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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.568 by root, Tue May 3 17:12:14 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
45	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %MAP; # all maps	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	141	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	142
		143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
56		155
57	binmode STDOUT;	156	binmode STDOUT;
58	binmode STDERR;	157	binmode STDERR;
59		158
60	# read virtual server time, if available	159	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
65	}	164	}
66		165
67	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		167
73	# a special map that is always available	168	mkdir $_
74	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
75	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::"} };
76		189
77	#############################################################################	190	#############################################################################
78		191
79	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
80		193
…		…
87	=item $cf::RUNTIME	200	=item $cf::RUNTIME
88		201
89	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
90	every server tick.	203	every server tick.
91		204
92	=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
93		208
94	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		213
97	=item $cf::NOW	214	=item $cf::NOW
98		215
99	The time of the last (current) server tick.	216	The time of the last (current) server tick.
100		217
101	=item $cf::TICK	218	=item $cf::TICK
102		219
103	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	232	=item %cf::CFG
106		233
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	235	from wherever your confdir points to.
109		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
110	=back	260	=back
111		261
112	=cut	262	=cut
113		263
114	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
115	*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 {
116	my $msg = join "", @_;	271	my $msg = join "", @_;
117	utf8::encode $msg;
118		272
119	$msg .= "\n"	273	$msg .= "\n"
120	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
121		275
122	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	277
124	}	278	LOG llevWarn, $msg;
		279	};
		280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
125		294
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		302
133	# 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
134	# within the Safe compartment.	304	# within the Safe compartment.
135	for my $pkg (qw(	305	for my $pkg (qw(
136	cf::global cf::attachable	306	cf::global cf::attachable
137	cf::object cf::object::player	307	cf::object cf::object::player
138	cf::client cf::player	308	cf::client cf::player
139	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
140	cf::map cf::party cf::region	311	cf::party cf::region
141	)) {	312	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	314	}
145		315
146	$Event::DIED = sub {	316	$EV::DIED = sub {
147	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
148	};	318	};
149		319
150	my %ext_pkg;	320	#############################################################################
151	my @exts;	321
152	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
153		326
154	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
155		328
156	=over 4	329	=over 4
157		330
158	=cut	331	=item dumpval $ref
159		332
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
161		334
		335	sub dumpval {
		336	eval {
		337	local $SIG{__DIE__};
		338	my $d;
		339	if (1) {
		340	$d = new Data::Dumper([$_[0]], ["*var"]);
		341	$d->Terse(1);
		342	$d->Indent(2);
		343	$d->Quotekeys(0);
		344	$d->Useqq(1);
		345	#$d->Bless(...);
		346	$d->Seen($_[1]) if @_ > 1;
		347	$d = $d->Dump();
		348	}
		349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		350	$d
		351	} || "[unable to dump $_[0]: '$@']";
		352	}
		353
		354	=item $scalar = load_file $path
		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
162	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
163		369
164	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
165		371
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
174		373
175	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
176		375
177	=cut	376	=cut
178		377
179	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
181	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	}
182	}	443	}
183		444
184	=item cf::lock_wait $string	445	=item cf::lock_wait $string
185		446
186	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
187		448
188	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
189		450
190	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
191	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,
192	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
193	returned.	454	returned.
194		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
195	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
196	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
197		461
198	=cut	462	=item $locked = cf::lock_active $string
199		463
200	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;
201		469
202	sub lock_wait($) {	470	sub lock_wait($) {
203	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	472	}
211		473
212	sub lock_acquire($) {	474	sub lock_acquire($) {
213	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
214		477
215	# wait, to be sure we are not locked	478	sub lock_active($) {
216	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	480	}
225		481
226	sub freeze_mainloop {	482	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
228		484
229	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	486	}
		487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
		572	}
		573
		574	=item cf::async { BLOCK }
		575
		576	Currently the same as Coro::async_pool, meaning you cannot use
		577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
		579
		580	=cut
		581
		582	BEGIN { *async = \&Coro::async_pool }
233		583
234	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
235		585
236	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
237	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
238	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.
239		590
240	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
241	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
242	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
243	fast or be very important.	594	fast or be very important.
…		…
245	=cut	596	=cut
246		597
247	sub sync_job(&) {	598	sub sync_job(&) {
248	my ($job) = @_;	599	my ($job) = @_;
249		600
250	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
251	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
253		606
254	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	608
256	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
257		610
258	my $busy = 1;	611	my $busy = 1;
259	my @res;	612	my @res;
260		613
261	(Coro::async_pool {	614	(async {
		615	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	616	@res = eval { $job->() };
263	warn $@ if $@;	617	error $@ if $@;
264	undef $busy;	618	undef $busy;
265	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
266		620
267	while ($busy) {	621	while ($busy) {
268	unless (Coro::cede) {	622	if (Coro::nready) {
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;	623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
271	}	626	}
272	}	627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
273		632
274	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
275	} else {	634	} else {
276	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
277		636
278	$job->()	637	$job->()
279	}	638	}
280	}	639	}
281		640
282	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
283		642
284	Creates (and readies) and returns a new coro. This coro is automcatially	643	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
286		645
287	=cut	646	=cut
288		647
289	sub coro(&) {	648	sub async_ext(&) {
290	my $cb = shift;	649	my $cb = shift;
291		650
292	my $coro = &Coro::async_pool ($cb);	651	my $coro = &Coro::async ($cb);
293		652
294	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
296	});	655	});
297	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
298		657
299	$coro	658	$coro
300	}	659	}
301		660
302	sub write_runtime {	661	=item fork_call { }, @args
303	my $runtime = cf::localdir . "/runtime";
304		662
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
306	or return;	664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
307		667
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		669
312	aio_fsync $fh	670	sub post_fork {
313	and return;	671	reset_signals;
		672	}
314		673
315	close $fh	674	sub fork_call(&@) {
316	or return;	675	my ($cb, @args) = @_;
317		676
318	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
319	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
320		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
321	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 });
322	}	864	}
323		865
324	=back	866	=back
325		867
326	=cut	868	=cut
327		869
328	#############################################################################	870	#############################################################################
329		871
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447
448	#############################################################################
449
450	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
451		873
452	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
453	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")
454	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
455		877
456	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>
457	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
458	crossfire+).	880	Deliantra).
459		881
460	=over 4	882	=over 4
461		883
462	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
463		885
…		…
507	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
508		930
509	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
510	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
511		933
512	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
513	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.
514		936
515	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
516		938
517	=over 4	939	=over 4
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	1000	our @CB_MAP = ();
579		1001
580	my %attachment;	1002	my %attachment;
581		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
582	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
584		1012
585	use sort 'stable';	1013	use sort 'stable';
586		1014
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
621		1049
622	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		1054
627	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
629		1057
630	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
635		1063
636	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
637	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
638		1066
639	} elsif (ref $type) {	1067	} elsif (ref $type) {
640	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
641		1069
642	} else {	1070	} else {
643	shift @arg;	1071	shift @arg;
644	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
645	}	1073	}
646	}	1074	}
647	}	1075	}
648		1076
649	sub _object_attach {	1077	sub _object_attach {
…		…
659	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
660	}	1088	}
661		1089
662	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
663	} else {	1091	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
665	}	1093	}
666		1094
667	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
668	}	1096	}
669		1097
…		…
671	if (ref $_[0]) {	1099	if (ref $_[0]) {
672	_object_attach @_;	1100	_object_attach @_;
673	} else {	1101	} else {
674	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
675	}	1103	}
		1104	_recalc_want;
676	};	1105	};
677		1106
678	# all those should be optimised	1107	# all those should be optimised
679	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
684	reattach ($obj);	1113	reattach ($obj);
685	} else {	1114	} else {
686	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
687	}	1116	}
		1117	_recalc_want;
688	};	1118	};
689		1119
690	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
692		1122
…		…
707	";	1137	";
708	die if $@;	1138	die if $@;
709	}	1139	}
710		1140
711	our $override;	1141	our $override;
712	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?
713		1143
714	sub override {	1144	sub override {
715	$override = 1;	1145	$override = 1;
716	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
717	}	1147	}
718		1148
719	sub do_invoke {	1149	sub do_invoke {
720	my $event = shift;	1150	my $event = shift;
721	my $callbacks = shift;	1151	my $callbacks = shift;
722		1152
723	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
724		1154
725	local $override;	1155	local $override;
726		1156
727	for (@$callbacks) {	1157	for (@$callbacks) {
728	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
729		1159
730	if ($@) {	1160	if ($@) {
731	warn "$@";
732	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
733	override;	1162	override;
734	}	1163	}
735		1164
736	return 1 if $override;	1165	return 1 if $override;
737	}	1166	}
738		1167
739	0	1168	0
740	}	1169	}
741		1170
742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
743		1172
744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
745		1174
746	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
747		1176
748	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
749	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
750	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		1180
752	=back	1181	=back
753		1182
754	=cut	1183	=cut
755		1184
756	#############################################################################	1185	#############################################################################
757	# 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	}
758		1229
759	sub reattach {	1230	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
761	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
762		1236
763	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
764		1238
765	@$registry = ();	1239	@$registry = ();
766		1240
…		…
771	for (@$attach) {	1245	for (@$attach) {
772	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
773	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
774	}	1248	}
775	} else {	1249	} else {
776	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
777	}	1251	}
778	}	1252	}
779	}	1253	}
780		1254
781	cf::attachable->attach (	1255	cf::attachable->attach (
782	prio => -1000000,	1256	prio => -1000000,
783	on_instantiate => sub {	1257	on_instantiate => sub {
784	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
785		1259
786	$data = from_json $data;	1260	$data = decode_json $data;
787		1261
788	for (@$data) {	1262	for (@$data) {
789	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
790		1264
791	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
807	sub object_freezer_save {	1281	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
809		1283
810	sync_job {	1284	sync_job {
811	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
814		1290
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
817	aio_write $fh, 0, (length $$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;
818	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
819	close $fh;	1298	aio_close $fh;
820		1299
821	if (@$objs) {	1300	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
825	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;
826	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
827	close $fh;	1309	aio_close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
829	}	1311	}
830	} else {	1312	} else {
831	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
832	}	1314	}
833		1315
834	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
835	} else {	1320	} else {
836	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
837	}	1322	}
838	} else {	1323	} else {
839	aio_unlink $filename;	1324	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
841	}	1326	}
842	}	1327	};
843	}	1328	}
844		1329
845	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
847		1332
…		…
859	or return;	1344	or return;
860		1345
861	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
863	or return;	1348	or return;
		1349
864	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
865	}	1352	}
866		1353
		1354	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
869	return ($data, $av);	1359	($data, $av)
870	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
871		1367
872	#############################################################################	1368	#############################################################################
873	# command handling &c	1369	# command handling &c
874		1370
875	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1385	}
890		1386
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1388
893	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.
