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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.569 by root, Wed May 4 07:36:40 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	123	our $NEXT_TICK;
50	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
51		132
52	our %CFG;	133	our %CFG;
53		134
54	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
56		138
57	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	141	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		142
65	# used to convert map paths into valid unix filenames by replacing / by ∕	143	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		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 $REALLY_UNLOOP; # never set to true, please :)
		155
68	binmode STDOUT;	156	binmode STDOUT;
69	binmode STDERR;	157	binmode STDERR;
70		158
71	# read virtual server time, if available	159	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
76	}	164	}
77		165
78	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	167
80	mkdir cf::localdir . "/" . cf::tmpdir;	168	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		170
84	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::"} };
85		189
86	#############################################################################	190	#############################################################################
87		191
88	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
89		193
…		…
96	=item $cf::RUNTIME	200	=item $cf::RUNTIME
97		201
98	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
99	every server tick.	203	every server tick.
100		204
101	=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
102		208
103	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		213
106	=item $cf::NOW	214	=item $cf::NOW
107		215
108	The time of the last (current) server tick.	216	The time of the last (current) server tick.
109		217
110	=item $cf::TICK	218	=item $cf::TICK
111		219
112	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
113		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
114	=item %cf::CFG	232	=item %cf::CFG
115		233
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	235	from wherever your confdir points to.
118		236
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		238
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	240	returns directly I<after> the tick processing (and consequently, can only wake one thread
123	processing has been done. Call C<< ->wait >> on them to maximise the	241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
125		259
126	=back	260	=back
127		261
128	=cut	262	=cut
129		263
130	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
131	*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 {
132	my $msg = join "", @_;	271	my $msg = join "", @_;
133	utf8::encode $msg;
134		272
135	$msg .= "\n"	273	$msg .= "\n"
136	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
137		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
138	LOG llevError, $msg;	278	LOG llevWarn, $msg;
139	};	279	};
140	}	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	};
141		294
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@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';
147	@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)
148		302
149	# 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
150	# within the Safe compartment.	304	# within the Safe compartment.
151	for my $pkg (qw(	305	for my $pkg (qw(
152	cf::global cf::attachable	306	cf::global cf::attachable
153	cf::object cf::object::player	307	cf::object cf::object::player
154	cf::client cf::player	308	cf::client cf::player
155	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
156	cf::map cf::party cf::region	311	cf::party cf::region
157	)) {	312	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	314	}
161		315
162	$Event::DIED = sub {	316	$EV::DIED = sub {
163	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
164	};	318	};
		319
		320	#############################################################################
		321
		322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
165		326
166	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
167		328
168	=over 4	329	=over 4
169		330
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	350	$d
190	} || "[unable to dump $_[0]: '$@']";	351	} || "[unable to dump $_[0]: '$@']";
191	}	352	}
192		353
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	354	=item $scalar = load_file $path
194		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
195	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
196		369
197	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
198		371
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
207		373
208	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
209		375
210	=cut	376	=cut
211		377
212	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
214	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
		399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
215	}	443	}
216		444
217	=item cf::lock_wait $string	445	=item cf::lock_wait $string
218		446
219	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
220		448
221	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
222		450
223	Wait until the given lock is available and then acquires it and returns	451	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
226	returned.	454	returned.
227		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
228	Lock names should begin with a unique identifier (for example, cf::map::find	459	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
230		461
231	=cut	462	=item $locked = cf::lock_active $string
232		463
233	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
234		469
235	sub lock_wait($) {	470	sub lock_wait($) {
236	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	472	}
244		473
245	sub lock_acquire($) {	474	sub lock_acquire($) {
246	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
247		477
248	# wait, to be sure we are not locked	478	sub lock_active($) {
249	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	480	}
258		481
259	sub freeze_mainloop {	482	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
261		484
262	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	486	}
264	$guard	487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
265	}	572	}
266		573
267	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
268		575
269	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		581
275	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
276		583
277	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
278		585
279	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
282		590
283	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
286	fast or be very important.	594	fast or be very important.
…		…
288	=cut	596	=cut
289		597
290	sub sync_job(&) {	598	sub sync_job(&) {
291	my ($job) = @_;	599	my ($job) = @_;
292		600
293	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
294	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
296		606
297	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	608
299	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
300		610
301	my $busy = 1;	611	my $busy = 1;
302	my @res;	612	my @res;
303		613
304	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	616	@res = eval { $job->() };
306	warn $@ if $@;	617	error $@ if $@;
307	undef $busy;	618	undef $busy;
308	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
309		620
310	while ($busy) {	621	while ($busy) {
311	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
312	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
313		632
314	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
315	} else {	634	} else {
316	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
317		636
…		…
337	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
338		657
339	$coro	658	$coro
340	}	659	}
341		660
342	sub write_runtime {	661	=item fork_call { }, @args
343	return unless $TICK_WATCHER->is_active;
344		662
345	my $runtime = cf::localdir . "/runtime";	663	Executes the given code block with the given arguments in a seperate
		664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
346		667
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	668	=cut
348	or return;
349		669
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	670	sub post_fork {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	671	reset_signals;
352	and return;	672	}
353		673
354	aio_fsync $fh	674	sub fork_call(&@) {
355	and return;	675	my ($cb, @args) = @_;
356		676
357	close $fh	677	# we seemingly have to make a local copy of the whole thing,
358	or return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
359		680
360	aio_rename "$runtime~", $runtime	681	my @res = Coro::Util::fork_eval {
361	and return;	682	cf::post_fork;
		683	&$cb
		684	} @args;
362		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
363	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 });
364	}	864	}
365		865
366	=back	866	=back
367		867
368	=cut	868	=cut
369		869
370	#############################################################################	870	#############################################################################
371		871
372	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
373		873
374	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
375	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")
376	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
377		877
378	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>
379	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
380	crossfire+).	880	Deliantra).
381		881
382	=over 4	882	=over 4
383		883
384	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
385		885
…		…
429	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
430		930
431	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
432	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
433		933
434	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
435	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.
436		936
437	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
438		938
439	=over 4	939	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	1000	our @CB_MAP = ();
501		1001
502	my %attachment;	1002	my %attachment;
503		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
504	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
506		1012
507	use sort 'stable';	1013	use sort 'stable';
508		1014
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
543		1049
544	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		1054
549	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
551		1057
552	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
557		1063
558	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
559	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
560		1066
561	} elsif (ref $type) {	1067	} elsif (ref $type) {
562	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
563		1069
564	} else {	1070	} else {
565	shift @arg;	1071	shift @arg;
566	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
567	}	1073	}
568	}	1074	}
569	}	1075	}
570		1076
571	sub _object_attach {	1077	sub _object_attach {
…		…
581	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
582	}	1088	}
583		1089
584	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
585	} else {	1091	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
587	}	1093	}
588		1094
589	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
590	}	1096	}
591		1097
…		…
593	if (ref $_[0]) {	1099	if (ref $_[0]) {
594	_object_attach @_;	1100	_object_attach @_;
595	} else {	1101	} else {
596	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
597	}	1103	}
		1104	_recalc_want;
598	};	1105	};
599		1106
600	# all those should be optimised	1107	# all those should be optimised
601	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
606	reattach ($obj);	1113	reattach ($obj);
607	} else {	1114	} else {
608	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
609	}	1116	}
		1117	_recalc_want;
610	};	1118	};
611		1119
612	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
614		1122
…		…
629	";	1137	";
630	die if $@;	1138	die if $@;
631	}	1139	}
632		1140
633	our $override;	1141	our $override;
634	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?
