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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.560 by root, Fri Apr 22 02:03:12 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
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 (2); # 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
		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" };
32		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 $FREEZE;	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO;	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 $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
76	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::"} };
77		189
78	#############################################################################	190	#############################################################################
79		191
80	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
81		193
…		…
88	=item $cf::RUNTIME	200	=item $cf::RUNTIME
89		201
90	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
91	every server tick.	203	every server tick.
92		204
93	=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
94		208
95	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		213
98	=item $cf::NOW	214	=item $cf::NOW
99		215
100	The time of the last (current) server tick.	216	The time of the last (current) server tick.
101		217
102	=item $cf::TICK	218	=item $cf::TICK
103		219
104	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
105		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
106	=item %cf::CFG	232	=item %cf::CFG
107		233
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	235	from wherever your confdir points to.
110		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
111	=back	260	=back
112		261
113	=cut	262	=cut
114		263
115	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
116	*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 {
117	my $msg = join "", @_;	271	my $msg = join "", @_;
118	utf8::encode $msg;
119		272
120	$msg .= "\n"	273	$msg .= "\n"
121	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
122		275
123	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
124	};	277
125	}	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	};
126		294
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		302
134	# 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
135	# within the Safe compartment.	304	# within the Safe compartment.
136	for my $pkg (qw(	305	for my $pkg (qw(
137	cf::global cf::attachable	306	cf::global cf::attachable
138	cf::object cf::object::player	307	cf::object cf::object::player
139	cf::client cf::player	308	cf::client cf::player
140	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
141	cf::map cf::party cf::region	311	cf::party cf::region
142	)) {	312	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	314	}
146		315
147	$Event::DIED = sub {	316	$EV::DIED = sub {
148	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
149	};	318	};
150		319
151	my %ext_pkg;	320	#############################################################################
152	my @exts;	321
153	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
154		326
155	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
156		328
157	=over 4	329	=over 4
158		330
159	=cut	331	=item dumpval $ref
160		332
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
162		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
163	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
164		369
165	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
166		371
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
175		373
176	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
177		375
178	=cut	376	=cut
179		377
180	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		379
185	=item my $guard = cf::guard { BLOCK }	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
186		382
187	Run the given callback when the guard object gets destroyed (useful for	383	=item $ref = cf::decode_storable $scalar
188	coroutine cancellations).
189		384
190	You can call C<< ->cancel >> on the guard object to stop the block from	385	Same as Coro::Storable::thaw, so blocks.
191	being executed.
192		386
193	=cut	387	=cut
194		388
195	sub guard(&) {	389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198		390
199	sub cf::guard::cancel {	391	=item $ref = cf::decode_yaml $scalar
200	${$_[0]} = sub { };
201	}
202		392
203	sub cf::guard::DESTROY {	393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
204	${$_[0]}->();	394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
		399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
205	}	443	}
206		444
207	=item cf::lock_wait $string	445	=item cf::lock_wait $string
208		446
209	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
210		448
211	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
212		450
213	Wait until the given lock is available and then acquires it and returns	451	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
216	returned.	454	returned.
217		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
218	Lock names should begin with a unique identifier (for example, find_map	459	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	460	uses map_find and cf::map::load uses map_load).
220		461
221	=cut	462	=item $locked = cf::lock_active $string
222		463
223	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
224		469
225	sub lock_wait($) {	470	sub lock_wait($) {
226	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	472	}
234		473
235	sub lock_acquire($) {	474	sub lock_acquire($) {
236	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
237		477
238	# wait, to be sure we are not locked	478	sub lock_active($) {
239	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
		480	}
240		481
241	$LOCK{$key} = [];	482	sub freeze_mainloop {
		483	tick_inhibit_inc;
242		484
243	cf::guard {	485	&Guard::guard (\&tick_inhibit_dec);
244	# wake up all waiters, to be on the safe side	486	}
245	$_->ready for @{ delete $LOCK{$key} };	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($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
246	}	556	}
		557	};
		558
		559	sub get_slot($;$$) {
		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	$sig->wait;
247	}	572	}
248		573
249	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
250		575
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	576	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
253		579
254	=cut	580	=cut
255		581
256	sub async(&) {	582	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		583
265	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
266		585
267	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
270		590
271	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
274	fast or be very important.	594	fast or be very important.
…		…
276	=cut	596	=cut
277		597
278	sub sync_job(&) {	598	sub sync_job(&) {
279	my ($job) = @_;	599	my ($job) = @_;
280		600
281	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
282	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
284		606
285	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	608
287	local $FREEZE = 1;	609	my $freeze_guard = freeze_mainloop;
288		610
289	my $busy = 1;	611	my $busy = 1;
290	my @res;	612	my @res;
291		613
292	(Coro::async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	616	@res = eval { $job->() };
294	warn $@ if $@;	617	error $@ if $@;
295	undef $busy;	618	undef $busy;
296	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
297		620
298	while ($busy) {	621	while ($busy) {
		622	if (Coro::nready) {
299	Coro::cede_notself;	623	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
301	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
302		632
303	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
304	} else {	634	} else {
305	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
306		636
307	$job->()	637	$job->()
308	}	638	}
309	}	639	}
310		640
311	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
312		642
313	Creates and returns a new coro. This coro is automcatially being canceled	643	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
315		645
316	=cut	646	=cut
317		647
318	sub coro(&) {	648	sub async_ext(&) {
319	my $cb = shift;	649	my $cb = shift;
320		650
321	my $coro = &cf::async ($cb);	651	my $coro = &Coro::async ($cb);
322		652
323	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
325	});	655	});
326	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
327		657
328	$coro	658	$coro
329	}	659	}
330		660
331	sub write_runtime {	661	=item fork_call { }, @args
332	my $runtime = cf::localdir . "/runtime";
333		662
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
335	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.
336		667
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		669
341	aio_fsync $fh	670	sub post_fork {
342	and return;	671	reset_signals;
		672	}
343		673
344	close $fh	674	sub fork_call(&@) {
345	or return;	675	my ($cb, @args) = @_;
346		676
347	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
348	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
349		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
350	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 => $type });
351	}	864	}
352		865
353	=back	866	=back
354		867
355	=cut	868	=cut
356		869
357	#############################################################################	870	#############################################################################
358		871
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476
477	#############################################################################
478
479	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
480		873
481	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
482	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")
483	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
484		877
485	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>
486	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
487	crossfire+).	880	Deliantra).
488		881
489	=over 4	882	=over 4
490		883
491	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
492		885
…		…
536	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
537		930
538	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
539	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
540		933
541	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
542	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.
543		936
544	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
545		938
546	=over 4	939	=over 4
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	1000	our @CB_MAP = ();
608		1001
609	my %attachment;	1002	my %attachment;
610		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
611	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
613		1012
614	use sort 'stable';	1013	use sort 'stable';
615		1014
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
650		1049
651	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		1054
656	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
658		1057
659	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
664		1063
665	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
666	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
667		1066
668	} elsif (ref $type) {	1067	} elsif (ref $type) {
669	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
670		1069
671	} else {	1070	} else {
672	shift @arg;	1071	shift @arg;
673	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
674	}	1073	}
675	}	1074	}
676	}	1075	}
677		1076
678	sub _object_attach {	1077	sub _object_attach {
…		…
688	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
689	}	1088	}
690		1089
691	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
692	} else {	1091	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
694	}	1093	}
695		1094
696	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
697	}	1096	}
698		1097
…		…
700	if (ref $_[0]) {	1099	if (ref $_[0]) {
701	_object_attach @_;	1100	_object_attach @_;
702	} else {	1101	} else {
703	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
704	}	1103	}
		1104	_recalc_want;
705	};	1105	};
706		1106
707	# all those should be optimised	1107	# all those should be optimised
708	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
713	reattach ($obj);	1113	reattach ($obj);
714	} else {	1114	} else {
715	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
716	}	1116	}
		1117	_recalc_want;
717	};	1118	};
718		1119
719	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
721		1122
…		…
736	";	1137	";
737	die if $@;	1138	die if $@;
738	}	1139	}
739		1140
740	our $override;	1141	our $override;
741	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?
