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Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.566 by root, Sun May 1 16:58:16 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;
28		64
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
30	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
31		69
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		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" };
		78
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	123	our $NEXT_TICK;
46	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
47		132
48	our %CFG;	133	our %CFG;
49		134
50	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
52		138
53	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	142
57	our %EXT_CORO; # coroutines bound to extensions	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
58		155
59	binmode STDOUT;	156	binmode STDOUT;
60	binmode STDERR;	157	binmode STDERR;
61		158
62	# read virtual server time, if available	159	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
64	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
65	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
66	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
67	}	164	}
68		165
69	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
70	mkdir cf::localdir . "/" . cf::playerdir;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		167
75	# a special map that is always available	168	mkdir $_
76	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
77	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::"} };
78		189
79	#############################################################################	190	#############################################################################
80		191
81	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
82		193
…		…
89	=item $cf::RUNTIME	200	=item $cf::RUNTIME
90		201
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	203	every server tick.
93		204
94	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		208
96	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
98		213
99	=item $cf::NOW	214	=item $cf::NOW
100		215
101	The time of the last (current) server tick.	216	The time of the last (current) server tick.
102		217
103	=item $cf::TICK	218	=item $cf::TICK
104		219
105	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
106		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
107	=item %cf::CFG	232	=item %cf::CFG
108		233
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	235	from wherever your confdir points to.
111		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
112	=back	260	=back
113		261
114	=cut	262	=cut
115		263
116	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	271	my $msg = join "", @_;
119	utf8::encode $msg;
120		272
121	$msg .= "\n"	273	$msg .= "\n"
122	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
123		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
124	LOG llevError, $msg;	278	LOG llevWarn, $msg;
125	};	279	};
126	}	280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
127		294
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		302
135	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	304	# within the Safe compartment.
137	for my $pkg (qw(	305	for my $pkg (qw(
138	cf::global cf::attachable	306	cf::global cf::attachable
139	cf::object cf::object::player	307	cf::object cf::object::player
140	cf::client cf::player	308	cf::client cf::player
141	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
142	cf::map cf::party cf::region	311	cf::party cf::region
143	)) {	312	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	314	}
147		315
148	$Event::DIED = sub {	316	$EV::DIED = sub {
149	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
150	};	318	};
151		319
152	my %ext_pkg;	320	#############################################################################
153	my @exts;	321
154	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
155		326
156	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
157		328
158	=over 4	329	=over 4
159		330
…		…
178	$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;
179	$d	350	$d
180	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
181	}	352	}
182		353
183	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
184		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
185	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
186		369
187	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
188		371
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
197		373
198	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
199		375
200	=cut	376	=cut
201		377
202	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
204	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	}
205	}	443	}
206		444
207	=item cf::lock_wait $string	445	=item cf::lock_wait $string
208		446
209	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
210		448
211	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
212		450
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
216	returned.	454	returned.
217		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
218	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
219	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
220		461
221	=cut	462	=item $locked = cf::lock_active $string
222		463
223	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;
224		469
225	sub lock_wait($) {	470	sub lock_wait($) {
226	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	472	}
234		473
235	sub lock_acquire($) {	474	sub lock_acquire($) {
236	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
237		477
238	# wait, to be sure we are not locked	478	sub lock_active($) {
239	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
240
241	$LOCK{$key} = [];
242
243	Coro::guard {
244	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };
246	}
247	}	480	}
248		481
249	sub freeze_mainloop {	482	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
251		484
252	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
253	$TICK_WATCHER->stop;	486	}
254	$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;
255	}	572	}
256		573
257	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
258		575
259	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		581
265	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
266		583
267	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
268		585
269	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
270	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
271	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.
272		590
273	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
274	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
275	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
276	fast or be very important.	594	fast or be very important.
…		…
278	=cut	596	=cut
279		597
280	sub sync_job(&) {	598	sub sync_job(&) {
281	my ($job) = @_;	599	my ($job) = @_;
282		600
283	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
284	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
286		606
287	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
288	# (but this is cancel-safe)	608
289	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
290		610
291	my $busy = 1;	611	my $busy = 1;
292	my @res;	612	my @res;
293		613
294	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	616	@res = eval { $job->() };
296	warn $@ if $@;	617	error $@ if $@;
297	undef $busy;	618	undef $busy;
298	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
299		620
300	while ($busy) {	621	while ($busy) {
301	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
302	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
303		632
304	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
305	} else {	634	} else {
306	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
307		636
…		…
309	}	638	}
310	}	639	}
311		640
312	=item $coro = cf::async_ext { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
313		642
314	Like async, but this coro is automcatially being canceled when the	643	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	644	extension calling this is being unloaded.
316		645
317	=cut	646	=cut
318		647
319	sub async_ext(&) {	648	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
328		657
329	$coro	658	$coro
330	}	659	}
331		660
332	sub write_runtime {	661	=item fork_call { }, @args
333	my $runtime = cf::localdir . "/runtime";
334		662
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
336	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.
337		667
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		669
342	aio_fsync $fh	670	sub post_fork {
343	and return;	671	reset_signals;
		672	}
344		673
345	close $fh	674	sub fork_call(&@) {
346	or return;	675	my ($cb, @args) = @_;
347		676
348	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
349	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
350		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 {
351	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 });
352	}	864	}
353		865
354	=back	866	=back
355		867
356	=cut	868	=cut
357		869
358	#############################################################################	870	#############################################################################
359		871
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479
480	#############################################################################
481
482	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
483		873
484	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
485	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")
486	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
487		877
488	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>
489	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
490	crossfire+).	880	Deliantra).
491		881
492	=over 4	882	=over 4
493		883
494	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
495		885
…		…
539	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
540		930
541	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
542	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
543		933
544	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
545	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.
546		936
547	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
548		938
549	=over 4	939	=over 4
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	1000	our @CB_MAP = ();
611		1001
612	my %attachment;	1002	my %attachment;
613		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
614	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
616		1012
617	use sort 'stable';	1013	use sort 'stable';
618		1014
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
653		1049
654	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		1054
659	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
661		1057
662	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
667		1063
668	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
669	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
670		1066
671	} elsif (ref $type) {	1067	} elsif (ref $type) {
672	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
673		1069
674	} else {	1070	} else {
675	shift @arg;	1071	shift @arg;
676	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
677	}	1073	}
678	}	1074	}
679	}	1075	}
680		1076
681	sub _object_attach {	1077	sub _object_attach {
…		…
691	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
692	}	1088	}
693		1089
694	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
695	} else {	1091	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
697	}	1093	}
698		1094
699	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
700	}	1096	}
701		1097
…		…
703	if (ref $_[0]) {	1099	if (ref $_[0]) {
704	_object_attach @_;	1100	_object_attach @_;
705	} else {	1101	} else {
706	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
707	}	1103	}
		1104	_recalc_want;
708	};	1105	};
709		1106
710	# all those should be optimised	1107	# all those should be optimised
711	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
716	reattach ($obj);	1113	reattach ($obj);
717	} else {	1114	} else {
718	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
719	}	1116	}
		1117	_recalc_want;
720	};	1118	};
721		1119
722	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
724		1122
…		…
739	";	1137	";
740	die if $@;	1138	die if $@;
741	}	1139	}
742		1140
743	our $override;	1141	our $override;
744	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?
745		1143
746	sub override {	1144	sub override {
747	$override = 1;	1145	$override = 1;
748	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
749	}	1147	}
750		1148
751	sub do_invoke {	1149	sub do_invoke {
752	my $event = shift;	1150	my $event = shift;
753	my $callbacks = shift;	1151	my $callbacks = shift;
754		1152
755	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
756		1154
757	local $override;	1155	local $override;
758		1156
759	for (@$callbacks) {	1157	for (@$callbacks) {
760	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
761		1159
762	if ($@) {	1160	if ($@) {
763	warn "$@";
764	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
765	override;	1162	override;
766	}	1163	}
767		1164
768	return 1 if $override;	1165	return 1 if $override;
769	}	1166	}
770		1167
771	0	1168	0
772	}	1169	}
773		1170
774	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
775		1172
776	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
777		1174
778	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
779		1176
780	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
781	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
782	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		1180
784	=back	1181	=back
785		1182
786	=cut	1183	=cut
787		1184
788	#############################################################################	1185	#############################################################################
789	# 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	}
790		1229
791	sub reattach {	1230	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
793	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
794		1236
795	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
796		1238
797	@$registry = ();	1239	@$registry = ();
798		1240
…		…
803	for (@$attach) {	1245	for (@$attach) {
804	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
805	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
806	}	1248	}
807	} else {	1249	} else {
808	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
809	}	1251	}
810	}	1252	}
811	}	1253	}
812		1254
813	cf::attachable->attach (	1255	cf::attachable->attach (
814	prio => -1000000,	1256	prio => -1000000,
815	on_instantiate => sub {	1257	on_instantiate => sub {
816	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
817		1259
818	$data = from_json $data;	1260	$data = decode_json $data;
819		1261
820	for (@$data) {	1262	for (@$data) {
821	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
822		1264
823	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1281	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
841		1283
842	sync_job {	1284	sync_job {
843	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
846		1290
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
849	aio_write $fh, 0, (length $$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;
850	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
851	close $fh;	1298	aio_close $fh;
852		1299
853	if (@$objs) {	1300	if (@$objs) {
854	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) {
855	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	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;
858	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
859	close $fh;	1309	aio_close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
861	}	1311	}
862	} else {	1312	} else {
863	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
864	}	1314	}
865		1315
866	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
867	} else {	1320	} else {
868	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
869	}	1322	}
870	} else {	1323	} else {
871	aio_unlink $filename;	1324	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
873	}	1326	}
874	}	1327	};
875	}	1328	}
876		1329
877	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
879		1332
…		…
891	or return;	1344	or return;
892		1345
893	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
895	or return;	1348	or return;
		1349
896	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
897	}	1352	}
898		1353
		1354	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
901	return ($data, $av);	1359	($data, $av)
902	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
903		1367
904	#############################################################################	1368	#############################################################################
905	# command handling &c	1369	# command handling &c
906		1370
907	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1385	}
922		1386
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1388
925	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.
926		1394
927	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
928	called.	1396	called.