635		1143
636	sub override {	1144	sub override {
637	$override = 1;	1145	$override = 1;
638	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
639	}	1147	}
640		1148
641	sub do_invoke {	1149	sub do_invoke {
642	my $event = shift;	1150	my $event = shift;
643	my $callbacks = shift;	1151	my $callbacks = shift;
644		1152
645	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
646		1154
647	local $override;	1155	local $override;
648		1156
649	for (@$callbacks) {	1157	for (@$callbacks) {
650	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
651		1159
652	if ($@) {	1160	if ($@) {
653	warn "$@";
654	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
655	override;	1162	override;
656	}	1163	}
657		1164
658	return 1 if $override;	1165	return 1 if $override;
659	}	1166	}
660		1167
661	0	1168	0
662	}	1169	}
663		1170
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1172
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1174
668	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
669		1176
670	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
671	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
672	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1180
674	=back	1181	=back
675		1182
676	=cut	1183	=cut
677		1184
678	#############################################################################	1185	#############################################################################
679	# 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	}
680		1229
681	sub reattach {	1230	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
683	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
684		1236
685	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
686		1238
687	@$registry = ();	1239	@$registry = ();
688		1240
…		…
693	for (@$attach) {	1245	for (@$attach) {
694	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
695	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
696	}	1248	}
697	} else {	1249	} else {
698	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
699	}	1251	}
700	}	1252	}
701	}	1253	}
702		1254
703	cf::attachable->attach (	1255	cf::attachable->attach (
704	prio => -1000000,	1256	prio => -1000000,
705	on_instantiate => sub {	1257	on_instantiate => sub {
706	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
707		1259
708	$data = from_json $data;	1260	$data = decode_json $data;
709		1261
710	for (@$data) {	1262	for (@$data) {
711	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
712		1264
713	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1281	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
731		1283
732	sync_job {	1284	sync_job {
733	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
736		1290
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$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;
740	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
741	close $fh;	1298	aio_close $fh;
742		1299
743	if (@$objs) {	1300	if (@$objs) {
744	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) {
745	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	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;
748	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
749	close $fh;	1309	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
751	}	1311	}
752	} else {	1312	} else {
753	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
754	}	1314	}
755		1315
756	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1320	} else {
758	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
759	}	1322	}
760	} else {	1323	} else {
761	aio_unlink $filename;	1324	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
763	}	1326	}
764	}	1327	};
765	}	1328	}
766		1329
767	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
769		1332
…		…
781	or return;	1344	or return;
782		1345
783	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
785	or return;	1348	or return;
		1349
786	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
787	}	1352	}
788		1353
		1354	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
791	return ($data, $av);	1359	($data, $av)
792	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
793		1367
794	#############################################################################	1368	#############################################################################
795	# command handling &c	1369	# command handling &c
796		1370
797	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1385	}
812		1386
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1388
815	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.
816		1394
817	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
818	called.	1396	called.
819		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
820	=cut	1409	=cut
821		1410
822	sub register_extcmd {	1411	sub register_extcmd {
823	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
824		1413
825	$EXTCMD{$name} = $cb;	1414	$EXTCMD{$name} = $cb;
826	}	1415	}
827		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
		1424
828	cf::player->attach (	1425	cf::player->attach (
829	on_command => sub {	1426	on_unknown_command => sub {
830	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
831		1428
832	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
833	or return;	1430	or return;
834		1431
…		…
839	cf::override;	1436	cf::override;
840	},	1437	},
841	on_extcmd => sub {	1438	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
843		1440
844	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1442
846	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
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
852	} else {	1458	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1460	}
855		1461
856	cf::override;	1462	cf::override;
857	},	1463	},
858	);	1464	);
859		1465
		1466	# "readahead" all extensions
860	sub load_extension {	1467	sub cache_extensions {
861	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
862		1469
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1473	}
888	die $@;
889	}	1474	};
890		1475
891	push @EXTS, $pkg;	1476	$grp
892	}	1477	}
893		1478
894	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
895	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1486	next unless -r $path;
897	eval {	1487
898	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	}
899	1	1551	}
900	} 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	}
901	}	1564	};
902	}	1565	}
903		1566
904	#############################################################################	1567	#############################################################################
905		1568
		1569	=back
		1570
906	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
907		1572
908	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
909		1574
910	=cut	1575	=cut
911		1576
912	package cf::player;	1577	package cf::player;
913		1578
…		…
915		1580
916	=head3 cf::player	1581	=head3 cf::player
917		1582
918	=over 4	1583	=over 4
919		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
920	=item cf::player::find $login	1599	=item cf::player::find $login
921		1600
922	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
923		1602
924	=cut	1603	=cut
925		1604
926	sub playerdir($) {	1605	sub playerdir($) {
927	cf::localdir	1606	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1608	}
933		1609
934	sub path($) {	1610	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1612
937	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
938	}	1614	}
939		1615
940	sub find_active($) {	1616	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
945		1621
946	sub exists($) {	1622	sub exists($) {
947	my ($login) = @_;	1623	my ($login) = @_;
948		1624
949	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
951	}	1627	}
952		1628
953	sub find($) {	1629	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1631	my $login = $_[0];
956		1632
957	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
958		1634
959	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
960	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
961	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;
962	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
963	}	1652	}
964	}	1653	}
965	}	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	);
966		1668
967	sub save($) {	1669	sub save($) {
968	my ($pl) = @_;	1670	my ($pl) = @_;
969		1671
970	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
975	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
976		1678
977	aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
979		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
980	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
981	Coro::cede;	1688	cf::cede_to_tick;
982	}	1689	}
983		1690
984	sub new($) {	1691	sub new($) {
985	my ($login) = @_;	1692	my ($login) = @_;
986		1693
…		…
992	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
993		1700
994	$self	1701	$self
995	}	1702	}
996		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
997	=item $pl->quit_character	1714	=item $pl->quit_character
998		1715
999	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
1000	be destroyed. May block for a long time.	1717	be destroyed. May block for a long time.
1001		1718
1002	=cut	1719	=cut
1003		1720
1004	sub quit_character {	1721	sub quit_character {
1005	my ($pl) = @_;	1722	my ($pl) = @_;
1006		1723
		1724	my $name = $pl->ob->name;
		1725
1007	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1008	$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
1009		1728
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1011	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1013	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1014		1737
1015	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1019	$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
1020	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;
1021	}	1764	}
1022		1765
1023	=item cf::player::list_logins	1766	=item cf::player::list_logins
1024		1767
1025	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
1026	while and may block, so not sync_job-capable, ever.	1769	while and may block, so not sync_job-capable, ever.
1027		1770
1028	=cut	1771	=cut
1029		1772
1030	sub list_logins {	1773	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1774	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1775	or return [];
1033		1776
1034	my @logins;	1777	my @logins;
1035		1778
1036	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") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1786	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
1040		1789
1041	utf8::decode $login;	1790	utf8::decode $login;
1042	push @logins, $login;	1791	push @logins, $login;
1043	}	1792	}
1044		1793
1045	\@logins	1794	\@logins
1046	}	1795	}
1047		1796
1048	=item $player->maps	1797	=item $player->maps
1049		1798
		1799	=item cf::player::maps $login
		1800
1050	Returns an arrayref of map paths that are private for this	1801	Returns an arrayref of map paths that are private for this
1051	player. May block.	1802	player. May block.