742		1143
743	sub override {	1144	sub override {
744	$override = 1;	1145	$override = 1;
745	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
746	}	1147	}
747		1148
748	sub do_invoke {	1149	sub do_invoke {
749	my $event = shift;	1150	my $event = shift;
750	my $callbacks = shift;	1151	my $callbacks = shift;
751		1152
752	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
753		1154
754	local $override;	1155	local $override;
755		1156
756	for (@$callbacks) {	1157	for (@$callbacks) {
757	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
758		1159
759	if ($@) {	1160	if ($@) {
760	warn "$@";
761	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
762	override;	1162	override;
763	}	1163	}
764		1164
765	return 1 if $override;	1165	return 1 if $override;
766	}	1166	}
767		1167
768	0	1168	0
769	}	1169	}
770		1170
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1172
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1174
775	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
776		1176
777	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
778	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
779	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1180
781	=back	1181	=back
782		1182
783	=cut	1183	=cut
784		1184
785	#############################################################################	1185	#############################################################################
786	# 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	}
787		1229
788	sub reattach {	1230	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
790	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
791		1236
792	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
793		1238
794	@$registry = ();	1239	@$registry = ();
795		1240
…		…
800	for (@$attach) {	1245	for (@$attach) {
801	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
802	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
803	}	1248	}
804	} else {	1249	} else {
805	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
806	}	1251	}
807	}	1252	}
808	}	1253	}
809		1254
810	cf::attachable->attach (	1255	cf::attachable->attach (
811	prio => -1000000,	1256	prio => -1000000,
812	on_instantiate => sub {	1257	on_instantiate => sub {
813	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
814		1259
815	$data = from_json $data;	1260	$data = decode_json $data;
816		1261
817	for (@$data) {	1262	for (@$data) {
818	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
819		1264
820	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1281	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
838		1283
839	sync_job {	1284	sync_job {
840	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
843		1290
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
846	aio_write $fh, 0, (length $$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;
847	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
848	close $fh;	1298	aio_close $fh;
849		1299
850	if (@$objs) {	1300	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	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;
855	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
856	close $fh;	1309	aio_close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
858	}	1311	}
859	} else {	1312	} else {
860	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
861	}	1314	}
862		1315
863	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
864	} else {	1320	} else {
865	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
866	}	1322	}
867	} else {	1323	} else {
868	aio_unlink $filename;	1324	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
870	}	1326	}
871	}	1327	};
872	}	1328	}
873		1329
874	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
876		1332
…		…
888	or return;	1344	or return;
889		1345
890	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
892	or return;	1348	or return;
		1349
893	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
894	}	1352	}
895		1353
		1354	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
898	return ($data, $av);	1359	($data, $av)
899	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
900		1367
901	#############################################################################	1368	#############################################################################
902	# command handling &c	1369	# command handling &c
903		1370
904	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1385	}
919		1386
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1388
922	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.
923		1394
924	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
925	called.	1396	called.
926		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
927	=cut	1409	=cut
928		1410
929	sub register_extcmd {	1411	sub register_extcmd {
930	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
931		1413
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
936	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
937		1424
938	cf::player->attach (	1425	cf::player->attach (
939	on_command => sub {	1426	on_unknown_command => sub {
940	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
941		1428
942	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
943	or return;	1430	or return;
944		1431
…		…
949	cf::override;	1436	cf::override;
950	},	1437	},
951	on_extcmd => sub {	1438	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
953		1440
954	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1442
956	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
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
962	} else {	1458	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1460	}
965		1461
966	cf::override;	1462	cf::override;
967	},	1463	},
968	);	1464	);
969		1465
970	sub register {	1466	# "readahead" all extensions
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1467	sub cache_extensions {
977	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
978		1469
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
980	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
981	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984
985	warn "loading '$path' into '$pkg'\n";
986
987	open my $fh, "<:utf8", $path
988	or die "$path: $!";
989
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }
1019
1020	# remove commands
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}	1473	}
1029	}	1474	};
1030		1475
1031	# remove extcmds	1476	$grp
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	1477	}
1045		1478
1046	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1047	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	1486	next unless -r $path;
1049	eval {	1487
1050	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	}
1051	1	1551	}
1052	} 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	}
1053	}	1562	};
1054	}	1563	}
1055		1564
1056	#############################################################################	1565	#############################################################################
1057	# load/save/clean perl data associated with a map
1058		1566
1059	*cf::mapsupport::on_clean = sub {	1567	=back
		1568
		1569	=head2 CORE EXTENSIONS
		1570
		1571	Functions and methods that extend core deliantra objects.
		1572
		1573	=cut
		1574
		1575	package cf::player;
		1576
		1577	use Coro::AIO;
		1578
		1579	=head3 cf::player
		1580
		1581	=over 4
		1582
		1583	=item cf::player::num_playing
		1584
		1585	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1586
		1587	=cut
		1588
		1589	sub num_playing {
		1590	scalar grep
		1591	$_->ob->map
		1592	&& !$_->hidden
		1593	&& !$_->ob->flag (cf::FLAG_WIZ),
		1594	cf::player::list
		1595	}
		1596
		1597	=item cf::player::find $login
		1598
		1599	Returns the given player object, loading it if necessary (might block).
		1600
		1601	=cut
		1602
		1603	sub playerdir($) {
		1604	"$PLAYERDIR/"
		1605	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1606	}
		1607
		1608	sub path($) {
		1609	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1610
		1611	(playerdir $login) . "/playerdata"
		1612	}
		1613
		1614	sub find_active($) {
		1615	$cf::PLAYER{$_[0]}
		1616	and $cf::PLAYER{$_[0]}->active
		1617	and $cf::PLAYER{$_[0]}
		1618	}
		1619
		1620	sub exists($) {
1060	my ($map) = @_;	1621	my ($login) = @_;
1061		1622
1062	my $path = $map->tmpname;	1623	$cf::PLAYER{$login}
1063	defined $path or return;	1624	or !aio_stat path $login
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}	1625	}
1076		1626
1077	# TODO: compatibility cruft, remove when no longer needed	1627	sub find($) {
		1628	return $cf::PLAYER{$_[0]} || do {
		1629	my $login = $_[0];
		1630
		1631	my $guard = cf::lock_acquire "user_find:$login";
		1632
		1633	$cf::PLAYER{$_[0]} || do {
		1634	# rename old playerfiles to new ones
		1635	#TODO: remove when no longer required
		1636	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1637	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1638	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1639	aio_unlink +(playerdir $login) . "/$login.pl";
		1640
		1641	my $f = new_from_file cf::object::thawer path $login
		1642	or return;
		1643
		1644	my $pl = cf::player::load_pl $f
		1645	or return;
		1646
		1647	local $cf::PLAYER_LOADING{$login} = $pl;
		1648	$f->resolve_delayed_derefs;
		1649	$cf::PLAYER{$login} = $pl
		1650	}
		1651	}
		1652	}
		1653
1078	cf::player->attach (	1654	cf::player->attach (
1079	on_load => sub {	1655	on_load => sub {
1080	my ($pl, $path) = @_;	1656	my ($pl, $path) = @_;
1081		1657
1082	for my $o (all_objects $pl->ob) {	1658	# restore slots saved in save, below
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1659	my $slots = delete $pl->{_slots};
1084	$o->set_ob_key_value ("_perl_data");
1085		1660
1086	%$o = %{ Storable::thaw pack "H*", $value };	1661	$pl->ob->current_weapon ($slots->[0]);
1087	}	1662	$pl->combat_ob ($slots->[1]);
1088	}	1663	$pl->ranged_ob ($slots->[2]);
1089	},	1664	},
1090	);	1665	);
1091		1666
1092	#############################################################################	1667	sub save($) {
		1668	my ($pl) = @_;
1093		1669
1094	=head2 CORE EXTENSIONS	1670	return if $pl->{deny_save};
1095		1671
1096	Functions and methods that extend core crossfire objects.	1672	my $path = path $pl;
		1673	my $guard = cf::lock_acquire "user_save:$path";
1097		1674
1098	=head3 cf::player	1675	return if $pl->{deny_save};
		1676
		1677	aio_mkdir playerdir $pl, 0770;
		1678	$pl->{last_save} = $cf::RUNTIME;
		1679
		1680	cf::get_slot 0.01;
		1681
		1682	# save slots, to be restored later
		1683	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1684
		1685	$pl->save_pl ($path);
		1686	cf::cede_to_tick;
		1687	}
		1688
		1689	sub new($) {
		1690	my ($login) = @_;
		1691
		1692	my $self = create;
		1693
		1694	$self->ob->name ($login);
		1695	$self->{deny_save} = 1;
		1696
		1697	$cf::PLAYER{$login} = $self;
		1698
		1699	$self
		1700	}
		1701
		1702	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1703
		1704	=cut
		1705
		1706	sub send_msg {
		1707	my $ns = shift->ns
		1708	or return;
		1709	$ns->send_msg (@_);
		1710	}
		1711
		1712	=item $pl->quit_character
		1713
		1714	Nukes the player without looking back. If logged in, the connection will
		1715	be destroyed. May block for a long time.
		1716
		1717	=cut
		1718
		1719	sub quit_character {
		1720	my ($pl) = @_;
		1721
		1722	my $name = $pl->ob->name;
		1723
		1724	$pl->{deny_save} = 1;
		1725	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1726
		1727	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1728	$pl->deactivate;
		1729
		1730	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1731	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1732	ext::highscore::check ($pl->ob);
		1733
		1734	$pl->ns->destroy if $pl->ns;
		1735
		1736	my $path = playerdir $pl;
		1737	my $temp = "$path~$cf::RUNTIME~deleting~";
		1738	aio_rename $path, $temp;
		1739	delete $cf::PLAYER{$pl->ob->name};
		1740	$pl->destroy;
		1741
		1742	my $prefix = qr<^~\Q$name\E/>;
		1743
		1744	# nuke player maps
		1745	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1746
		1747	IO::AIO::aio_rmtree $temp;
		1748	}
		1749
		1750	=item $pl->kick
		1751
		1752	Kicks a player out of the game. This destroys the connection.
		1753
		1754	=cut
		1755
		1756	sub kick {
		1757	my ($pl, $kicker) = @_;
		1758
		1759	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1760	$pl->killer ("kicked");
		1761	$pl->ns->destroy;
		1762	}
		1763
		1764	=item cf::player::list_logins
		1765
		1766	Returns am arrayref of all valid playernames in the system, can take a
		1767	while and may block, so not sync_job-capable, ever.