929		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
930	=cut	1409	=cut
931		1410
932	sub register_extcmd {	1411	sub register_extcmd {
933	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
934		1413
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
939	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
940		1424
941	cf::player->attach (	1425	cf::player->attach (
942	on_command => sub {	1426	on_unknown_command => sub {
943	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
944		1428
945	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
946	or return;	1430	or return;
947		1431
…		…
952	cf::override;	1436	cf::override;
953	},	1437	},
954	on_extcmd => sub {	1438	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
956		1440
957	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1442
959	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
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
965	} else {	1458	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1460	}
968		1461
969	cf::override;	1462	cf::override;
970	},	1463	},
971	);	1464	);
972		1465
973	sub register {	1466	# "readahead" all extensions
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	1467	sub cache_extensions {
980	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
981		1469
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
983	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
984	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}	1473	}
1032	}	1474	};
1033		1475
1034	# remove extcmds	1476	$grp
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}	1477	}
1048		1478
1049	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1050	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1486	next unless -r $path;
1052	eval {	1487
1053	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	}
1054	1	1551	}
1055	} 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	}
1056	}	1564	};
1057	}	1565	}
1058		1566
1059	#############################################################################	1567	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1568
1062	*cf::mapsupport::on_clean = sub {	1569	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1570
1097	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
1098		1572
1099	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
1100		1574
1101	=cut	1575	=cut
1102		1576
1103	package cf::player;	1577	package cf::player;
1104		1578
…		…
1106		1580
1107	=head3 cf::player	1581	=head3 cf::player
1108		1582
1109	=over 4	1583	=over 4
1110		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
1111	=item cf::player::find $login	1599	=item cf::player::find $login
1112		1600
1113	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
1114		1602
1115	=cut	1603	=cut
1116		1604
1117	sub playerdir($) {	1605	sub playerdir($) {
1118	cf::localdir	1606	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1608	}
1124		1609
1125	sub path($) {	1610	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1612
1128	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
1129	}	1614	}
1130		1615
1131	sub find_active($) {	1616	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
1136		1621
1137	sub exists($) {	1622	sub exists($) {
1138	my ($login) = @_;	1623	my ($login) = @_;
1139		1624
1140	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
1142	}	1627	}
1143		1628
1144	sub find($) {	1629	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1631	my $login = $_[0];
1147		1632
1148	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
1149		1634
1150	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
1151	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
1152	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;
1153	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
1154	}	1652	}
1155	}	1653	}
1156	}	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	);
1157		1668
1158	sub save($) {	1669	sub save($) {
1159	my ($pl) = @_;	1670	my ($pl) = @_;
1160		1671
1161	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1166	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1167		1678
1168	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1170		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
1171	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1172	Coro::cede;	1688	cf::cede_to_tick;
1173	}	1689	}
1174		1690
1175	sub new($) {	1691	sub new($) {
1176	my ($login) = @_;	1692	my ($login) = @_;
1177		1693
…		…
1183	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1184		1700
1185	$self	1701	$self
1186	}	1702	}
1187		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
1188	=item $pl->quit_character	1714	=item $pl->quit_character
1189		1715
1190	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
1191	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1192		1718
1193	=cut	1719	=cut
1194		1720
1195	sub quit_character {	1721	sub quit_character {
1196	my ($pl) = @_;	1722	my ($pl) = @_;
1197		1723
		1724	my $name = $pl->ob->name;
		1725
1198	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1199	$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
1200		1728
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1202	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1203	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1204	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1205		1737
1206	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1210	$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
1211	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;
1212	}	1764	}
1213		1765
1214	=item cf::player::list_logins	1766	=item cf::player::list_logins
1215		1767
1216	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
1217	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1218		1770
1219	=cut	1771	=cut
1220		1772
1221	sub list_logins {	1773	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1775	or return [];
1224		1776
1225	my @logins;	1777	my @logins;
1226		1778
1227	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") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1231		1789
1232	utf8::decode $login;	1790	utf8::decode $login;
1233	push @logins, $login;	1791	push @logins, $login;
1234	}	1792	}
1235		1793
1236	\@logins	1794	\@logins
1237	}	1795	}
1238		1796
1239	=item $player->maps	1797	=item $player->maps
1240		1798
		1799	=item cf::player::maps $login
		1800
1241	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
1242	player. May block.	1802	player. May block.
1243		1803
1244	=cut	1804	=cut
1245		1805
1246	sub maps($) {	1806	sub maps($) {
1247	my ($pl) = @_;	1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1810
1249	my $files = aio_readdir playerdir $pl	1811	my $files = aio_readdir playerdir $pl
1250	or return;	1812	or return;
1251		1813
1252	my @paths;	1814	my @paths;
1253		1815
1254	for (@$files) {	1816	for (@$files) {
1255	utf8::decode $_;	1817	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1818	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1819	next unless /^$PATH_SEP/o;
1258		1820
1259	s/$PATH_SEP/\//g;	1821	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1822	}
1262		1823
1263	\@paths	1824	\@paths
1264	}	1825	}
1265		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1267		1832
1268	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1269		1834
1270	=cut	1835	=cut
1271		1836
1272	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1274		1839
1275	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1841	}
1279		1842
1280	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		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	}
1281		1885
1282	=back	1886	=back
1283
1284		1887
1285	=head3 cf::map	1888	=head3 cf::map
1286		1889
1287	=over 4	1890	=over 4
1288		1891
…		…
1291	package cf::map;	1894	package cf::map;
1292		1895
1293	use Fcntl;	1896	use Fcntl;
1294	use Coro::AIO;	1897	use Coro::AIO;
1295		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1296	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1298		1905
1299	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($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 {
1300	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1301		1946
1302	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1303	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959	# !up !down for quad maps, or other maps with up/down layers
		1960
		1961	$path =~ s/$PATH_SEP/\//go;
		1962
		1963	# treat it as relative path if it starts with
		1964	# something that looks reasonable
		1965	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1966	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1967
		1968	$base =~ s{[^/]+/?$}{};
		1969	$path = "$base/$path";
		1970
		1971	} elsif ($path eq '!up') {
		1972	$base && ref $base
		1973	or Carp::carp "normalise called with relative tile path and no base: '$path'";
		1974
		1975	my $uppth = $base->tile_path (cf::TILE_UP);
		1976	$path = $uppth if $uppth;
		1977
		1978	} elsif ($path eq '!down') {
		1979	$base && ref $base
		1980	or Carp::carp "normalise called with relative tile path and no base: '$path'";
		1981
		1982	my $dpth = $base->tile_path (cf::TILE_DOWN);
		1983	$path = $dpth if $dpth;
		1984	}
		1985
		1986	for ($path) {
		1987	redo if s{/\.?/}{/};
		1988	redo if s{/[^/]+/\.\./}{/};
		1989	}
		1990
1304	$path,	1991	$path
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})
1316	}	1992	}
1317		1993
1318	# and all this just because we cannot iterate over	1994	sub new_from_path {
1319	# all maps in C++...	1995	my (undef, $path, $base) = @_;
1320	sub change_all_map_light {	1996
		1997	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1998
		1999	$path = normalise $path, $base;
		2000
		2001	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2002	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2003	my $self = bless cf::map::new, $pkg;
		2004	$self->{path} = $path; $self->path ($path);
		2005	$self->init; # pass $1 etc.
		2006	return $self;
		2007	}
		2008	}
		2009
		2010	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2011	()
		2012	}
		2013
		2014	# may re-bless or do other evil things
		2015	sub init {
1321	my ($change) = @_;	2016	my ($self) = @_;
1322		2017
1323	$_->change_map_light ($change)	2018	$self
1324	for grep $_->outdoor, values %cf::MAP;
1325	}	2019	}
1326		2020
		2021	sub as_string {
		2022	my ($self) = @_;
		2023
		2024	"$self->{path}"
		2025	}
		2026
		2027	# the displayed name, this is a one way mapping
		2028	sub visible_name {
		2029	&as_string
		2030	}
		2031
		2032	# the original (read-only) location
		2033	sub load_path {
		2034	my ($self) = @_;
		2035
		2036	"$MAPDIR/$self->{path}.map"
		2037	}
		2038
		2039	# the temporary/swap location
		2040	sub save_path {
		2041	my ($self) = @_;
		2042
		2043	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2044	"$TMPDIR/$path.map"
		2045	}
		2046
		2047	# the unique path, undef == no special unique path
		2048	sub uniq_path {
		2049	my ($self) = @_;
		2050
		2051	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2052	"$UNIQUEDIR/$path"
		2053	}
		2054
		2055	sub decay_objects {
		2056	my ($self) = @_;
		2057
		2058	return if $self->{deny_reset};
		2059
		2060	$self->do_decay_objects;
		2061	}
		2062
		2063	sub unlink_save {
		2064	my ($self) = @_;
		2065
		2066	utf8::encode (my $save = $self->save_path);
		2067	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2068	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2069	}
		2070
1327	sub try_load_header($) {	2071	sub load_header_from($) {
1328	my ($path) = @_;	2072	my ($self, $path) = @_;
1329		2073
1330	utf8::encode $path;	2074	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	2075	my $f = new_from_file cf::object::thawer $path
1332	or return;	2076	or return;
1333		2077
1334	my $map = cf::map::new	2078	$self->_load_header ($f)
1335	or return;	2079	or return;
1336		2080
1337	# for better error messages only, will be overwritten	2081	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	2082	$f->resolve_delayed_derefs;
1339		2083
1340	$map->load_header ($path)	2084	$self->{load_path} = $path;
		2085
		2086	1
		2087	}
		2088
		2089	# used to laod the header of an original map
		2090	sub load_header_orig {
		2091	my ($self) = @_;
		2092
		2093	$self->load_header_from ($self->load_path)
		2094	}
		2095
		2096	# used to laod the header of an instantiated map
		2097	sub load_header_temp {
		2098	my ($self) = @_;
		2099
		2100	$self->load_header_from ($self->save_path)
		2101	}
		2102
		2103	# called after loading the header from an instantiated map
		2104	sub prepare_temp {
		2105	my ($self) = @_;
		2106
		2107	$self->last_access ((delete $self->{last_access})
		2108	|| $cf::RUNTIME); #d#
		2109	# safety
		2110	$self->{instantiate_time} = $cf::RUNTIME
		2111	if $self->{instantiate_time} > $cf::RUNTIME;
		2112	}
		2113