894		1394
895	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
896	called.	1396	called.
897		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
898	=cut	1409	=cut
899		1410
900	sub register_extcmd {	1411	sub register_extcmd {
901	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
902		1413
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
907	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
908		1424
909	cf::player->attach (	1425	cf::player->attach (
910	on_command => sub {	1426	on_unknown_command => sub {
911	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
912		1428
913	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
914	or return;	1430	or return;
915		1431
…		…
920	cf::override;	1436	cf::override;
921	},	1437	},
922	on_extcmd => sub {	1438	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
924		1440
925	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1442
927	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
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
933	} else {	1458	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1460	}
936		1461
937	cf::override;	1462	cf::override;
938	},	1463	},
939	);	1464	);
940		1465
941	sub register {	1466	# "readahead" all extensions
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1467	sub cache_extensions {
948	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
949		1469
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }
990
991	# remove commands
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}	1473	}
1000	}	1474	};
1001		1475
1002	# remove extcmds	1476	$grp
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	1477	}
1016		1478
1017	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1018	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	1486	next unless -r $path;
1020	eval {	1487
1021	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	}
1022	1	1551	}
1023	} 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	}
1024	}	1564	};
1025	}	1565	}
1026		1566
1027	#############################################################################	1567	#############################################################################
1028	# load/save/clean perl data associated with a map
1029		1568
1030	*cf::mapsupport::on_clean = sub {	1569	=back
		1570
		1571	=head2 CORE EXTENSIONS
		1572
		1573	Functions and methods that extend core deliantra objects.
		1574
		1575	=cut
		1576
		1577	package cf::player;
		1578
		1579	use Coro::AIO;
		1580
		1581	=head3 cf::player
		1582
		1583	=over 4
		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
		1599	=item cf::player::find $login
		1600
		1601	Returns the given player object, loading it if necessary (might block).
		1602
		1603	=cut
		1604
		1605	sub playerdir($) {
		1606	"$PLAYERDIR/"
		1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1608	}
		1609
		1610	sub path($) {
		1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1612
		1613	(playerdir $login) . "/playerdata"
		1614	}
		1615
		1616	sub find_active($) {
		1617	$cf::PLAYER{$_[0]}
		1618	and $cf::PLAYER{$_[0]}->active
		1619	and $cf::PLAYER{$_[0]}
		1620	}
		1621
		1622	sub exists($) {
1031	my ($map) = @_;	1623	my ($login) = @_;
1032		1624
1033	my $path = $map->tmpname;	1625	$cf::PLAYER{$login}
1034	defined $path or return;	1626	or !aio_stat path $login
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}	1627	}
1047		1628
1048	# TODO: compatibility cruft, remove when no longer needed	1629	sub find($) {
		1630	return $cf::PLAYER{$_[0]} || do {
		1631	my $login = $_[0];
		1632
		1633	my $guard = cf::lock_acquire "user_find:$login";
		1634
		1635	$cf::PLAYER{$_[0]} || do {
		1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
		1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
		1651	$cf::PLAYER{$login} = $pl
		1652	}
		1653	}
		1654	}
		1655
1049	cf::player->attach (	1656	cf::player->attach (
1050	on_load => sub {	1657	on_load => sub {
1051	my ($pl, $path) = @_;	1658	my ($pl, $path) = @_;
1052		1659
1053	for my $o (all_objects $pl->ob) {	1660	# restore slots saved in save, below
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1661	my $slots = delete $pl->{_slots};
1055	$o->set_ob_key_value ("_perl_data");
1056		1662
1057	%$o = %{ Storable::thaw pack "H*", $value };	1663	$pl->ob->current_weapon ($slots->[0]);
1058	}	1664	$pl->combat_ob ($slots->[1]);
1059	}	1665	$pl->ranged_ob ($slots->[2]);
1060	},	1666	},
1061	);	1667	);
1062		1668
1063	#############################################################################	1669	sub save($) {
		1670	my ($pl) = @_;
1064		1671
1065	=head2 CORE EXTENSIONS	1672	return if $pl->{deny_save};
1066		1673
1067	Functions and methods that extend core crossfire objects.	1674	my $path = path $pl;
		1675	my $guard = cf::lock_acquire "user_save:$path";
1068		1676
1069	=head3 cf::player	1677	return if $pl->{deny_save};
		1678
		1679	aio_mkdir playerdir $pl, 0770;
		1680	$pl->{last_save} = $cf::RUNTIME;
		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
		1687	$pl->save_pl ($path);
		1688	cf::cede_to_tick;
		1689	}
		1690
		1691	sub new($) {
		1692	my ($login) = @_;
		1693
		1694	my $self = create;
		1695
		1696	$self->ob->name ($login);
		1697	$self->{deny_save} = 1;
		1698
		1699	$cf::PLAYER{$login} = $self;
		1700
		1701	$self
		1702	}
		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
		1721	sub quit_character {
		1722	my ($pl) = @_;
		1723
		1724	my $name = $pl->ob->name;
		1725
		1726	$pl->{deny_save} = 1;
		1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1728
		1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
		1736	$pl->ns->destroy if $pl->ns;
		1737
		1738	my $path = playerdir $pl;
		1739	my $temp = "$path~$cf::RUNTIME~deleting~";
		1740	aio_rename $path, $temp;
		1741	delete $cf::PLAYER{$pl->ob->name};
		1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
		1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
		1831	=item $player->ext_reply ($msgid, @msg)
		1832
		1833	Sends an ext reply to the player.
		1834
		1835	=cut
		1836
		1837	sub ext_reply($$@) {
		1838	my ($self, $id, @msg) = @_;
		1839
		1840	$self->ns->ext_reply ($id, @msg)
		1841	}
		1842
		1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
1070		1856
1071	=over 4	1857	=over 4
1072		1858
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut	1859	=cut
1078		1860
1079	sub cf::player::exists($) {	1861	package cf::region;
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083		1862
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1863	=item cf::region::find_by_path $path
1085		1864
1086	Sends an ext reply to the player.	1865	Tries to decuce the likely region for a map knowing only its path.
1087		1866
1088	=cut	1867	=cut
1089		1868
1090	sub cf::player::ext_reply($$$%) {	1869	sub find_by_path($) {
1091	my ($self, $id, %msg) = @_;	1870	my ($path) = @_;
1092		1871
1093	$msg{msgid} = $id;	1872	$path =~ s/^~[^\/]*//; # skip ~login
1094		1873
1095	$self->send ("ext " . to_json \%msg);	1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
1096	}	1884	}
1097		1885
1098	=back	1886	=back
1099
1100		1887
1101	=head3 cf::map	1888	=head3 cf::map
1102		1889
1103	=over 4	1890	=over 4
1104		1891
…		…
1107	package cf::map;	1894	package cf::map;
1108		1895
1109	use Fcntl;	1896	use Fcntl;
1110	use Coro::AIO;	1897	use Coro::AIO;
1111		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1112	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1114		1905
1115	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1116	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1117		1946
1118	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1119	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1120	$path,	1976	$path
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})
1132	}	1977	}
1133		1978
1134	# and all this just because we cannot iterate over	1979	sub new_from_path {
1135	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1136	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1137	my ($change) = @_;	2001	my ($self) = @_;
1138		2002
1139	$_->change_map_light ($change)	2003	$self
1140	for grep $_->outdoor, values %cf::MAP;
1141	}	2004	}
1142		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1143	sub try_load_header($) {	2056	sub load_header_from($) {
1144	my ($path) = @_;	2057	my ($self, $path) = @_;
1145		2058
1146	utf8::encode $path;	2059	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1148	or return;	2061	or return;
1149		2062
1150	my $map = cf::map::new	2063	$self->_load_header ($f)
1151	or return;	2064	or return;
1152		2065
1153	# for better error messages only, will be overwritten	2066	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	2067	$f->resolve_delayed_derefs;
1155		2068
1156	$map->load_header ($path)	2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	# used to laod the header of an original map
		2075	sub load_header_orig {
		2076	my ($self) = @_;
		2077
		2078	$self->load_header_from ($self->load_path)
		2079	}
		2080
		2081	# used to laod the header of an instantiated map
		2082	sub load_header_temp {
		2083	my ($self) = @_;
		2084
		2085	$self->load_header_from ($self->save_path)
		2086	}
		2087
		2088	# called after loading the header from an instantiated map
		2089	sub prepare_temp {
		2090	my ($self) = @_;
		2091
		2092	$self->last_access ((delete $self->{last_access})
		2093	|| $cf::RUNTIME); #d#
		2094	# safety
		2095	$self->{instantiate_time} = $cf::RUNTIME
		2096	if $self->{instantiate_time} > $cf::RUNTIME;
		2097	}
		2098
		2099	# called after loading the header from an original map
		2100	sub prepare_orig {
		2101	my ($self) = @_;
		2102
		2103	$self->{load_original} = 1;
		2104	$self->{instantiate_time} = $cf::RUNTIME;
		2105	$self->last_access ($cf::RUNTIME);
		2106	$self->instantiate;
		2107	}
		2108
		2109	sub load_header {
		2110	my ($self) = @_;
		2111
		2112	if ($self->load_header_temp) {
		2113	$self->prepare_temp;
		2114	} else {
		2115	$self->load_header_orig
1157	or return;	2116	or return;
		2117	$self->prepare_orig;
		2118	}
1158		2119
1159	$map->{load_path} = $path;	2120	$self->{deny_reset} = 1
		2121	if $self->no_reset;
1160		2122
1161	$map	2123	$self->default_region (cf::region::find_by_path $self->{path})
		2124	unless $self->default_region;
		2125
		2126	1
1162	}	2127	}
1163		2128
1164	sub find;	2129	sub find;
1165	sub find {	2130	sub find {
1166	my ($path, $origin) = @_;	2131	my ($path, $origin) = @_;
1167		2132
1168	#warn "find<$path,$origin>\n";#d#	2133	cf::cede_to_tick;
1169		2134
1170	$path = new cf::path $path, $origin && $origin->path;	2135	$path = normalise $path, $origin;
1171	my $key = $path->as_string;
1172		2136
1173	cf::lock_wait "map_find:$key";	2137	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1174