		1768
		1769	=cut
		1770
		1771	sub list_logins {
		1772	my $dirs = aio_readdir $PLAYERDIR
		1773	or return [];
		1774
		1775	my @logins;
		1776
		1777	for my $login (@$dirs) {
		1778	my $path = path $login;
		1779
		1780	# a .pst is a dead give-away for a valid player
		1781	# if no pst file found, open and chekc for blocked users
		1782	if (aio_stat "$path.pst") {
		1783	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1784	aio_read $fh, 0, 512, my $buf, 0 or next;
		1785	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1786	}
		1787
		1788	utf8::decode $login;
		1789	push @logins, $login;
		1790	}
		1791
		1792	\@logins
		1793	}
		1794
		1795	=item $player->maps
		1796
		1797	=item cf::player::maps $login
		1798
		1799	Returns an arrayref of map paths that are private for this
		1800	player. May block.
		1801
		1802	=cut
		1803
		1804	sub maps($) {
		1805	my ($pl) = @_;
		1806
		1807	$pl = ref $pl ? $pl->ob->name : $pl;
		1808
		1809	my $files = aio_readdir playerdir $pl
		1810	or return;
		1811
		1812	my @paths;
		1813
		1814	for (@$files) {
		1815	utf8::decode $_;
		1816	next if /\.(?:pl|pst)$/;
		1817	next unless /^$PATH_SEP/o;
		1818
		1819	push @paths, cf::map::normalise "~$pl/$_";
		1820	}
		1821
		1822	\@paths
		1823	}
		1824
		1825	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1826
		1827	Expand deliantra pod fragments into protocol xml.
		1828
		1829	=item $player->ext_reply ($msgid, @msg)
		1830
		1831	Sends an ext reply to the player.
		1832
		1833	=cut
		1834
		1835	sub ext_reply($$@) {
		1836	my ($self, $id, @msg) = @_;
		1837
		1838	$self->ns->ext_reply ($id, @msg)
		1839	}
		1840
		1841	=item $player->ext_msg ($type, @msg)
		1842
		1843	Sends an ext event to the client.
		1844
		1845	=cut
		1846
		1847	sub ext_msg($$@) {
		1848	my ($self, $type, @msg) = @_;
		1849
		1850	$self->ns->ext_msg ($type, @msg);
		1851	}
		1852
		1853	=head3 cf::region
1099		1854
1100	=over 4	1855	=over 4
1101		1856
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut	1857	=cut
1107		1858
1108	sub cf::player::exists($) {	1859	package cf::region;
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112		1860
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1861	=item cf::region::find_by_path $path
1114		1862
1115	Sends an ext reply to the player.	1863	Tries to decuce the likely region for a map knowing only its path.
1116		1864
1117	=cut	1865	=cut
1118		1866
1119	sub cf::player::ext_reply($$$%) {	1867	sub find_by_path($) {
1120	my ($self, $id, %msg) = @_;	1868	my ($path) = @_;
1121		1869
1122	$msg{msgid} = $id;	1870	$path =~ s/^~[^\/]*//; # skip ~login
1123		1871
1124	$self->send ("ext " . to_json \%msg);	1872	my ($match, $specificity);
		1873
		1874	for my $region (list) {
		1875	if ($region->{match} && $path =~ $region->{match}) {
		1876	($match, $specificity) = ($region, $region->specificity)
		1877	if $region->specificity > $specificity;
		1878	}
		1879	}
		1880
		1881	$match
1125	}	1882	}
1126		1883
1127	=back	1884	=back
1128
1129		1885
1130	=head3 cf::map	1886	=head3 cf::map
1131		1887
1132	=over 4	1888	=over 4
1133		1889
…		…
1136	package cf::map;	1892	package cf::map;
1137		1893
1138	use Fcntl;	1894	use Fcntl;
1139	use Coro::AIO;	1895	use Coro::AIO;
1140		1896
		1897	use overload
		1898	'""' => \&as_string,
		1899	fallback => 1;
		1900
1141	our $MAX_RESET = 7200;	1901	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1902	our $DEFAULT_RESET = 3000;
1143		1903
1144	sub generate_random_map {	1904	sub generate_random_map {
		1905	my ($self, $rmp) = @_;
		1906
		1907	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1908
		1909	$self->_create_random_map ($rmp);
		1910	}
		1911
		1912	=item cf::map->register ($regex, $prio)
		1913
		1914	Register a handler for the map path matching the given regex at the
		1915	givne priority (higher is better, built-in handlers have priority 0, the
		1916	default).
		1917
		1918	=cut
		1919
		1920	sub register {
		1921	my (undef, $regex, $prio) = @_;
		1922	my $pkg = caller;
		1923
		1924	push @{"$pkg\::ISA"}, __PACKAGE__;
		1925
		1926	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1927	}
		1928
		1929	# also paths starting with '/'
		1930	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1931
		1932	sub thawer_merge {
		1933	my ($self, $merge) = @_;
		1934
		1935	# we have to keep some variables in memory intact
		1936	local $self->{path};
		1937	local $self->{load_path};
		1938
		1939	$self->SUPER::thawer_merge ($merge);
		1940	}
		1941
		1942	sub normalise {
1145	my ($path, $rmp) = @_;	1943	my ($path, $base) = @_;
1146		1944
1147	# mit "rum" bekleckern, nicht	1945	$path = "$path"; # make sure it's a string
1148	cf::map::_create_random_map	1946
		1947	$path =~ s/\.map$//;
		1948
		1949	# map plan:
		1950	#
		1951	# /! non-realised random map exit (special hack!)
		1952	# {... are special paths that are not being touched
		1953	# ?xxx/... are special absolute paths
		1954	# ?random/... random maps
		1955	# /... normal maps
		1956	# ~user/... per-player map of a specific user
		1957
		1958	$path =~ s/$PATH_SEP/\//go;
		1959
		1960	# treat it as relative path if it starts with
		1961	# something that looks reasonable
		1962	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1963	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1964
		1965	$base =~ s{[^/]+/?$}{};
		1966	$path = "$base/$path";
		1967	}
		1968
		1969	for ($path) {
		1970	redo if s{/\.?/}{/};
		1971	redo if s{/[^/]+/\.\./}{/};
		1972	}
		1973
1149	$path,	1974	$path
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})
1161	}	1975	}
1162		1976
1163	# and all this just because we cannot iterate over	1977	sub new_from_path {
1164	# all maps in C++...	1978	my (undef, $path, $base) = @_;
1165	sub change_all_map_light {	1979
		1980	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1981
		1982	$path = normalise $path, $base;
		1983
		1984	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1985	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1986	my $self = bless cf::map::new, $pkg;
		1987	$self->{path} = $path; $self->path ($path);
		1988	$self->init; # pass $1 etc.