		2114	# called after loading the header from an original map
		2115	sub prepare_orig {
		2116	my ($self) = @_;
		2117
		2118	$self->{load_original} = 1;
		2119	$self->{instantiate_time} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121	$self->instantiate;
		2122	}
		2123
		2124	sub load_header {
		2125	my ($self) = @_;
		2126
		2127	if ($self->load_header_temp) {
		2128	$self->prepare_temp;
		2129	} else {
		2130	$self->load_header_orig
1341	or return;	2131	or return;
		2132	$self->prepare_orig;
		2133	}
1342		2134
1343	$map->{load_path} = $path;	2135	$self->{deny_reset} = 1
		2136	if $self->no_reset;
1344		2137
1345	$map	2138	$self->default_region (cf::region::find_by_path $self->{path})
		2139	unless $self->default_region;
		2140
		2141	1
1346	}	2142	}
1347		2143
1348	sub find;	2144	sub find;
1349	sub find {	2145	sub find {
1350	my ($path, $origin) = @_;	2146	my ($path, $origin) = @_;
1351		2147
1352	#warn "find<$path,$origin>\n";#d#	2148	cf::cede_to_tick;
1353		2149
1354	$path = new cf::path $path, $origin && $origin->path;	2150	$path = normalise $path, $origin;
1355	my $key = $path->as_string;
1356		2151
1357	cf::lock_wait "map_find:$key";	2152	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1358
1359	$cf::MAP{$key} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	2153	my $guard2 = cf::lock_acquire "map_find:$path";
1361		2154
1362	# do it the slow way	2155	$cf::MAP{$path} || do {
1363	my $map = try_load_header $path->save_path;	2156	my $map = new_from_path cf::map $path
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	2157	or return;
1381		2158
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	2159	$map->{last_save} = $cf::RUNTIME;
1394		2160
1395	Coro::cede;	2161	$map->load_header
		2162	or return;
1396		2163
1397	if ($map->should_reset) {	2164	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2165	# doing this can freeze the server in a sync job, obviously
		2166	#$cf::WAIT_FOR_TICK->wait;
		2167	undef $guard2;
		2168	undef $guard1;
1398	$map->reset;	2169	$map->reset;
1399	undef $guard;
1400	$map = find $path	2170	return find $path;
1401	or return;
1402	}	2171	}
1403		2172
1404	$cf::MAP{$key} = $map	2173	$cf::MAP{$path} = $map
1405	}	2174	}
1406	}	2175	}
		2176
		2177	sub pre_load { }
		2178	#sub post_load { } # XS
1407		2179
1408	sub load {	2180	sub load {
1409	my ($self) = @_;	2181	my ($self) = @_;
1410		2182
		2183	local $self->{deny_reset} = 1; # loading can take a long time
		2184
1411	my $path = $self->{path};	2185	my $path = $self->{path};
		2186
		2187	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2188	my $guard = cf::lock_acquire "map_data:$path";
1413		2189
		2190	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2191	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2192
1416	$self->in_memory (cf::MAP_LOADING);	2193	$self->in_memory (cf::MAP_LOADING);
1417		2194
1418	$self->alloc;	2195	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2196
		2197	$self->pre_load;
		2198	cf::cede_to_tick;
		2199
		2200	if (exists $self->{load_path}) {
		2201	my $f = new_from_file cf::object::thawer $self->{load_path};
		2202	$f->skip_block;
		2203	$self->_load_objects ($f)
1420	or return;	2204	or return;
1421		2205
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2206	$self->post_load_original
1423	if delete $self->{load_original};	2207	if delete $self->{load_original};
1424		2208
1425	if (my $uniq = $path->uniq_path) {	2209	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2210	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2211	unless (aio_stat $uniq) {
		2212	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2213	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2214	$self->_load_objects ($f);
		2215	$f->resolve_delayed_derefs;
		2216	}
		2217	}
1430	}	2218	}
1431	}
1432		2219
1433	Coro::cede;	2220	$f->resolve_delayed_derefs;
		2221	} else {
		2222	$self->post_load_original
		2223	if delete $self->{load_original};
		2224	}
1434		2225
		2226	cf::cede_to_tick;
1435	# now do the right thing for maps	2227	# now do the right thing for maps
1436	$self->link_multipart_objects;	2228	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	2229	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2230	unless $self->difficulty;
		2231	cf::cede_to_tick;
		2232
		2233	unless ($self->{deny_activate}) {
		2234	$self->decay_objects;
		2235	$self->fix_auto_apply;
		2236	$self->update_buttons;
		2237	cf::cede_to_tick;
1448	$self->activate;	2238	$self->activate;
1449	}	2239	}
1450		2240
1451	Coro::cede;	2241	$self->{last_save} = $cf::RUNTIME;
		2242	$self->last_access ($cf::RUNTIME);
1452		2243
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2244	$self->in_memory (cf::MAP_ACTIVE);
		2245	}
		2246
		2247	$self->post_load;
		2248
		2249	1
		2250	}
		2251
		2252	# customize the map for a given player, i.e.
		2253	# return the _real_ map. used by e.g. per-player
		2254	# maps to change the path to ~playername/mappath
		2255	sub customise_for {
		2256	my ($self, $ob) = @_;
		2257
		2258	return find "~" . $ob->name . "/" . $self->{path}
		2259	if $self->per_player;
		2260
		2261	# return find "?party/" . $ob->name . "/" . $self->{path}
		2262	# if $self->per_party;
		2263
		2264	$self
		2265	}
		2266
		2267	# find and load all maps in the 3x3 area around a map
		2268	sub load_neighbours {
		2269	my ($map) = @_;
		2270
		2271	my @neigh; # diagonal neighbours
		2272
		2273	for (0 .. 3) {
		2274	my $neigh = $map->tile_path ($_)
		2275	or next;
		2276	$neigh = find $neigh, $map
		2277	or next;
		2278	$neigh->load;
		2279
		2280	# now find the diagonal neighbours
		2281	push @neigh,
		2282	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2283	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2284	}
		2285
		2286	for (grep defined $_->[0], @neigh) {
		2287	my ($path, $origin) = @$_;
		2288	my $neigh = find $path, $origin
		2289	or next;
		2290	$neigh->load;
		2291	}
1454	}	2292	}
1455		2293
1456	sub find_sync {	2294	sub find_sync {
1457	my ($path, $origin) = @_;	2295	my ($path, $origin) = @_;
1458		2296
1459	cf::sync_job { cf::map::find $path, $origin }	2297	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2298	if $Coro::current == $Coro::main;
		2299
		2300	find $path, $origin
1460	}	2301	}
1461		2302
1462	sub do_load_sync {	2303	sub do_load_sync {
1463	my ($map) = @_;	2304	my ($map) = @_;
1464		2305
1465	cf::sync_job { $map->load };	2306	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2307	if $Coro::current == $Coro::main;
		2308
		2309	$map->load;
		2310	}
		2311
		2312	our %MAP_PREFETCH;
		2313	our $MAP_PREFETCHER = undef;
		2314
		2315	sub find_async {
		2316	my ($path, $origin, $load) = @_;
		2317
		2318	$path = normalise $path, $origin;
		2319
		2320	if (my $map = $cf::MAP{$path}) {
		2321	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2322	}
		2323
		2324	$MAP_PREFETCH{$path} |= $load;
		2325
		2326	$MAP_PREFETCHER ||= cf::async {
		2327	$Coro::current->{desc} = "map prefetcher";
		2328
		2329	while (%MAP_PREFETCH) {
		2330	while (my ($k, $v) = each %MAP_PREFETCH) {
		2331	if (my $map = find $k) {
		2332	$map->load if $v;
		2333	}
		2334
		2335	delete $MAP_PREFETCH{$k};
		2336	}
		2337	}
		2338	undef $MAP_PREFETCHER;
		2339	};
		2340	$MAP_PREFETCHER->prio (6);
		2341
		2342	()
		2343	}
		2344
		2345	# common code, used by both ->save and ->swapout
		2346	sub _save {
		2347	my ($self) = @_;
		2348
		2349	$self->{last_save} = $cf::RUNTIME;
		2350
		2351	return unless $self->dirty;
		2352
		2353	my $save = $self->save_path; utf8::encode $save;
		2354	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2355
		2356	$self->{load_path} = $save;
		2357
		2358	return if $self->{deny_save};
		2359
		2360	local $self->{last_access} = $self->last_access;#d#
		2361
		2362	cf::async {
		2363	$Coro::current->{desc} = "map player save";
		2364	$_->contr->save for $self->players;
		2365	};
		2366
		2367	cf::get_slot 0.02;
		2368
		2369	if ($uniq) {
		2370	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2371	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2372	} else {
		2373	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2374	}
1466	}	2375	}
1467		2376
1468	sub save {	2377	sub save {
1469	my ($self) = @_;	2378	my ($self) = @_;
1470		2379
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2380	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2381
1473	$self->{last_save} = $cf::RUNTIME;	2382	$self->_save;
1474
1475	return unless $self->dirty;
1476
1477	my $save = $self->{path}->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1479
1480	$self->{load_path} = $save;
1481
1482	return if $self->{deny_save};
1483
1484	local $self->{last_access} = $self->last_access;#d#
1485
1486	cf::async {
1487	$_->contr->save for $self->players;
1488	};
1489
1490	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}
1496	}	2383	}
1497		2384
1498	sub swap_out {	2385	sub swap_out {
1499	my ($self) = @_;	2386	my ($self) = @_;
1500		2387
1501	# save first because save cedes
1502	$self->save;
1503
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2388	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2389
		2390	return if $self->in_memory != cf::MAP_ACTIVE;
		2391	return if $self->{deny_save};
1506	return if $self->players;	2392	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};
1509		2393
		2394	# first deactivate the map and "unlink" it from the core
		2395	$self->deactivate;
		2396	$_->clear_links_to ($self) for values %cf::MAP;
		2397	$self->in_memory (cf::MAP_SWAPPED);
		2398
		2399	# then atomically save
		2400	$self->_save;
		2401
		2402	# then free the map
1510	$self->clear;	2403	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2404	}
1513		2405
1514	sub reset_at {	2406	sub reset_at {
1515	my ($self) = @_;	2407	my ($self) = @_;
1516		2408
1517	# TODO: safety, remove and allow resettable per-player maps	2409	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2410	return 1e99 if $self->{deny_reset};
1520		2411
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2412	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2413	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2414
…		…
1528	my ($self) = @_;	2419	my ($self) = @_;
1529		2420
1530	$self->reset_at <= $cf::RUNTIME	2421	$self->reset_at <= $cf::RUNTIME
1531	}	2422	}
1532		2423
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2424	sub reset {
1555	my ($self) = @_;	2425	my ($self) = @_;
1556		2426
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2427	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2428
1559	return if $self->players;	2429	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2430
1562	warn "resetting map ", $self->path;#d#	2431	cf::trace "resetting map ", $self->path, "\n";
		2432
		2433	$self->in_memory (cf::MAP_SWAPPED);
		2434
		2435	# need to save uniques path
		2436	unless ($self->{deny_save}) {
		2437	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2438
		2439	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2440	if $uniq;
		2441	}
1563		2442
1564	delete $cf::MAP{$self->path};	2443	delete $cf::MAP{$self->path};
1565		2444
		2445	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2446	$_->clear_links_to ($self) for values %cf::MAP;
		2447	$self->clear;
1567		2448
1568	$self->unlink_save;	2449	$self->unlink_save;
1569	$self->destroy;	2450	$self->destroy;
1570	}	2451	}
1571		2452
1572	my $nuke_counter = "aaaa";	2453	my $nuke_counter = "aaaa";
1573		2454
1574	sub nuke {	2455	sub nuke {
1575	my ($self) = @_;	2456	my ($self) = @_;
1576		2457
		2458	{
		2459	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2460
		2461	delete $cf::MAP{$self->path};
		2462
		2463	$self->unlink_save;
		2464
		2465	bless $self, "cf::map::wrap";
		2466	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2467	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2468	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2469	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2470
		2471	$cf::MAP{$self->path} = $self;
		2472	}
		2473
1580	$self->reset; # polite request, might not happen	2474	$self->reset; # polite request, might not happen
1581	}	2475	}
1582		2476
1583	sub customise_for {	2477	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2478
1586	if ($map->per_player) {	2479	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2480	maps. May block.
		2481
		2482	=cut
		2483
		2484	sub tmp_maps() {
1588	}	2485	[
1589		2486	map {
1590	$map	2487	utf8::decode $_;
		2488	/\.map$/
		2489	? normalise $_
		2490	: ()
		2491	} @{ aio_readdir $TMPDIR or [] }
		2492	]
1591	}	2493	}
1592		2494
1593	sub emergency_save {	2495	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2496
1596	warn "enter emergency perl save\n";	2497	Returns an arrayref with all map paths of currently instantiated and saved
		2498	random maps. May block.