1175	$cf::MAP{$key} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	2138	my $guard2 = cf::lock_acquire "map_find:$path";
1177		2139
1178	# do it the slow way	2140	$cf::MAP{$path} || do {
1179	my $map = try_load_header $path->save_path;	2141	my $map = new_from_path cf::map $path
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	2142	or return;
1197		2143
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	2144	$map->{last_save} = $cf::RUNTIME;
1210		2145
1211	Coro::cede;	2146	$map->load_header
		2147	or return;
1212		2148
1213	if ($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;
1214	$map->reset;	2154	$map->reset;
1215	undef $guard;
1216	$map = find $path	2155	return find $path;
1217	or return;
1218	}	2156	}
1219		2157
1220	$cf::MAP{$key} = $map	2158	$cf::MAP{$path} = $map
1221	}	2159	}
1222	}	2160	}
		2161
		2162	sub pre_load { }
		2163	#sub post_load { } # XS
1223		2164
1224	sub load {	2165	sub load {
1225	my ($self) = @_;	2166	my ($self) = @_;
1226		2167
		2168	local $self->{deny_reset} = 1; # loading can take a long time
		2169
1227	my $path = $self->{path};	2170	my $path = $self->{path};
		2171
		2172	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2173	my $guard = cf::lock_acquire "map_data:$path";
1229		2174
		2175	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	2176	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		2177
1232	$self->in_memory (cf::MAP_LOADING);	2178	$self->in_memory (cf::MAP_LOADING);
1233		2179
1234	$self->alloc;	2180	$self->alloc;
1235	$self->load_objects ($self->{load_path}, 1)	2181
		2182	$self->pre_load;
		2183	cf::cede_to_tick;
		2184
		2185	if (exists $self->{load_path}) {
		2186	my $f = new_from_file cf::object::thawer $self->{load_path};
		2187	$f->skip_block;
		2188	$self->_load_objects ($f)
1236	or return;	2189	or return;
1237		2190
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2191	$self->post_load_original
1239	if delete $self->{load_original};	2192	if delete $self->{load_original};
1240		2193
1241	if (my $uniq = $path->uniq_path) {	2194	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	2195	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	2196	unless (aio_stat $uniq) {
		2197	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	2198	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	2199	$self->_load_objects ($f);
		2200	$f->resolve_delayed_derefs;
		2201	}
		2202	}
1246	}	2203	}
1247	}
1248		2204
1249	Coro::cede;	2205	$f->resolve_delayed_derefs;
		2206	} else {
		2207	$self->post_load_original
		2208	if delete $self->{load_original};
		2209	}
1250		2210
		2211	cf::cede_to_tick;
1251	# now do the right thing for maps	2212	# now do the right thing for maps
1252	$self->link_multipart_objects;	2213	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	2214	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	2215	unless $self->difficulty;
1264	$self->activate;	2216	cf::cede_to_tick;
1265	}
1266		2217
1267	Coro::cede;	2218	unless ($self->{deny_activate}) {
		2219	$self->decay_objects;
		2220	$self->fix_auto_apply;
		2221	$self->update_buttons;
		2222	cf::cede_to_tick;
		2223	#$self->activate; # no longer activate maps automatically
		2224	}
1268		2225
		2226	$self->{last_save} = $cf::RUNTIME;
		2227	$self->last_access ($cf::RUNTIME);
		2228
1269	$self->in_memory (cf::MAP_IN_MEMORY);	2229	$self->in_memory (cf::MAP_ACTIVE);
		2230	}
		2231
		2232	$self->post_load;
		2233
		2234	1
		2235	}
		2236
		2237	# customize the map for a given player, i.e.
		2238	# return the _real_ map. used by e.g. per-player
		2239	# maps to change the path to ~playername/mappath
		2240	sub customise_for {
		2241	my ($self, $ob) = @_;
		2242
		2243	return find "~" . $ob->name . "/" . $self->{path}
		2244	if $self->per_player;
		2245
		2246	# return find "?party/" . $ob->name . "/" . $self->{path}
		2247	# if $self->per_party;
		2248
		2249	$self
		2250	}
		2251
		2252	# find and load all maps in the 3x3 area around a map
		2253	sub load_neighbours {
		2254	my ($map) = @_;
		2255
		2256	my @neigh; # diagonal neighbours
		2257
		2258	for (0 .. 3) {
		2259	my $neigh = $map->tile_path ($_)
		2260	or next;
		2261	$neigh = find $neigh, $map
		2262	or next;
		2263	$neigh->load;
		2264
		2265	# now find the diagonal neighbours
		2266	push @neigh,
		2267	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2268	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2269	}
		2270
		2271	for (grep defined $_->[0], @neigh) {
		2272	my ($path, $origin) = @$_;
		2273	my $neigh = find $path, $origin
		2274	or next;
		2275	$neigh->load;
		2276	}
1270	}	2277	}
1271		2278
1272	sub find_sync {	2279	sub find_sync {
1273	my ($path, $origin) = @_;	2280	my ($path, $origin) = @_;
1274		2281
1275	cf::sync_job {	2282	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
1276	my $map = cf::map::find $path, $origin;	2283	if $Coro::current == $Coro::main;
1277	$map	2284
1278	}	2285	find $path, $origin
1279	}	2286	}
1280		2287
1281	sub do_load_sync {	2288	sub do_load_sync {
1282	my ($map) = @_;	2289	my ($map) = @_;
1283		2290
1284	cf::sync_job { $map->load };	2291	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2292	if $Coro::current == $Coro::main;
		2293
		2294	$map->load;
		2295	}
		2296
		2297	our %MAP_PREFETCH;
		2298	our $MAP_PREFETCHER = undef;
		2299
		2300	sub find_async {
		2301	my ($path, $origin, $load) = @_;
		2302
		2303	$path = normalise $path, $origin;
		2304
		2305	if (my $map = $cf::MAP{$path}) {
		2306	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2307	}
		2308
		2309	$MAP_PREFETCH{$path} |= $load;
		2310
		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;
		2324	};
		2325	$MAP_PREFETCHER->prio (6);
		2326
		2327	()
		2328	}
		2329
		2330	# common code, used by both ->save and ->swapout
		2331	sub _save {
		2332	my ($self) = @_;
		2333
		2334	$self->{last_save} = $cf::RUNTIME;
		2335
		2336	return unless $self->dirty;
		2337
		2338	my $save = $self->save_path; utf8::encode $save;
		2339	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2340
		2341	$self->{load_path} = $save;
		2342
		2343	return if $self->{deny_save};
		2344
		2345	local $self->{last_access} = $self->last_access;#d#
		2346
		2347	cf::async {
		2348	$Coro::current->{desc} = "map player save";
		2349	$_->contr->save for $self->players;
		2350	};
		2351
		2352	cf::get_slot 0.02;
		2353
		2354	if ($uniq) {
		2355	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2356	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2357	} else {
		2358	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2359	}
1285	}	2360	}
1286		2361
1287	sub save {	2362	sub save {
1288	my ($self) = @_;	2363	my ($self) = @_;
1289		2364
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2366
1292	$self->{last_save} = $cf::RUNTIME;	2367	$self->_save;
1293
1294	return unless $self->dirty;
1295
1296	my $save = $self->{path}->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1298
1299	$self->{load_path} = $save;
1300
1301	return if $self->{deny_save};
1302
1303	local $self->{last_access} = $self->last_access;#d#
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2368	}
1312		2369
1313	sub swap_out {	2370	sub swap_out {
1314	my ($self) = @_;	2371	my ($self) = @_;
1315		2372
1316	# save first because save cedes
1317	$self->save;
1318
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2374
		2375	return if $self->in_memory != cf::MAP_ACTIVE;
		2376	return if $self->{deny_save};
1321	return if $self->players;	2377	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};
1324		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
1325	$self->clear;	2388	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2389	}
1328		2390
1329	sub reset_at {	2391	sub reset_at {
1330	my ($self) = @_;	2392	my ($self) = @_;
1331		2393
1332	# TODO: safety, remove and allow resettable per-player maps	2394	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2395	return 1e99 if $self->{deny_reset};
1335		2396
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2397	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2398	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2399
…		…
1343	my ($self) = @_;	2404	my ($self) = @_;
1344		2405
1345	$self->reset_at <= $cf::RUNTIME	2406	$self->reset_at <= $cf::RUNTIME
1346	}	2407	}
1347		2408
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2409	sub reset {
1370	my ($self) = @_;	2410	my ($self) = @_;
1371		2411
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2412	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2413
1374	return if $self->players;	2414	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2415
1377	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	}
1378		2427
1379	delete $cf::MAP{$self->path};	2428	delete $cf::MAP{$self->path};
1380		2429
		2430	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2431	$_->clear_links_to ($self) for values %cf::MAP;
		2432	$self->clear;
1382		2433
1383	$self->unlink_save;	2434	$self->unlink_save;
1384	$self->destroy;	2435	$self->destroy;
1385	}	2436	}
1386		2437
1387	my $nuke_counter = "aaaa";	2438	my $nuke_counter = "aaaa";
1388		2439
1389	sub nuke {	2440	sub nuke {
1390	my ($self) = @_;	2441	my ($self) = @_;
1391		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};
1392	$self->{deny_save} = 1;	2452	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2453	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2454	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2455
		2456	$cf::MAP{$self->path} = $self;
		2457	}
		2458
1395	$self->reset; # polite request, might not happen	2459	$self->reset; # polite request, might not happen
1396	}	2460	}
1397		2461
1398	sub customise_for {	2462	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2463
1401	if ($map->per_player) {	2464	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2465	maps. May block.
		2466
		2467	=cut
		2468
		2469	sub tmp_maps() {
1403	}	2470	[
1404		2471	map {
1405	$map	2472	utf8::decode $_;
		2473	/\.map$/
		2474	? normalise $_
		2475	: ()
		2476	} @{ aio_readdir $TMPDIR or [] }
		2477	]
1406	}	2478	}
1407		2479
1408	sub emergency_save {	2480	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2481
1411	warn "enter emergency map save\n";	2482	Returns an arrayref with all map paths of currently instantiated and saved
		2483	random maps. May block.
1412		2484
1413	cf::sync_job {	2485	=cut
1414	warn "begin emergency map save\n";	2486
1415	$_->save for values %cf::MAP;	2487	sub random_maps() {
		2488	[
		2489	map {
		2490	utf8::decode $_;
		2491	/\.map$/
		2492	? normalise "?random/$_"
		2493	: ()
		2494	} @{ aio_readdir $RANDOMDIR or [] }
		2495	]
		2496	}
		2497
		2498	=item cf::map::unique_maps
		2499
		2500	Returns an arrayref of paths of all shared maps that have
		2501	instantiated unique items. May block.