		1989	return $self;
		1990	}
		1991	}
		1992
		1993	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1994	()
		1995	}
		1996
		1997	sub init {
1166	my ($change) = @_;	1998	my ($self) = @_;
1167		1999
1168	$_->change_map_light ($change)	2000	$self
1169	for grep $_->outdoor, values %cf::MAP;
1170	}	2001	}
1171		2002
		2003	sub as_string {
		2004	my ($self) = @_;
		2005
		2006	"$self->{path}"
		2007	}
		2008
		2009	# the displayed name, this is a one way mapping
		2010	sub visible_name {
		2011	&as_string
		2012	}
		2013
		2014	# the original (read-only) location
		2015	sub load_path {
		2016	my ($self) = @_;
		2017
		2018	"$MAPDIR/$self->{path}.map"
		2019	}
		2020
		2021	# the temporary/swap location
		2022	sub save_path {
		2023	my ($self) = @_;
		2024
		2025	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2026	"$TMPDIR/$path.map"
		2027	}
		2028
		2029	# the unique path, undef == no special unique path
		2030	sub uniq_path {
		2031	my ($self) = @_;
		2032
		2033	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2034	"$UNIQUEDIR/$path"
		2035	}
		2036
		2037	sub decay_objects {
		2038	my ($self) = @_;
		2039
		2040	return if $self->{deny_reset};
		2041
		2042	$self->do_decay_objects;
		2043	}
		2044
		2045	sub unlink_save {
		2046	my ($self) = @_;
		2047
		2048	utf8::encode (my $save = $self->save_path);
		2049	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2050	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2051	}
		2052
1172	sub try_load_header($) {	2053	sub load_header_from($) {
1173	my ($path) = @_;	2054	my ($self, $path) = @_;
1174		2055
1175	utf8::encode $path;	2056	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	2057	my $f = new_from_file cf::object::thawer $path
1177	or return;	2058	or return;
1178		2059
1179	my $map = cf::map::new	2060	$self->_load_header ($f)
1180	or return;	2061	or return;
1181		2062
1182	$map->load_header ($path)	2063	local $MAP_LOADING{$self->{path}} = $self;
		2064	$f->resolve_delayed_derefs;
		2065
		2066	$self->{load_path} = $path;
		2067
		2068	1
		2069	}
		2070
		2071	sub load_header_orig {
		2072	my ($self) = @_;
		2073
		2074	$self->load_header_from ($self->load_path)
		2075	}
		2076
		2077	sub load_header_temp {
		2078	my ($self) = @_;
		2079
		2080	$self->load_header_from ($self->save_path)
		2081	}
		2082
		2083	sub prepare_temp {
		2084	my ($self) = @_;
		2085
		2086	$self->last_access ((delete $self->{last_access})
		2087	|| $cf::RUNTIME); #d#
		2088	# safety
		2089	$self->{instantiate_time} = $cf::RUNTIME
		2090	if $self->{instantiate_time} > $cf::RUNTIME;
		2091	}
		2092
		2093	sub prepare_orig {
		2094	my ($self) = @_;
		2095
		2096	$self->{load_original} = 1;
		2097	$self->{instantiate_time} = $cf::RUNTIME;
		2098	$self->last_access ($cf::RUNTIME);
		2099	$self->instantiate;
		2100	}
		2101
		2102	sub load_header {
		2103	my ($self) = @_;
		2104
		2105	if ($self->load_header_temp) {
		2106	$self->prepare_temp;
		2107	} else {
		2108	$self->load_header_orig
1183	or return;	2109	or return;
		2110	$self->prepare_orig;
		2111	}
1184		2112
1185	$map->{load_path} = $path;	2113	$self->{deny_reset} = 1
		2114	if $self->no_reset;
1186		2115
1187	$map	2116	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	2117	unless $self->default_region;
1189		2118
		2119	1
		2120	}
		2121
1190	sub find_map;	2122	sub find;
1191	sub find_map {	2123	sub find {
1192	my ($path, $origin) = @_;	2124	my ($path, $origin) = @_;
1193		2125
1194	#warn "find_map<$path,$origin>\n";#d#	2126	cf::cede_to_tick;
1195		2127
1196	$path = new cf::path $path, $origin && $origin->path;	2128	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		2129
1199	cf::lock_wait "map_find:$key";	2130	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1200
1201	$cf::MAP{$key} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	2131	my $guard2 = cf::lock_acquire "map_find:$path";
1203		2132
1204	# do it the slow way	2133	$cf::MAP{$path} || do {
1205	my $map = try_load_header $path->save_path;	2134	my $map = new_from_path cf::map $path
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	2135	or return;
1221		2136
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	2137	$map->{last_save} = $cf::RUNTIME;
1234		2138
1235	if ($map->should_reset) {	2139	$map->load_header
		2140	or return;
		2141
		2142	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2143	# doing this can freeze the server in a sync job, obviously
		2144	#$cf::WAIT_FOR_TICK->wait;
		2145	undef $guard2;
		2146	undef $guard1;
1236	$map->reset;	2147	$map->reset;
1237	undef $guard;	2148	return find $path;
1238	$map = find_map $path
1239	or return;
1240	}	2149	}
1241		2150
1242	$cf::MAP{$key} = $map	2151	$cf::MAP{$path} = $map
1243	}	2152	}
1244	}	2153	}
		2154
		2155	sub pre_load { }
		2156	#sub post_load { } # XS
1245		2157
1246	sub load {	2158	sub load {
1247	my ($self) = @_;	2159	my ($self) = @_;
1248		2160
		2161	local $self->{deny_reset} = 1; # loading can take a long time
		2162
1249	my $path = $self->{path};	2163	my $path = $self->{path};
		2164
		2165	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2166	my $guard = cf::lock_acquire "map_data:$path";
1251		2167
		2168	return unless $self->valid;
1252	return if $self->in_memory != cf::MAP_SWAPPED;	2169	return unless $self->in_memory == cf::MAP_SWAPPED;
1253		2170
1254	$self->in_memory (cf::MAP_LOADING);	2171	$self->in_memory (cf::MAP_LOADING);
1255		2172
1256	$self->alloc;	2173	$self->alloc;
1257	$self->load_objects ($self->{load_path}, 1)	2174
		2175	$self->pre_load;
		2176	cf::cede_to_tick;
		2177
		2178	my $f = new_from_file cf::object::thawer $self->{load_path};
		2179	$f->skip_block;
		2180	$self->_load_objects ($f)
1258	or return;	2181	or return;
1259		2182
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2183	$self->post_load_original
1261	if delete $self->{load_original};	2184	if delete $self->{load_original};
1262		2185
1263	if (my $uniq = $path->uniq_path) {	2186	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	2187	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	2188	unless (aio_stat $uniq) {
		2189	if (my $f = new_from_file cf::object::thawer $uniq) {
1266	$self->clear_unique_items;	2190	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	2191	$self->_load_objects ($f);
		2192	$f->resolve_delayed_derefs;
		2193	}
1268	}	2194	}
1269	}	2195	}
1270		2196
		2197	$f->resolve_delayed_derefs;
		2198
		2199	cf::cede_to_tick;
1271	# now do the right thing for maps	2200	# now do the right thing for maps
1272	$self->link_multipart_objects;	2201	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	2202	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	2203	unless $self->difficulty;
		2204	cf::cede_to_tick;
		2205
		2206	unless ($self->{deny_activate}) {
		2207	$self->decay_objects;
		2208	$self->fix_auto_apply;
		2209	$self->update_buttons;
		2210	cf::cede_to_tick;
1284	$self->activate;	2211	$self->activate;
1285	}	2212	}
1286		2213
		2214	$self->{last_save} = $cf::RUNTIME;
		2215	$self->last_access ($cf::RUNTIME);
		2216
1287	$self->in_memory (cf::MAP_IN_MEMORY);	2217	$self->in_memory (cf::MAP_ACTIVE);
1288	}	2218	}
1289		2219
1290	sub load_map_sync {	2220	$self->post_load;
		2221
		2222	1
		2223	}
		2224
		2225	# customize the map for a given player, i.e.
		2226	# return the _real_ map. used by e.g. per-player
		2227	# maps to change the path to ~playername/mappath
		2228	sub customise_for {
		2229	my ($self, $ob) = @_;
		2230
		2231	return find "~" . $ob->name . "/" . $self->{path}
		2232	if $self->per_player;
		2233
		2234	# return find "?party/" . $ob->name . "/" . $self->{path}
		2235	# if $self->per_party;
		2236
		2237	$self
		2238	}
		2239
		2240	# find and load all maps in the 3x3 area around a map
		2241	sub load_neighbours {
		2242	my ($map) = @_;
		2243
		2244	my @neigh; # diagonal neighbours
		2245
		2246	for (0 .. 3) {
		2247	my $neigh = $map->tile_path ($_)
		2248	or next;
		2249	$neigh = find $neigh, $map
		2250	or next;
		2251	$neigh->load;
		2252
		2253	# now find the diagonal neighbours
		2254	push @neigh,
		2255	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2256	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2257	}
		2258
		2259	for (grep defined $_->[0], @neigh) {
		2260	my ($path, $origin) = @$_;
		2261	my $neigh = find $path, $origin
		2262	or next;
		2263	$neigh->load;
		2264	}
		2265	}
		2266
		2267	sub find_sync {
1291	my ($path, $origin) = @_;	2268	my ($path, $origin) = @_;
1292		2269
1293	#warn "load_map_sync<$path, $origin>\n";#d#	2270	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2271	if $Coro::current == $Coro::main;
1294		2272
1295	cf::sync_job {	2273	find $path, $origin
1296	my $map = cf::map::find_map $path, $origin	2274	}
1297	or return;	2275
		2276	sub do_load_sync {
		2277	my ($map) = @_;
		2278
		2279	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2280	if $Coro::current == $Coro::main;
		2281
1298	$map->load;	2282	$map->load;
1299	$map	2283	}
		2284
		2285	our %MAP_PREFETCH;
		2286	our $MAP_PREFETCHER = undef;
		2287
		2288	sub find_async {
		2289	my ($path, $origin, $load) = @_;
		2290
		2291	$path = normalise $path, $origin && $origin->{path};
		2292
		2293	if (my $map = $cf::MAP{$path}) {