1052		1803
1053	=cut	1804	=cut
1054		1805
1055	sub maps($) {	1806	sub maps($) {
1056	my ($pl) = @_;	1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1810
1058	my $files = aio_readdir playerdir $pl	1811	my $files = aio_readdir playerdir $pl
1059	or return;	1812	or return;
1060		1813
1061	my @paths;	1814	my @paths;
…		…
1063	for (@$files) {	1816	for (@$files) {
1064	utf8::decode $_;	1817	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1818	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1819	next unless /^$PATH_SEP/o;
1067		1820
1068	s/\.map$//;	1821	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1822	}
1071		1823
1072	\@paths	1824	\@paths
1073	}	1825	}
1074		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1076		1832
1077	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1078		1834
1079	=cut	1835	=cut
1080		1836
1081	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1083		1839
1084	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1841	}
1088		1842
1089	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		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	}
1090		1885
1091	=back	1886	=back
1092
1093		1887
1094	=head3 cf::map	1888	=head3 cf::map
1095		1889
1096	=over 4	1890	=over 4
1097		1891
…		…
1101		1895
1102	use Fcntl;	1896	use Fcntl;
1103	use Coro::AIO;	1897	use Coro::AIO;
1104		1898
1105	use overload	1899	use overload
1106	'""' => \&as_string;	1900	'""' => \&as_string,
		1901	fallback => 1;
1107		1902
1108	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1110		1905
1111	sub generate_random_map {	1906	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1907	my ($self, $rmp) = @_;
1113		1908
1114	# mit "rum" bekleckern, nicht	1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
1115	$self->_create_random_map (	1911	$self->_create_random_map ($rmp);
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1119	$rmp->{exit_on_final_map},
1120	$rmp->{xsize}, $rmp->{ysize},
1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1123	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1124	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)
1128	}	1912	}
		1913
		1914	=item cf::map->register ($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
1129		1921
1130	sub register {	1922	sub register {
1131	my (undef, $regex) = @_;	1923	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1924	my $pkg = caller;
1133		1925
1134	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1926	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1927
1137	$EXT_MAP{$pkg} = qr<$regex>;	1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1929	}
1139		1930
1140	# also paths starting with '/'	1931	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	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	}
1142		1943
1143	sub normalise {	1944	sub normalise {
1144	my ($path, $base) = @_;	1945	my ($path, $base) = @_;
		1946
		1947	$path = "$path"; # make sure it's a string
		1948
		1949	$path =~ s/\.map$//;
1145		1950
1146	# map plan:	1951	# map plan:
1147	#	1952	#
1148	# /! non-realised random map exit (special hack!)	1953	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1954	# {... are special paths that are not being touched
…		…
1162	$base =~ s{[^/]+/?$}{};	1967	$base =~ s{[^/]+/?$}{};
1163	$path = "$base/$path";	1968	$path = "$base/$path";
1164	}	1969	}
1165		1970
1166	for ($path) {	1971	for ($path) {
1167	redo if s{//}{/};
1168	redo if s{/\.?/}{/};	1972	redo if s{/\.?/}{/};
1169	redo if s{/[^/]+/\.\./}{/};	1973	redo if s{/[^/]+/\.\./}{/};
1170	}	1974	}
1171		1975
1172	$path	1976	$path
…		…
1177		1981
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1983
1180	$path = normalise $path, $base;	1984	$path = normalise $path, $base;
1181		1985
1182	for my $pkg (keys %EXT_MAP) {	1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1988	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1989	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1990	$self->init; # pass $1 etc.
1187	return $self;	1991	return $self;
1188	}	1992	}
1189	}	1993	}
1190		1994
1191	Carp::carp "unable to resolve path '$path'.";	1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
1192	()	1996	()
1193	}	1997	}
1194		1998
		1999	# may re-bless or do other evil things
1195	sub init {	2000	sub init {
1196	my ($self) = @_;	2001	my ($self) = @_;
1197		2002
1198	$self	2003	$self
1199	}	2004	}
…		…
1211		2016
1212	# the original (read-only) location	2017	# the original (read-only) location
1213	sub load_path {	2018	sub load_path {
1214	my ($self) = @_;	2019	my ($self) = @_;
1215		2020
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2021	"$MAPDIR/$self->{path}.map"
1217	}	2022	}
1218		2023
1219	# the temporary/swap location	2024	# the temporary/swap location
1220	sub save_path {	2025	sub save_path {
1221	my ($self) = @_;	2026	my ($self) = @_;
1222		2027
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2029	"$TMPDIR/$path.map"
1225	}	2030	}
1226		2031
1227	# the unique path, undef == no special unique path	2032	# the unique path, undef == no special unique path
1228	sub uniq_path {	2033	sub uniq_path {
1229	my ($self) = @_;	2034	my ($self) = @_;
1230		2035
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2037	"$UNIQUEDIR/$path"
1233	}	2038	}
1234		2039
1235	# and all this just because we cannot iterate over	2040	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	2041	my ($self) = @_;
1239		2042
1240	$_->change_map_light ($change)	2043	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	2044
		2045	$self->do_decay_objects;
1242	}	2046	}
1243		2047
1244	sub unlink_save {	2048	sub unlink_save {
1245	my ($self) = @_;	2049	my ($self) = @_;
1246		2050
1247	utf8::encode (my $save = $self->save_path);	2051	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	2054	}
1251		2055
1252	sub load_header_from($) {	2056	sub load_header_from($) {
1253	my ($self, $path) = @_;	2057	my ($self, $path) = @_;
1254		2058
1255	utf8::encode $path;	2059	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1257	or return;	2061	or return;
1258		2062
1259	$self->_load_header ($path)	2063	$self->_load_header ($f)
1260	or return;	2064	or return;
1261		2065
		2066	local $MAP_LOADING{$self->{path}} = $self;
		2067	$f->resolve_delayed_derefs;
		2068
1262	$self->{load_path} = $path;	2069	$self->{load_path} = $path;
1263		2070
1264	1	2071	1
1265	}	2072	}
1266		2073
		2074	# used to laod the header of an original map
1267	sub load_orig {	2075	sub load_header_orig {
1268	my ($self) = @_;	2076	my ($self) = @_;
1269		2077
1270	$self->load_header_from ($self->load_path)	2078	$self->load_header_from ($self->load_path)
1271	}	2079	}
1272		2080
		2081	# used to laod the header of an instantiated map
1273	sub load_temp {	2082	sub load_header_temp {
1274	my ($self) = @_;	2083	my ($self) = @_;
1275		2084
1276	$self->load_header_from ($self->save_path)	2085	$self->load_header_from ($self->save_path)
		2086	}
		2087
		2088	# called after loading the header from an instantiated map
		2089	sub prepare_temp {
		2090	my ($self) = @_;
		2091
		2092	$self->last_access ((delete $self->{last_access})
		2093	|| $cf::RUNTIME); #d#
		2094	# safety
		2095	$self->{instantiate_time} = $cf::RUNTIME
		2096	if $self->{instantiate_time} > $cf::RUNTIME;
		2097	}
		2098
		2099	# called after loading the header from an original map
		2100	sub prepare_orig {
		2101	my ($self) = @_;
		2102
		2103	$self->{load_original} = 1;
		2104	$self->{instantiate_time} = $cf::RUNTIME;
		2105	$self->last_access ($cf::RUNTIME);
		2106	$self->instantiate;
1277	}	2107	}
1278		2108
1279	sub load_header {	2109	sub load_header {
1280	my ($self) = @_;	2110	my ($self) = @_;
1281		2111
1282	if ($self->load_temp) {	2112	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	2113	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	2114	} else {
1289	$self->load_orig	2115	$self->load_header_orig
1290	or return;	2116	or return;
1291		2117	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	2118	}
		2119
		2120	$self->{deny_reset} = 1
		2121	if $self->no_reset;
		2122
		2123	$self->default_region (cf::region::find_by_path $self->{path})
		2124	unless $self->default_region;
1297		2125
1298	1	2126	1
1299	}	2127	}
1300		2128
1301	sub find;	2129	sub find;
1302	sub find {	2130	sub find {
1303	my ($path, $origin) = @_;	2131	my ($path, $origin) = @_;
1304		2132
		2133	cf::cede_to_tick;
		2134
1305	$path = normalise $path, $origin && $origin->path;	2135	$path = normalise $path, $origin;
1306		2136
		2137	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	2138	my $guard2 = cf::lock_acquire "map_find:$path";
1308		2139
1309	$cf::MAP{$path} || do {	2140	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	2141	my $map = new_from_path cf::map $path
1312	or return;	2142	or return;
1313		2143
1314	$map->{last_save} = $cf::RUNTIME;	2144	$map->{last_save} = $cf::RUNTIME;
1315		2145
1316	$map->load_header	2146	$map->load_header
1317	or return;	2147	or return;
1318		2148
1319	if ($map->should_reset) {	2149	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2150	# doing this can freeze the server in a sync job, obviously
		2151	#$cf::WAIT_FOR_TICK->wait;
		2152	undef $guard2;
		2153	undef $guard1;
1320	$map->reset;	2154	$map->reset;
1321	undef $guard;
1322	$map = find $path	2155	return find $path;
1323	or return;
1324	}	2156	}
1325		2157
1326	$cf::MAP{$path} = $map	2158	$cf::MAP{$path} = $map
1327	}	2159	}
1328	}	2160	}
		2161
		2162	sub pre_load { }
		2163	#sub post_load { } # XS
1329		2164
1330	sub load {	2165	sub load {
1331	my ($self) = @_;	2166	my ($self) = @_;
1332		2167
		2168	local $self->{deny_reset} = 1; # loading can take a long time
		2169
1333	my $path = $self->{path};	2170	my $path = $self->{path};
		2171
		2172	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2173	my $guard = cf::lock_acquire "map_data:$path";
1335		2174
		2175	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2176	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2177
1338	$self->in_memory (cf::MAP_LOADING);
1339
1340	$self->alloc;	2178	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2179
		2180	$self->pre_load;
		2181	cf::cede_to_tick;
		2182
		2183	if (exists $self->{load_path}) {
		2184	my $f = new_from_file cf::object::thawer $self->{load_path};
		2185	$f->skip_block;
		2186	$self->_load_objects ($f)
1342	or return;	2187	or return;
1343		2188
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2189	$self->post_load_original
1345	if delete $self->{load_original};	2190	if delete $self->{load_original};
1346		2191
1347	if (my $uniq = $self->uniq_path) {	2192	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2193	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2194	unless (aio_stat $uniq) {
		2195	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2196	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2197	$self->_load_objects ($f);
		2198	$f->resolve_delayed_derefs;
		2199	}
		2200	}
1352	}	2201	}
1353	}
1354		2202
1355	Coro::cede;	2203	$f->resolve_delayed_derefs;
		2204	} else {
		2205	$self->post_load_original
		2206	if delete $self->{load_original};
		2207	}
1356		2208
		2209	$self->in_memory (cf::MAP_INACTIVE);
		2210
		2211	cf::cede_to_tick;
1357	# now do the right thing for maps	2212	# now do the right thing for maps
1358	$self->link_multipart_objects;	2213	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2214	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2215	unless $self->difficulty;
1368	Coro::cede;	2216	cf::cede_to_tick;
1369	$self->activate;	2217
		2218	unless ($self->{deny_activate}) {
		2219	$self->decay_objects;
		2220	$self->fix_auto_apply;
		2221	$self->update_buttons;
		2222	cf::cede_to_tick;
		2223	#$self->activate; # no longer activate maps automatically
		2224	}
		2225
		2226	$self->{last_save} = $cf::RUNTIME;
		2227	$self->last_access ($cf::RUNTIME);
		2228	}
		2229
		2230	$self->post_load;
		2231
1370	}	2232	1
1371
1372	$self->in_memory (cf::MAP_IN_MEMORY);
1373	}	2233	}
1374		2234
		2235	# customize the map for a given player, i.e.