1597		2499
1598	cf::sync_job {	2500	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2501
1603	warn "begin emergency map save\n";	2502	sub random_maps() {
1604	$_->save for values %cf::MAP;	2503	[
1605	warn "end emergency map save\n";	2504	map {
		2505	utf8::decode $_;
		2506	/\.map$/
		2507	? normalise "?random/$_"
		2508	: ()
		2509	} @{ aio_readdir $RANDOMDIR or [] }
		2510	]
		2511	}
		2512
		2513	=item cf::map::unique_maps
		2514
		2515	Returns an arrayref of paths of all shared maps that have
		2516	instantiated unique items. May block.
		2517
		2518	=cut
		2519
		2520	sub unique_maps() {
		2521	[
		2522	map {
		2523	utf8::decode $_;
		2524	s/\.map$//; # TODO future compatibility hack
		2525	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2526	? ()
		2527	: normalise $_
		2528	} @{ aio_readdir $UNIQUEDIR or [] }
		2529	]
		2530	}
		2531
		2532	=item cf::map::static_maps
		2533
		2534	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2535	file in the shared directory excluding F</styles> and F</editor>). May
		2536	block.
		2537
		2538	=cut
		2539
		2540	sub static_maps() {
		2541	my @dirs = "";
		2542	my @maps;
		2543
		2544	while (@dirs) {
		2545	my $dir = shift @dirs;
		2546
		2547	next if $dir eq "/styles" || $dir eq "/editor";
		2548
		2549	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2550	or return;
		2551
		2552	for (@$files) {
		2553	s/\.map$// or next;
		2554	utf8::decode $_;
		2555	push @maps, "$dir/$_";
		2556	}
		2557
		2558	push @dirs, map "$dir/$_", @$dirs;
1606	};	2559	}
1607		2560
1608	warn "leave emergency perl save\n";	2561	\@maps
		2562	}
		2563
		2564	=back
		2565
		2566	=head3 cf::object
		2567
		2568	=cut
		2569
		2570	package cf::object;
		2571
		2572	=over 4
		2573
		2574	=item $ob->inv_recursive
		2575
		2576	Returns the inventory of the object I<and> their inventories, recursively,
		2577	but I<not> the object itself.
		2578
		2579	=cut
		2580
		2581	sub inv_recursive_;
		2582	sub inv_recursive_ {
		2583	map { $_, inv_recursive_ $_->inv } @_
		2584	}
		2585
		2586	sub inv_recursive {
		2587	inv_recursive_ inv $_[0]
		2588	}
		2589
		2590	=item $ref = $ob->ref
		2591
		2592	Creates and returns a persistent reference to an object that can be stored as a string.
		2593
		2594	=item $ob = cf::object::deref ($refstring)
		2595
		2596	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2597	even if the object actually exists. May block.
		2598
		2599	=cut
		2600
		2601	sub deref {
		2602	my ($ref) = @_;
		2603
		2604	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2605	my ($uuid, $name) = ($1, $2);
		2606	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2607	or return;
		2608	$pl->ob->uuid eq $uuid
		2609	or return;
		2610
		2611	$pl->ob
		2612	} else {
		2613	warn "$ref: cannot resolve object reference\n";
		2614	undef
		2615	}
1609	}	2616	}
1610		2617
1611	package cf;	2618	package cf;
1612		2619
1613	=back	2620	=back
1614
1615		2621
1616	=head3 cf::object::player	2622	=head3 cf::object::player
1617		2623
1618	=over 4	2624	=over 4
1619		2625
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2628	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2629	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2630	dialogue with the given NPC character.
1625		2631
1626	=cut	2632	=cut
		2633
		2634	our $SAY_CHANNEL = {
		2635	id => "say",
		2636	title => "Map",
		2637	reply => "say ",
		2638	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2639	};
		2640
		2641	our $CHAT_CHANNEL = {
		2642	id => "chat",
		2643	title => "Chat",
		2644	reply => "chat ",
		2645	tooltip => "Player chat and shouts, global to the server.",
		2646	};
1627		2647
1628	# rough implementation of a future "reply" method that works	2648	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2649	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2650	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2651	sub cf::object::player::reply($$$;$) {
…		…
1633		2653
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2655
1636	if ($self->{record_replies}) {	2656	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2658
1638	} else {	2659	} else {
		2660	my $pl = $self->contr;
		2661
		2662	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2663	my $dialog = $pl->{npc_dialog};
		2664	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2665
		2666	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2667	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2668	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2669	}
1641	}	2670	}
		2671	}
		2672
		2673	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2674
		2675	=cut
		2676
		2677	sub cf::object::send_msg {
		2678	my $pl = shift->contr
		2679	or return;
		2680	$pl->send_msg (@_);
1642	}	2681	}
1643		2682
1644	=item $player_object->may ("access")	2683	=item $player_object->may ("access")
1645		2684
1646	Returns wether the given player is authorized to access resource "access"	2685	Returns wether the given player is authorized to access resource "access"
…		…
1659		2698
1660	=item $player_object->enter_link	2699	=item $player_object->enter_link
1661		2700
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2701	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2702
1664	The player should be reaosnably safe there for short amounts of time. You	2703	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2704	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2705	though, as the player cannot control the character while it is on the link
		2706	map.
		2707
		2708	Will never block.
1666		2709
1667	=item $player_object->leave_link ($map, $x, $y)	2710	=item $player_object->leave_link ($map, $x, $y)
1668		2711
1669	Moves the player out of the specila link map onto the given map. If the	2712	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2713	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2714	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2715	fails, to the emergency map position.
1673		2716
1674	Might block.	2717	Might block.
1675		2718
1676	=cut	2719	=cut
		2720
		2721	sub link_map {
		2722	unless ($LINK_MAP) {
		2723	$LINK_MAP = cf::map::find "{link}"
		2724	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2725	$LINK_MAP->load;
		2726	}
		2727
		2728	$LINK_MAP
		2729	}
1677		2730
1678	sub cf::object::player::enter_link {	2731	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2732	my ($self) = @_;
1680		2733
1681	$self->deactivate_recursive;	2734	$self->deactivate_recursive;
1682		2735
1683	return if $self->map == $LINK_MAP;	2736	++$self->{_link_recursion};
		2737
		2738	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2739
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2740	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2741	if $self->map && $self->map->{path} ne "{link}";
1687		2742
1688	$self->enter_map ($LINK_MAP, 20, 20);	2743	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1689	}	2744	}
1690		2745
1691	sub cf::object::player::leave_link {	2746	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2747	my ($self, $map, $x, $y) = @_;
		2748
		2749	return unless $self->contr->active;
1693		2750
1694	my $link_pos = delete $self->{_link_pos};	2751	my $link_pos = delete $self->{_link_pos};
1695		2752
1696	unless ($map) {	2753	unless ($map) {
1697	# restore original map position	2754	# restore original map position
…		…
1708	($x, $y) = (-1, -1)	2765	($x, $y) = (-1, -1)
1709	unless (defined $x) && (defined $y);	2766	unless (defined $x) && (defined $y);
1710		2767
1711	# use -1 or undef as default coordinates, not 0, 0	2768	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2769	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2770	if $x <= 0 && $y <= 0;
1714		2771
1715	$map->load;	2772	$map->load;
		2773	$map->load_neighbours;
1716		2774
1717	return unless $self->contr->active;	2775	return unless $self->contr->active;
		2776
		2777	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2778	if ($self->enter_map ($map, $x, $y)) {
		2779	# entering was successful
		2780	delete $self->{_link_recursion};
		2781	# only activate afterwards, to support waiting in hooks
1718	$self->activate_recursive;	2782	$self->activate_recursive;
1719	$self->enter_map ($map, $x, $y);
1720	}
1721
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($pl) = @_;
1725
1726	# abort map switching before logout
1727	if ($pl->ob->{_link_pos}) {
1728	cf::sync_job {
1729	$pl->ob->leave_link
1730	};
1731	}
1732	},	2783	}
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2784
1736	# try to abort aborted map switching on player login :)	2785	}
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753		2786
1754	=item $player_object->goto ($path, $x, $y)	2787	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1755		2788
		2789	Moves the player to the given map-path and coordinates by first freezing
		2790	her, loading and preparing them map, calling the provided $check callback
		2791	that has to return the map if sucecssful, and then unfreezes the player on
		2792	the new (success) or old (failed) map position. In either case, $done will
		2793	be called at the end of this process.
		2794
		2795	Note that $check will be called with a potentially non-loaded map, so if
		2796	it needs a loaded map it has to call C<< ->load >>.