		2294	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2295	}
		2296
		2297	$MAP_PREFETCH{$path} |= $load;
		2298
		2299	$MAP_PREFETCHER ||= cf::async {
		2300	$Coro::current->{desc} = "map prefetcher";
		2301
		2302	while (%MAP_PREFETCH) {
		2303	while (my ($k, $v) = each %MAP_PREFETCH) {
		2304	if (my $map = find $k) {
		2305	$map->load if $v;
		2306	}
		2307
		2308	delete $MAP_PREFETCH{$k};
		2309	}
		2310	}
		2311	undef $MAP_PREFETCHER;
		2312	};
		2313	$MAP_PREFETCHER->prio (6);
		2314
		2315	()
		2316	}
		2317
		2318	# common code, used by both ->save and ->swapout
		2319	sub _save {
		2320	my ($self) = @_;
		2321
		2322	$self->{last_save} = $cf::RUNTIME;
		2323
		2324	return unless $self->dirty;
		2325
		2326	my $save = $self->save_path; utf8::encode $save;
		2327	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2328
		2329	$self->{load_path} = $save;
		2330
		2331	return if $self->{deny_save};
		2332
		2333	local $self->{last_access} = $self->last_access;#d#
		2334
		2335	cf::async {
		2336	$Coro::current->{desc} = "map player save";
		2337	$_->contr->save for $self->players;
		2338	};
		2339
		2340	cf::get_slot 0.02;
		2341
		2342	if ($uniq) {
		2343	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2344	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2345	} else {
		2346	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1300	}	2347	}
1301	}	2348	}
1302		2349
1303	sub save {	2350	sub save {
1304	my ($self) = @_;	2351	my ($self) = @_;
1305		2352
1306	$self->{last_save} = $cf::RUNTIME;	2353	my $lock = cf::lock_acquire "map_data:$self->{path}";
1307		2354
1308	return unless $self->dirty;	2355	$self->_save;
1309
1310	my $save = $self->{path}->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1312
1313	$self->{load_path} = $save;
1314
1315	return if $self->{deny_save};
1316
1317	local $self->{last_access} = $self->last_access;#d#
1318
1319	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}
1325	}	2356	}
1326		2357
1327	sub swap_out {	2358	sub swap_out {
1328	my ($self) = @_;	2359	my ($self) = @_;
1329		2360
1330	# save first because save cedes	2361	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331	$self->save;
1332		2362
		2363	return if $self->in_memory != cf::MAP_ACTIVE;
		2364	return if $self->{deny_save};
1333	return if $self->players;	2365	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};
1336		2366
		2367	# first deactivate the map and "unlink" it from the core
		2368	$self->deactivate;
		2369	$_->clear_links_to ($self) for values %cf::MAP;
		2370	$self->in_memory (cf::MAP_SWAPPED);
		2371
		2372	# then atomically save
		2373	$self->_save;
		2374
		2375	# then free the map
1337	$self->clear;	2376	$self->clear;
1338	$self->in_memory (cf::MAP_SWAPPED);
1339	}	2377	}
1340		2378
1341	sub reset_at {	2379	sub reset_at {
1342	my ($self) = @_;	2380	my ($self) = @_;
1343		2381
1344	# TODO: safety, remove and allow resettable per-player maps	2382	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	2383	return 1e99 if $self->{deny_reset};
1347		2384
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2385	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2386	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		2387
…		…
1355	my ($self) = @_;	2392	my ($self) = @_;
1356		2393
1357	$self->reset_at <= $cf::RUNTIME	2394	$self->reset_at <= $cf::RUNTIME
1358	}	2395	}
1359		2396
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	2397	sub reset {
1382	my ($self) = @_;	2398	my ($self) = @_;
1383		2399
		2400	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2401
1384	return if $self->players;	2402	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		2403
1387	warn "resetting map ", $self->path;#d#	2404	cf::trace "resetting map ", $self->path, "\n";
		2405
		2406	$self->in_memory (cf::MAP_SWAPPED);
		2407
		2408	# need to save uniques path
		2409	unless ($self->{deny_save}) {
		2410	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2411
		2412	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2413	if $uniq;
		2414	}
1388		2415
1389	delete $cf::MAP{$self->path};	2416	delete $cf::MAP{$self->path};
1390		2417
		2418	$self->deactivate;
1391	$_->clear_links_to ($self) for values %cf::MAP;	2419	$_->clear_links_to ($self) for values %cf::MAP;
		2420	$self->clear;
1392		2421
1393	$self->unlink_save;	2422	$self->unlink_save;
1394	$self->destroy;	2423	$self->destroy;
1395	}	2424	}
1396		2425
1397	my $nuke_counter = "aaaa";	2426	my $nuke_counter = "aaaa";
1398		2427
1399	sub nuke {	2428	sub nuke {
1400	my ($self) = @_;	2429	my ($self) = @_;
1401		2430
		2431	{
		2432	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2433
		2434	delete $cf::MAP{$self->path};
		2435
		2436	$self->unlink_save;
		2437
		2438	bless $self, "cf::map::wrap";
		2439	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	2440	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	2441	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	2442	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2443
		2444	$cf::MAP{$self->path} = $self;
		2445	}
		2446
1405	$self->reset; # polite request, might not happen	2447	$self->reset; # polite request, might not happen
1406	}	2448	}
1407		2449
1408	sub customise_for {	2450	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2451
1411	if ($map->per_player) {	2452	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2453	maps. May block.
		2454
		2455	=cut
		2456
		2457	sub tmp_maps() {
1413	}	2458	[
1414		2459	map {
1415	$map	2460	utf8::decode $_;
		2461	/\.map$/
		2462	? normalise $_
		2463	: ()
		2464	} @{ aio_readdir $TMPDIR or [] }
		2465	]
1416	}	2466	}
1417		2467
1418	sub emergency_save {	2468	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2469
1421	warn "enter emergency map save\n";	2470	Returns an arrayref with all map paths of currently instantiated and saved
		2471	random maps. May block.
1422		2472
1423	cf::sync_job {	2473	=cut
1424	warn "begin emergency map save\n";	2474
1425	$_->save for values %cf::MAP;	2475	sub random_maps() {
		2476	[
		2477	map {
		2478	utf8::decode $_;
		2479	/\.map$/
		2480	? normalise "?random/$_"
		2481	: ()
		2482	} @{ aio_readdir $RANDOMDIR or [] }
		2483	]
		2484	}
		2485
		2486	=item cf::map::unique_maps
		2487
		2488	Returns an arrayref of paths of all shared maps that have
		2489	instantiated unique items. May block.
		2490
		2491	=cut
		2492
		2493	sub unique_maps() {
		2494	[
		2495	map {
		2496	utf8::decode $_;
		2497	s/\.map$//; # TODO future compatibility hack
		2498	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2499	? ()
		2500	: normalise $_
		2501	} @{ aio_readdir $UNIQUEDIR or [] }
		2502	]
		2503	}
		2504
		2505	=item cf::map::static_maps
		2506
		2507	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2508	file in the shared directory excluding F</styles> and F</editor>). May
		2509	block.
		2510
		2511	=cut
		2512
		2513	sub static_maps() {
		2514	my @dirs = "";
		2515	my @maps;
		2516
		2517	while (@dirs) {
		2518	my $dir = shift @dirs;
		2519
		2520	next if $dir eq "/styles" || $dir eq "/editor";
		2521
		2522	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2523	or return;
		2524
		2525	for (@$files) {
		2526	s/\.map$// or next;
		2527	utf8::decode $_;
		2528	push @maps, "$dir/$_";
		2529	}
		2530
		2531	push @dirs, map "$dir/$_", @$dirs;
1426	};	2532	}
1427		2533
1428	warn "end emergency map save\n";	2534	\@maps
		2535	}
		2536
		2537	=back
		2538
		2539	=head3 cf::object
		2540
		2541	=cut
		2542
		2543	package cf::object;
		2544
		2545	=over 4
		2546
		2547	=item $ob->inv_recursive
		2548
		2549	Returns the inventory of the object I<and> their inventories, recursively,
		2550	but I<not> the object itself.
		2551
		2552	=cut
		2553
		2554	sub inv_recursive_;
		2555	sub inv_recursive_ {
		2556	map { $_, inv_recursive_ $_->inv } @_
		2557	}
		2558
		2559	sub inv_recursive {
		2560	inv_recursive_ inv $_[0]
		2561	}
		2562
		2563	=item $ref = $ob->ref
		2564
		2565	Creates and returns a persistent reference to an object that can be stored as a string.
		2566
		2567	=item $ob = cf::object::deref ($refstring)
		2568
		2569	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2570	even if the object actually exists. May block.
		2571
		2572	=cut
		2573
		2574	sub deref {
		2575	my ($ref) = @_;
		2576
		2577	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2578	my ($uuid, $name) = ($1, $2);
		2579	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2580	or return;
		2581	$pl->ob->uuid eq $uuid
		2582	or return;
		2583
		2584	$pl->ob
		2585	} else {
		2586	warn "$ref: cannot resolve object reference\n";
		2587	undef
		2588	}
1429	}	2589	}
1430		2590
1431	package cf;	2591	package cf;
1432		2592
1433	=back	2593	=back
1434
1435		2594
1436	=head3 cf::object::player	2595	=head3 cf::object::player
1437		2596
1438	=over 4	2597	=over 4
1439		2598
…		…
1442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2601	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1443	can be C<undef>. Does the right thing when the player is currently in a	2602	can be C<undef>. Does the right thing when the player is currently in a
1444	dialogue with the given NPC character.	2603	dialogue with the given NPC character.