		2236	# return the _real_ map. used by e.g. per-player
		2237	# maps to change the path to ~playername/mappath
1375	sub customise_for {	2238	sub customise_for {
1376	my ($self, $ob) = @_;	2239	my ($self, $ob) = @_;
1377		2240
1378	return find "~" . $ob->name . "/" . $self->{path}	2241	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2242	if $self->per_player;
1380		2243
		2244	# return find "?party/" . $ob->name . "/" . $self->{path}
		2245	# if $self->per_party;
		2246
1381	$self	2247	$self
1382	}	2248	}
1383		2249
1384	# find and load all maps in the 3x3 area around a map	2250	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2251	sub load_neighbours {
1386	my ($map) = @_;	2252	my ($map) = @_;
1387		2253
1388	my @diag; # diagonal neighbours	2254	my @neigh; # diagonal neighbours
1389		2255
1390	for (0 .. 3) {	2256	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2257	my $neigh = $map->tile_path ($_)
1392	or next;	2258	or next;
1393	$neigh = find $neigh, $map	2259	$neigh = find $neigh, $map
1394	or next;	2260	or next;
1395	$neigh->load;	2261	$neigh->load;
1396		2262
		2263	# now find the diagonal neighbours
		2264	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2265	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2266	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2267	}
1400		2268
1401	for (@diag) {	2269	for (grep defined $_->[0], @neigh) {
		2270	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2271	my $neigh = find $path, $origin
1403	or next;	2272	or next;
1404	$neigh->load;	2273	$neigh->load;
1405	}	2274	}
1406	}	2275	}
1407		2276
1408	sub find_sync {	2277	sub find_sync {
1409	my ($path, $origin) = @_;	2278	my ($path, $origin) = @_;
1410		2279
1411	cf::sync_job { find $path, $origin }	2280	# it's a bug to call this from the main context
		2281	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2282	if $Coro::current == $Coro::main;
		2283
		2284	find $path, $origin
1412	}	2285	}
1413		2286
1414	sub do_load_sync {	2287	sub do_load_sync {
1415	my ($map) = @_;	2288	my ($map) = @_;
1416		2289
1417	cf::sync_job { $map->load };	2290	# it's a bug to call this from the main context
		2291	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2292	if $Coro::current == $Coro::main;
		2293
		2294	$map->load;
1418	}	2295	}
1419		2296
1420	our %MAP_PREFETCH;	2297	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2298	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2299
1434	sub find_async {	2300	sub find_async {
1435	my ($path, $origin) = @_;	2301	my ($path, $origin, $load) = @_;
1436		2302
1437	$path = normalise $path, $origin && $origin->{path};	2303	$path = normalise $path, $origin;
1438		2304
1439	if (my $map = $cf::MAP{$path}) {	2305	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2306	return $map if !$load || $map->linkable;
		2307	}
		2308
		2309	$MAP_PREFETCH{$path} |= $load;
		2310
		2311	$MAP_PREFETCHER ||= cf::async {
		2312	$Coro::current->{desc} = "map prefetcher";
		2313
		2314	while (%MAP_PREFETCH) {
		2315	while (my ($k, $v) = each %MAP_PREFETCH) {
		2316	if (my $map = find $k) {
		2317	$map->load if $v;
		2318	}
		2319
		2320	delete $MAP_PREFETCH{$k};
		2321	}
		2322	}
		2323	undef $MAP_PREFETCHER;
1441	}	2324	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2325	$MAP_PREFETCHER->prio (6);
1445		2326
1446	()	2327	()
1447	}	2328	}
1448		2329
		2330	# common code, used by both ->save and ->swapout
1449	sub save {	2331	sub _save {
1450	my ($self) = @_;	2332	my ($self) = @_;
1451
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;
1453		2333
1454	$self->{last_save} = $cf::RUNTIME;	2334	$self->{last_save} = $cf::RUNTIME;
1455		2335
1456	return unless $self->dirty;	2336	return unless $self->dirty;
1457		2337
…		…
1463	return if $self->{deny_save};	2343	return if $self->{deny_save};
1464		2344
1465	local $self->{last_access} = $self->last_access;#d#	2345	local $self->{last_access} = $self->last_access;#d#
1466		2346
1467	cf::async {	2347	cf::async {
		2348	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2349	$_->contr->save for $self->players;
1469	};	2350	};
		2351
		2352	cf::get_slot 0.02;
1470		2353
1471	if ($uniq) {	2354	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2355	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2356	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2357	} else {
1475	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2358	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1476	}	2359	}
1477	}	2360	}
1478		2361
		2362	sub save {
		2363	my ($self) = @_;
		2364
		2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2366
		2367	$self->_save;
		2368	}
		2369
1479	sub swap_out {	2370	sub swap_out {
1480	my ($self) = @_;	2371	my ($self) = @_;
1481		2372
1482	# save first because save cedes
1483	$self->save;
1484
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2374
		2375	return if !$self->linkable;
		2376	return if $self->{deny_save};
1487	return if $self->players;	2377	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;
1489	return if $self->{deny_save};
1490		2378
		2379	# first deactivate the map and "unlink" it from the core
		2380	$self->deactivate;
		2381	$_->clear_links_to ($self) for values %cf::MAP;
		2382	$self->in_memory (cf::MAP_SWAPPED);
		2383
		2384	# then atomically save
		2385	$self->_save;
		2386
		2387	# then free the map
1491	$self->clear;	2388	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2389	}
1494		2390
1495	sub reset_at {	2391	sub reset_at {
1496	my ($self) = @_;	2392	my ($self) = @_;
1497		2393
1498	# TODO: safety, remove and allow resettable per-player maps	2394	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2395	return 1e99 if $self->{deny_reset};
1501		2396
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2397	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2398	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2399
…		…
1509	my ($self) = @_;	2404	my ($self) = @_;
1510		2405
1511	$self->reset_at <= $cf::RUNTIME	2406	$self->reset_at <= $cf::RUNTIME
1512	}	2407	}
1513		2408
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2409	sub reset {
1529	my ($self) = @_;	2410	my ($self) = @_;
1530		2411
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2412	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2413
1533	return if $self->players;	2414	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2415
1536	warn "resetting map ", $self->path;#d#	2416	cf::trace "resetting map ", $self->path, "\n";
		2417
		2418	$self->in_memory (cf::MAP_SWAPPED);
		2419
		2420	# need to save uniques path
		2421	unless ($self->{deny_save}) {
		2422	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2423
		2424	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2425	if $uniq;
		2426	}
1537		2427
1538	delete $cf::MAP{$self->path};	2428	delete $cf::MAP{$self->path};
1539		2429
1540	$self->in_memory (cf::MAP_SWAPPED);	2430	$self->deactivate;
		2431	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2432	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2433
1545	$self->unlink_save;	2434	$self->unlink_save;
1546	$self->destroy;	2435	$self->destroy;
1547	}	2436	}
1548		2437
1549	my $nuke_counter = "aaaa";	2438	my $nuke_counter = "aaaa";
1550		2439
1551	sub nuke {	2440	sub nuke {
1552	my ($self) = @_;	2441	my ($self) = @_;
1553		2442
		2443	{
		2444	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2445
		2446	delete $cf::MAP{$self->path};
		2447
		2448	$self->unlink_save;
		2449
		2450	bless $self, "cf::map::wrap";
		2451	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2452	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2453	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2454	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2455
		2456	$cf::MAP{$self->path} = $self;
		2457	}
		2458
1557	$self->reset; # polite request, might not happen	2459	$self->reset; # polite request, might not happen
		2460	}
		2461
		2462	=item $maps = cf::map::tmp_maps
		2463
		2464	Returns an arrayref with all map paths of currently instantiated and saved
		2465	maps. May block.
