892	if $exit->slaying eq "/!";	2936	if $slaying eq "/!"; # need to re-check after getting the lock
1893		2937
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2938	} elsif ($slaying eq '!up') {
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2939	$map = $exit->map->tile_path (cf::TILE_UP);
		2940	$x = $exit->x;
		2941	$y = $exit->y;
1896		2942
		2943	} elsif ($slaying eq '!down') {
		2944	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2945	$x = $exit->x;
		2946	$y = $exit->y;
		2947	}
		2948
		2949	$self->goto ($map, $x, $y);
		2950
		2951	# if exit is damned, update players death & WoR home-position
		2952	$self->contr->savebed ($map, $x, $y)
		2953	if $exit->flag (cf::FLAG_DAMNED);
		2954
1897	1;	2955	1
1898	}) {	2956	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2957	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	2958	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2959	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2960	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2961
1904	warn "ERROR in enter_exit: $@";	2962	error "ERROR in enter_exit: $@";
1905	$self->leave_link;	2963	$self->leave_link;
1906	}	2964	}
1907	})->prio (1);	2965	})->prio (1);
1908	}	2966	}
1909		2967
…		…
1920		2978
1921	sub cf::client::send_drawinfo {	2979	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2980	my ($self, $text, $flags) = @_;
1923		2981
1924	utf8::encode $text;	2982	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2983	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2984	}
1927		2985
		2986	=item $client->send_big_packet ($pkt)
		2987
		2988	Like C<send_packet>, but tries to compress large packets, and fragments
		2989	them as required.
		2990
		2991	=cut
		2992
		2993	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2994
		2995	sub cf::client::send_big_packet {
		2996	my ($self, $pkt) = @_;
		2997
		2998	# try lzf for large packets
		2999	$pkt = "lzf " . Compress::LZF::compress $pkt
		3000	if 1024 <= length $pkt and $self->{can_lzf};
		3001
		3002	# split very large packets
		3003	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3004	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3005	$pkt = "frag";
		3006	}
		3007
		3008	$self->send_packet ($pkt);
		3009	}
		3010
		3011	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3012
		3013	Send a drawinfo or msg packet to the client, formatting the msg for the
		3014	client if neccessary. C<$type> should be a string identifying the type of
		3015	the message, with C<log> being the default. If C<$color> is negative, suppress
		3016	the message unless the client supports the msg packet.
		3017
		3018	=cut
		3019
		3020	# non-persistent channels (usually the info channel)
		3021	our %CHANNEL = (
		3022	"c/motd" => {
		3023	id => "infobox",
		3024	title => "MOTD",
		3025	reply => undef,
		3026	tooltip => "The message of the day",
		3027	},
		3028	"c/identify" => {
		3029	id => "infobox",
		3030	title => "Identify",
		3031	reply => undef,
		3032	tooltip => "Items recently identified",
		3033	},
		3034	"c/examine" => {
		3035	id => "infobox",
		3036	title => "Examine",
		3037	reply => undef,
		3038	tooltip => "Signs and other items you examined",
		3039	},
		3040	"c/shopinfo" => {
		3041	id => "infobox",
		3042	title => "Shop Info",
		3043	reply => undef,
		3044	tooltip => "What your bargaining skill tells you about the shop",
		3045	},
		3046	"c/book" => {
		3047	id => "infobox",
		3048	title => "Book",
		3049	reply => undef,
		3050	tooltip => "The contents of a note or book",
		3051	},
		3052	"c/lookat" => {
		3053	id => "infobox",
		3054	title => "Look",
		3055	reply => undef,
		3056	tooltip => "What you saw there",
		3057	},
		3058	"c/who" => {
		3059	id => "infobox",
		3060	title => "Players",
		3061	reply => undef,
		3062	tooltip => "Shows players who are currently online",
		3063	},
		3064	"c/body" => {
		3065	id => "infobox",
		3066	title => "Body Parts",
		3067	reply => undef,
		3068	tooltip => "Shows which body parts you posess and are available",
		3069	},
		3070	"c/statistics" => {
		3071	id => "infobox",
		3072	title => "Statistics",
		3073	reply => undef,
		3074	tooltip => "Shows your primary statistics",
		3075	},
		3076	"c/skills" => {
		3077	id => "infobox",
		3078	title => "Skills",
		3079	reply => undef,
		3080	tooltip => "Shows your experience per skill and item power",
		3081	},
		3082	"c/shopitems" => {
		3083	id => "infobox",
		3084	title => "Shop Items",
		3085	reply => undef,
		3086	tooltip => "Shows the items currently for sale in this shop",
		3087	},
		3088	"c/resistances" => {
		3089	id => "infobox",
		3090	title => "Resistances",
		3091	reply => undef,
		3092	tooltip => "Shows your resistances",
		3093	},
		3094	"c/pets" => {
		3095	id => "infobox",
		3096	title => "Pets",
		3097	reply => undef,
		3098	tooltip => "Shows information abotu your pets/a specific pet",
		3099	},
		3100	"c/perceiveself" => {
		3101	id => "infobox",
		3102	title => "Perceive Self",
		3103	reply => undef,
		3104	tooltip => "You gained detailed knowledge about yourself",
		3105	},
		3106	"c/uptime" => {
		3107	id => "infobox",
		3108	title => "Uptime",
		3109	reply => undef,