		2502
		2503	=cut
		2504
		2505	sub unique_maps() {
		2506	[
		2507	map {
		2508	utf8::decode $_;
		2509	s/\.map$//; # TODO future compatibility hack
		2510	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2511	? ()
		2512	: normalise $_
		2513	} @{ aio_readdir $UNIQUEDIR or [] }
		2514	]
		2515	}
		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) {
		2538	s/\.map$// or next;
		2539	utf8::decode $_;
		2540	push @maps, "$dir/$_";
		2541	}
		2542
		2543	push @dirs, map "$dir/$_", @$dirs;
1416	};	2544	}
1417		2545
1418	warn "end emergency map save\n";	2546	\@maps
		2547	}
		2548
		2549	=back
		2550
		2551	=head3 cf::object
		2552
		2553	=cut
		2554
		2555	package cf::object;
		2556
		2557	=over 4
		2558
		2559	=item $ob->inv_recursive
		2560
		2561	Returns the inventory of the object I<and> their inventories, recursively,
		2562	but I<not> the object itself.
		2563
		2564	=cut
		2565
		2566	sub inv_recursive_;
		2567	sub inv_recursive_ {
		2568	map { $_, inv_recursive_ $_->inv } @_
		2569	}
		2570
		2571	sub inv_recursive {
		2572	inv_recursive_ inv $_[0]
		2573	}
		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	}
1419	}	2601	}
1420		2602
1421	package cf;	2603	package cf;
1422		2604
1423	=back	2605	=back
1424
1425		2606
1426	=head3 cf::object::player	2607	=head3 cf::object::player
1427		2608
1428	=over 4	2609	=over 4
1429		2610
…		…
1432	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>
1433	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
1434	dialogue with the given NPC character.	2615	dialogue with the given NPC character.
1435		2616
1436	=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	};
1437		2632
1438	# rough implementation of a future "reply" method that works	2633	# rough implementation of a future "reply" method that works
1439	# with dialog boxes.	2634	# with dialog boxes.
1440	#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
1441	sub cf::object::player::reply($$$;$) {	2636	sub cf::object::player::reply($$$;$) {
…		…
1443		2638
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2639	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2640
1446	if ($self->{record_replies}) {	2641	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2642	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2643
1448	} 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 {
1449	$msg = $npc->name . " says: $msg" if $npc;	2652	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2653	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2654	}
1451	}	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 (@_);
1452	}	2666	}
1453		2667
1454	=item $player_object->may ("access")	2668	=item $player_object->may ("access")
1455		2669
1456	Returns wether the given player is authorized to access resource "access"	2670	Returns wether the given player is authorized to access resource "access"
…		…
1469		2683
1470	=item $player_object->enter_link	2684	=item $player_object->enter_link
1471		2685
1472	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}>).
1473		2687
1474	The player should be reaosnably safe there for short amounts of time. You	2688	The player should be reasonably safe there for short amounts of time (e.g.
1475	I<MUST> call C<leave_link> as soon as possible, though.	2689	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2690	though, as the player cannot control the character while it is on the link
		2691	map.
		2692
		2693	Will never block.
1476		2694
1477	=item $player_object->leave_link ($map, $x, $y)	2695	=item $player_object->leave_link ($map, $x, $y)
1478		2696
1479	Moves the player out of the specila link map onto the given map. If the	2697	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2698	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2699	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2700	fails, to the emergency map position.
1483		2701
1484	Might block.	2702	Might block.
1485		2703
1486	=cut	2704	=cut
		2705
		2706	sub link_map {
		2707	unless ($LINK_MAP) {
		2708	$LINK_MAP = cf::map::find "{link}"
		2709	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2710	$LINK_MAP->load;
		2711	}
		2712
		2713	$LINK_MAP
		2714	}
1487		2715
1488	sub cf::object::player::enter_link {	2716	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2717	my ($self) = @_;
1490		2718
1491	$self->deactivate_recursive;	2719	$self->deactivate_recursive;
1492		2720
1493	return if $self->map == $LINK_MAP;	2721	++$self->{_link_recursion};
		2722
		2723	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2724
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2725	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2726	if $self->map && $self->map->{path} ne "{link}";
1497		2727
1498	$self->enter_map ($LINK_MAP, 20, 20);	2728	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1499	}	2729	}
1500		2730
1501	sub cf::object::player::leave_link {	2731	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2732	my ($self, $map, $x, $y) = @_;
		2733
		2734	return unless $self->contr->active;
1503		2735
1504	my $link_pos = delete $self->{_link_pos};	2736	my $link_pos = delete $self->{_link_pos};
1505		2737
1506	unless ($map) {	2738	unless ($map) {
1507	# restore original map position	2739	# restore original map position
…		…
1518	($x, $y) = (-1, -1)	2750	($x, $y) = (-1, -1)
1519	unless (defined $x) && (defined $y);	2751	unless (defined $x) && (defined $y);
1520		2752
1521	# use -1 or undef as default coordinates, not 0, 0	2753	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2754	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2755	if $x <= 0 && $y <= 0;
1524		2756
1525	$map->load;	2757	$map->load;
		2758	$map->load_neighbours;
1526		2759
		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
1527	$self->activate_recursive;	2767	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);
1529	}
1530
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},	2768	}
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2769
1545	# try to abort aborted map switching on player login :)	2770	}
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548		2771
1549	$pl->ob->enter_link;	2772	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559		2773
1560	=item $player_object->goto ($path, $x, $y)	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.
1561		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
1562	=cut	2783	=cut
		2784
		2785	our $GOTOGEN;
1563		2786
1564	sub cf::object::player::goto {	2787	sub cf::object::player::goto {
1565	my ($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;
1566		2798
1567	$self->enter_link;	2799	$self->enter_link;
1568		2800
1569	(Coro::async_pool {	2801	(async {
1570	$path = new cf::path $path;	2802	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2803
1572	my $map = cf::map::find $path->as_string;	2804	# *tag paths override both path and x|y
		2805	if ($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) {
1573	$map = $map->customise_for ($self) if $map;	2827	$map = $map->customise_for ($self);
1574		2828	$map = $check->($map, $x, $y, $self) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2829	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2830	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	}
1579		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};
1580	$self->leave_link ($map, $x, $y);	2843	$self->leave_link ($map, $x, $y);
		2844	}
		2845
		2846	$done->($self) if $done;
1581	})->prio (1);	2847	})->prio (1);
1582	}	2848	}
1583		2849
1584	=item $player_object->enter_exit ($exit_object)	2850	=item $player_object->enter_exit ($exit_object)
1585		2851
…		…
1587		2853
1588	sub parse_random_map_params {	2854	sub parse_random_map_params {
1589	my ($spec) = @_;	2855	my ($spec) = @_;
1590		2856
1591	my $rmp = { # defaults	2857	my $rmp = { # defaults
1592	xsize => 10,	2858	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2859	ysize => (cf::rndm 15, 40),
		2860	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2861	#layout => string,
1594	};	2862	};
1595		2863
1596	for (split /\n/, $spec) {	2864	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2865	my ($k, $v) = split /\s+/, $_, 2;
1598		2866
…		…
1610	# that depends on the exit object	2878	# that depends on the exit object
1611		2879
1612	my $rmp = parse_random_map_params $exit->msg;	2880	my $rmp = parse_random_map_params $exit->msg;
1613		2881
1614	if ($exit->map) {	2882	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2883	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2884	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2885	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2886	$rmp->{origin_y} = $exit->y;
		2887
		2888	$exit->map->touch;
1619	}	2889	}
1620		2890
1621	$rmp->{random_seed} ||= $exit->random_seed;	2891	$rmp->{random_seed} ||= $exit->random_seed;
1622		2892
1623	my $data = cf::to_json $rmp;	2893	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1624	my $md5 = Digest::MD5::md5_hex $data;	2894	my $md5 = Digest::MD5::md5_hex $data;
		2895	my $meta = "$RANDOMDIR/$md5.meta";
1625		2896
1626	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) {
1627	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;
1628		2901
		2902	my $slaying = "?random/$md5";
		2903
		2904	if ($exit->valid) {
1629	$exit->slaying ("?random/$md5");	2905	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2906	$exit->msg (undef);
		2907	}
1631	}	2908	}
1632	}	2909	}
1633		2910
1634	sub cf::object::player::enter_exit {	2911	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2912	my ($self, $exit) = @_;
1636		2913
1637	return unless $self->type == cf::PLAYER;	2914	return unless $self->type == cf::PLAYER;
1638		2915
1639	$self->enter_link;	2916	$self->enter_link;
1640		2917
1641	(Coro::async_pool {	2918	(async {
1642	$self->deactivate_recursive; # just to be sure	2919	$Coro::current->{desc} = "enter_exit";
		2920
1643	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
1644	prepare_random_map $exit	2935	prepare_random_map $exit
1645	if $exit->slaying eq "/!";	2936	if $slaying eq "/!"; # need to re-check after getting the lock
1646		2937
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2938	} elsif ($slaying eq '!up') {
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2939	$map = $exit->map->tile_path (cf::TILE_UP);
		2940	$x = $exit->x;
		2941	$y = $exit->y;
1649		2942
		2943	} elsif ($slaying eq '!down') {
		2944	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2945	$x = $exit->x;
		2946	$y = $exit->y;
		2947	}
		2948
		2949	$self->goto ($map, $x, $y);
		2950
		2951	# if exit is damned, update players death & WoR home-position
		2952	$self->contr->savebed ($map, $x, $y)
		2953	if $exit->flag (cf::FLAG_DAMNED);
		2954
1650	1;	2955	1
1651	}) {	2956	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2957	$self->message ("Something went wrong deep within the deliantra server. "
1653	. "I'll try to bring you back to the map you were before. "	2958	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2959	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2960	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2961
1657	warn "ERROR in enter_exit: $@";	2962	error "ERROR in enter_exit: $@";
1658	$self->leave_link;	2963	$self->leave_link;
1659	}	2964	}
1660	})->prio (1);	2965	})->prio (1);
1661	}	2966	}
1662		2967
…		…
1673		2978
1674	sub cf::client::send_drawinfo {	2979	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2980	my ($self, $text, $flags) = @_;
1676		2981
1677	utf8::encode $text;	2982	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2983	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2984	}
1680		2985
		2986	=item $client->send_big_packet ($pkt)
		2987
		2988	Like C<send_packet>, but tries to compress large packets, and fragments
		2989	them as required.