		2797
1756	=cut	2798	=cut
		2799
		2800	our $GOTOGEN;
1757		2801
1758	sub cf::object::player::goto {	2802	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2803	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2804
1761	$path = new cf::path $path;	2805	if ($self->{_link_recursion} >= $MAX_LINKS) {
1762	$path ne "/" or Carp::cluck ("oy");#d#	2806	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2807	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2808	($path, $x, $y) = @$EMERGENCY_POSITION;
		2809	}
		2810
		2811	# do generation counting so two concurrent goto's will be executed in-order
		2812	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2813
1764	$self->enter_link;	2814	$self->enter_link;
1765		2815
1766	(async {	2816	(async {
1767	my $map = cf::map::find $path->as_string;	2817	$Coro::current->{desc} = "player::goto $path $x $y";
		2818
		2819	# *tag paths override both path and x|y
		2820	if ($path =~ /^\*(.*)$/) {
		2821	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2822	my $ob = $obs[rand @obs];
		2823
		2824	# see if we actually can go there
		2825	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2826	$ob = $obs[rand @obs];
		2827	} else {
		2828	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	}
		2830	# else put us there anyways for now #d#
		2831
		2832	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2833	} else {
		2834	($path, $x, $y) = (undef, undef, undef);
		2835	}
		2836	}
		2837
		2838	my $map = eval {
		2839	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2840
		2841	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2842	$map = $map->customise_for ($self);
1769		2843	$map = $check->($map, $x, $y, $self) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2844	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2845	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2846	}
1774		2847
		2848	$map
		2849	};
		2850
		2851	if ($@) {
		2852	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2853	LOG llevError | logBacktrace, Carp::longmess $@;
		2854	}
		2855
		2856	if ($gen == $self->{_goto_generation}) {
		2857	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2858	$self->leave_link ($map, $x, $y);
		2859	}
		2860
		2861	$done->($self) if $done;
1776	})->prio (1);	2862	})->prio (1);
1777	}	2863	}
1778		2864
1779	=item $player_object->enter_exit ($exit_object)	2865	=item $player_object->enter_exit ($exit_object)
1780		2866
…		…
1782		2868
1783	sub parse_random_map_params {	2869	sub parse_random_map_params {
1784	my ($spec) = @_;	2870	my ($spec) = @_;
1785		2871
1786	my $rmp = { # defaults	2872	my $rmp = { # defaults
1787	xsize => 10,	2873	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2874	ysize => (cf::rndm 15, 40),
		2875	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2876	#layout => string,
1789	};	2877	};
1790		2878
1791	for (split /\n/, $spec) {	2879	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2880	my ($k, $v) = split /\s+/, $_, 2;
1793		2881
…		…
1805	# that depends on the exit object	2893	# that depends on the exit object
1806		2894
1807	my $rmp = parse_random_map_params $exit->msg;	2895	my $rmp = parse_random_map_params $exit->msg;
1808		2896
1809	if ($exit->map) {	2897	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2898	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2899	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2900	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2901	$rmp->{origin_y} = $exit->y;
		2902
		2903	$exit->map->touch;
1814	}	2904	}
1815		2905
1816	$rmp->{random_seed} ||= $exit->random_seed;	2906	$rmp->{random_seed} ||= $exit->random_seed;
1817		2907
1818	my $data = cf::to_json $rmp;	2908	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1819	my $md5 = Digest::MD5::md5_hex $data;	2909	my $md5 = Digest::MD5::md5_hex $data;
		2910	my $meta = "$RANDOMDIR/$md5.meta";
1820		2911
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2912	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2913	aio_write $fh, 0, (length $data), $data, 0;
		2914	undef $fh;
		2915	aio_rename "$meta~", $meta;
1823		2916
		2917	my $slaying = "?random/$md5";
		2918
		2919	if ($exit->valid) {
1824	$exit->slaying ("?random/$md5");	2920	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2921	$exit->msg (undef);
		2922	}
1826	}	2923	}
1827	}	2924	}
1828		2925
1829	sub cf::object::player::enter_exit {	2926	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2927	my ($self, $exit) = @_;
…		…
1832	return unless $self->type == cf::PLAYER;	2929	return unless $self->type == cf::PLAYER;
1833		2930
1834	$self->enter_link;	2931	$self->enter_link;
1835		2932
1836	(async {	2933	(async {
1837	$self->deactivate_recursive; # just to be sure	2934	$Coro::current->{desc} = "enter_exit";
		2935
1838	unless (eval {	2936	unless (eval {
		2937	$self->deactivate_recursive; # just to be sure
		2938
		2939	# random map handling
		2940	{
		2941	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2942
1839	prepare_random_map $exit	2943	prepare_random_map $exit
1840	if $exit->slaying eq "/!";	2944	if $exit->slaying eq "/!";
		2945	}
1841		2946
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2947	my $map = cf::map::normalise $exit->slaying, $exit->map;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2948	my $x = $exit->stats->hp;
		2949	my $y = $exit->stats->sp;
1844		2950
		2951	$self->goto ($map, $x, $y);
		2952
		2953	# if exit is damned, update players death & WoR home-position
		2954	$self->contr->savebed ($map, $x, $y)
		2955	if $exit->flag (cf::FLAG_DAMNED);
		2956
1845	1;	2957	1
1846	}) {	2958	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2959	$self->message ("Something went wrong deep within the deliantra server. "
1848	. "I'll try to bring you back to the map you were before. "	2960	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2961	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2962	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2963
1852	warn "ERROR in enter_exit: $@";	2964	error "ERROR in enter_exit: $@";
1853	$self->leave_link;	2965	$self->leave_link;
1854	}	2966	}
1855	})->prio (1);	2967	})->prio (1);
1856	}	2968	}
1857		2969
…		…
1868		2980
1869	sub cf::client::send_drawinfo {	2981	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2982	my ($self, $text, $flags) = @_;
1871		2983
1872	utf8::encode $text;	2984	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2985	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2986	}
1875		2987
		2988	=item $client->send_big_packet ($pkt)
		2989
		2990	Like C<send_packet>, but tries to compress large packets, and fragments
		2991	them as required.
		2992
		2993	=cut
		2994
		2995	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2996
		2997	sub cf::client::send_big_packet {
		2998	my ($self, $pkt) = @_;
		2999
		3000	# try lzf for large packets
		3001	$pkt = "lzf " . Compress::LZF::compress $pkt
		3002	if 1024 <= length $pkt and $self->{can_lzf};
		3003
		3004	# split very large packets
		3005	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3006	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3007	$pkt = "frag";
		3008	}
		3009
		3010	$self->send_packet ($pkt);
		3011	}
		3012
		3013	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3014
		3015	Send a drawinfo or msg packet to the client, formatting the msg for the
		3016	client if neccessary. C<$type> should be a string identifying the type of
		3017	the message, with C<log> being the default. If C<$color> is negative, suppress
		3018	the message unless the client supports the msg packet.
		3019
		3020	=cut
		3021
		3022	# non-persistent channels (usually the info channel)
		3023	our %CHANNEL = (
		3024	"c/motd" => {
		3025	id => "infobox",
		3026	title => "MOTD",
		3027	reply => undef,
		3028	tooltip => "The message of the day",
		3029	},
		3030	"c/identify" => {
		3031	id => "infobox",
		3032	title => "Identify",
		3033	reply => undef,
		3034	tooltip => "Items recently identified",
		3035	},
		3036	"c/examine" => {
		3037	id => "infobox",
		3038	title => "Examine",
		3039	reply => undef,
		3040	tooltip => "Signs and other items you examined",
		3041	},
		3042	"c/shopinfo" => {
		3043	id => "infobox",
		3044	title => "Shop Info",
		3045	reply => undef,
		3046	tooltip => "What your bargaining skill tells you about the shop",
		3047	},
		3048	"c/book" => {
		3049	id => "infobox",
		3050	title => "Book",
		3051	reply => undef,
		3052	tooltip => "The contents of a note or book",
		3053	},
		3054	"c/lookat" => {
		3055	id => "infobox",
		3056	title => "Look",
		3057	reply => undef,
		3058	tooltip => "What you saw there",
		3059	},
		3060	"c/who" => {
		3061	id => "infobox",
		3062	title => "Players",
		3063	reply => undef,
		3064	tooltip => "Shows players who are currently online",
		3065	},
		3066	"c/body" => {
		3067	id => "infobox",
		3068	title => "Body Parts",
		3069	reply => undef,
		3070	tooltip => "Shows which body parts you posess and are available",
		3071	},
		3072	"c/statistics" => {
		3073	id => "infobox",
		3074	title => "Statistics",
		3075	reply => undef,
		3076	tooltip => "Shows your primary statistics",
		3077	},
		3078	"c/skills" => {
		3079	id => "infobox",
		3080	title => "Skills",
		3081	reply => undef,
		3082	tooltip => "Shows your experience per skill and item power",
		3083	},
		3084	"c/shopitems" => {
		3085	id => "infobox",
		3086	title => "Shop Items",
		3087	reply => undef,
		3088	tooltip => "Shows the items currently for sale in this shop",
		3089	},
		3090	"c/resistances" => {
		3091	id => "infobox",
		3092	title => "Resistances",
		3093	reply => undef,
		3094	tooltip => "Shows your resistances",
		3095	},
		3096	"c/pets" => {
		3097	id => "infobox",
		3098	title => "Pets",
		3099	reply => undef,
		3100	tooltip => "Shows information abotu your pets/a specific pet",
		3101	},
		3102	"c/perceiveself" => {
		3103	id => "infobox",
		3104	title => "Perceive Self",
		3105	reply => undef,
		3106	tooltip => "You gained detailed knowledge about yourself",
		3107	},
		3108	"c/uptime" => {
		3109	id => "infobox",
		3110	title => "Uptime",
		3111	reply => undef,
		3112	tooltip => "How long the server has been running since last restart",
		3113	},
		3114	"c/mapinfo" => {
		3115	id => "infobox",
		3116	title => "Map Info",
		3117	reply => undef,
		3118	tooltip => "Information related to the maps",
		3119	},
		3120	"c/party" => {
		3121	id => "party",
		3122	title => "Party",
		3123	reply => "gsay ",
		3124	tooltip => "Messages and chat related to your party",
		3125	},
		3126	"c/death" => {
		3127	id => "death",
		3128	title => "Death",
		3129	reply => undef,
		3130	tooltip => "Reason for and more info about your most recent death",
		3131	},
		3132	"c/say" => $SAY_CHANNEL,
		3133	"c/chat" => $CHAT_CHANNEL,
		3134	);
		3135
		3136	sub cf::client::send_msg {
		3137	my ($self, $channel, $msg, $color, @extra) = @_;
		3138
		3139	$msg = $self->pl->expand_cfpod ($msg)
		3140	unless $color & cf::NDI_VERBATIM;
		3141
		3142	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3143
		3144	# check predefined channels, for the benefit of C
		3145	if ($CHANNEL{$channel}) {
		3146	$channel = $CHANNEL{$channel};
		3147
		3148	$self->ext_msg (channel_info => $channel);
		3149	$channel = $channel->{id};
		3150
		3151	} elsif (ref $channel) {
		3152	# send meta info to client, if not yet sent
		3153	unless (exists $self->{channel}{$channel->{id}}) {
		3154	$self->{channel}{$channel->{id}} = $channel;
		3155	$self->ext_msg (channel_info => $channel);
		3156	}
		3157
		3158	$channel = $channel->{id};
		3159	}
		3160
		3161	return unless @extra || length $msg;
		3162
		3163	# default colour, mask it out
		3164	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3165	if $color & cf::NDI_DEF;
		3166
		3167	my $pkt = "msg "
		3168	. $self->{json_coder}->encode (
		3169	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3170	);
		3171
		3172	$self->send_big_packet ($pkt);
		3173	}
		3174
		3175	=item $client->ext_msg ($type, @msg)
		3176
		3177	Sends an ext event to the client.
		3178
		3179	=cut
		3180
		3181	sub cf::client::ext_msg($$@) {
		3182	my ($self, $type, @msg) = @_;
		3183
		3184	if ($self->extcmd == 2) {
		3185	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3186	} elsif ($self->extcmd == 1) { # TODO: remove
		3187	push @msg, msgtype => "event_$type";
		3188	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3189	}
		3190	}
		3191
		3192	=item $client->ext_reply ($msgid, @msg)
		3193
		3194	Sends an ext reply to the client.
		3195
		3196	=cut
		3197
		3198	sub cf::client::ext_reply($$@) {
		3199	my ($self, $id, @msg) = @_;
		3200
		3201	if ($self->extcmd == 2) {
		3202	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3203	} elsif ($self->extcmd == 1) {
		3204	#TODO: version 1, remove
		3205	unshift @msg, msgtype => "reply", msgid => $id;
		3206	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3207	}
		3208	}
1876		3209
1877	=item $success = $client->query ($flags, "text", \&cb)	3210	=item $success = $client->query ($flags, "text", \&cb)
1878		3211
1879	Queues a query to the client, calling the given callback with	3212	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3213	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3214	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		3215
1883	Queries can fail, so check the return code. Or don't, as queries will become	3216	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	3217	become reliable at some point in the future.