		2466
		2467	=cut
		2468
		2469	sub tmp_maps() {
		2470	[
		2471	map {
		2472	utf8::decode $_;
		2473	/\.map$/
		2474	? normalise $_
		2475	: ()
		2476	} @{ aio_readdir $TMPDIR or [] }
		2477	]
		2478	}
		2479
		2480	=item $maps = cf::map::random_maps
		2481
		2482	Returns an arrayref with all map paths of currently instantiated and saved
		2483	random maps. May block.
		2484
		2485	=cut
		2486
		2487	sub random_maps() {
		2488	[
		2489	map {
		2490	utf8::decode $_;
		2491	/\.map$/
		2492	? normalise "?random/$_"
		2493	: ()
		2494	} @{ aio_readdir $RANDOMDIR or [] }
		2495	]
1558	}	2496	}
1559		2497
1560	=item cf::map::unique_maps	2498	=item cf::map::unique_maps
1561		2499
1562	Returns an arrayref of paths of all shared maps that have	2500	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2501	instantiated unique items. May block.
1564		2502
1565	=cut	2503	=cut
1566		2504
1567	sub unique_maps() {	2505	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2506	[
1569	or return;	2507	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2508	utf8::decode $_;
1575	next if /\.pst$/;	2509	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2510	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2511	? ()
		2512	: normalise $_
		2513	} @{ aio_readdir $UNIQUEDIR or [] }
		2514	]
		2515	}
1577		2516
		2517	=item cf::map::static_maps
		2518
		2519	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2520	file in the shared directory excluding F</styles> and F</editor>). May
		2521	block.
		2522
		2523	=cut
		2524
		2525	sub static_maps() {
		2526	my @dirs = "";
		2527	my @maps;
		2528
		2529	while (@dirs) {
		2530	my $dir = shift @dirs;
		2531
		2532	next if $dir eq "/styles" || $dir eq "/editor";
		2533
		2534	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2535	or return;
		2536
		2537	for (@$files) {
1578	s/\.map$//;	2538	s/\.map$// or next;
1579	push @paths, $_;	2539	utf8::decode $_;
1580	}	2540	push @maps, "$dir/$_";
		2541	}
1581		2542
1582	\@paths	2543	push @dirs, map "$dir/$_", @$dirs;
1583	}	2544	}
1584		2545
1585	package cf;	2546	\@maps
		2547	}
1586		2548
1587	=back	2549	=back
1588		2550
1589	=head3 cf::object	2551	=head3 cf::object
1590		2552
…		…
1594		2556
1595	=over 4	2557	=over 4
1596		2558
1597	=item $ob->inv_recursive	2559	=item $ob->inv_recursive
1598		2560
1599	Returns the inventory of the object _and_ their inventories, recursively.	2561	Returns the inventory of the object I<and> their inventories, recursively,
		2562	but I<not> the object itself.
1600		2563
1601	=cut	2564	=cut
1602		2565
1603	sub inv_recursive_;	2566	sub inv_recursive_;
1604	sub inv_recursive_ {	2567	sub inv_recursive_ {
…		…
1607		2570
1608	sub inv_recursive {	2571	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2572	inv_recursive_ inv $_[0]
1610	}	2573	}
1611		2574
		2575	=item $ref = $ob->ref
		2576
		2577	Creates and returns a persistent reference to an object that can be stored as a string.
		2578
		2579	=item $ob = cf::object::deref ($refstring)
		2580
		2581	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2582	even if the object actually exists. May block.
		2583
		2584	=cut
		2585
		2586	sub deref {
		2587	my ($ref) = @_;
		2588
		2589	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2590	my ($uuid, $name) = ($1, $2);
		2591	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2592	or return;
		2593	$pl->ob->uuid eq $uuid
		2594	or return;
		2595
		2596	$pl->ob
		2597	} else {
		2598	warn "$ref: cannot resolve object reference\n";
		2599	undef
		2600	}
		2601	}
		2602
1612	package cf;	2603	package cf;
1613		2604
1614	=back	2605	=back
1615		2606
1616	=head3 cf::object::player	2607	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2613	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2614	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2615	dialogue with the given NPC character.
1625		2616
1626	=cut	2617	=cut
		2618
		2619	our $SAY_CHANNEL = {
		2620	id => "say",
		2621	title => "Map",
		2622	reply => "say ",
		2623	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2624	};
		2625
		2626	our $CHAT_CHANNEL = {
		2627	id => "chat",
		2628	title => "Chat",
		2629	reply => "chat ",
		2630	tooltip => "Player chat and shouts, global to the server.",
		2631	};
1627		2632
1628	# rough implementation of a future "reply" method that works	2633	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2634	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2635	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2636	sub cf::object::player::reply($$$;$) {
…		…
1633		2638
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2639	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2640
1636	if ($self->{record_replies}) {	2641	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2642	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2643
1638	} else {	2644	} else {
		2645	my $pl = $self->contr;
		2646
		2647	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2648	my $dialog = $pl->{npc_dialog};
		2649	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2650
		2651	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2652	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2653	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2654	}
1641	}	2655	}
		2656	}
		2657
		2658	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2659
		2660	=cut
		2661
		2662	sub cf::object::send_msg {
		2663	my $pl = shift->contr
		2664	or return;
		2665	$pl->send_msg (@_);
1642	}	2666	}
1643		2667
1644	=item $player_object->may ("access")	2668	=item $player_object->may ("access")
1645		2669
1646	Returns wether the given player is authorized to access resource "access"	2670	Returns wether the given player is authorized to access resource "access"
…		…
1659		2683
1660	=item $player_object->enter_link	2684	=item $player_object->enter_link
1661		2685
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2686	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2687
1664	The player should be reasonably safe there for short amounts of time. You	2688	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.	2689	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2690	though, as the player cannot control the character while it is on the link
		2691	map.