		2990
		2991	=cut
		2992
		2993	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2994
		2995	sub cf::client::send_big_packet {
		2996	my ($self, $pkt) = @_;
		2997
		2998	# try lzf for large packets
		2999	$pkt = "lzf " . Compress::LZF::compress $pkt
		3000	if 1024 <= length $pkt and $self->{can_lzf};
		3001
		3002	# split very large packets
		3003	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3004	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3005	$pkt = "frag";
		3006	}
		3007
		3008	$self->send_packet ($pkt);
		3009	}
		3010
		3011	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3012
		3013	Send a drawinfo or msg packet to the client, formatting the msg for the
		3014	client if neccessary. C<$type> should be a string identifying the type of
		3015	the message, with C<log> being the default. If C<$color> is negative, suppress
		3016	the message unless the client supports the msg packet.
		3017
		3018	=cut
		3019
		3020	# non-persistent channels (usually the info channel)
		3021	our %CHANNEL = (
		3022	"c/motd" => {
		3023	id => "infobox",
		3024	title => "MOTD",
		3025	reply => undef,
		3026	tooltip => "The message of the day",
		3027	},
		3028	"c/identify" => {
		3029	id => "infobox",
		3030	title => "Identify",
		3031	reply => undef,
		3032	tooltip => "Items recently identified",
		3033	},
		3034	"c/examine" => {
		3035	id => "infobox",
		3036	title => "Examine",
		3037	reply => undef,
		3038	tooltip => "Signs and other items you examined",
		3039	},
		3040	"c/shopinfo" => {
		3041	id => "infobox",
		3042	title => "Shop Info",
		3043	reply => undef,
		3044	tooltip => "What your bargaining skill tells you about the shop",
		3045	},
		3046	"c/book" => {
		3047	id => "infobox",
		3048	title => "Book",
		3049	reply => undef,
		3050	tooltip => "The contents of a note or book",
		3051	},
		3052	"c/lookat" => {
		3053	id => "infobox",
		3054	title => "Look",
		3055	reply => undef,
		3056	tooltip => "What you saw there",
		3057	},
		3058	"c/who" => {
		3059	id => "infobox",
		3060	title => "Players",
		3061	reply => undef,
		3062	tooltip => "Shows players who are currently online",
		3063	},
		3064	"c/body" => {
		3065	id => "infobox",
		3066	title => "Body Parts",
		3067	reply => undef,
		3068	tooltip => "Shows which body parts you posess and are available",
		3069	},
		3070	"c/statistics" => {
		3071	id => "infobox",
		3072	title => "Statistics",
		3073	reply => undef,
		3074	tooltip => "Shows your primary statistics",
		3075	},
		3076	"c/skills" => {
		3077	id => "infobox",
		3078	title => "Skills",
		3079	reply => undef,
		3080	tooltip => "Shows your experience per skill and item power",
		3081	},
		3082	"c/shopitems" => {
		3083	id => "infobox",
		3084	title => "Shop Items",
		3085	reply => undef,
		3086	tooltip => "Shows the items currently for sale in this shop",
		3087	},
		3088	"c/resistances" => {
		3089	id => "infobox",
		3090	title => "Resistances",
		3091	reply => undef,
		3092	tooltip => "Shows your resistances",
		3093	},
		3094	"c/pets" => {
		3095	id => "infobox",
		3096	title => "Pets",
		3097	reply => undef,
		3098	tooltip => "Shows information abotu your pets/a specific pet",
		3099	},
		3100	"c/perceiveself" => {
		3101	id => "infobox",
		3102	title => "Perceive Self",
		3103	reply => undef,
		3104	tooltip => "You gained detailed knowledge about yourself",
		3105	},
		3106	"c/uptime" => {
		3107	id => "infobox",
		3108	title => "Uptime",
		3109	reply => undef,
		3110	tooltip => "How long the server has been running since last restart",
		3111	},
		3112	"c/mapinfo" => {
		3113	id => "infobox",
		3114	title => "Map Info",
		3115	reply => undef,
		3116	tooltip => "Information related to the maps",
		3117	},
		3118	"c/party" => {
		3119	id => "party",
		3120	title => "Party",
		3121	reply => "gsay ",
		3122	tooltip => "Messages and chat related to your party",
		3123	},
		3124	"c/death" => {
		3125	id => "death",
		3126	title => "Death",
		3127	reply => undef,
		3128	tooltip => "Reason for and more info about your most recent death",
		3129	},
		3130	"c/say" => $SAY_CHANNEL,
		3131	"c/chat" => $CHAT_CHANNEL,
		3132	);
		3133
		3134	sub cf::client::send_msg {
		3135	my ($self, $channel, $msg, $color, @extra) = @_;
		3136
		3137	$msg = $self->pl->expand_cfpod ($msg)
		3138	unless $color & cf::NDI_VERBATIM;
		3139
		3140	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3141
		3142	# check predefined channels, for the benefit of C
		3143	if ($CHANNEL{$channel}) {
		3144	$channel = $CHANNEL{$channel};
		3145
		3146	$self->ext_msg (channel_info => $channel);
		3147	$channel = $channel->{id};
		3148
		3149	} elsif (ref $channel) {
		3150	# send meta info to client, if not yet sent
		3151	unless (exists $self->{channel}{$channel->{id}}) {
		3152	$self->{channel}{$channel->{id}} = $channel;
		3153	$self->ext_msg (channel_info => $channel);
		3154	}
		3155
		3156	$channel = $channel->{id};
		3157	}
		3158
		3159	return unless @extra || length $msg;
		3160
		3161	# default colour, mask it out
		3162	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3163	if $color & cf::NDI_DEF;
		3164
		3165	my $pkt = "msg "
		3166	. $self->{json_coder}->encode (
		3167	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3168	);
		3169
		3170	$self->send_big_packet ($pkt);
		3171	}
		3172
		3173	=item $client->ext_msg ($type, @msg)
		3174
		3175	Sends an ext event to the client.
		3176
		3177	=cut
		3178
		3179	sub cf::client::ext_msg($$@) {
		3180	my ($self, $type, @msg) = @_;
		3181
		3182	if ($self->extcmd == 2) {
		3183	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3184	} elsif ($self->extcmd == 1) { # TODO: remove
		3185	push @msg, msgtype => "event_$type";
		3186	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3187	}
		3188	}
		3189
		3190	=item $client->ext_reply ($msgid, @msg)
		3191
		3192	Sends an ext reply to the client.
		3193
		3194	=cut
		3195
		3196	sub cf::client::ext_reply($$@) {
		3197	my ($self, $id, @msg) = @_;
		3198
		3199	if ($self->extcmd == 2) {
		3200	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3201	} elsif ($self->extcmd == 1) {
		3202	#TODO: version 1, remove
		3203	unshift @msg, msgtype => "reply", msgid => $id;
		3204	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3205	}
		3206	}
1681		3207
1682	=item $success = $client->query ($flags, "text", \&cb)	3208	=item $success = $client->query ($flags, "text", \&cb)
1683		3209
1684	Queues a query to the client, calling the given callback with	3210	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3211	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3212	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		3213
1688	Queries can fail, so check the return code. Or don't, as queries will become	3214	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	3215	become reliable at some point in the future.
1690		3216
1691	=cut	3217	=cut
1692		3218
1693	sub cf::client::query {	3219	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	3220	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	3228	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3229	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		3230
1705	$self->send_packet ($self->{query_queue}[0][0])	3231	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	3232	if @{ $self->{query_queue} } == 1;
		3233
		3234	1
1707	}	3235	}
1708		3236
1709	cf::client->attach (	3237	cf::client->attach (
		3238	on_connect => sub {
		3239	my ($ns) = @_;
		3240
		3241	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3242	},
1710	on_reply => sub {	3243	on_reply => sub {
1711	my ($ns, $msg) = @_;	3244	my ($ns, $msg) = @_;
1712		3245
1713	# this weird shuffling is so that direct followup queries	3246	# this weird shuffling is so that direct followup queries
1714	# get handled first	3247	# get handled first
1715	my $queue = delete $ns->{query_queue}	3248	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	3249	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		3250
1718	(shift @$queue)->[1]->($msg);	3251	(shift @$queue)->[1]->($msg);
		3252	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		3253
1720	push @{ $ns->{query_queue} }, @$queue;	3254	push @{ $ns->{query_queue} }, @$queue;
1721		3255
1722	if (@{ $ns->{query_queue} } == @$queue) {	3256	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	3257	if (@$queue) {
…		…
1725	} else {	3259	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3260	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	3261	}
1728	}	3262	}
1729	},	3263	},
		3264	on_exticmd => sub {
		3265	my ($ns, $buf) = @_;
		3266
		3267	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3268
		3269	if (ref $msg) {
		3270	my ($type, $reply, @payload) =
		3271	"ARRAY" eq ref $msg
		3272	? @$msg
		3273	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3274
		3275	my @reply;
		3276
		3277	if (my $cb = $EXTICMD{$type}) {
		3278	@reply = $cb->($ns, @payload);
		3279	}
		3280
		3281	$ns->ext_reply ($reply, @reply)
		3282	if $reply;
		3283
		3284	} else {
		3285	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3286	}
		3287
		3288	cf::override;
		3289	},
1730	);	3290	);
1731		3291
1732	=item $client->coro (\&cb)	3292	=item $client->async (\&cb)
1733		3293
1734	Create a new coroutine, running the specified callback. The coroutine will	3294	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	3295	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	3296	or loss of connection).