		3110	tooltip => "How long the server has been running since last restart",
		3111	},
		3112	"c/mapinfo" => {
		3113	id => "infobox",
		3114	title => "Map Info",
		3115	reply => undef,
		3116	tooltip => "Information related to the maps",
		3117	},
		3118	"c/party" => {
		3119	id => "party",
		3120	title => "Party",
		3121	reply => "gsay ",
		3122	tooltip => "Messages and chat related to your party",
		3123	},
		3124	"c/death" => {
		3125	id => "death",
		3126	title => "Death",
		3127	reply => undef,
		3128	tooltip => "Reason for and more info about your most recent death",
		3129	},
		3130	"c/say" => $SAY_CHANNEL,
		3131	"c/chat" => $CHAT_CHANNEL,
		3132	);
		3133
		3134	sub cf::client::send_msg {
		3135	my ($self, $channel, $msg, $color, @extra) = @_;
		3136
		3137	$msg = $self->pl->expand_cfpod ($msg)
		3138	unless $color & cf::NDI_VERBATIM;
		3139
		3140	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3141
		3142	# check predefined channels, for the benefit of C
		3143	if ($CHANNEL{$channel}) {
		3144	$channel = $CHANNEL{$channel};
		3145
		3146	$self->ext_msg (channel_info => $channel);
		3147	$channel = $channel->{id};
		3148
		3149	} elsif (ref $channel) {
		3150	# send meta info to client, if not yet sent
		3151	unless (exists $self->{channel}{$channel->{id}}) {
		3152	$self->{channel}{$channel->{id}} = $channel;
		3153	$self->ext_msg (channel_info => $channel);
		3154	}
		3155
		3156	$channel = $channel->{id};
		3157	}
		3158
		3159	return unless @extra || length $msg;
		3160
		3161	# default colour, mask it out
		3162	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3163	if $color & cf::NDI_DEF;
		3164
		3165	my $pkt = "msg "
		3166	. $self->{json_coder}->encode (
		3167	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3168	);
		3169
		3170	$self->send_big_packet ($pkt);
		3171	}
		3172
		3173	=item $client->ext_msg ($type, @msg)
		3174
		3175	Sends an ext event to the client.
		3176
		3177	=cut
		3178
		3179	sub cf::client::ext_msg($$@) {
		3180	my ($self, $type, @msg) = @_;
		3181
		3182	if ($self->extcmd == 2) {
		3183	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3184	} elsif ($self->extcmd == 1) { # TODO: remove
		3185	push @msg, msgtype => "event_$type";
		3186	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3187	}
		3188	}
		3189
		3190	=item $client->ext_reply ($msgid, @msg)
		3191
		3192	Sends an ext reply to the client.
		3193
		3194	=cut
		3195
		3196	sub cf::client::ext_reply($$@) {
		3197	my ($self, $id, @msg) = @_;
		3198
		3199	if ($self->extcmd == 2) {
		3200	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3201	} elsif ($self->extcmd == 1) {
		3202	#TODO: version 1, remove
		3203	unshift @msg, msgtype => "reply", msgid => $id;
		3204	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3205	}
		3206	}
1928		3207
1929	=item $success = $client->query ($flags, "text", \&cb)	3208	=item $success = $client->query ($flags, "text", \&cb)
1930		3209
1931	Queues a query to the client, calling the given callback with	3210	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3211	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3212	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		3213
1935	Queries can fail, so check the return code. Or don't, as queries will become	3214	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	3215	become reliable at some point in the future.
1937		3216
1938	=cut	3217	=cut
1939		3218
1940	sub cf::client::query {	3219	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3220	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3228	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3229	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3230
1952	$self->send_packet ($self->{query_queue}[0][0])	3231	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	3232	if @{ $self->{query_queue} } == 1;
		3233
		3234	1
1954	}	3235	}
1955		3236
1956	cf::client->attach (	3237	cf::client->attach (
		3238	on_connect => sub {
		3239	my ($ns) = @_;
		3240
		3241	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3242	},
1957	on_reply => sub {	3243	on_reply => sub {
1958	my ($ns, $msg) = @_;	3244	my ($ns, $msg) = @_;
1959		3245
1960	# this weird shuffling is so that direct followup queries	3246	# this weird shuffling is so that direct followup queries
1961	# get handled first	3247	# get handled first
1962	my $queue = delete $ns->{query_queue}	3248	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3249	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3250
1965	(shift @$queue)->[1]->($msg);	3251	(shift @$queue)->[1]->($msg);
		3252	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3253
1967	push @{ $ns->{query_queue} }, @$queue;	3254	push @{ $ns->{query_queue} }, @$queue;
1968		3255
1969	if (@{ $ns->{query_queue} } == @$queue) {	3256	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3257	if (@$queue) {
…		…
1972	} else {	3259	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3260	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3261	}
1975	}	3262	}
1976	},	3263	},
		3264	on_exticmd => sub {
		3265	my ($ns, $buf) = @_;
		3266
		3267	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3268
		3269	if (ref $msg) {
		3270	my ($type, $reply, @payload) =