1666		2692
1667	Will never block.	2693	Will never block.
1668		2694
1669	=item $player_object->leave_link ($map, $x, $y)	2695	=item $player_object->leave_link ($map, $x, $y)
1670		2696
…		…
1678	=cut	2704	=cut
1679		2705
1680	sub link_map {	2706	sub link_map {
1681	unless ($LINK_MAP) {	2707	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2708	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2709	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2710	$LINK_MAP->load;
1685	}	2711	}
1686		2712
1687	$LINK_MAP	2713	$LINK_MAP
1688	}	2714	}
…		…
1690	sub cf::object::player::enter_link {	2716	sub cf::object::player::enter_link {
1691	my ($self) = @_;	2717	my ($self) = @_;
1692		2718
1693	$self->deactivate_recursive;	2719	$self->deactivate_recursive;
1694		2720
		2721	++$self->{_link_recursion};
		2722
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2723	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2724
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2725	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2726	if $self->map && $self->map->{path} ne "{link}";
1699		2727
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2728	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1701	}	2729	}
1702		2730
1703	sub cf::object::player::leave_link {	2731	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2732	my ($self, $map, $x, $y) = @_;
		2733
		2734	return unless $self->contr->active;
1705		2735
1706	my $link_pos = delete $self->{_link_pos};	2736	my $link_pos = delete $self->{_link_pos};
1707		2737
1708	unless ($map) {	2738	unless ($map) {
1709	# restore original map position	2739	# restore original map position
…		…
1720	($x, $y) = (-1, -1)	2750	($x, $y) = (-1, -1)
1721	unless (defined $x) && (defined $y);	2751	unless (defined $x) && (defined $y);
1722		2752
1723	# use -1 or undef as default coordinates, not 0, 0	2753	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2754	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2755	if $x <= 0 && $y <= 0;
1726		2756
1727	$map->load;	2757	$map->load;
1728	$map->load_diag;	2758	$map->load_neighbours;
1729		2759
1730	return unless $self->contr->active;	2760	return unless $self->contr->active;
		2761
		2762	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2763	if ($self->enter_map ($map, $x, $y)) {
		2764	# entering was successful
		2765	delete $self->{_link_recursion};
		2766	# only activate afterwards, to support waiting in hooks
1731	$self->activate_recursive;	2767	$self->activate_recursive;
1732	$self->enter_map ($map, $x, $y);
1733	}
1734
1735	cf::player->attach (
1736	on_logout => sub {
1737	my ($pl) = @_;
1738
1739	# abort map switching before logout
1740	if ($pl->ob->{_link_pos}) {
1741	cf::sync_job {
1742	$pl->ob->leave_link
1743	};
1744	}
1745	},	2768	}
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2769
1749	# try to abort aborted map switching on player login :)	2770	}
1750	# should happen only on crashes
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2771
1767	=item $player_object->goto ($path, $x, $y)	2772	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1768		2773
		2774	Moves the player to the given map-path and coordinates by first freezing
		2775	her, loading and preparing them map, calling the provided $check callback
		2776	that has to return the map if sucecssful, and then unfreezes the player on
		2777	the new (success) or old (failed) map position. In either case, $done will
		2778	be called at the end of this process.
		2779
		2780	Note that $check will be called with a potentially non-loaded map, so if
		2781	it needs a loaded map it has to call C<< ->load >>.
		2782
1769	=cut	2783	=cut
		2784
		2785	our $GOTOGEN;
1770		2786
1771	sub cf::object::player::goto {	2787	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2788	my ($self, $path, $x, $y, $check, $done) = @_;
		2789
		2790	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2791	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2792	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2793	($path, $x, $y) = @$EMERGENCY_POSITION;
		2794	}
		2795
		2796	# do generation counting so two concurrent goto's will be executed in-order
		2797	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2798
1774	$self->enter_link;	2799	$self->enter_link;
1775		2800
1776	(async {	2801	(async {
1777	my $map = cf::map::find $path;	2802	$Coro::current->{desc} = "player::goto $path $x $y";
		2803
		2804	# *tag paths override both path and x|y
		2805	if ($path =~ /^\*(.*)$/) {
		2806	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2807	my $ob = $obs[rand @obs];
		2808
		2809	# see if we actually can go there
		2810	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2811	$ob = $obs[rand @obs];
		2812	} else {
		2813	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2814	}
		2815	# else put us there anyways for now #d#
		2816
		2817	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2818	} else {
		2819	($path, $x, $y) = (undef, undef, undef);
		2820	}
		2821	}
		2822
		2823	my $map = eval {
		2824	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2825
		2826	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2827	$map = $map->customise_for ($self);
1779		2828	$map = $check->($map, $x, $y, $self) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2829	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2830	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	}
1784		2832
		2833	$map
		2834	};
		2835
		2836	if ($@) {
		2837	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2838	LOG llevError | logBacktrace, Carp::longmess $@;
		2839	}
		2840
		2841	if ($gen == $self->{_goto_generation}) {
		2842	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2843	$self->leave_link ($map, $x, $y);
		2844	}
		2845
		2846	$done->($self) if $done;
1786	})->prio (1);	2847	})->prio (1);
1787	}	2848	}
1788		2849
1789	=item $player_object->enter_exit ($exit_object)	2850	=item $player_object->enter_exit ($exit_object)
1790		2851
…		…
1792		2853
1793	sub parse_random_map_params {	2854	sub parse_random_map_params {
1794	my ($spec) = @_;	2855	my ($spec) = @_;
1795		2856
1796	my $rmp = { # defaults	2857	my $rmp = { # defaults
1797	xsize => 10,	2858	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2859	ysize => (cf::rndm 15, 40),
		2860	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2861	#layout => string,
1799	};	2862	};
1800		2863
1801	for (split /\n/, $spec) {	2864	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2865	my ($k, $v) = split /\s+/, $_, 2;
1803		2866
…		…
1815	# that depends on the exit object	2878	# that depends on the exit object
1816		2879
1817	my $rmp = parse_random_map_params $exit->msg;	2880	my $rmp = parse_random_map_params $exit->msg;
1818		2881
1819	if ($exit->map) {	2882	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2883	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2884	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2885	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2886	$rmp->{origin_y} = $exit->y;
		2887
		2888	$exit->map->touch;
1824	}	2889	}
1825		2890
1826	$rmp->{random_seed} ||= $exit->random_seed;	2891	$rmp->{random_seed} ||= $exit->random_seed;
1827		2892
1828	my $data = cf::to_json $rmp;	2893	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2894	my $md5 = Digest::MD5::md5_hex $data;
		2895	my $meta = "$RANDOMDIR/$md5.meta";
1830		2896
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2897	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2898	aio_write $fh, 0, (length $data), $data, 0;
		2899	undef $fh;
		2900	aio_rename "$meta~", $meta;
1833		2901
		2902	my $slaying = "?random/$md5";
		2903
		2904	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2905	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2906	$exit->msg (undef);
		2907	}
1836	}	2908	}
1837	}	2909	}
1838		2910
1839	sub cf::object::player::enter_exit {	2911	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2912	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2914	return unless $self->type == cf::PLAYER;
1843		2915
1844	$self->enter_link;	2916	$self->enter_link;
1845		2917
1846	(async {	2918	(async {
1847	$self->deactivate_recursive; # just to be sure	2919	$Coro::current->{desc} = "enter_exit";
		2920
1848	unless (eval {	2921	unless (eval {
		2922	$self->deactivate_recursive; # just to be sure
		2923
		2924	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2925	my $x = $exit->stats->hp;
		2926	my $y = $exit->stats->sp;
		2927
		2928	# special map handling
		2929	my $slaying = $exit->slaying;
		2930
		2931	# special map handling
		2932	if ($slaying eq "/!") {
		2933	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2934
1849	prepare_random_map $exit	2935	prepare_random_map $exit
		2936	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2937
1850	if $exit->slaying eq "/!";	2938	$map = $exit->slaying;
1851		2939
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2940	} elsif ($slaying eq '!up') {
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2941	$map = $exit->map->tile_path (cf::TILE_UP);
		2942	$x = $exit->x;
		2943	$y = $exit->y;
1854		2944
		2945	} elsif ($slaying eq '!down') {
		2946	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2947	$x = $exit->x;
		2948	$y = $exit->y;
		2949	}
		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
1855	1;	2957	1
1856	}) {	2958	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2959	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "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. "
1859	. "Please report this to the dungeon master!",	2961	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2962	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2963
1862	warn "ERROR in enter_exit: $@";	2964	error "ERROR in enter_exit: $@";
1863	$self->leave_link;	2965	$self->leave_link;
1864	}	2966	}
1865	})->prio (1);	2967	})->prio (1);
1866	}	2968	}
1867		2969
…		…
1878		2980
1879	sub cf::client::send_drawinfo {	2981	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2982	my ($self, $text, $flags) = @_;
1881		2983
1882	utf8::encode $text;	2984	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2985	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2986	}
1885		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	}
1886		3209
1887	=item $success = $client->query ($flags, "text", \&cb)	3210	=item $success = $client->query ($flags, "text", \&cb)
1888		3211
1889	Queues a query to the client, calling the given callback with	3212	Queues a query to the client, calling the given callback with
1890	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>,
1891	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>.