1885		3218
1886	=cut	3219	=cut
1887		3220
1888	sub cf::client::query {	3221	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	3222	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	3230	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3231	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		3232
1900	$self->send_packet ($self->{query_queue}[0][0])	3233	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	3234	if @{ $self->{query_queue} } == 1;
		3235
		3236	1
1902	}	3237	}
1903		3238
1904	cf::client->attach (	3239	cf::client->attach (
		3240	on_connect => sub {
		3241	my ($ns) = @_;
		3242
		3243	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3244	},
1905	on_reply => sub {	3245	on_reply => sub {
1906	my ($ns, $msg) = @_;	3246	my ($ns, $msg) = @_;
1907		3247
1908	# this weird shuffling is so that direct followup queries	3248	# this weird shuffling is so that direct followup queries
1909	# get handled first	3249	# get handled first
1910	my $queue = delete $ns->{query_queue}	3250	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	3251	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		3252
1913	(shift @$queue)->[1]->($msg);	3253	(shift @$queue)->[1]->($msg);
		3254	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		3255
1915	push @{ $ns->{query_queue} }, @$queue;	3256	push @{ $ns->{query_queue} }, @$queue;
1916		3257
1917	if (@{ $ns->{query_queue} } == @$queue) {	3258	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	3259	if (@$queue) {
…		…
1920	} else {	3261	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3262	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	3263	}
1923	}	3264	}
1924	},	3265	},
		3266	on_exticmd => sub {
		3267	my ($ns, $buf) = @_;
		3268
		3269	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3270
		3271	if (ref $msg) {
		3272	my ($type, $reply, @payload) =
		3273	"ARRAY" eq ref $msg
		3274	? @$msg
		3275	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3276
		3277	my @reply;
		3278
		3279	if (my $cb = $EXTICMD{$type}) {
		3280	@reply = $cb->($ns, @payload);
		3281	}
		3282
		3283	$ns->ext_reply ($reply, @reply)
		3284	if $reply;
		3285
		3286	} else {
		3287	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3288	}
		3289
		3290	cf::override;
		3291	},
1925	);	3292	);
1926		3293
1927	=item $client->async (\&cb)	3294	=item $client->async (\&cb)
1928		3295
1929	Create a new coroutine, running the specified callback. The coroutine will	3296	Create a new coroutine, running the specified callback. The coroutine will
…		…
1945		3312
1946	$coro	3313	$coro
1947	}	3314	}
1948		3315
1949	cf::client->attach (	3316	cf::client->attach (
1950	on_destroy => sub {	3317	on_client_destroy => sub {
1951	my ($ns) = @_;	3318	my ($ns) = @_;
1952		3319
1953	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3320	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1954	},	3321	},
1955	);	3322	);
…		…
1970	our $safe = new Safe "safe";	3337	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3338	our $safe_hole = new Safe::Hole;
1972		3339
1973	$SIG{FPE} = 'IGNORE';	3340	$SIG{FPE} = 'IGNORE';
1974		3341
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3342	$safe->permit_only (Opcode::opset qw(
		3343	:base_core :base_mem :base_orig :base_math :base_loop
		3344	grepstart grepwhile mapstart mapwhile
		3345	sort time
		3346	));
1976		3347
1977	# here we export the classes and methods available to script code	3348	# here we export the classes and methods available to script code
1978		3349
1979	=pod	3350	=pod
1980		3351
1981	The following fucntions and emthods are available within a safe environment:	3352	The following functions and methods are available within a safe environment:
1982		3353
1983	cf::object contr pay_amount pay_player map	3354	cf::object
		3355	contr pay_amount pay_player map x y force_find force_add destroy
		3356	insert remove name archname title slaying race decrease split
		3357	value
		3358
1984	cf::object::player player	3359	cf::object::player
1985	cf::player peaceful	3360	player
1986	cf::map trigger	3361
		3362	cf::player
		3363	peaceful
		3364
		3365	cf::map
		3366	trigger
1987		3367
1988	=cut	3368	=cut
1989		3369
1990	for (	3370	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3371	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3372	insert remove inv nrof name archname title slaying race
		3373	decrease split destroy change_exp value msg lore send_msg)],
1992	["cf::object::player" => qw(player)],	3374	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3375	["cf::player" => qw(peaceful send_msg)],
1994	["cf::map" => qw(trigger)],	3376	["cf::map" => qw(trigger)],
1995	) {	3377	) {
1996	no strict 'refs';
1997	my ($pkg, @funs) = @$_;	3378	my ($pkg, @funs) = @$_;
1998	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3379	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1999	for @funs;	3380	for @funs;
2000	}	3381	}
2001		3382
…		…
2016		3397
2017	my $qcode = $code;	3398	my $qcode = $code;
2018	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3399	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2019	$qcode =~ s/\n/\\n/g;	3400	$qcode =~ s/\n/\\n/g;
2020		3401
		3402	%vars = (_dummy => 0) unless %vars;
		3403
		3404	my @res;
2021	local $_;	3405	local $_;
2022	local @safe::cf::_safe_eval_args = values %vars;
2023		3406
2024	my $eval =	3407	my $eval =
2025	"do {\n"	3408	"do {\n"
2026	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3409	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2027	. "#line 0 \"{$qcode}\"\n"	3410	. "#line 0 \"{$qcode}\"\n"
2028	. $code	3411	. $code
2029	. "\n}"	3412	. "\n}"
2030	;	3413	;
2031		3414
		3415	if ($CFG{safe_eval}) {
2032	sub_generation_inc;	3416	sub_generation_inc;
		3417	local @safe::cf::_safe_eval_args = values %vars;
2033	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3418	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2034	sub_generation_inc;	3419	sub_generation_inc;
		3420	} else {
		3421	local @cf::_safe_eval_args = values %vars;
		3422	@res = wantarray ? eval eval : scalar eval $eval;
		3423	}
2035		3424
2036	if ($@) {	3425	if ($@) {
2037	warn "$@";	3426	warn "$@",
2038	warn "while executing safe code '$code'\n";	3427	"while executing safe code '$code'\n",
2039	warn "with arguments " . (join " ", %vars) . "\n";	3428	"with arguments " . (join " ", %vars) . "\n";
2040	}	3429	}
2041		3430
2042	wantarray ? @res : $res[0]	3431	wantarray ? @res : $res[0]
2043	}	3432	}
2044		3433
…		…
2058	=cut	3447	=cut
2059		3448
2060	sub register_script_function {	3449	sub register_script_function {
2061	my ($fun, $cb) = @_;	3450	my ($fun, $cb) = @_;
2062		3451
2063	no strict 'refs';	3452	$fun = "safe::$fun" if $CFG{safe_eval};
2064	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3453	*$fun = $safe_hole->wrap ($cb);
2065	}	3454	}
2066		3455
2067	=back	3456	=back
2068		3457
2069	=cut	3458	=cut
2070		3459
2071	#############################################################################	3460	#############################################################################
		3461	# the server's init and main functions
2072		3462
2073	=head2 EXTENSION DATABASE SUPPORT	3463	sub load_facedata($) {
		3464	my ($path) = @_;
2074		3465
2075	Crossfire maintains a very simple database for extension use. It can	3466	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3467	# for this (global event?)
2077	excludes objects.	3468	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3469
2079	The parameter C<$family> should best start with the name of the extension	3470	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3471
2082	=over 4	3472	trace "loading facedata from $path\n";
2083		3473
2084	=item $hashref = cf::db_get $family	3474	my $facedata = decode_storable load_file $path;
2085		3475
2086	Return a hashref for use by the extension C<$family>, which can be	3476	$facedata->{version} == 2
2087	modified. After modifications, you have to call C<cf::db_dirty> or	3477	or cf::cleanup "$path: version mismatch, cannot proceed.";
2088	C<cf::db_sync>.
2089		3478
2090	=item $value = cf::db_get $family => $key	3479	# patch in the exptable
2091		3480	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2092	Returns a single value from the database	3481	$facedata->{resource}{"res/exp_table"} = {
2093		3482	type => FT_RSRC,
2094	=item cf::db_put $family => $hashref	3483	data => $exp_table,
2095		3484	hash => (Digest::MD5::md5 $exp_table),
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3485	};
		3486	cf::cede_to_tick;
2145		3487
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3488	{
		3489	my $faces = $facedata->{faceinfo};
2150		3490
2151	sub db_get($;$) {	3491	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3493
2157	sub db_put($$;$) {	3494	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3495	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3496	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2160	} else {	3497	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2161	$DB->{$_[0]} = $_[1];	3498	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2162	}
2163	db_dirty;
2164	}
2165		3499
2166	cf::global->attach (	3500	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3501	}
2171	);
2172	}
2173		3502
2174	#############################################################################	3503	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3504	next unless $info->{smooth};
2176		3505
2177	sub cfg_load {	3506	my $idx = cf::face::find $face
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3507	or next;
2179	or return;
2180		3508
2181	local $/;	3509	if (my $smooth = cf::face::find $info->{smooth}) {
2182	*CFG = YAML::Syck::Load <$fh>;	3510	cf::face::set_smooth $idx, $smooth;
		3511	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3512	} else {
		3513	error "smooth face '$info->{smooth}' not found for face '$face'";
		3514	}
2183		3515
		3516	cf::cede_to_tick;
		3517	}
		3518	}
		3519
		3520	{
		3521	my $anims = $facedata->{animinfo};
		3522
		3523	while (my ($anim, $info) = each %$anims) {
		3524	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3525	cf::cede_to_tick;
		3526	}
		3527
		3528	cf::anim::invalidate_all; # d'oh
		3529	}
		3530
		3531	{
		3532	my $res = $facedata->{resource};
		3533
		3534	while (my ($name, $info) = each %$res) {
		3535	if (defined $info->{type}) {
		3536	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3537
		3538	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3539	cf::face::set_type $idx, $info->{type};
		3540	} else {
		3541	$RESOURCE{$name} = $info; # unused
		3542	}
		3543
		3544	cf::cede_to_tick;
		3545	}
		3546	}
		3547
		3548	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3549
		3550	1
		3551	}
		3552
		3553	register_exticmd fx_want => sub {
		3554	my ($ns, $want) = @_;
		3555
		3556	while (my ($k, $v) = each %$want) {
		3557	$ns->fx_want ($k, $v);
		3558	}
		3559	};
		3560
		3561	sub load_resource_file($) {
		3562	my $guard = lock_acquire "load_resource_file";
		3563
		3564	my $status = load_resource_file_ $_[0];
		3565	get_slot 0.1, 100;
		3566	cf::arch::commit_load;
		3567
		3568	$status
		3569	}
		3570
		3571	sub reload_regions {
		3572	# HACK to clear player env face cache, we need some signal framework
		3573	# for this (global event?)