1737		3297
1738	=cut	3298	=cut
1739		3299
1740	sub cf::client::coro {	3300	sub cf::client::async {
1741	my ($self, $cb) = @_;	3301	my ($self, $cb) = @_;
1742		3302
1743	my $coro = &Coro::async_pool ($cb);	3303	my $coro = &Coro::async ($cb);
1744		3304
1745	$coro->on_destroy (sub {	3305	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	3306	delete $self->{_coro}{$coro+0};
1747	});	3307	});
1748		3308
…		…
1750		3310
1751	$coro	3311	$coro
1752	}	3312	}
1753		3313
1754	cf::client->attach (	3314	cf::client->attach (
1755	on_destroy => sub {	3315	on_client_destroy => sub {
1756	my ($ns) = @_;	3316	my ($ns) = @_;
1757		3317
1758	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3318	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1759	},	3319	},
1760	);	3320	);
…		…
1775	our $safe = new Safe "safe";	3335	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	3336	our $safe_hole = new Safe::Hole;
1777		3337
1778	$SIG{FPE} = 'IGNORE';	3338	$SIG{FPE} = 'IGNORE';
1779		3339
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3340	$safe->permit_only (Opcode::opset qw(
		3341	:base_core :base_mem :base_orig :base_math :base_loop
		3342	grepstart grepwhile mapstart mapwhile
		3343	sort time
		3344	));
1781		3345
1782	# here we export the classes and methods available to script code	3346	# here we export the classes and methods available to script code
1783		3347
1784	=pod	3348	=pod
1785		3349
1786	The following fucntions and emthods are available within a safe environment:	3350	The following functions and methods are available within a safe environment:
1787		3351
1788	cf::object contr pay_amount pay_player map	3352	cf::object
		3353	contr pay_amount pay_player map x y force_find force_add destroy
		3354	insert remove name archname title slaying race decrease split
		3355	value
		3356
1789	cf::object::player player	3357	cf::object::player
1790	cf::player peaceful	3358	player
1791	cf::map trigger	3359
		3360	cf::player
		3361	peaceful
		3362
		3363	cf::map
		3364	trigger
1792		3365
1793	=cut	3366	=cut
1794		3367
1795	for (	3368	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	3369	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3370	insert remove inv nrof name archname title slaying race
		3371	decrease split destroy change_exp value msg lore send_msg)],
1797	["cf::object::player" => qw(player)],	3372	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	3373	["cf::player" => qw(peaceful send_msg)],
1799	["cf::map" => qw(trigger)],	3374	["cf::map" => qw(trigger)],
1800	) {	3375	) {
1801	no strict 'refs';
1802	my ($pkg, @funs) = @$_;	3376	my ($pkg, @funs) = @$_;
1803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3377	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1804	for @funs;	3378	for @funs;
1805	}	3379	}
1806		3380
…		…
1821		3395
1822	my $qcode = $code;	3396	my $qcode = $code;
1823	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3397	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1824	$qcode =~ s/\n/\\n/g;	3398	$qcode =~ s/\n/\\n/g;
1825		3399
		3400	%vars = (_dummy => 0) unless %vars;
		3401
		3402	my @res;
1826	local $_;	3403	local $_;
1827	local @safe::cf::_safe_eval_args = values %vars;
1828		3404
1829	my $eval =	3405	my $eval =
1830	"do {\n"	3406	"do {\n"
1831	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3407	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1832	. "#line 0 \"{$qcode}\"\n"	3408	. "#line 0 \"{$qcode}\"\n"
1833	. $code	3409	. $code
1834	. "\n}"	3410	. "\n}"
1835	;	3411	;
1836		3412
		3413	if ($CFG{safe_eval}) {
1837	sub_generation_inc;	3414	sub_generation_inc;
		3415	local @safe::cf::_safe_eval_args = values %vars;
1838	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3416	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1839	sub_generation_inc;	3417	sub_generation_inc;
		3418	} else {
		3419	local @cf::_safe_eval_args = values %vars;
		3420	@res = wantarray ? eval eval : scalar eval $eval;
		3421	}
1840		3422
1841	if ($@) {	3423	if ($@) {
1842	warn "$@";	3424	warn "$@",
1843	warn "while executing safe code '$code'\n";	3425	"while executing safe code '$code'\n",
1844	warn "with arguments " . (join " ", %vars) . "\n";	3426	"with arguments " . (join " ", %vars) . "\n";
1845	}	3427	}
1846		3428
1847	wantarray ? @res : $res[0]	3429	wantarray ? @res : $res[0]
1848	}	3430	}
1849		3431
…		…
1863	=cut	3445	=cut
1864		3446
1865	sub register_script_function {	3447	sub register_script_function {
1866	my ($fun, $cb) = @_;	3448	my ($fun, $cb) = @_;
1867		3449
1868	no strict 'refs';	3450	$fun = "safe::$fun" if $CFG{safe_eval};
1869	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3451	*$fun = $safe_hole->wrap ($cb);
1870	}	3452	}
1871		3453
1872	=back	3454	=back
1873		3455
1874	=cut	3456	=cut
1875		3457
1876	#############################################################################	3458	#############################################################################
		3459	# the server's init and main functions
1877		3460
1878	=head2 EXTENSION DATABASE SUPPORT	3461	sub load_facedata($) {
		3462	my ($path) = @_;
1879		3463
1880	Crossfire maintains a very simple database for extension use. It can	3464	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3465	# for this (global event?)
1882	excludes objects.	3466	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3467
1884	The parameter C<$family> should best start with the name of the extension	3468	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3469
1887	=over 4	3470	trace "loading facedata from $path\n";
1888		3471
1889	=item $hashref = cf::db_get $family	3472	my $facedata = decode_storable load_file $path;
1890		3473
1891	Return a hashref for use by the extension C<$family>, which can be	3474	$facedata->{version} == 2
1892	modified. After modifications, you have to call C<cf::db_dirty> or	3475	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893	C<cf::db_sync>.
1894		3476
1895	=item $value = cf::db_get $family => $key	3477	# patch in the exptable
1896		3478	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1897	Returns a single value from the database	3479	$facedata->{resource}{"res/exp_table"} = {
1898		3480	type => FT_RSRC,
1899	=item cf::db_put $family => $hashref	3481	data => $exp_table,
1900		3482	hash => (Digest::MD5::md5 $exp_table),
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3483	};
		3484	cf::cede_to_tick;
1950		3485
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3486	{
		3487	my $faces = $facedata->{faceinfo};
1955		3488
1956	sub db_get($;$) {	3489	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3490	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961		3491
1962	sub db_put($$;$) {	3492	cf::face::set_visibility $idx, $info->{visibility};
1963	if (@_ >= 3) {	3493	cf::face::set_magicmap $idx, $info->{magicmap};
1964	$DB->{$_[0]}{$_[1]} = $_[2];	3494	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1965	} else {	3495	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1966	$DB->{$_[0]} = $_[1];	3496	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1967	}
1968	db_dirty;
1969	}
1970		3497
1971	cf::global->attach (	3498	cf::cede_to_tick;
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3499	}
1976	);
1977	}
1978		3500
1979	#############################################################################	3501	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3502	next unless $info->{smooth};
1981		3503
1982	sub cfg_load {	3504	my $idx = cf::face::find $face
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3505	or next;
1984	or return;
1985		3506
1986	local $/;	3507	if (my $smooth = cf::face::find $info->{smooth}) {
1987	*CFG = YAML::Syck::Load <$fh>;	3508	cf::face::set_smooth $idx, $smooth;
		3509	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3510	} else {
		3511	error "smooth face '$info->{smooth}' not found for face '$face'";
		3512	}
1988		3513
		3514	cf::cede_to_tick;
		3515	}
		3516	}
		3517
		3518	{
		3519	my $anims = $facedata->{animinfo};
		3520
		3521	while (my ($anim, $info) = each %$anims) {
		3522	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3523	cf::cede_to_tick;
		3524	}
		3525
		3526	cf::anim::invalidate_all; # d'oh
		3527	}
		3528
		3529	{
		3530	my $res = $facedata->{resource};
		3531
		3532	while (my ($name, $info) = each %$res) {
		3533	if (defined $info->{type}) {
		3534	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3535
		3536	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3537	cf::face::set_type $idx, $info->{type};
		3538	} else {
		3539	$RESOURCE{$name} = $info; # unused
		3540	}
		3541
		3542	cf::cede_to_tick;
		3543	}
		3544	}
		3545
		3546	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3547
		3548	1
		3549	}
		3550
		3551	register_exticmd fx_want => sub {
		3552	my ($ns, $want) = @_;
		3553
		3554	while (my ($k, $v) = each %$want) {
		3555	$ns->fx_want ($k, $v);
		3556	}
		3557	};
		3558
		3559	sub load_resource_file($) {
		3560	my $guard = lock_acquire "load_resource_file";
		3561
		3562	my $status = load_resource_file_ $_[0];
		3563	get_slot 0.1, 100;
		3564	cf::arch::commit_load;
		3565
		3566	$status
		3567	}
		3568
		3569	sub reload_regions {
		3570	# HACK to clear player env face cache, we need some signal framework
		3571	# for this (global event?)