		3271	"ARRAY" eq ref $msg
		3272	? @$msg
		3273	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3274
		3275	my @reply;
		3276
		3277	if (my $cb = $EXTICMD{$type}) {
		3278	@reply = $cb->($ns, @payload);
		3279	}
		3280
		3281	$ns->ext_reply ($reply, @reply)
		3282	if $reply;
		3283
		3284	} else {
		3285	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3286	}
		3287
		3288	cf::override;
		3289	},
1977	);	3290	);
1978		3291
1979	=item $client->async (\&cb)	3292	=item $client->async (\&cb)
1980		3293
1981	Create a new coroutine, running the specified callback. The coroutine will	3294	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3310
1998	$coro	3311	$coro
1999	}	3312	}
2000		3313
2001	cf::client->attach (	3314	cf::client->attach (
2002	on_destroy => sub {	3315	on_client_destroy => sub {
2003	my ($ns) = @_;	3316	my ($ns) = @_;
2004		3317
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3318	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3319	},
2007	);	3320	);
…		…
2022	our $safe = new Safe "safe";	3335	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3336	our $safe_hole = new Safe::Hole;
2024		3337
2025	$SIG{FPE} = 'IGNORE';	3338	$SIG{FPE} = 'IGNORE';
2026		3339
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3340	$safe->permit_only (Opcode::opset qw(
		3341	:base_core :base_mem :base_orig :base_math :base_loop
		3342	grepstart grepwhile mapstart mapwhile
		3343	sort time
		3344	));
2028		3345
2029	# here we export the classes and methods available to script code	3346	# here we export the classes and methods available to script code
2030		3347
2031	=pod	3348	=pod
2032		3349
2033	The following fucntions and emthods are available within a safe environment:	3350	The following functions and methods are available within a safe environment:
2034		3351
2035	cf::object contr pay_amount pay_player map	3352	cf::object
		3353	contr pay_amount pay_player map x y force_find force_add destroy
		3354	insert remove name archname title slaying race decrease split
		3355	value
		3356
2036	cf::object::player player	3357	cf::object::player
2037	cf::player peaceful	3358	player
2038	cf::map trigger	3359
		3360	cf::player
		3361	peaceful
		3362
		3363	cf::map
		3364	trigger
2039		3365
2040	=cut	3366	=cut
2041		3367
2042	for (	3368	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3369	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3370	insert remove inv nrof name archname title slaying race
		3371	decrease split destroy change_exp value msg lore send_msg)],
2044	["cf::object::player" => qw(player)],	3372	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3373	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3374	["cf::map" => qw(trigger)],
2047	) {	3375	) {
2048	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3376	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3377	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2051	for @funs;	3378	for @funs;
2052	}	3379	}
2053		3380
…		…
2068		3395
2069	my $qcode = $code;	3396	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3397	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3398	$qcode =~ s/\n/\\n/g;
2072		3399
		3400	%vars = (_dummy => 0) unless %vars;
		3401
		3402	my @res;
2073	local $_;	3403	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3404
2076	my $eval =	3405	my $eval =
2077	"do {\n"	3406	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3407	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3408	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3409	. $code
2081	. "\n}"	3410	. "\n}"
2082	;	3411	;
2083		3412
		3413	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3414	sub_generation_inc;
		3415	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3416	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	sub_generation_inc;	3417	sub_generation_inc;
		3418	} else {
		3419	local @cf::_safe_eval_args = values %vars;
		3420	@res = wantarray ? eval eval : scalar eval $eval;
		3421	}
2087		3422
2088	if ($@) {	3423	if ($@) {
2089	warn "$@";	3424	warn "$@",
2090	warn "while executing safe code '$code'\n";	3425	"while executing safe code '$code'\n",
2091	warn "with arguments " . (join " ", %vars) . "\n";	3426	"with arguments " . (join " ", %vars) . "\n";
2092	}	3427	}
2093		3428
2094	wantarray ? @res : $res[0]	3429	wantarray ? @res : $res[0]
2095	}	3430	}
2096		3431
…		…
2110	=cut	3445	=cut
2111		3446
2112	sub register_script_function {	3447	sub register_script_function {
2113	my ($fun, $cb) = @_;	3448	my ($fun, $cb) = @_;
2114		3449
2115	no strict 'refs';	3450	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3451	*$fun = $safe_hole->wrap ($cb);
2117	}	3452	}
2118		3453
2119	=back	3454	=back
2120		3455
2121	=cut	3456	=cut
2122		3457
2123	#############################################################################	3458	#############################################################################
		3459	# the server's init and main functions
2124		3460
2125	=head2 EXTENSION DATABASE SUPPORT	3461	sub load_facedata($) {
		3462	my ($path) = @_;
2126		3463
2127	Crossfire maintains a very simple database for extension use. It can	3464	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3465	# for this (global event?)