		3574	%ext::player_env::MUSIC_FACE_CACHE = ();
		3575
		3576	load_resource_file "$MAPDIR/regions"
		3577	or die "unable to load regions file\n";
		3578
		3579	for (cf::region::list) {
		3580	$_->{match} = qr/$_->{match}/
		3581	if exists $_->{match};
		3582	}
		3583	}
		3584
		3585	sub reload_facedata {
		3586	load_facedata "$DATADIR/facedata"
		3587	or die "unable to load facedata\n";
		3588	}
		3589
		3590	sub reload_archetypes {
		3591	load_resource_file "$DATADIR/archetypes"
		3592	or die "unable to load archetypes\n";
		3593	}
		3594
		3595	sub reload_treasures {
		3596	load_resource_file "$DATADIR/treasures"
		3597	or die "unable to load treasurelists\n";
		3598	}
		3599
		3600	sub reload_sound {
		3601	trace "loading sound config from $DATADIR/sound\n";
		3602
		3603	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3604
		3605	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3606	my $sound = $soundconf->{compat}[$_]
		3607	or next;
		3608
		3609	my $face = cf::face::find "sound/$sound->[1]";
		3610	cf::sound::set $sound->[0] => $face;
		3611	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3612	}
		3613
		3614	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3615	my $face = cf::face::find "sound/$v";
		3616	cf::sound::set $k => $face;
		3617	}
		3618	}
		3619
		3620	sub reload_resources {
		3621	trace "reloading resource files...\n";
		3622
		3623	reload_exp_table;
		3624	reload_materials;
		3625	reload_facedata;
		3626	reload_sound;
		3627	reload_archetypes;
		3628	reload_regions;
		3629	reload_treasures;
		3630
		3631	trace "finished reloading resource files\n";
		3632	}
		3633
		3634	sub reload_config {
		3635	trace "reloading config file...\n";
		3636
		3637	my $config = load_file "$CONFDIR/config";
		3638	utf8::decode $config;
		3639	*CFG = decode_yaml $config;
		3640
2184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3641	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2185		3642
2186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3643	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3644	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2188		3645
2189	if (exists $CFG{mlockall}) {	3646	if (exists $CFG{mlockall}) {
…		…
2193	};	3650	};
2194	warn $@ if $@;	3651	warn $@ if $@;
2195	}	3652	}
2196	}	3653	}
2197		3654
		3655	sub pidfile() {
		3656	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3657	or die "$PIDFILE: $!";
		3658	flock $fh, &Fcntl::LOCK_EX
		3659	or die "$PIDFILE: flock: $!";
		3660	$fh
		3661	}
		3662
		3663	# make sure only one server instance is running at any one time
		3664	sub atomic {
		3665	my $fh = pidfile;
		3666
		3667	my $pid = <$fh>;
		3668	kill 9, $pid if $pid > 0;
		3669
		3670	seek $fh, 0, 0;
		3671	print $fh $$;
		3672	}
		3673
		3674	sub main_loop {
		3675	trace "EV::loop starting\n";
		3676	if (1) {
		3677	EV::loop;
		3678	}
		3679	trace "EV::loop returned\n";
		3680	goto &main_loop unless $REALLY_UNLOOP;
		3681	}
		3682
2198	sub main {	3683	sub main {
		3684	cf::init_globals; # initialise logging
		3685
		3686	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3687	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3688	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3689	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3690
		3691	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3692
2199	# we must not ever block the main coroutine	3693	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3694	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3695	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3696	(async {
		3697	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3698	EV::loop EV::LOOP_ONESHOT;
		3699	})->prio (Coro::PRIO_MAX);
2203	};	3700	};
2204		3701
2205	cfg_load;	3702	evthread_start IO::AIO::poll_fileno;
2206	db_load;	3703
		3704	cf::sync_job {
		3705	cf::incloader::init ();
		3706
		3707	cf::init_anim;
		3708	cf::init_attackmess;
		3709	cf::init_dynamic;
		3710
		3711	cf::load_settings;
		3712
		3713	reload_resources;
		3714	reload_config;
		3715	db_init;
		3716
		3717	cf::init_uuid;
		3718	cf::init_signals;
		3719	cf::init_skills;
		3720
		3721	cf::init_beforeplay;
		3722
		3723	atomic;
		3724
2207	load_extensions;	3725	load_extensions;
2208	Event::loop;	3726
		3727	utime time, time, $RUNTIMEFILE;
		3728
		3729	# no (long-running) fork's whatsoever before this point(!)
		3730	use POSIX ();
		3731	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3732
		3733	cf::_post_init 0;
		3734	};
		3735
		3736	cf::object::thawer::errors_are_fatal 0;
		3737	info "parse errors in files are no longer fatal from this point on.\n";
		3738
		3739	my $free_main; $free_main = EV::idle sub {
		3740	undef $free_main;
		3741	undef &main; # free gobs of memory :)
		3742	};
		3743
		3744	goto &main_loop;
2209	}	3745	}
2210		3746
2211	#############################################################################	3747	#############################################################################
2212	# initialisation	3748	# initialisation and cleanup
2213		3749
		3750	# install some emergency cleanup handlers
		3751	BEGIN {
		3752	our %SIGWATCHER = ();
		3753	for my $signal (qw(INT HUP TERM)) {
		3754	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3755	cf::cleanup "SIG$signal";
		3756	};
		3757	}
		3758	}
		3759
		3760	sub write_runtime_sync {
		3761	my $t0 = AE::time;
		3762
		3763	# first touch the runtime file to show we are still running:
		3764	# the fsync below can take a very very long time.
		3765
		3766	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3767
		3768	my $guard = cf::lock_acquire "write_runtime";
		3769
		3770	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3771	or return;
		3772
		3773	my $value = $cf::RUNTIME + 90 + 10;
		3774	# 10 is the runtime save interval, for a monotonic clock
		3775	# 60 allows for the watchdog to kill the server.
		3776
		3777	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3778	and return;
		3779
		3780	# always fsync - this file is important
		3781	aio_fsync $fh
		3782	and return;
		3783
		3784	# touch it again to show we are up-to-date
		3785	aio_utime $fh, undef, undef;
		3786
		3787	close $fh
		3788	or return;
		3789
		3790	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3791	and return;
		3792
		3793	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3794
		3795	1
		3796	}
		3797
		3798	our $uuid_lock;
		3799	our $uuid_skip;
		3800
		3801	sub write_uuid_sync($) {
		3802	$uuid_skip ||= $_[0];
		3803
		3804	return if $uuid_lock;
		3805	local $uuid_lock = 1;
		3806
		3807	my $uuid = "$LOCALDIR/uuid";
		3808
		3809	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3810	or return;
		3811
		3812	my $value = uuid_seq uuid_cur;
		3813
		3814	unless ($value) {
		3815	info "cowardly refusing to write zero uuid value!\n";
		3816	return;
		3817	}
		3818
		3819	my $value = uuid_str $value + $uuid_skip;
		3820	$uuid_skip = 0;
		3821
		3822	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3823	and return;
		3824
		3825	# always fsync - this file is important
		3826	aio_fsync $fh
		3827	and return;
		3828
		3829	close $fh
		3830	or return;
		3831
		3832	aio_rename "$uuid~", $uuid
		3833	and return;
		3834
		3835	trace "uuid file written ($value).\n";
		3836
		3837	1
		3838
		3839	}
		3840
		3841	sub write_uuid($$) {
		3842	my ($skip, $sync) = @_;
		3843
		3844	$sync ? write_uuid_sync $skip
		3845	: async { write_uuid_sync $skip };
		3846	}
		3847
		3848	sub emergency_save() {
		3849	my $freeze_guard = cf::freeze_mainloop;
		3850
		3851	info "emergency_perl_save: enter\n";
		3852
		3853	# this is a trade-off: we want to be very quick here, so
		3854	# save all maps without fsync, and later call a global sync
		3855	# (which in turn might be very very slow)
		3856	local $USE_FSYNC = 0;
		3857
		3858	cf::sync_job {
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
		3861	# use a peculiar iteration method to avoid tripping on perl
		3862	# refcount bugs in for. also avoids problems with players
		3863	# and maps saved/destroyed asynchronously.
		3864	info "emergency_perl_save: begin player save\n";
		3865	for my $login (keys %cf::PLAYER) {
		3866	my $pl = $cf::PLAYER{$login} or next;
		3867	$pl->valid or next;
		3868	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3869	$pl->save;
		3870	}
		3871	info "emergency_perl_save: end player save\n";
		3872
		3873	cf::write_runtime_sync; # external watchdog should not bark
		3874
		3875	info "emergency_perl_save: begin map save\n";
		3876	for my $path (keys %cf::MAP) {
		3877	my $map = $cf::MAP{$path} or next;
		3878	$map->valid or next;
		3879	$map->save;
		3880	}
		3881	info "emergency_perl_save: end map save\n";
		3882
		3883	cf::write_runtime_sync; # external watchdog should not bark
		3884
		3885	info "emergency_perl_save: begin database checkpoint\n";
		3886	BDB::db_env_txn_checkpoint $DB_ENV;
		3887	info "emergency_perl_save: end database checkpoint\n";
		3888
		3889	info "emergency_perl_save: begin write uuid\n";
		3890	write_uuid_sync 1;
		3891	info "emergency_perl_save: end write uuid\n";
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
		3894
		3895	trace "emergency_perl_save: syncing database to disk";
		3896	BDB::db_env_txn_checkpoint $DB_ENV;
		3897
		3898	info "emergency_perl_save: starting sync\n";
		3899	IO::AIO::aio_sync sub {
		3900	info "emergency_perl_save: finished sync\n";
		3901	};
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
		3904
		3905	trace "emergency_perl_save: flushing outstanding aio requests";
		3906	while (IO::AIO::nreqs || BDB::nreqs) {
		3907	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3908	}
		3909
		3910	cf::write_runtime_sync; # external watchdog should not bark
		3911	};
		3912
		3913	info "emergency_perl_save: leave\n";
		3914	}
		3915
		3916	sub post_cleanup {
		3917	my ($make_core) = @_;
		3918
		3919	IO::AIO::flush;
		3920
		3921	error Carp::longmess "post_cleanup backtrace"
		3922	if $make_core;
		3923
		3924	my $fh = pidfile;
		3925	unlink $PIDFILE if <$fh> == $$;
		3926	}
		3927
		3928	# a safer delete_package, copied from Symbol
		3929	sub clear_package($) {
		3930	my $pkg = shift;
		3931
		3932	# expand to full symbol table name if needed
		3933	unless ($pkg =~ /^main::.*::$/) {
		3934	$pkg = "main$pkg" if $pkg =~ /^::/;
		3935	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3936	$pkg .= '::' unless $pkg =~ /::$/;
		3937	}
		3938
		3939	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3940	my $stem_symtab = *{$stem}{HASH};
		3941
		3942	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3943	or return;
		3944
		3945	# clear all symbols
		3946	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3947	for my $name (keys %$leaf_symtab) {
		3948	_gv_clear *{"$pkg$name"};
		3949	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3950	}
		3951	}
		3952
2214	sub reload() {	3953	sub do_reload_perl() {
2215	# can/must only be called in main	3954	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3955	unless (in_main) {
2217	warn "can only reload from main coroutine\n";	3956	error "can only reload from main coroutine";
2218	return;	3957	return;
2219	}	3958	}
2220		3959