		3572	%ext::player_env::MUSIC_FACE_CACHE = ();
		3573
		3574	load_resource_file "$MAPDIR/regions"
		3575	or die "unable to load regions file\n";
		3576
		3577	for (cf::region::list) {
		3578	$_->{match} = qr/$_->{match}/
		3579	if exists $_->{match};
		3580	}
		3581	}
		3582
		3583	sub reload_facedata {
		3584	load_facedata "$DATADIR/facedata"
		3585	or die "unable to load facedata\n";
		3586	}
		3587
		3588	sub reload_archetypes {
		3589	load_resource_file "$DATADIR/archetypes"
		3590	or die "unable to load archetypes\n";
		3591	}
		3592
		3593	sub reload_treasures {
		3594	load_resource_file "$DATADIR/treasures"
		3595	or die "unable to load treasurelists\n";
		3596	}
		3597
		3598	sub reload_sound {
		3599	trace "loading sound config from $DATADIR/sound\n";
		3600
		3601	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3602
		3603	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3604	my $sound = $soundconf->{compat}[$_]
		3605	or next;
		3606
		3607	my $face = cf::face::find "sound/$sound->[1]";
		3608	cf::sound::set $sound->[0] => $face;
		3609	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3610	}
		3611
		3612	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3613	my $face = cf::face::find "sound/$v";
		3614	cf::sound::set $k => $face;
		3615	}
		3616	}
		3617
		3618	sub reload_resources {
		3619	trace "reloading resource files...\n";
		3620
		3621	reload_exp_table;
		3622	reload_materials;
		3623	reload_facedata;
		3624	reload_sound;
		3625	reload_archetypes;
		3626	reload_regions;
		3627	reload_treasures;
		3628
		3629	trace "finished reloading resource files\n";
		3630	}
		3631
		3632	sub reload_config {
		3633	trace "reloading config file...\n";
		3634
		3635	my $config = load_file "$CONFDIR/config";
		3636	utf8::decode $config;
		3637	*CFG = decode_yaml $config;
		3638
1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3639	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1990		3640
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3641	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3642	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3643
1994	if (exists $CFG{mlockall}) {	3644	if (exists $CFG{mlockall}) {
1995	eval {	3645	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3646	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3647	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3648	};
1999	warn $@ if $@;	3649	warn $@ if $@;
2000	}	3650	}
2001	}	3651	}
2002		3652
		3653	sub pidfile() {
		3654	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3655	or die "$PIDFILE: $!";
		3656	flock $fh, &Fcntl::LOCK_EX
		3657	or die "$PIDFILE: flock: $!";
		3658	$fh
		3659	}
		3660
		3661	# make sure only one server instance is running at any one time
		3662	sub atomic {
		3663	my $fh = pidfile;
		3664
		3665	my $pid = <$fh>;
		3666	kill 9, $pid if $pid > 0;
		3667
		3668	seek $fh, 0, 0;
		3669	print $fh $$;
		3670	}
		3671
		3672	sub main_loop {
		3673	trace "EV::loop starting\n";
		3674	if (1) {
		3675	EV::loop;
		3676	}
		3677	trace "EV::loop returned\n";
		3678	goto &main_loop unless $REALLY_UNLOOP;
		3679	}
		3680
2003	sub main {	3681	sub main {
		3682	cf::init_globals; # initialise logging
		3683
		3684	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3685	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3686	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3687	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3688
		3689	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3690
2004	# we must not ever block the main coroutine	3691	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3692	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3693	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3694	(async {
		3695	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3696	EV::loop EV::LOOP_ONESHOT;
		3697	})->prio (Coro::PRIO_MAX);
2008	};	3698	};
2009		3699
2010	cfg_load;	3700	evthread_start IO::AIO::poll_fileno;
2011	db_load;	3701
		3702	cf::sync_job {
		3703	cf::incloader::init ();
		3704
		3705	cf::init_anim;
		3706	cf::init_attackmess;
		3707	cf::init_dynamic;
		3708
		3709	cf::load_settings;
		3710
		3711	reload_resources;
		3712	reload_config;
		3713	db_init;
		3714
		3715	cf::init_uuid;
		3716	cf::init_signals;
		3717	cf::init_skills;
		3718
		3719	cf::init_beforeplay;
		3720
		3721	atomic;
		3722
2012	load_extensions;	3723	load_extensions;
2013	Event::loop;	3724
		3725	utime time, time, $RUNTIMEFILE;
		3726
		3727	# no (long-running) fork's whatsoever before this point(!)
		3728	use POSIX ();
		3729	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3730
		3731	cf::_post_init 0;
		3732	};
		3733
		3734	cf::object::thawer::errors_are_fatal 0;
		3735	info "parse errors in files are no longer fatal from this point on.\n";
		3736
		3737	my $free_main; $free_main = EV::idle sub {
		3738	undef $free_main;
		3739	undef &main; # free gobs of memory :)
		3740	};
		3741
		3742	goto &main_loop;
2014	}	3743	}
2015		3744
2016	#############################################################################	3745	#############################################################################
2017	# initialisation	3746	# initialisation and cleanup
2018		3747
		3748	# install some emergency cleanup handlers
		3749	BEGIN {
		3750	our %SIGWATCHER = ();
		3751	for my $signal (qw(INT HUP TERM)) {
		3752	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3753	cf::cleanup "SIG$signal";
		3754	};
		3755	}
		3756	}
		3757
		3758	sub write_runtime_sync {
		3759	my $t0 = AE::time;
		3760
		3761	# first touch the runtime file to show we are still running:
		3762	# the fsync below can take a very very long time.
		3763
		3764	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3765
		3766	my $guard = cf::lock_acquire "write_runtime";
		3767
		3768	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3769	or return;
		3770
		3771	my $value = $cf::RUNTIME + 90 + 10;
		3772	# 10 is the runtime save interval, for a monotonic clock
		3773	# 60 allows for the watchdog to kill the server.
		3774
		3775	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3776	and return;
		3777
		3778	# always fsync - this file is important
		3779	aio_fsync $fh
		3780	and return;
		3781
		3782	# touch it again to show we are up-to-date
		3783	aio_utime $fh, undef, undef;
		3784
		3785	close $fh
		3786	or return;
		3787
		3788	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3789	and return;
		3790
		3791	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3792
		3793	1
		3794	}
		3795
		3796	our $uuid_lock;
		3797	our $uuid_skip;
		3798
		3799	sub write_uuid_sync($) {
		3800	$uuid_skip ||= $_[0];
		3801
		3802	return if $uuid_lock;
		3803	local $uuid_lock = 1;
		3804
		3805	my $uuid = "$LOCALDIR/uuid";
		3806
		3807	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3808	or return;
		3809
		3810	my $value = uuid_seq uuid_cur;
		3811
		3812	unless ($value) {
		3813	info "cowardly refusing to write zero uuid value!\n";
		3814	return;
		3815	}
		3816
		3817	my $value = uuid_str $value + $uuid_skip;
		3818	$uuid_skip = 0;
		3819
		3820	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3821	and return;
		3822
		3823	# always fsync - this file is important
		3824	aio_fsync $fh
		3825	and return;
		3826
		3827	close $fh
		3828	or return;
		3829
		3830	aio_rename "$uuid~", $uuid
		3831	and return;
		3832
		3833	trace "uuid file written ($value).\n";
		3834
		3835	1
		3836
		3837	}
		3838
		3839	sub write_uuid($$) {
		3840	my ($skip, $sync) = @_;
		3841
		3842	$sync ? write_uuid_sync $skip
		3843	: async { write_uuid_sync $skip };
		3844	}
		3845
		3846	sub emergency_save() {
		3847	my $freeze_guard = cf::freeze_mainloop;
		3848
		3849	info "emergency_perl_save: enter\n";
		3850
		3851	# this is a trade-off: we want to be very quick here, so
		3852	# save all maps without fsync, and later call a global sync
		3853	# (which in turn might be very very slow)
		3854	local $USE_FSYNC = 0;
		3855
		3856	cf::sync_job {
		3857	cf::write_runtime_sync; # external watchdog should not bark
		3858
		3859	# use a peculiar iteration method to avoid tripping on perl
		3860	# refcount bugs in for. also avoids problems with players
		3861	# and maps saved/destroyed asynchronously.
		3862	info "emergency_perl_save: begin player save\n";
		3863	for my $login (keys %cf::PLAYER) {
		3864	my $pl = $cf::PLAYER{$login} or next;
		3865	$pl->valid or next;
		3866	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3867	$pl->save;
		3868	}
		3869	info "emergency_perl_save: end player save\n";
		3870
		3871	cf::write_runtime_sync; # external watchdog should not bark
		3872
		3873	info "emergency_perl_save: begin map save\n";
		3874	for my $path (keys %cf::MAP) {
		3875	my $map = $cf::MAP{$path} or next;
		3876	$map->valid or next;
		3877	$map->save;
		3878	}
		3879	info "emergency_perl_save: end map save\n";
		3880
		3881	cf::write_runtime_sync; # external watchdog should not bark
		3882
		3883	info "emergency_perl_save: begin database checkpoint\n";
		3884	BDB::db_env_txn_checkpoint $DB_ENV;
		3885	info "emergency_perl_save: end database checkpoint\n";
		3886
		3887	info "emergency_perl_save: begin write uuid\n";
		3888	write_uuid_sync 1;
		3889	info "emergency_perl_save: end write uuid\n";
		3890
		3891	cf::write_runtime_sync; # external watchdog should not bark
		3892
		3893	trace "emergency_perl_save: syncing database to disk";
		3894	BDB::db_env_txn_checkpoint $DB_ENV;
		3895
		3896	info "emergency_perl_save: starting sync\n";
		3897	IO::AIO::aio_sync sub {
		3898	info "emergency_perl_save: finished sync\n";
		3899	};
		3900
		3901	cf::write_runtime_sync; # external watchdog should not bark
		3902
		3903	trace "emergency_perl_save: flushing outstanding aio requests";
		3904	while (IO::AIO::nreqs || BDB::nreqs) {
		3905	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3906	}
		3907
		3908	cf::write_runtime_sync; # external watchdog should not bark
		3909	};
		3910
		3911	info "emergency_perl_save: leave\n";
		3912	}
		3913
		3914	sub post_cleanup {
		3915	my ($make_core) = @_;
		3916
		3917	IO::AIO::flush;
		3918
		3919	error Carp::longmess "post_cleanup backtrace"
		3920	if $make_core;
		3921
		3922	my $fh = pidfile;
		3923	unlink $PIDFILE if <$fh> == $$;
		3924	}
		3925
		3926	# a safer delete_package, copied from Symbol
		3927	sub clear_package($) {
		3928	my $pkg = shift;
		3929
		3930	# expand to full symbol table name if needed
		3931	unless ($pkg =~ /^main::.*::$/) {
		3932	$pkg = "main$pkg" if $pkg =~ /^::/;
		3933	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3934	$pkg .= '::' unless $pkg =~ /::$/;
		3935	}
		3936
		3937	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3938	my $stem_symtab = *{$stem}{HASH};
		3939
		3940	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3941	or return;
		3942
		3943	# clear all symbols
		3944	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3945	for my $name (keys %$leaf_symtab) {
		3946	_gv_clear *{"$pkg$name"};
		3947	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3948	}
		3949	}
		3950
2019	sub reload() {	3951	sub do_reload_perl() {
2020	# can/must only be called in main	3952	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3953	unless (in_main) {