2129	excludes objects.	3466	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3467
2131	The parameter C<$family> should best start with the name of the extension	3468	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3469
2134	=over 4	3470	trace "loading facedata from $path\n";
2135		3471
2136	=item $hashref = cf::db_get $family	3472	my $facedata = decode_storable load_file $path;
2137		3473
2138	Return a hashref for use by the extension C<$family>, which can be	3474	$facedata->{version} == 2
2139	modified. After modifications, you have to call C<cf::db_dirty> or	3475	or cf::cleanup "$path: version mismatch, cannot proceed.";
2140	C<cf::db_sync>.
2141		3476
2142	=item $value = cf::db_get $family => $key	3477	# patch in the exptable
2143		3478	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2144	Returns a single value from the database	3479	$facedata->{resource}{"res/exp_table"} = {
2145		3480	type => FT_RSRC,
2146	=item cf::db_put $family => $hashref	3481	data => $exp_table,
2147		3482	hash => (Digest::MD5::md5 $exp_table),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3483	};
		3484	cf::cede_to_tick;
2197		3485
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3486	{
		3487	my $faces = $facedata->{faceinfo};
2202		3488
2203	sub db_get($;$) {	3489	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3490	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3491
2209	sub db_put($$;$) {	3492	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3493	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3494	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2212	} else {	3495	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2213	$DB->{$_[0]} = $_[1];	3496	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2214	}
2215	db_dirty;
2216	}
2217		3497
2218	cf::global->attach (	3498	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3499	}
2223	);
2224	}
2225		3500
2226	#############################################################################	3501	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3502	next unless $info->{smooth};
2228		3503
2229	sub cfg_load {	3504	my $idx = cf::face::find $face
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3505	or next;
2231	or return;
2232		3506
2233	local $/;	3507	if (my $smooth = cf::face::find $info->{smooth}) {
2234	*CFG = YAML::Syck::Load <$fh>;	3508	cf::face::set_smooth $idx, $smooth;
		3509	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3510	} else {
		3511	error "smooth face '$info->{smooth}' not found for face '$face'";
		3512	}
2235		3513
		3514	cf::cede_to_tick;
		3515	}
		3516	}
		3517
		3518	{
		3519	my $anims = $facedata->{animinfo};
		3520
		3521	while (my ($anim, $info) = each %$anims) {
		3522	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3523	cf::cede_to_tick;
		3524	}
		3525
		3526	cf::anim::invalidate_all; # d'oh
		3527	}
		3528
		3529	{
		3530	my $res = $facedata->{resource};
		3531
		3532	while (my ($name, $info) = each %$res) {
		3533	if (defined $info->{type}) {
		3534	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3535
		3536	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3537	cf::face::set_type $idx, $info->{type};
		3538	} else {
		3539	$RESOURCE{$name} = $info; # unused
		3540	}
		3541
		3542	cf::cede_to_tick;
		3543	}
		3544	}
		3545
		3546	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3547
		3548	1
		3549	}
		3550
		3551	register_exticmd fx_want => sub {
		3552	my ($ns, $want) = @_;
		3553
		3554	while (my ($k, $v) = each %$want) {
		3555	$ns->fx_want ($k, $v);
		3556	}
		3557	};
		3558
		3559	sub load_resource_file($) {
		3560	my $guard = lock_acquire "load_resource_file";
		3561
		3562	my $status = load_resource_file_ $_[0];
		3563	get_slot 0.1, 100;
		3564	cf::arch::commit_load;
		3565
		3566	$status
		3567	}
		3568
		3569	sub reload_regions {
		3570	# HACK to clear player env face cache, we need some signal framework
		3571	# for this (global event?)
		3572	%ext::player_env::MUSIC_FACE_CACHE = ();
		3573
		3574	load_resource_file "$MAPDIR/regions"
		3575	or die "unable to load regions file\n";
		3576
		3577	for (cf::region::list) {
		3578	$_->{match} = qr/$_->{match}/
		3579	if exists $_->{match};
		3580	}
		3581	}
		3582
		3583	sub reload_facedata {
		3584	load_facedata "$DATADIR/facedata"
		3585	or die "unable to load facedata\n";
		3586	}
		3587
		3588	sub reload_archetypes {
		3589	load_resource_file "$DATADIR/archetypes"
		3590	or die "unable to load archetypes\n";
		3591	}
		3592
		3593	sub reload_treasures {
		3594	load_resource_file "$DATADIR/treasures"
		3595	or die "unable to load treasurelists\n";
		3596	}
		3597
		3598	sub reload_sound {
		3599	trace "loading sound config from $DATADIR/sound\n";
		3600
		3601	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3602
		3603	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3604	my $sound = $soundconf->{compat}[$_]
		3605	or next;
		3606
		3607	my $face = cf::face::find "sound/$sound->[1]";