1445		2604
1446	=cut	2605	=cut
		2606
		2607	our $SAY_CHANNEL = {
		2608	id => "say",
		2609	title => "Map",
		2610	reply => "say ",
		2611	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2612	};
		2613
		2614	our $CHAT_CHANNEL = {
		2615	id => "chat",
		2616	title => "Chat",
		2617	reply => "chat ",
		2618	tooltip => "Player chat and shouts, global to the server.",
		2619	};
1447		2620
1448	# rough implementation of a future "reply" method that works	2621	# rough implementation of a future "reply" method that works
1449	# with dialog boxes.	2622	# with dialog boxes.
1450	#TODO: the first argument must go, split into a $npc->reply_to ( method	2623	#TODO: the first argument must go, split into a $npc->reply_to ( method
1451	sub cf::object::player::reply($$$;$) {	2624	sub cf::object::player::reply($$$;$) {
…		…
1453		2626
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2627	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2628
1456	if ($self->{record_replies}) {	2629	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2630	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2631
1458	} else {	2632	} else {
		2633	my $pl = $self->contr;
		2634
		2635	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2636	my $dialog = $pl->{npc_dialog};
		2637	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2638
		2639	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2640	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2641	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2642	}
1461	}	2643	}
		2644	}
		2645
		2646	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2647
		2648	=cut
		2649
		2650	sub cf::object::send_msg {
		2651	my $pl = shift->contr
		2652	or return;
		2653	$pl->send_msg (@_);
1462	}	2654	}
1463		2655
1464	=item $player_object->may ("access")	2656	=item $player_object->may ("access")
1465		2657
1466	Returns wether the given player is authorized to access resource "access"	2658	Returns wether the given player is authorized to access resource "access"
…		…
1479		2671
1480	=item $player_object->enter_link	2672	=item $player_object->enter_link
1481		2673
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2674	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2675
1484	The player should be reaosnably safe there for short amounts of time. You	2676	The player should be reasonably safe there for short amounts of time (e.g.
1485	I<MUST> call C<leave_link> as soon as possible, though.	2677	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2678	though, as the player cannot control the character while it is on the link
		2679	map.
		2680
		2681	Will never block.
1486		2682
1487	=item $player_object->leave_link ($map, $x, $y)	2683	=item $player_object->leave_link ($map, $x, $y)
1488		2684
1489	Moves the player out of the specila link map onto the given map. If the	2685	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2686	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2687	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2688	fails, to the emergency map position.
1493		2689
1494	Might block.	2690	Might block.
1495		2691
1496	=cut	2692	=cut
		2693
		2694	sub link_map {
		2695	unless ($LINK_MAP) {
		2696	$LINK_MAP = cf::map::find "{link}"
		2697	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2698	$LINK_MAP->load;
		2699	}
		2700
		2701	$LINK_MAP
		2702	}
1497		2703
1498	sub cf::object::player::enter_link {	2704	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2705	my ($self) = @_;
1500		2706
1501	$self->deactivate_recursive;	2707	$self->deactivate_recursive;
1502		2708
1503	return if $self->map == $LINK_MAP;	2709	++$self->{_link_recursion};
		2710
		2711	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2712
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2713	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2714	if $self->map && $self->map->{path} ne "{link}";
1507		2715
1508	$self->enter_map ($LINK_MAP, 20, 20);	2716	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1509	}	2717	}
1510		2718
1511	sub cf::object::player::leave_link {	2719	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2720	my ($self, $map, $x, $y) = @_;
		2721
		2722	return unless $self->contr->active;
1513		2723
1514	my $link_pos = delete $self->{_link_pos};	2724	my $link_pos = delete $self->{_link_pos};
1515		2725
1516	unless ($map) {	2726	unless ($map) {
1517	# restore original map position	2727	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2728	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2729	$map = cf::map::find $map;
1520		2730
1521	unless ($map) {	2731	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2732	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2733	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2734	or die "FATAL: cannot load emergency map\n";
1525	}	2735	}
1526	}	2736	}
1527		2737
1528	($x, $y) = (-1, -1)	2738	($x, $y) = (-1, -1)
1529	unless (defined $x) && (defined $y);	2739	unless (defined $x) && (defined $y);
1530		2740
1531	# use -1 or undef as default coordinates, not 0, 0	2741	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2742	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2743	if $x <= 0 && $y <= 0;
1534		2744
1535	$map->load;	2745	$map->load;
		2746	$map->load_neighbours;
1536		2747
		2748	return unless $self->contr->active;
		2749
		2750	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2751	if ($self->enter_map ($map, $x, $y)) {
		2752	# entering was successful
		2753	delete $self->{_link_recursion};
		2754	# only activate afterwards, to support waiting in hooks
1537	$self->activate_recursive;	2755	$self->activate_recursive;
1538	$self->enter_map ($map, $x, $y);
1539	}
1540
1541	cf::player->attach (
1542	on_logout => sub {
1543	my ($pl) = @_;
1544
1545	# abort map switching before logout
1546	if ($pl->ob->{_link_pos}) {
1547	cf::sync_job {
1548	$pl->ob->leave_link
1549	};
1550	}
1551	},	2756	}
1552	on_login => sub {
1553	my ($pl) = @_;
1554		2757
1555	# try to abort aborted map switching on player login :)	2758	}
1556	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568		2759
1569	=item $player_object->goto_map ($path, $x, $y)	2760	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1570		2761
1571	=cut	2762	Moves the player to the given map-path and coordinates by first freezing
		2763	her, loading and preparing them map, calling the provided $check callback
		2764	that has to return the map if sucecssful, and then unfreezes the player on
		2765	the new (success) or old (failed) map position. In either case, $done will
		2766	be called at the end of this process.
1572		2767
		2768	Note that $check will be called with a potentially non-loaded map, so if
		2769	it needs a loaded map it has to call C<< ->load >>.
		2770
		2771	=cut
		2772
		2773	our $GOTOGEN;
		2774
1573	sub cf::object::player::goto_map {	2775	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2776	my ($self, $path, $x, $y, $check, $done) = @_;
		2777
		2778	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2779	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2780	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2781	($path, $x, $y) = @$EMERGENCY_POSITION;
		2782	}
		2783
		2784	# do generation counting so two concurrent goto's will be executed in-order
		2785	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2786
1576	$self->enter_link;	2787	$self->enter_link;
1577		2788
1578	(cf::async {	2789	(async {
1579	$path = new cf::path $path;	2790	$Coro::current->{desc} = "player::goto $path $x $y";
1580		2791
1581	my $map = cf::map::find_map $path->as_string;	2792	# *tag paths override both path and x|y
		2793	if ($path =~ /^\*(.*)$/) {
		2794	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2795	my $ob = $obs[rand @obs];
		2796
		2797	# see if we actually can go there
		2798	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2799	$ob = $obs[rand @obs];
		2800	} else {
		2801	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2802	}
		2803	# else put us there anyways for now #d#
		2804
		2805	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2806	} else {
		2807	($path, $x, $y) = (undef, undef, undef);
		2808	}
		2809	}
		2810
		2811	my $map = eval {
		2812	my $map = defined $path ? cf::map::find $path : undef;
		2813
		2814	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2815	$map = $map->customise_for ($self);
1583		2816	$map = $check->($map, $x, $y, $self) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2817	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2818	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2819	}
1588		2820
		2821	$map
		2822	};
		2823
		2824	if ($@) {
		2825	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2826	LOG llevError | logBacktrace, Carp::longmess $@;
		2827	}
		2828
		2829	if ($gen == $self->{_goto_generation}) {
		2830	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2831	$self->leave_link ($map, $x, $y);
		2832	}
		2833
		2834	$done->($self) if $done;
1590	})->prio (1);	2835	})->prio (1);
1591	}	2836	}
1592		2837
1593	=item $player_object->enter_exit ($exit_object)	2838	=item $player_object->enter_exit ($exit_object)
1594		2839
…		…
1596		2841
1597	sub parse_random_map_params {	2842	sub parse_random_map_params {
1598	my ($spec) = @_;	2843	my ($spec) = @_;
1599		2844
1600	my $rmp = { # defaults	2845	my $rmp = { # defaults
1601	xsize => 10,	2846	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2847	ysize => (cf::rndm 15, 40),
		2848	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2849	#layout => string,
1603	};	2850	};
1604		2851
1605	for (split /\n/, $spec) {	2852	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2853	my ($k, $v) = split /\s+/, $_, 2;
1607		2854
…		…
1619	# that depends on the exit object	2866	# that depends on the exit object
1620		2867
1621	my $rmp = parse_random_map_params $exit->msg;	2868	my $rmp = parse_random_map_params $exit->msg;
1622		2869
1623	if ($exit->map) {	2870	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2871	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2872	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2873	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2874	$rmp->{origin_y} = $exit->y;
		2875
		2876	$exit->map->touch;
1628	}	2877	}
1629		2878
1630	$rmp->{random_seed} ||= $exit->random_seed;	2879	$rmp->{random_seed} ||= $exit->random_seed;
1631		2880
1632	my $data = cf::to_json $rmp;	2881	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1633	my $md5 = Digest::MD5::md5_hex $data;	2882	my $md5 = Digest::MD5::md5_hex $data;
		2883	my $meta = "$RANDOMDIR/$md5.meta";
1634		2884
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2885	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2886	aio_write $fh, 0, (length $data), $data, 0;
		2887	undef $fh;
		2888	aio_rename "$meta~", $meta;
1637		2889
		2890	my $slaying = "?random/$md5";
		2891
		2892	if ($exit->valid) {
1638	$exit->slaying ("?random/$md5");	2893	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2894	$exit->msg (undef);
		2895	}
1640	}	2896	}
1641	}	2897	}
1642		2898
1643	sub cf::object::player::enter_exit {	2899	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2900	my ($self, $exit) = @_;
1645		2901
1646	return unless $self->type == cf::PLAYER;	2902	return unless $self->type == cf::PLAYER;
1647		2903
1648	$self->enter_link;	2904	$self->enter_link;
1649		2905
1650	(cf::async {	2906	(async {
		2907	$Coro::current->{desc} = "enter_exit";
		2908
1651	unless (eval {	2909	unless (eval {
		2910	$self->deactivate_recursive; # just to be sure
		2911
		2912	# random map handling
		2913	{
		2914	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2915
1652	prepare_random_map $exit	2916	prepare_random_map $exit
1653	if $exit->slaying eq "/!";	2917	if $exit->slaying eq "/!";
		2918	}
1654		2919
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2920	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2921	my $x = $exit->stats->hp;
		2922	my $y = $exit->stats->sp;
1657		2923
		2924	$self->goto ($map, $x, $y);
		2925
		2926	# if exit is damned, update players death & WoR home-position
		2927	$self->contr->savebed ($map, $x, $y)
		2928	if $exit->flag (cf::FLAG_DAMNED);
		2929
1658	1;	2930	1
1659	}) {	2931	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2932	$self->message ("Something went wrong deep within the deliantra server. "
1661	. "I'll try to bring you back to the map you were before. "	2933	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2934	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2935	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2936
1665	warn "ERROR in enter_exit: $@";	2937	error "ERROR in enter_exit: $@";
1666	$self->leave_link;	2938	$self->leave_link;
1667	}	2939	}
1668	})->prio (1);	2940	})->prio (1);
1669	}	2941	}
1670		2942
…		…
1681		2953
1682	sub cf::client::send_drawinfo {	2954	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2955	my ($self, $text, $flags) = @_;
1684		2956
1685	utf8::encode $text;	2957	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2958	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2959	}
1688		2960
		2961	=item $client->send_big_packet ($pkt)
		2962
		2963	Like C<send_packet>, but tries to compress large packets, and fragments
		2964	them as required.