2221	warn "reloading...";	3960	return if $RELOAD++;
2222		3961
2223	my $guard = freeze_mainloop;	3962	my $t1 = AE::time;
		3963
		3964	while ($RELOAD) {
		3965	cf::get_slot 0.1, -1, "reload_perl";
		3966	info "perl_reload: reloading...";
		3967
		3968	trace "perl_reload: entering sync_job";
		3969
		3970	cf::sync_job {
2224	cf::emergency_save;	3971	#cf::emergency_save;
2225		3972
2226	eval {	3973	trace "perl_reload: cancelling all extension coros";
2227	# if anything goes wrong in here, we should simply crash as we already saved
2228
2229	# cancel all watchers
2230	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}
2233
2234	# cancel all extension coros
2235	$_->cancel for values %EXT_CORO;	3974	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3975	%EXT_CORO = ();
2237		3976
2238	# unload all extensions	3977	trace "perl_reload: removing commands";
2239	for (@exts) {	3978	%COMMAND = ();
2240	warn "unloading <$_>";
2241	unload_extension $_;
2242	}
2243		3979
2244	# unload all modules loaded from $LIBDIR	3980	trace "perl_reload: removing ext/exti commands";
2245	while (my ($k, $v) = each %INC) {	3981	%EXTCMD = ();
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3982	%EXTICMD = ();
2247		3983
2248	warn "removing <$k>";	3984	trace "perl_reload: unloading/nuking all extensions";
2249	delete $INC{$k};	3985	for my $pkg (@EXTS) {
		3986	trace "... unloading $pkg";
2250		3987
2251	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;
2253
2254	if (my $cb = $k->can ("unload_module")) {	3988	if (my $cb = $pkg->can ("unload")) {
		3989	eval {
2255	$cb->();	3990	$cb->($pkg);
		3991	1
		3992	} or error "$pkg unloaded, but with errors: $@";
		3993	}
		3994
		3995	trace "... clearing $pkg";
		3996	clear_package $pkg;
2256	}	3997	}
2257		3998
2258	Symbol::delete_package $k;	3999	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4000	while (my ($k, $v) = each %INC) {
		4001	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4002
		4003	trace "... unloading $k";
		4004	delete $INC{$k};
		4005
		4006	$k =~ s/\.pm$//;
		4007	$k =~ s/\//::/g;
		4008
		4009	if (my $cb = $k->can ("unload_module")) {
		4010	$cb->();
		4011	}
		4012
		4013	clear_package $k;
2259	}	4014	}
2260		4015
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	4016	trace "perl_reload: getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	4017	clear_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4018	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		4019
2269	# remove register_script_function callbacks	4020	trace "perl_reload: unloading cf.pm \"a bit\"";
2270	# TODO
2271
2272	# unload cf.pm "a bit"
2273	delete $INC{"cf.pm"};	4021	delete $INC{"cf.pm"};
		4022	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2274		4023
2275	# don't, removes xs symbols, too,	4024	# don't, removes xs symbols, too,
2276	# and global variables created in xs	4025	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	4026	#clear_package __PACKAGE__;
2278		4027
2279	# reload cf.pm	4028	info "perl_reload: unload completed, starting to reload now";
2280	warn "reloading cf.pm";	4029
		4030	trace "perl_reload: reloading cf.pm";
2281	require cf;	4031	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4032	cf::_connect_to_perl_1;
2283		4033
2284	# load config and database again	4034	trace "perl_reload: loading config and database again";
2285	cf::cfg_load;	4035	cf::reload_config;
2286	cf::db_load;
2287		4036
2288	# load extensions	4037	trace "perl_reload: loading extensions";
2289	warn "load extensions";
2290	cf::load_extensions;	4038	cf::load_extensions;
2291		4039
2292	# reattach attachments to objects	4040	if ($REATTACH_ON_RELOAD) {
2293	warn "reattach";	4041	trace "perl_reload: reattaching attachments to objects/players";
2294	_global_reattach;	4042	_global_reattach; # objects, sockets
		4043	trace "perl_reload: reattaching attachments to maps";
2295	reattach $_ for values %MAP;	4044	reattach $_ for values %MAP;
		4045	trace "perl_reload: reattaching attachments to players";
		4046	reattach $_ for values %PLAYER;
		4047	}
		4048
		4049	cf::_post_init 1;
		4050
		4051	trace "perl_reload: leaving sync_job";
		4052
		4053	1
		4054	} or do {
		4055	error $@;
		4056	cf::cleanup "perl_reload: error, exiting.";
		4057	};
		4058
		4059	--$RELOAD;
		4060	}
		4061
		4062	$t1 = AE::time - $t1;
		4063	info "perl_reload: completed in ${t1}s\n";
		4064	};
		4065
		4066	our $RELOAD_WATCHER; # used only during reload
		4067
		4068	sub reload_perl() {
		4069	# doing reload synchronously and two reloads happen back-to-back,
		4070	# coro crashes during coro_state_free->destroy here.
		4071
		4072	$RELOAD_WATCHER ||= cf::async {
		4073	Coro::AIO::aio_wait cache_extensions;
		4074
		4075	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4076	do_reload_perl;
		4077	undef $RELOAD_WATCHER;
		4078	};
2296	};	4079	};
2297
2298	if ($@) {
2299	warn $@;
2300	warn "error while reloading, exiting.";
2301	exit 1;
2302	}
2303
2304	warn "reloaded successfully";
2305	};
2306
2307	#############################################################################
2308
2309	unless ($LINK_MAP) {
2310	$LINK_MAP = cf::map::new;
2311
2312	$LINK_MAP->width (41);
2313	$LINK_MAP->height (41);
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	4080	}
2349
2350	register "<global>", __PACKAGE__;
2351		4081
2352	register_command "reload" => sub {	4082	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	4083	my ($who, $arg) = @_;
2354		4084
2355	if ($who->flag (FLAG_WIZ)) {	4085	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	4086	$who->message ("reloading server.");
		4087	async {
		4088	$Coro::current->{desc} = "perl_reload";
		4089	reload_perl;
		4090	};
2359	}	4091	}
2360	};	4092	};
2361		4093
2362	unshift @INC, $LIBDIR;	4094	#############################################################################
2363		4095
2364	$TICK_WATCHER = Event->timer (	4096	my $bug_warning = 0;
2365	reentrant => 0,	4097
2366	prio => 0,	4098	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	4099	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	4100
2369	cb => sub {	4101	sub wait_for_tick() {
		4102	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4103
		4104	my $signal = new Coro::Signal;
		4105	push @WAIT_FOR_TICK, $signal;
		4106	$signal->wait;
		4107	}
		4108
		4109	sub wait_for_tick_begin() {
		4110	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4111
		4112	my $signal = new Coro::Signal;
		4113	push @WAIT_FOR_TICK_BEGIN, $signal;
		4114	$signal->wait;
		4115	}
		4116
		4117	sub tick {
		4118	if ($Coro::current != $Coro::main) {
		4119	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4120	unless ++$bug_warning > 10;
		4121	return;
		4122	}
		4123
2370	cf::server_tick; # one server iteration	4124	cf::server_tick; # one server iteration
2371	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;
2373		4125
2374	# if we are delayed by four ticks or more, skip them all	4126	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2376		4127
2377	$TICK_WATCHER->at ($NEXT_TICK);	4128	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2378	$TICK_WATCHER->start;	4129	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2379	},	4130	Coro::async_pool {
2380	);	4131	$Coro::current->{desc} = "runtime saver";
2381
2382	IO::AIO::max_poll_time $TICK * 0.2;
2383
2384	Event->io (
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,
2394	after => 0,
2395	interval => 10,
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	4132	write_runtime_sync
2399	or warn "ERROR: unable to write runtime file: $!";	4133	or error "ERROR: unable to write runtime file: $!";
2400	})->();	4134	};
2401	},	4135	}
2402	);	4136
		4137	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4138	$sig->send;
		4139	}
		4140	while (my $sig = shift @WAIT_FOR_TICK) {
		4141	$sig->send;
		4142	}
		4143
		4144	$LOAD = ($NOW - $TICK_START) / $TICK;
		4145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4146
		4147	if (0) {
		4148	if ($NEXT_TICK) {
		4149	my $jitter = $TICK_START - $NEXT_TICK;
		4150	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4151	debug "jitter $JITTER\n";#d#
		4152	}
		4153	}
		4154	}
		4155
		4156	{
		4157	# configure BDB
		4158
		4159	BDB::min_parallel 16;
		4160	BDB::max_poll_reqs $TICK * 0.1;
		4161	$AnyEvent::BDB::WATCHER->priority (1);
		4162
		4163	unless ($DB_ENV) {
		4164	$DB_ENV = BDB::db_env_create;
		4165	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4166	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4167	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4168	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4169	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4170
		4171	cf::sync_job {
		4172	eval {
		4173	BDB::db_env_open
		4174	$DB_ENV,
		4175	$BDBDIR,
		4176	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4177	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4178	0666;
		4179
		4180	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4181	};
		4182
		4183	cf::cleanup "db_env_open(db): $@" if $@;
		4184	};
		4185	}
		4186
		4187	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4188	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4189	};
		4190	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4191	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4192	};
		4193	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4194	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4195	};
		4196	}
		4197
		4198	{
		4199	# configure IO::AIO
		4200
		4201	IO::AIO::min_parallel 8;
		4202	IO::AIO::max_poll_time $TICK * 0.1;
		4203	undef $AnyEvent::AIO::WATCHER;
		4204	}
		4205
		4206	our $_log_backtrace;
		4207	our $_log_backtrace_last;
		4208
		4209	sub _log_backtrace {
		4210	my ($msg, @addr) = @_;
		4211
		4212	$msg =~ s/\n$//;
		4213
		4214	if ($_log_backtrace_last eq $msg) {
		4215	LOG llevInfo, "[ABT] $msg\n";
		4216	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4217	# limit the # of concurrent backtraces
		4218	} elsif ($_log_backtrace < 2) {
		4219	$_log_backtrace_last = $msg;
		4220	++$_log_backtrace;
		4221	my $perl_bt = Carp::longmess $msg;
		4222	async {
		4223	$Coro::current->{desc} = "abt $msg";
		4224
		4225	my @bt = fork_call {
		4226	@addr = map { sprintf "%x", $_ } @addr;
		4227	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4228	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4229	or die "addr2line: $!";
		4230
		4231	my @funcs;
		4232	my @res = <$fh>;
		4233	chomp for @res;
		4234	while (@res) {
		4235	my ($func, $line) = splice @res, 0, 2, ();
		4236	push @funcs, "[$func] $line";
		4237	}
		4238
		4239	@funcs
		4240	};
		4241
		4242	LOG llevInfo, "[ABT] $perl_bt\n";
		4243	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4244	LOG llevInfo, "[ABT] $_\n" for @bt;
		4245	--$_log_backtrace;
		4246	};
		4247	} else {
		4248	LOG llevInfo, "[ABT] $msg\n";
		4249	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4250	}
		4251	}
		4252
		4253	# load additional modules
		4254	require "cf/$_.pm" for @EXTRA_MODULES;
		4255	cf::_connect_to_perl_2;
2403		4256
2404	END { cf::emergency_save }	4257	END { cf::emergency_save }
2405		4258
2406	1	4259	1
2407		4260

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