		3608	cf::sound::set $sound->[0] => $face;
		3609	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3610	}
		3611
		3612	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3613	my $face = cf::face::find "sound/$v";
		3614	cf::sound::set $k => $face;
		3615	}
		3616	}
		3617
		3618	sub reload_resources {
		3619	trace "reloading resource files...\n";
		3620
		3621	reload_exp_table;
		3622	reload_materials;
		3623	reload_facedata;
		3624	reload_sound;
		3625	reload_archetypes;
		3626	reload_regions;
		3627	reload_treasures;
		3628
		3629	trace "finished reloading resource files\n";
		3630	}
		3631
		3632	sub reload_config {
		3633	trace "reloading config file...\n";
		3634
		3635	my $config = load_file "$CONFDIR/config";
		3636	utf8::decode $config;
		3637	*CFG = decode_yaml $config;
		3638
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3639	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2237		3640
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3641	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3642	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2240		3643
2241	if (exists $CFG{mlockall}) {	3644	if (exists $CFG{mlockall}) {
…		…
2245	};	3648	};
2246	warn $@ if $@;	3649	warn $@ if $@;
2247	}	3650	}
2248	}	3651	}
2249		3652
		3653	sub pidfile() {
		3654	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3655	or die "$PIDFILE: $!";
		3656	flock $fh, &Fcntl::LOCK_EX
		3657	or die "$PIDFILE: flock: $!";
		3658	$fh
		3659	}
		3660
		3661	# make sure only one server instance is running at any one time
		3662	sub atomic {
		3663	my $fh = pidfile;
		3664
		3665	my $pid = <$fh>;
		3666	kill 9, $pid if $pid > 0;
		3667
		3668	seek $fh, 0, 0;
		3669	print $fh $$;
		3670	}
		3671
		3672	sub main_loop {
		3673	trace "EV::loop starting\n";
		3674	if (1) {
		3675	EV::loop;
		3676	}
		3677	trace "EV::loop returned\n";
		3678	goto &main_loop unless $REALLY_UNLOOP;
		3679	}
		3680
2250	sub main {	3681	sub main {
		3682	cf::init_globals; # initialise logging
		3683
		3684	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3685	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3686	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3687	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3688
		3689	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3690
2251	# we must not ever block the main coroutine	3691	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3692	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3693	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3694	(async {
		3695	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3696	EV::loop EV::LOOP_ONESHOT;
		3697	})->prio (Coro::PRIO_MAX);
2255	};	3698	};
2256		3699
2257	cfg_load;	3700	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3701
		3702	cf::sync_job {
		3703	cf::incloader::init ();
		3704
		3705	cf::init_anim;
		3706	cf::init_attackmess;
		3707	cf::init_dynamic;
		3708
		3709	cf::load_settings;
		3710
		3711	reload_resources;
		3712	reload_config;
		3713	db_init;
		3714
		3715	cf::init_uuid;
		3716	cf::init_signals;
		3717	cf::init_skills;
		3718
		3719	cf::init_beforeplay;
		3720
		3721	atomic;
		3722
2259	load_extensions;	3723	load_extensions;
2260	Event::loop;	3724
		3725	utime time, time, $RUNTIMEFILE;
		3726
		3727	# no (long-running) fork's whatsoever before this point(!)
		3728	use POSIX ();
		3729	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3730
		3731	cf::_post_init 0;
		3732	};
		3733
		3734	cf::object::thawer::errors_are_fatal 0;
		3735	info "parse errors in files are no longer fatal from this point on.\n";
		3736
		3737	my $free_main; $free_main = EV::idle sub {
		3738	undef $free_main;
		3739	undef &main; # free gobs of memory :)
		3740	};
		3741
		3742	goto &main_loop;
2261	}	3743	}
2262		3744
2263	#############################################################################	3745	#############################################################################
2264	# initialisation and cleanup	3746	# initialisation and cleanup
2265		3747
2266	# install some emergency cleanup handlers	3748	# install some emergency cleanup handlers
2267	BEGIN {	3749	BEGIN {
		3750	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3751	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3752	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3753	cf::cleanup "SIG$signal";
2274	},
2275	);	3754	};
		3755	}
		3756	}
		3757
		3758	sub write_runtime_sync {
		3759	my $t0 = AE::time;
		3760
		3761	# first touch the runtime file to show we are still running:
		3762	# the fsync below can take a very very long time.
		3763
		3764	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3765
		3766	my $guard = cf::lock_acquire "write_runtime";
		3767
		3768	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3769	or return;
		3770
		3771	my $value = $cf::RUNTIME + 90 + 10;
		3772	# 10 is the runtime save interval, for a monotonic clock
		3773	# 60 allows for the watchdog to kill the server.