		2965
		2966	=cut
		2967
		2968	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2969
		2970	sub cf::client::send_big_packet {
		2971	my ($self, $pkt) = @_;
		2972
		2973	# try lzf for large packets
		2974	$pkt = "lzf " . Compress::LZF::compress $pkt
		2975	if 1024 <= length $pkt and $self->{can_lzf};
		2976
		2977	# split very large packets
		2978	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2979	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2980	$pkt = "frag";
		2981	}
		2982
		2983	$self->send_packet ($pkt);
		2984	}
		2985
		2986	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2987
		2988	Send a drawinfo or msg packet to the client, formatting the msg for the
		2989	client if neccessary. C<$type> should be a string identifying the type of
		2990	the message, with C<log> being the default. If C<$color> is negative, suppress
		2991	the message unless the client supports the msg packet.
		2992
		2993	=cut
		2994
		2995	# non-persistent channels (usually the info channel)
		2996	our %CHANNEL = (
		2997	"c/motd" => {
		2998	id => "infobox",
		2999	title => "MOTD",
		3000	reply => undef,
		3001	tooltip => "The message of the day",
		3002	},
		3003	"c/identify" => {
		3004	id => "infobox",
		3005	title => "Identify",
		3006	reply => undef,
		3007	tooltip => "Items recently identified",
		3008	},
		3009	"c/examine" => {
		3010	id => "infobox",
		3011	title => "Examine",
		3012	reply => undef,
		3013	tooltip => "Signs and other items you examined",
		3014	},
		3015	"c/shopinfo" => {
		3016	id => "infobox",
		3017	title => "Shop Info",
		3018	reply => undef,
		3019	tooltip => "What your bargaining skill tells you about the shop",
		3020	},
		3021	"c/book" => {
		3022	id => "infobox",
		3023	title => "Book",
		3024	reply => undef,
		3025	tooltip => "The contents of a note or book",
		3026	},
		3027	"c/lookat" => {
		3028	id => "infobox",
		3029	title => "Look",
		3030	reply => undef,
		3031	tooltip => "What you saw there",
		3032	},
		3033	"c/who" => {
		3034	id => "infobox",
		3035	title => "Players",
		3036	reply => undef,
		3037	tooltip => "Shows players who are currently online",
		3038	},
		3039	"c/body" => {
		3040	id => "infobox",
		3041	title => "Body Parts",
		3042	reply => undef,
		3043	tooltip => "Shows which body parts you posess and are available",
		3044	},
		3045	"c/statistics" => {
		3046	id => "infobox",
		3047	title => "Statistics",
		3048	reply => undef,
		3049	tooltip => "Shows your primary statistics",
		3050	},
		3051	"c/skills" => {
		3052	id => "infobox",
		3053	title => "Skills",
		3054	reply => undef,
		3055	tooltip => "Shows your experience per skill and item power",
		3056	},
		3057	"c/shopitems" => {
		3058	id => "infobox",
		3059	title => "Shop Items",
		3060	reply => undef,
		3061	tooltip => "Shows the items currently for sale in this shop",
		3062	},
		3063	"c/resistances" => {
		3064	id => "infobox",
		3065	title => "Resistances",
		3066	reply => undef,
		3067	tooltip => "Shows your resistances",
		3068	},
		3069	"c/pets" => {
		3070	id => "infobox",
		3071	title => "Pets",
		3072	reply => undef,
		3073	tooltip => "Shows information abotu your pets/a specific pet",
		3074	},
		3075	"c/perceiveself" => {
		3076	id => "infobox",
		3077	title => "Perceive Self",
		3078	reply => undef,
		3079	tooltip => "You gained detailed knowledge about yourself",
		3080	},
		3081	"c/uptime" => {
		3082	id => "infobox",
		3083	title => "Uptime",
		3084	reply => undef,
		3085	tooltip => "How long the server has been running since last restart",
		3086	},
		3087	"c/mapinfo" => {
		3088	id => "infobox",
		3089	title => "Map Info",
		3090	reply => undef,
		3091	tooltip => "Information related to the maps",
		3092	},
		3093	"c/party" => {
		3094	id => "party",
		3095	title => "Party",
		3096	reply => "gsay ",
		3097	tooltip => "Messages and chat related to your party",
		3098	},
		3099	"c/death" => {
		3100	id => "death",
		3101	title => "Death",
		3102	reply => undef,
		3103	tooltip => "Reason for and more info about your most recent death",
		3104	},
		3105	"c/say" => $SAY_CHANNEL,
		3106	"c/chat" => $CHAT_CHANNEL,
		3107	);
		3108
		3109	sub cf::client::send_msg {
		3110	my ($self, $channel, $msg, $color, @extra) = @_;
		3111
		3112	$msg = $self->pl->expand_cfpod ($msg)
		3113	unless $color & cf::NDI_VERBATIM;
		3114
		3115	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3116
		3117	# check predefined channels, for the benefit of C
		3118	if ($CHANNEL{$channel}) {
		3119	$channel = $CHANNEL{$channel};
		3120
		3121	$self->ext_msg (channel_info => $channel);
		3122	$channel = $channel->{id};
		3123
		3124	} elsif (ref $channel) {
		3125	# send meta info to client, if not yet sent
		3126	unless (exists $self->{channel}{$channel->{id}}) {
		3127	$self->{channel}{$channel->{id}} = $channel;
		3128	$self->ext_msg (channel_info => $channel);
		3129	}
		3130
		3131	$channel = $channel->{id};
		3132	}
		3133
		3134	return unless @extra || length $msg;
		3135
		3136	# default colour, mask it out
		3137	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3138	if $color & cf::NDI_DEF;
		3139
		3140	my $pkt = "msg "
		3141	. $self->{json_coder}->encode (
		3142	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3143	);
		3144
		3145	$self->send_big_packet ($pkt);
		3146	}
		3147
		3148	=item $client->ext_msg ($type, @msg)
		3149
		3150	Sends an ext event to the client.
		3151
		3152	=cut
		3153
		3154	sub cf::client::ext_msg($$@) {
		3155	my ($self, $type, @msg) = @_;
		3156
		3157	if ($self->extcmd == 2) {
		3158	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3159	} elsif ($self->extcmd == 1) { # TODO: remove
		3160	push @msg, msgtype => "event_$type";
		3161	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3162	}
		3163	}
		3164
		3165	=item $client->ext_reply ($msgid, @msg)
		3166
		3167	Sends an ext reply to the client.
		3168
		3169	=cut
		3170
		3171	sub cf::client::ext_reply($$@) {
		3172	my ($self, $id, @msg) = @_;
		3173
		3174	if ($self->extcmd == 2) {
		3175	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3176	} elsif ($self->extcmd == 1) {
		3177	#TODO: version 1, remove
		3178	unshift @msg, msgtype => "reply", msgid => $id;
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
1689		3182
1690	=item $success = $client->query ($flags, "text", \&cb)	3183	=item $success = $client->query ($flags, "text", \&cb)
1691		3184
1692	Queues a query to the client, calling the given callback with	3185	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3186	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3187	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		3188
1696	Queries can fail, so check the return code. Or don't, as queries will become	3189	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	3190	become reliable at some point in the future.