1892		3215
1893	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
1894	reliable at some point in the future.	3217	become reliable at some point in the future.
1895		3218
1896	=cut	3219	=cut
1897		3220
1898	sub cf::client::query {	3221	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	3222	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	3230	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3231	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		3232
1910	$self->send_packet ($self->{query_queue}[0][0])	3233	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	3234	if @{ $self->{query_queue} } == 1;
		3235
		3236	1
1912	}	3237	}
1913		3238
1914	cf::client->attach (	3239	cf::client->attach (
		3240	on_connect => sub {
		3241	my ($ns) = @_;
		3242
		3243	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3244	},
1915	on_reply => sub {	3245	on_reply => sub {
1916	my ($ns, $msg) = @_;	3246	my ($ns, $msg) = @_;
1917		3247
1918	# this weird shuffling is so that direct followup queries	3248	# this weird shuffling is so that direct followup queries
1919	# get handled first	3249	# get handled first
1920	my $queue = delete $ns->{query_queue}	3250	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	3251	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		3252
1923	(shift @$queue)->[1]->($msg);	3253	(shift @$queue)->[1]->($msg);
		3254	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		3255
1925	push @{ $ns->{query_queue} }, @$queue;	3256	push @{ $ns->{query_queue} }, @$queue;
1926		3257
1927	if (@{ $ns->{query_queue} } == @$queue) {	3258	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	3259	if (@$queue) {
…		…
1930	} else {	3261	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3262	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	3263	}
1933	}	3264	}
1934	},	3265	},
		3266	on_exticmd => sub {
		3267	my ($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	},
1935	);	3292	);
1936		3293
1937	=item $client->async (\&cb)	3294	=item $client->async (\&cb)
1938		3295
1939	Create a new coroutine, running the specified callback. The coroutine will	3296	Create a new coroutine, running the specified callback. The coroutine will
…		…
1955		3312
1956	$coro	3313	$coro
1957	}	3314	}
1958		3315
1959	cf::client->attach (	3316	cf::client->attach (
1960	on_destroy => sub {	3317	on_client_destroy => sub {
1961	my ($ns) = @_;	3318	my ($ns) = @_;
1962		3319
1963	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3320	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1964	},	3321	},
1965	);	3322	);
…		…
1980	our $safe = new Safe "safe";	3337	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3338	our $safe_hole = new Safe::Hole;
1982		3339
1983	$SIG{FPE} = 'IGNORE';	3340	$SIG{FPE} = 'IGNORE';
1984		3341
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3342	$safe->permit_only (Opcode::opset qw(
		3343	:base_core :base_mem :base_orig :base_math :base_loop
		3344	grepstart grepwhile mapstart mapwhile
		3345	sort time
		3346	));
1986		3347
1987	# here we export the classes and methods available to script code	3348	# here we export the classes and methods available to script code
1988		3349
1989	=pod	3350	=pod
1990		3351
1991	The following fucntions and emthods are available within a safe environment:	3352	The following functions and methods are available within a safe environment:
1992		3353
1993	cf::object contr pay_amount pay_player map	3354	cf::object
		3355	contr pay_amount pay_player map x y force_find force_add destroy
		3356	insert remove name archname title slaying race decrease split
		3357	value
		3358
1994	cf::object::player player	3359	cf::object::player
1995	cf::player peaceful	3360	player
1996	cf::map trigger	3361
		3362	cf::player
		3363	peaceful
		3364
		3365	cf::map
		3366	trigger
1997		3367
1998	=cut	3368	=cut
1999		3369
2000	for (	3370	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3371	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3372	insert remove inv nrof name archname title slaying race
		3373	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3374	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3375	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3376	["cf::map" => qw(trigger)],
2005	) {	3377	) {
2006	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3378	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3379	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2009	for @funs;	3380	for @funs;
2010	}	3381	}
2011		3382
…		…
2026		3397
2027	my $qcode = $code;	3398	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3399	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3400	$qcode =~ s/\n/\\n/g;
2030		3401
		3402	%vars = (_dummy => 0) unless %vars;
		3403
		3404	my @res;
2031	local $_;	3405	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;
2033		3406
2034	my $eval =	3407	my $eval =
2035	"do {\n"	3408	"do {\n"
2036	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3409	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2037	. "#line 0 \"{$qcode}\"\n"	3410	. "#line 0 \"{$qcode}\"\n"
2038	. $code	3411	. $code
2039	. "\n}"	3412	. "\n}"
2040	;	3413	;
2041		3414
		3415	if ($CFG{safe_eval}) {
2042	sub_generation_inc;	3416	sub_generation_inc;
		3417	local @safe::cf::_safe_eval_args = values %vars;
2043	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3418	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2044	sub_generation_inc;	3419	sub_generation_inc;
		3420	} else {
		3421	local @cf::_safe_eval_args = values %vars;
		3422	@res = wantarray ? eval eval : scalar eval $eval;
		3423	}
2045		3424
2046	if ($@) {	3425	if ($@) {
2047	warn "$@";	3426	warn "$@",
2048	warn "while executing safe code '$code'\n";	3427	"while executing safe code '$code'\n",
2049	warn "with arguments " . (join " ", %vars) . "\n";	3428	"with arguments " . (join " ", %vars) . "\n";
2050	}	3429	}
2051		3430
2052	wantarray ? @res : $res[0]	3431	wantarray ? @res : $res[0]
2053	}	3432	}
2054		3433
…		…
2068	=cut	3447	=cut
2069		3448
2070	sub register_script_function {	3449	sub register_script_function {
2071	my ($fun, $cb) = @_;	3450	my ($fun, $cb) = @_;
2072		3451
2073	no strict 'refs';	3452	$fun = "safe::$fun" if $CFG{safe_eval};
2074	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3453	*$fun = $safe_hole->wrap ($cb);
2075	}	3454	}
2076		3455
2077	=back	3456	=back
2078		3457
2079	=cut	3458	=cut
2080		3459
2081	#############################################################################	3460	#############################################################################
		3461	# the server's init and main functions
2082		3462
2083	=head2 EXTENSION DATABASE SUPPORT	3463	sub load_facedata($) {
		3464	my ($path) = @_;
2084		3465
2085	Crossfire maintains a very simple database for extension use. It can	3466	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3467	# for this (global event?)
2087	excludes objects.	3468	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3469
2089	The parameter C<$family> should best start with the name of the extension	3470	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3471
2092	=over 4	3472	trace "loading facedata from $path\n";
2093		3473
2094	=item $hashref = cf::db_get $family	3474	my $facedata = decode_storable load_file $path;
2095		3475
2096	Return a hashref for use by the extension C<$family>, which can be	3476	$facedata->{version} == 2
2097	modified. After modifications, you have to call C<cf::db_dirty> or	3477	or cf::cleanup "$path: version mismatch, cannot proceed.";