		3774
		3775	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3776	and return;
		3777
		3778	# always fsync - this file is important
		3779	aio_fsync $fh
		3780	and return;
		3781
		3782	# touch it again to show we are up-to-date
		3783	aio_utime $fh, undef, undef;
		3784
		3785	close $fh
		3786	or return;
		3787
		3788	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3789	and return;
		3790
		3791	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3792
2276	}	3793	1
		3794	}
		3795
		3796	our $uuid_lock;
		3797	our $uuid_skip;
		3798
		3799	sub write_uuid_sync($) {
		3800	$uuid_skip ||= $_[0];
		3801
		3802	return if $uuid_lock;
		3803	local $uuid_lock = 1;
		3804
		3805	my $uuid = "$LOCALDIR/uuid";
		3806
		3807	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3808	or return;
		3809
		3810	my $value = uuid_seq uuid_cur;
		3811
		3812	unless ($value) {
		3813	info "cowardly refusing to write zero uuid value!\n";
		3814	return;
		3815	}
		3816
		3817	my $value = uuid_str $value + $uuid_skip;
		3818	$uuid_skip = 0;
		3819
		3820	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3821	and return;
		3822
		3823	# always fsync - this file is important
		3824	aio_fsync $fh
		3825	and return;
		3826
		3827	close $fh
		3828	or return;
		3829
		3830	aio_rename "$uuid~", $uuid
		3831	and return;
		3832
		3833	trace "uuid file written ($value).\n";
		3834
		3835	1
		3836
		3837	}
		3838
		3839	sub write_uuid($$) {
		3840	my ($skip, $sync) = @_;
		3841
		3842	$sync ? write_uuid_sync $skip
		3843	: async { write_uuid_sync $skip };
2277	}	3844	}
2278		3845
2279	sub emergency_save() {	3846	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3847	my $freeze_guard = cf::freeze_mainloop;
2281		3848
2282	warn "enter emergency perl save\n";	3849	info "emergency_perl_save: enter\n";
		3850
		3851	# this is a trade-off: we want to be very quick here, so
		3852	# save all maps without fsync, and later call a global sync
		3853	# (which in turn might be very very slow)
		3854	local $USE_FSYNC = 0;
2283		3855
2284	cf::sync_job {	3856	cf::sync_job {
		3857	cf::write_runtime_sync; # external watchdog should not bark
		3858
2285	# use a peculiar iteration method to avoid tripping on perl	3859	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3860	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3861	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3862	info "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3863	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3864	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3865	$pl->valid or next;
		3866	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3867	$pl->save;
2293	}	3868	}
2294	warn "end emergency player save\n";	3869	info "emergency_perl_save: end player save\n";
2295		3870
2296	warn "begin emergency map save\n";	3871	cf::write_runtime_sync; # external watchdog should not bark
		3872
		3873	info "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	3874	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	3875	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3876	$map->valid or next;
2300	$map->save;	3877	$map->save;
2301	}	3878	}
2302	warn "end emergency map save\n";	3879	info "emergency_perl_save: end map save\n";
		3880
		3881	cf::write_runtime_sync; # external watchdog should not bark
		3882
		3883	info "emergency_perl_save: begin database checkpoint\n";
		3884	BDB::db_env_txn_checkpoint $DB_ENV;
		3885	info "emergency_perl_save: end database checkpoint\n";
		3886
		3887	info "emergency_perl_save: begin write uuid\n";
		3888	write_uuid_sync 1;
		3889	info "emergency_perl_save: end write uuid\n";
		3890
		3891	cf::write_runtime_sync; # external watchdog should not bark
		3892
		3893	trace "emergency_perl_save: syncing database to disk";
		3894	BDB::db_env_txn_checkpoint $DB_ENV;
		3895
		3896	info "emergency_perl_save: starting sync\n";
		3897	IO::AIO::aio_sync sub {
		3898	info "emergency_perl_save: finished sync\n";
		3899	};
		3900
		3901	cf::write_runtime_sync; # external watchdog should not bark
		3902
		3903	trace "emergency_perl_save: flushing outstanding aio requests";
		3904	while (IO::AIO::nreqs || BDB::nreqs) {
		3905	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3906	}
		3907
		3908	cf::write_runtime_sync; # external watchdog should not bark
2303	};	3909	};
2304		3910
2305	warn "leave emergency perl save\n";	3911	info "emergency_perl_save: leave\n";
2306	}	3912	}
2307		3913
		3914	sub post_cleanup {
		3915	my ($make_core) = @_;
		3916
		3917	IO::AIO::flush;
		3918
		3919	error Carp::longmess "post_cleanup backtrace"
		3920	if $make_core;
		3921
		3922	my $fh = pidfile;
		3923	unlink $PIDFILE if <$fh> == $$;
		3924	}
		3925
		3926	# a safer delete_package, copied from Symbol
		3927	sub clear_package($) {
		3928	my $pkg = shift;
		3929
		3930	# expand to full symbol table name if needed
		3931	unless ($pkg =~ /^main::.*::$/) {
		3932	$pkg = "main$pkg" if $pkg =~ /^::/;
		3933	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3934	$pkg .= '::' unless $pkg =~ /::$/;
		3935	}
		3936
		3937	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3938	my $stem_symtab = *{$stem}{HASH};
		3939
		3940	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3941	or return;
		3942