2022	warn "can only reload from main coroutine\n";	3954	error "can only reload from main coroutine";
2023	return;	3955	return;
2024	}	3956	}
2025		3957
2026	warn "reloading...";	3958	return if $RELOAD++;
2027		3959
2028	my $guard = freeze_mainloop;	3960	my $t1 = AE::time;
		3961
		3962	while ($RELOAD) {
		3963	cf::get_slot 0.1, -1, "reload_perl";
		3964	info "perl_reload: reloading...";
		3965
		3966	trace "perl_reload: entering sync_job";
		3967
		3968	cf::sync_job {
2029	cf::emergency_save;	3969	#cf::emergency_save;
2030		3970
2031	eval {	3971	trace "perl_reload: cancelling all extension coros";
2032	# if anything goes wrong in here, we should simply crash as we already saved
2033
2034	# cancel all watchers
2035	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}
2038
2039	# cancel all extension coros
2040	$_->cancel for values %EXT_CORO;	3972	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3973	%EXT_CORO = ();
2042		3974
2043	# unload all extensions	3975	trace "perl_reload: removing commands";
2044	for (@exts) {	3976	%COMMAND = ();
2045	warn "unloading <$_>";
2046	unload_extension $_;
2047	}
2048		3977
2049	# unload all modules loaded from $LIBDIR	3978	trace "perl_reload: removing ext/exti commands";
2050	while (my ($k, $v) = each %INC) {	3979	%EXTCMD = ();
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3980	%EXTICMD = ();
2052		3981
2053	warn "removing <$k>";	3982	trace "perl_reload: unloading/nuking all extensions";
2054	delete $INC{$k};	3983	for my $pkg (@EXTS) {
		3984	trace "... unloading $pkg";
2055		3985
2056	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;
2058
2059	if (my $cb = $k->can ("unload_module")) {	3986	if (my $cb = $pkg->can ("unload")) {
		3987	eval {
2060	$cb->();	3988	$cb->($pkg);
		3989	1
		3990	} or error "$pkg unloaded, but with errors: $@";
		3991	}
		3992
		3993	trace "... clearing $pkg";
		3994	clear_package $pkg;
2061	}	3995	}
2062		3996
2063	Symbol::delete_package $k;	3997	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3998	while (my ($k, $v) = each %INC) {
		3999	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4000
		4001	trace "... unloading $k";
		4002	delete $INC{$k};
		4003
		4004	$k =~ s/\.pm$//;
		4005	$k =~ s/\//::/g;
		4006
		4007	if (my $cb = $k->can ("unload_module")) {
		4008	$cb->();
		4009	}
		4010
		4011	clear_package $k;
2064	}	4012	}
2065		4013
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	4014	trace "perl_reload: getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	4015	clear_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4016	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		4017
2074	# remove register_script_function callbacks	4018	trace "perl_reload: unloading cf.pm \"a bit\"";
2075	# TODO
2076
2077	# unload cf.pm "a bit"
2078	delete $INC{"cf.pm"};	4019	delete $INC{"cf.pm"};
		4020	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2079		4021
2080	# don't, removes xs symbols, too,	4022	# don't, removes xs symbols, too,
2081	# and global variables created in xs	4023	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	4024	#clear_package __PACKAGE__;
2083		4025
2084	# reload cf.pm	4026	info "perl_reload: unload completed, starting to reload now";
2085	warn "reloading cf.pm";	4027
		4028	trace "perl_reload: reloading cf.pm";
2086	require cf;	4029	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4030	cf::_connect_to_perl_1;
2088		4031
2089	# load config and database again	4032	trace "perl_reload: loading config and database again";
2090	cf::cfg_load;	4033	cf::reload_config;
2091	cf::db_load;
2092		4034
2093	# load extensions	4035	trace "perl_reload: loading extensions";
2094	warn "load extensions";
2095	cf::load_extensions;	4036	cf::load_extensions;
2096		4037
2097	# reattach attachments to objects	4038	if ($REATTACH_ON_RELOAD) {
2098	warn "reattach";	4039	trace "perl_reload: reattaching attachments to objects/players";
2099	_global_reattach;	4040	_global_reattach; # objects, sockets
		4041	trace "perl_reload: reattaching attachments to maps";
		4042	reattach $_ for values %MAP;
		4043	trace "perl_reload: reattaching attachments to players";
		4044	reattach $_ for values %PLAYER;
		4045	}
		4046
		4047	cf::_post_init 1;
		4048
		4049	trace "perl_reload: leaving sync_job";
		4050
		4051	1
		4052	} or do {
		4053	error $@;
		4054	cf::cleanup "perl_reload: error, exiting.";
		4055	};
		4056
		4057	--$RELOAD;
		4058	}
		4059
		4060	$t1 = AE::time - $t1;
		4061	info "perl_reload: completed in ${t1}s\n";
		4062	};
		4063
		4064	our $RELOAD_WATCHER; # used only during reload
		4065
		4066	sub reload_perl() {
		4067	# doing reload synchronously and two reloads happen back-to-back,
		4068	# coro crashes during coro_state_free->destroy here.
		4069
		4070	$RELOAD_WATCHER ||= cf::async {
		4071	Coro::AIO::aio_wait cache_extensions;
		4072
		4073	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4074	do_reload_perl;
		4075	undef $RELOAD_WATCHER;
		4076	};
2100	};	4077	};
2101
2102	if ($@) {
2103	warn $@;
2104	warn "error while reloading, exiting.";
2105	exit 1;
2106	}
2107
2108	warn "reloaded successfully";
2109	};
2110
2111	#############################################################################
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	4078	}
2153
2154	register "<global>", __PACKAGE__;
2155		4079
2156	register_command "reload" => sub {	4080	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	4081	my ($who, $arg) = @_;
2158		4082
2159	if ($who->flag (FLAG_WIZ)) {	4083	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	4084	$who->message ("reloading server.");
		4085	async {
		4086	$Coro::current->{desc} = "perl_reload";
		4087	reload_perl;
		4088	};
2163	}	4089	}
2164	};	4090	};
2165		4091
2166	unshift @INC, $LIBDIR;	4092	#############################################################################
2167		4093
2168	$TICK_WATCHER = Event->timer (	4094	my $bug_warning = 0;
2169	reentrant => 0,	4095
2170	prio => 0,	4096	our @WAIT_FOR_TICK;
2171	at => $NEXT_TICK || $TICK,	4097	our @WAIT_FOR_TICK_BEGIN;
2172	data => WF_AUTOCANCEL,	4098
2173	cb => sub {	4099	sub wait_for_tick() {
		4100	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4101
		4102	my $signal = new Coro::Signal;
		4103	push @WAIT_FOR_TICK, $signal;
		4104	$signal->wait;
		4105	}
		4106
		4107	sub wait_for_tick_begin() {
		4108	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4109
		4110	my $signal = new Coro::Signal;
		4111	push @WAIT_FOR_TICK_BEGIN, $signal;
		4112	$signal->wait;
		4113	}
		4114
		4115	sub tick {
		4116	if ($Coro::current != $Coro::main) {
		4117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4118	unless ++$bug_warning > 10;
		4119	return;
		4120	}
		4121
2174	cf::server_tick; # one server iteration	4122	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;
2177		4123
2178	# if we are delayed by four ticks or more, skip them all	4124	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		4125
2181	$TICK_WATCHER->at ($NEXT_TICK);	4126	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2182	$TICK_WATCHER->start;	4127	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2183	},	4128	Coro::async_pool {
2184	);	4129	$Coro::current->{desc} = "runtime saver";
2185
2186	IO::AIO::max_poll_time $TICK * 0.2;
2187
2188	Event->io (
2189	fd => IO::AIO::poll_fileno,
2190	poll => 'r',
2191	prio => 5,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,
2198	after => 0,
2199	interval => 10,
2200	cb => sub {
2201	(Coro::unblock_sub {
2202	write_runtime	4130	write_runtime_sync
2203	or warn "ERROR: unable to write runtime file: $!";	4131	or error "ERROR: unable to write runtime file: $!";
2204	})->();	4132	};
2205	},	4133	}
2206	);	4134
		4135	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4136	$sig->send;
		4137	}
		4138	while (my $sig = shift @WAIT_FOR_TICK) {
		4139	$sig->send;
		4140	}
		4141
		4142	$LOAD = ($NOW - $TICK_START) / $TICK;
		4143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4144
		4145	if (0) {
		4146	if ($NEXT_TICK) {
		4147	my $jitter = $TICK_START - $NEXT_TICK;
		4148	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4149	debug "jitter $JITTER\n";#d#
		4150	}
		4151	}
		4152	}
		4153
		4154	{
		4155	# configure BDB
		4156
		4157	BDB::min_parallel 16;
		4158	BDB::max_poll_reqs $TICK * 0.1;
		4159	$AnyEvent::BDB::WATCHER->priority (1);
		4160
		4161	unless ($DB_ENV) {
		4162	$DB_ENV = BDB::db_env_create;
		4163	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4164	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4165	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4166	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4167	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4168
		4169	cf::sync_job {
		4170	eval {
		4171	BDB::db_env_open
		4172	$DB_ENV,
		4173	$BDBDIR,
		4174	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4175	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4176	0666;
		4177
		4178	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4179	};
		4180
		4181	cf::cleanup "db_env_open(db): $@" if $@;
		4182	};
		4183	}
		4184
		4185	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4186	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4187	};
		4188	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4189	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4190	};
		4191	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4192	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4193	};
		4194	}
		4195
		4196	{
		4197	# configure IO::AIO
		4198
		4199	IO::AIO::min_parallel 8;
		4200	IO::AIO::max_poll_time $TICK * 0.1;
		4201	undef $AnyEvent::AIO::WATCHER;
		4202	}
		4203
		4204	our $_log_backtrace;
		4205	our $_log_backtrace_last;
		4206
		4207	sub _log_backtrace {
		4208	my ($msg, @addr) = @_;
		4209
		4210	$msg =~ s/\n$//;
		4211
		4212	if ($_log_backtrace_last eq $msg) {
		4213	LOG llevInfo, "[ABT] $msg\n";
		4214	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4215	# limit the # of concurrent backtraces
		4216	} elsif ($_log_backtrace < 2) {
		4217	$_log_backtrace_last = $msg;
		4218	++$_log_backtrace;
		4219	my $perl_bt = Carp::longmess $msg;
		4220	async {
		4221	$Coro::current->{desc} = "abt $msg";
		4222
		4223	my @bt = fork_call {
		4224	@addr = map { sprintf "%x", $_ } @addr;
		4225	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4226	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4227	or die "addr2line: $!";
		4228
		4229	my @funcs;
		4230	my @res = <$fh>;
		4231	chomp for @res;
		4232	while (@res) {
		4233	my ($func, $line) = splice @res, 0, 2, ();
		4234	push @funcs, "[$func] $line";
		4235	}
		4236
		4237	@funcs
		4238	};
		4239
		4240	LOG llevInfo, "[ABT] $perl_bt\n";
		4241	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4242	LOG llevInfo, "[ABT] $_\n" for @bt;
		4243	--$_log_backtrace;
		4244	};
		4245	} else {
		4246	LOG llevInfo, "[ABT] $msg\n";
		4247	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4248	}
		4249	}
		4250
		4251	# load additional modules
		4252	require "cf/$_.pm" for @EXTRA_MODULES;
		4253	cf::_connect_to_perl_2;
2207		4254
2208	END { cf::emergency_save }	4255	END { cf::emergency_save }
2209		4256
2210	1	4257	1
2211		4258

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