2098	C<cf::db_sync>.
2099		3478
2100	=item $value = cf::db_get $family => $key	3479	# patch in the exptable
2101		3480	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2102	Returns a single value from the database	3481	$facedata->{resource}{"res/exp_table"} = {
2103		3482	type => FT_RSRC,
2104	=item cf::db_put $family => $hashref	3483	data => $exp_table,
2105		3484	hash => (Digest::MD5::md5 $exp_table),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3485	};
		3486	cf::cede_to_tick;
2155		3487
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3488	{
		3489	my $faces = $facedata->{faceinfo};
2160		3490
2161	sub db_get($;$) {	3491	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3493
2167	sub db_put($$;$) {	3494	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3495	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3496	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2170	} else {	3497	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2171	$DB->{$_[0]} = $_[1];	3498	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2172	}
2173	db_dirty;
2174	}
2175		3499
2176	cf::global->attach (	3500	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3501	}
2181	);
2182	}
2183		3502
2184	#############################################################################	3503	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3504	next unless $info->{smooth};
2186		3505
2187	sub cfg_load {	3506	my $idx = cf::face::find $face
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3507	or next;
2189	or return;
2190		3508
2191	local $/;	3509	if (my $smooth = cf::face::find $info->{smooth}) {
2192	*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	}
2193		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
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3641	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2195		3642
2196	$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};
2197	$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};
2198		3645
2199	if (exists $CFG{mlockall}) {	3646	if (exists $CFG{mlockall}) {
…		…
2203	};	3650	};
2204	warn $@ if $@;	3651	warn $@ if $@;
2205	}	3652	}
2206	}	3653	}
2207		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
2208	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
2209	# we must not ever block the main coroutine	3693	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3694	local $Coro::idle = sub {
2211	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#
2212	async { Event::one_event };	3696	(async {
		3697	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3698	EV::loop EV::LOOP_ONESHOT;
		3699	})->prio (Coro::PRIO_MAX);
2213	};	3700	};
2214		3701
2215	cfg_load;	3702	evthread_start IO::AIO::poll_fileno;
2216	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
2217	load_extensions;	3725	load_extensions;
2218	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;
2219	}	3745	}
2220		3746
2221	#############################################################################	3747	#############################################################################
2222	# initialisation and cleanup	3748	# initialisation and cleanup
2223		3749
2224	# install some emergency cleanup handlers	3750	# install some emergency cleanup handlers
2225	BEGIN {	3751	BEGIN {
		3752	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3753	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3754	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3755	cf::cleanup "SIG$signal";
2232	},
2233	);	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
2234	}	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 };
2235	}	3846	}
2236		3847
2237	sub emergency_save() {	3848	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3849	my $freeze_guard = cf::freeze_mainloop;
2239		3850
2240	warn "enter emergency perl save\n";	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;
2241		3857
2242	cf::sync_job {	3858	cf::sync_job {
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
2243	# use a peculiar iteration method to avoid tripping on perl	3861	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3862	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3863	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3864	info "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3865	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3866	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3867	$pl->valid or next;
		3868	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3869	$pl->save;
2251	}	3870	}
2252	warn "end emergency player save\n";	3871	info "emergency_perl_save: end player save\n";
2253		3872
2254	warn "begin emergency map save\n";	3873	cf::write_runtime_sync; # external watchdog should not bark
		3874
		3875	info "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3876	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3877	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3878	$map->valid or next;
2258	$map->save;	3879	$map->save;
2259	}	3880	}
2260	warn "end emergency map save\n";	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
2261	};	3911	};
2262		3912
2263	warn "leave emergency perl save\n";	3913	info "emergency_perl_save: leave\n";
2264	}	3914	}
2265		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
2266	sub reload() {	3953	sub do_reload_perl() {
2267	# can/must only be called in main	3954	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3955	unless (in_main) {
2269	warn "can only reload from main coroutine\n";	3956	error "can only reload from main coroutine";
2270	return;	3957	return;
2271	}	3958	}
2272		3959
2273	warn "reloading...";	3960	return if $RELOAD++;
2274		3961
2275	warn "freezing server";	3962	my $t1 = AE::time;
2276	my $guard = freeze_mainloop;	3963
		3964	while ($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 {
2277	cf::emergency_save;	3971	#cf::emergency_save;
2278		3972
2279	warn "sync database to disk";	3973	trace "perl_reload: cancelling all extension coros";
2280	cf::db_sync;
2281	IO::AIO::flush;
2282
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved
2285
2286	warn "cancel all watchers";
2287	for (Event::all_watchers) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;	3974	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();	3975	%EXT_CORO = ();
2294		3976
2295	warn "remove commands";	3977	trace "perl_reload: removing commands";
2296	%COMMAND = ();	3978	%COMMAND = ();
2297		3979
2298	warn "remove ext commands";	3980	trace "perl_reload: removing ext/exti commands";
2299	%EXTCMD = ();	3981	%EXTCMD = ();
		3982	%EXTICMD = ();
2300		3983
2301	warn "unload/nuke all extensions";	3984	trace "perl_reload: unloading/nuking all extensions";
2302	for my $pkg (@EXTS) {	3985	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";	3986	trace "... unloading $pkg";
2304		3987
2305	if (my $cb = $pkg->can ("unload")) {	3988	if (my $cb = $pkg->can ("unload")) {
2306	eval {	3989	eval {
2307	$cb->($pkg);	3990	$cb->($pkg);
2308	1	3991	1
2309	} or warn "$pkg unloaded, but with errors: $@";	3992	} or error "$pkg unloaded, but with errors: $@";
		3993	}
		3994
		3995	trace "... clearing $pkg";
		3996	clear_package $pkg;
2310	}	3997	}
2311		3998
2312	warn "... nuking $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315
2316	warn "unload all perl modules loaded from $LIBDIR";	3999	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {	4000	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4001	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319		4002
2320	warn "removing <$k>";	4003	trace "... unloading $k";
2321	delete $INC{$k};	4004	delete $INC{$k};
2322		4005
2323	$k =~ s/\.pm$//;	4006	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;	4007	$k =~ s/\//::/g;
2325		4008
2326	if (my $cb = $k->can ("unload_module")) {	4009	if (my $cb = $k->can ("unload_module")) {
2327	$cb->();	4010	$cb->();
		4011	}
		4012
		4013	clear_package $k;
2328	}	4014	}
2329		4015
2330	Symbol::delete_package $k;
2331	}
2332
2333	warn "get rid of safe::, as good as possible";	4016	trace "perl_reload: getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	4017	clear_package "safe::$_"
2335	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);
2336		4019
2337	warn "unload cf.pm \"a bit\"";	4020	trace "perl_reload: unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	4021	delete $INC{"cf.pm"};
		4022	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		4023
2340	# don't, removes xs symbols, too,	4024	# don't, removes xs symbols, too,
2341	# and global variables created in xs	4025	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	4026	#clear_package __PACKAGE__;
2343		4027
2344	warn "reloading cf.pm";	4028	info "perl_reload: unload completed, starting to reload now";
		4029
		4030	trace "perl_reload: reloading cf.pm";
2345	require cf;	4031	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4032	cf::_connect_to_perl_1;
2347		4033
2348	warn "load config and database again";	4034	trace "perl_reload: loading config and database again";
2349	cf::cfg_load;	4035	cf::reload_config;
2350	cf::db_load;
2351		4036
2352	warn "load extensions";	4037	trace "perl_reload: loading extensions";
2353	cf::load_extensions;	4038	cf::load_extensions;
2354		4039
		4040	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	4041	trace "perl_reload: reattaching attachments to objects/players";
2356	_global_reattach;	4042	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	4043	trace "perl_reload: reattaching attachments to maps";
2358	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 $RELOAD_WATCHER;
		4078	};
2359	};	4079	};
2360		4080	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		4081
2370	register_command "reload" => sub {	4082	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	4083	my ($who, $arg) = @_;
2372		4084
2373	if ($who->flag (FLAG_WIZ)) {	4085	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	4086	$who->message ("reloading server.");
		4087	async {
		4088	$Coro::current->{desc} = "perl_reload";
		4089	reload_perl;
		4090	};
2377	}	4091	}
2378	};	4092	};
2379		4093
2380	unshift @INC, $LIBDIR;	4094	#############################################################################
2381		4095
2382	$TICK_WATCHER = Event->timer (	4096	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		4097
		4098	our @WAIT_FOR_TICK;
		4099	our @WAIT_FOR_TICK_BEGIN;
		4100
		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
2390	cf::server_tick; # one server iteration	4124	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		4125
2394	$WAIT_FOR_TICK->broadcast;	4126	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2396		4127
2397	# if we are delayed by four ticks or more, skip them all	4128	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4129	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2399		4130	Coro::async_pool {
2400	$TICK_WATCHER->at ($NEXT_TICK);	4131	$Coro::current->{desc} = "runtime saver";
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	4132	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	4133	or error "ERROR: unable to write runtime file: $!";
2423	})->();	4134	};
2424	},	4135	}
2425	);	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;
2426		4256
2427	END { cf::emergency_save }	4257	END { cf::emergency_save }
2428		4258
2429	1	4259	1
2430		4260

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