		3943	# clear all symbols
		3944	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3945	for my $name (keys %$leaf_symtab) {
		3946	_gv_clear *{"$pkg$name"};
		3947	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3948	}
		3949	}
		3950
2308	sub reload() {	3951	sub do_reload_perl() {
2309	# can/must only be called in main	3952	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3953	unless (in_main) {
2311	warn "can only reload from main coroutine\n";	3954	error "can only reload from main coroutine";
2312	return;	3955	return;
2313	}	3956	}
2314		3957
2315	warn "reloading...";	3958	return if $RELOAD++;
2316		3959
2317	warn "freezing server";	3960	my $t1 = AE::time;
2318	my $guard = freeze_mainloop;	3961
		3962	while ($RELOAD) {
		3963	cf::get_slot 0.1, -1, "reload_perl";
		3964	info "perl_reload: reloading...";
		3965
		3966	trace "perl_reload: entering sync_job";
		3967
		3968	cf::sync_job {
2319	cf::emergency_save;	3969	#cf::emergency_save;
2320		3970
2321	warn "sync database to disk";	3971	trace "perl_reload: cancelling all extension coros";
2322	cf::db_sync;
2323	IO::AIO::flush;
2324
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved
2327
2328	warn "cancel all watchers";
2329	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;	3972	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3973	%EXT_CORO = ();
2336		3974
2337	warn "remove commands";	3975	trace "perl_reload: removing commands";
2338	%COMMAND = ();	3976	%COMMAND = ();
2339		3977
2340	warn "remove ext commands";	3978	trace "perl_reload: removing ext/exti commands";
2341	%EXTCMD = ();	3979	%EXTCMD = ();
		3980	%EXTICMD = ();
2342		3981
2343	warn "unload/nuke all extensions";	3982	trace "perl_reload: unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3983	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3984	trace "... unloading $pkg";
2346		3985
2347	if (my $cb = $pkg->can ("unload")) {	3986	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3987	eval {
2349	$cb->($pkg);	3988	$cb->($pkg);
2350	1	3989	1
2351	} or warn "$pkg unloaded, but with errors: $@";	3990	} or error "$pkg unloaded, but with errors: $@";
		3991	}
		3992
		3993	trace "... clearing $pkg";
		3994	clear_package $pkg;
2352	}	3995	}
2353		3996
2354	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357
2358	warn "unload all perl modules loaded from $LIBDIR";	3997	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3998	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3999	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		4000
2362	warn "removing <$k>";	4001	trace "... unloading $k";
2363	delete $INC{$k};	4002	delete $INC{$k};
2364		4003
2365	$k =~ s/\.pm$//;	4004	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	4005	$k =~ s/\//::/g;
2367		4006
2368	if (my $cb = $k->can ("unload_module")) {	4007	if (my $cb = $k->can ("unload_module")) {
2369	$cb->();	4008	$cb->();
		4009	}
		4010
		4011	clear_package $k;
2370	}	4012	}
2371		4013
2372	Symbol::delete_package $k;
2373	}
2374
2375	warn "get rid of safe::, as good as possible";	4014	trace "perl_reload: getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	4015	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4016	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		4017
2379	warn "unload cf.pm \"a bit\"";	4018	trace "perl_reload: unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	4019	delete $INC{"cf.pm"};
		4020	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		4021
2382	# don't, removes xs symbols, too,	4022	# don't, removes xs symbols, too,
2383	# and global variables created in xs	4023	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	4024	#clear_package __PACKAGE__;
2385		4025
2386	warn "reloading cf.pm";	4026	info "perl_reload: unload completed, starting to reload now";
		4027
		4028	trace "perl_reload: reloading cf.pm";
2387	require cf;	4029	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4030	cf::_connect_to_perl_1;
2389		4031
2390	warn "load config and database again";	4032	trace "perl_reload: loading config and database again";
2391	cf::cfg_load;	4033	cf::reload_config;
2392	cf::db_load;
2393		4034
2394	warn "load extensions";	4035	trace "perl_reload: loading extensions";
2395	cf::load_extensions;	4036	cf::load_extensions;
2396		4037
		4038	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	4039	trace "perl_reload: reattaching attachments to objects/players";
2398	_global_reattach;	4040	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	4041	trace "perl_reload: reattaching attachments to maps";
2400	reattach $_ for values %MAP;	4042	reattach $_ for values %MAP;
		4043	trace "perl_reload: reattaching attachments to players";
		4044	reattach $_ for values %PLAYER;
		4045	}
		4046
		4047	cf::_post_init 1;
		4048
		4049	trace "perl_reload: leaving sync_job";
		4050
		4051	1
		4052	} or do {
		4053	error $@;
		4054	cf::cleanup "perl_reload: error, exiting.";
		4055	};
		4056
		4057	--$RELOAD;
		4058	}
		4059
		4060	$t1 = AE::time - $t1;
		4061	info "perl_reload: completed in ${t1}s\n";
		4062	};
		4063
		4064	our $RELOAD_WATCHER; # used only during reload
		4065
		4066	sub reload_perl() {
		4067	# doing reload synchronously and two reloads happen back-to-back,
		4068	# coro crashes during coro_state_free->destroy here.
		4069
		4070	$RELOAD_WATCHER ||= cf::async {
		4071	Coro::AIO::aio_wait cache_extensions;
		4072
		4073	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4074	do_reload_perl;
		4075	undef $RELOAD_WATCHER;
		4076	};
2401	};	4077	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	4078	}
2454		4079
2455	register_command "reload" => sub {	4080	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	4081	my ($who, $arg) = @_;
2457		4082
2458	if ($who->flag (FLAG_WIZ)) {	4083	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	4084	$who->message ("reloading server.");
		4085	async {
		4086	$Coro::current->{desc} = "perl_reload";
		4087	reload_perl;
		4088	};
2462	}	4089	}
2463	};	4090	};
2464		4091
2465	unshift @INC, $LIBDIR;	4092	#############################################################################
2466		4093
2467	$TICK_WATCHER = Event->timer (	4094	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		4095
		4096	our @WAIT_FOR_TICK;
		4097	our @WAIT_FOR_TICK_BEGIN;
		4098
		4099	sub wait_for_tick() {
		4100	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4101
		4102	my $signal = new Coro::Signal;
		4103	push @WAIT_FOR_TICK, $signal;
		4104	$signal->wait;
		4105	}
		4106
		4107	sub wait_for_tick_begin() {
		4108	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4109
		4110	my $signal = new Coro::Signal;
		4111	push @WAIT_FOR_TICK_BEGIN, $signal;
		4112	$signal->wait;
		4113	}
		4114
		4115	sub tick {
		4116	if ($Coro::current != $Coro::main) {
		4117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4118	unless ++$bug_warning > 10;
		4119	return;
		4120	}
		4121
2475	cf::server_tick; # one server iteration	4122	cf::server_tick; # one server iteration
2476	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;
2478		4123
2479	$WAIT_FOR_TICK->broadcast;	4124	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		4125
2482	# if we are delayed by four ticks or more, skip them all	4126	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4127	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2484		4128	Coro::async_pool {
2485	$TICK_WATCHER->at ($NEXT_TICK);	4129	$Coro::current->{desc} = "runtime saver";
2486	$TICK_WATCHER->start;
2487	},
2488	);
2489
2490	IO::AIO::max_poll_time $TICK * 0.2;
2491
2492	Event->io (
2493	fd => IO::AIO::poll_fileno,
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,
2502	after => 0,
2503	interval => 10,
2504	cb => sub {
2505	(Coro::unblock_sub {
2506	write_runtime	4130	write_runtime_sync
2507	or warn "ERROR: unable to write runtime file: $!";	4131	or error "ERROR: unable to write runtime file: $!";
2508	})->();	4132	};
2509	},	4133	}
2510	);	4134
		4135	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4136	$sig->send;
		4137	}
		4138	while (my $sig = shift @WAIT_FOR_TICK) {
		4139	$sig->send;
		4140	}
		4141
		4142	$LOAD = ($NOW - $TICK_START) / $TICK;
		4143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4144
		4145	if (0) {
		4146	if ($NEXT_TICK) {
		4147	my $jitter = $TICK_START - $NEXT_TICK;
		4148	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4149	debug "jitter $JITTER\n";#d#
		4150	}
		4151	}
		4152	}
		4153
		4154	{
		4155	# configure BDB
		4156
		4157	BDB::min_parallel 16;
		4158	BDB::max_poll_reqs $TICK * 0.1;
		4159	$AnyEvent::BDB::WATCHER->priority (1);
		4160
		4161	unless ($DB_ENV) {
		4162	$DB_ENV = BDB::db_env_create;
		4163	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4164	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4165	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4166	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4167	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4168
		4169	cf::sync_job {
		4170	eval {
		4171	BDB::db_env_open
		4172	$DB_ENV,
		4173	$BDBDIR,
		4174	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4175	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4176	0666;
		4177
		4178	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4179	};
		4180
		4181	cf::cleanup "db_env_open(db): $@" if $@;
		4182	};
		4183	}
		4184
		4185	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4186	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4187	};
		4188	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4189	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4190	};
		4191	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4192	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4193	};
		4194	}
		4195
		4196	{
		4197	# configure IO::AIO
		4198
		4199	IO::AIO::min_parallel 8;
		4200	IO::AIO::max_poll_time $TICK * 0.1;
		4201	undef $AnyEvent::AIO::WATCHER;
		4202	}
		4203
		4204	our $_log_backtrace;
		4205	our $_log_backtrace_last;
		4206
		4207	sub _log_backtrace {
		4208	my ($msg, @addr) = @_;
		4209
		4210	$msg =~ s/\n$//;
		4211
		4212	if ($_log_backtrace_last eq $msg) {
		4213	LOG llevInfo, "[ABT] $msg\n";
		4214	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4215	# limit the # of concurrent backtraces
		4216	} elsif ($_log_backtrace < 2) {
		4217	$_log_backtrace_last = $msg;
		4218	++$_log_backtrace;
		4219	my $perl_bt = Carp::longmess $msg;
		4220	async {
		4221	$Coro::current->{desc} = "abt $msg";
		4222
		4223	my @bt = fork_call {
		4224	@addr = map { sprintf "%x", $_ } @addr;
		4225	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4226	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4227	or die "addr2line: $!";
		4228
		4229	my @funcs;
		4230	my @res = <$fh>;
		4231	chomp for @res;
		4232	while (@res) {
		4233	my ($func, $line) = splice @res, 0, 2, ();
		4234	push @funcs, "[$func] $line";
		4235	}
		4236
		4237	@funcs
		4238	};
		4239
		4240	LOG llevInfo, "[ABT] $perl_bt\n";
		4241	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4242	LOG llevInfo, "[ABT] $_\n" for @bt;
		4243	--$_log_backtrace;
		4244	};
		4245	} else {
		4246	LOG llevInfo, "[ABT] $msg\n";
		4247	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4248	}
		4249	}
		4250
		4251	# load additional modules
		4252	require "cf/$_.pm" for @EXTRA_MODULES;
		4253	cf::_connect_to_perl_2;
2511		4254
2512	END { cf::emergency_save }	4255	END { cf::emergency_save }
2513		4256
2514	1	4257	1
2515		4258

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