1698		3191
1699	=cut	3192	=cut
1700		3193
1701	sub cf::client::query {	3194	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	3195	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	3203	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3204	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		3205
1713	$self->send_packet ($self->{query_queue}[0][0])	3206	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	3207	if @{ $self->{query_queue} } == 1;
		3208
		3209	1
1715	}	3210	}
1716		3211
1717	cf::client->attach (	3212	cf::client->attach (
		3213	on_connect => sub {
		3214	my ($ns) = @_;
		3215
		3216	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3217	},
1718	on_reply => sub {	3218	on_reply => sub {
1719	my ($ns, $msg) = @_;	3219	my ($ns, $msg) = @_;
1720		3220
1721	# this weird shuffling is so that direct followup queries	3221	# this weird shuffling is so that direct followup queries
1722	# get handled first	3222	# get handled first
1723	my $queue = delete $ns->{query_queue}	3223	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	3224	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		3225
1726	(shift @$queue)->[1]->($msg);	3226	(shift @$queue)->[1]->($msg);
		3227	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		3228
1728	push @{ $ns->{query_queue} }, @$queue;	3229	push @{ $ns->{query_queue} }, @$queue;
1729		3230
1730	if (@{ $ns->{query_queue} } == @$queue) {	3231	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	3232	if (@$queue) {
…		…
1733	} else {	3234	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3235	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	3236	}
1736	}	3237	}
1737	},	3238	},
		3239	on_exticmd => sub {
		3240	my ($ns, $buf) = @_;
		3241
		3242	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3243
		3244	if (ref $msg) {
		3245	my ($type, $reply, @payload) =
		3246	"ARRAY" eq ref $msg
		3247	? @$msg
		3248	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3249
		3250	my @reply;
		3251
		3252	if (my $cb = $EXTICMD{$type}) {
		3253	@reply = $cb->($ns, @payload);
		3254	}
		3255
		3256	$ns->ext_reply ($reply, @reply)
		3257	if $reply;
		3258
		3259	} else {
		3260	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3261	}
		3262
		3263	cf::override;
		3264	},
1738	);	3265	);
1739		3266
1740	=item $client->coro (\&cb)	3267	=item $client->async (\&cb)
1741		3268
1742	Create a new coroutine, running the specified callback. The coroutine will	3269	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	3270	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	3271	or loss of connection).
1745		3272
1746	=cut	3273	=cut
1747		3274
1748	sub cf::client::coro {	3275	sub cf::client::async {
1749	my ($self, $cb) = @_;	3276	my ($self, $cb) = @_;
1750		3277
1751	my $coro = &cf::async ($cb);	3278	my $coro = &Coro::async ($cb);
1752		3279
1753	$coro->on_destroy (sub {	3280	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	3281	delete $self->{_coro}{$coro+0};
1755	});	3282	});
1756		3283
…		…
1758		3285
1759	$coro	3286	$coro
1760	}	3287	}
1761		3288
1762	cf::client->attach (	3289	cf::client->attach (
1763	on_destroy => sub {	3290	on_client_destroy => sub {
1764	my ($ns) = @_;	3291	my ($ns) = @_;
1765		3292
1766	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3293	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1767	},	3294	},
1768	);	3295	);
…		…
1783	our $safe = new Safe "safe";	3310	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3311	our $safe_hole = new Safe::Hole;
1785		3312
1786	$SIG{FPE} = 'IGNORE';	3313	$SIG{FPE} = 'IGNORE';
1787		3314
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3315	$safe->permit_only (Opcode::opset qw(
		3316	:base_core :base_mem :base_orig :base_math :base_loop
		3317	grepstart grepwhile mapstart mapwhile
		3318	sort time
		3319	));
1789		3320
1790	# here we export the classes and methods available to script code	3321	# here we export the classes and methods available to script code
1791		3322
1792	=pod	3323	=pod
1793		3324
1794	The following fucntions and emthods are available within a safe environment:	3325	The following functions and methods are available within a safe environment:
1795		3326
1796	cf::object contr pay_amount pay_player map	3327	cf::object
		3328	contr pay_amount pay_player map x y force_find force_add destroy
		3329	insert remove name archname title slaying race decrease split
		3330	value
		3331
1797	cf::object::player player	3332	cf::object::player
1798	cf::player peaceful	3333	player
1799	cf::map trigger	3334
		3335	cf::player
		3336	peaceful
		3337
		3338	cf::map
		3339	trigger
1800		3340
1801	=cut	3341	=cut
1802		3342
1803	for (	3343	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3344	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3345	insert remove inv nrof name archname title slaying race
		3346	decrease split destroy change_exp value msg lore send_msg)],
1805	["cf::object::player" => qw(player)],	3347	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3348	["cf::player" => qw(peaceful send_msg)],
1807	["cf::map" => qw(trigger)],	3349	["cf::map" => qw(trigger)],
1808	) {	3350	) {
1809	no strict 'refs';
1810	my ($pkg, @funs) = @$_;	3351	my ($pkg, @funs) = @$_;
1811	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3352	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1812	for @funs;	3353	for @funs;
1813	}	3354	}
1814		3355
…		…
1829		3370
1830	my $qcode = $code;	3371	my $qcode = $code;
1831	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3372	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1832	$qcode =~ s/\n/\\n/g;	3373	$qcode =~ s/\n/\\n/g;
1833		3374
		3375	%vars = (_dummy => 0) unless %vars;
		3376
		3377	my @res;
1834	local $_;	3378	local $_;
1835	local @safe::cf::_safe_eval_args = values %vars;
1836		3379
1837	my $eval =	3380	my $eval =
1838	"do {\n"	3381	"do {\n"
1839	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3382	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1840	. "#line 0 \"{$qcode}\"\n"	3383	. "#line 0 \"{$qcode}\"\n"
1841	. $code	3384	. $code
1842	. "\n}"	3385	. "\n}"
1843	;	3386	;
1844		3387
		3388	if ($CFG{safe_eval}) {
1845	sub_generation_inc;	3389	sub_generation_inc;
		3390	local @safe::cf::_safe_eval_args = values %vars;
1846	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3391	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1847	sub_generation_inc;	3392	sub_generation_inc;
		3393	} else {
		3394	local @cf::_safe_eval_args = values %vars;
		3395	@res = wantarray ? eval eval : scalar eval $eval;
		3396	}
1848		3397
1849	if ($@) {	3398	if ($@) {
1850	warn "$@";	3399	warn "$@",
1851	warn "while executing safe code '$code'\n";	3400	"while executing safe code '$code'\n",
1852	warn "with arguments " . (join " ", %vars) . "\n";	3401	"with arguments " . (join " ", %vars) . "\n";
1853	}	3402	}
1854		3403
1855	wantarray ? @res : $res[0]	3404	wantarray ? @res : $res[0]
1856	}	3405	}
1857		3406
…		…
1871	=cut	3420	=cut
1872		3421
1873	sub register_script_function {	3422	sub register_script_function {
1874	my ($fun, $cb) = @_;	3423	my ($fun, $cb) = @_;
1875		3424
1876	no strict 'refs';	3425	$fun = "safe::$fun" if $CFG{safe_eval};
1877	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3426	*$fun = $safe_hole->wrap ($cb);
1878	}	3427	}
1879		3428
1880	=back	3429	=back
1881		3430
1882	=cut	3431	=cut
1883		3432
1884	#############################################################################	3433	#############################################################################
		3434	# the server's init and main functions
1885		3435
1886	=head2 EXTENSION DATABASE SUPPORT	3436	sub load_facedata($) {
		3437	my ($path) = @_;
1887		3438
1888	Crossfire maintains a very simple database for extension use. It can	3439	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3440	# for this (global event?)
1890	excludes objects.	3441	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3442
1892	The parameter C<$family> should best start with the name of the extension	3443	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3444
1895	=over 4	3445	trace "loading facedata from $path\n";
1896		3446
1897	=item $hashref = cf::db_get $family	3447	my $facedata = decode_storable load_file $path;
1898		3448
1899	Return a hashref for use by the extension C<$family>, which can be	3449	$facedata->{version} == 2
1900	modified. After modifications, you have to call C<cf::db_dirty> or	3450	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901	C<cf::db_sync>.
1902		3451
1903	=item $value = cf::db_get $family => $key	3452	# patch in the exptable
1904		3453	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1905	Returns a single value from the database	3454	$facedata->{resource}{"res/exp_table"} = {
1906		3455	type => FT_RSRC,
1907	=item cf::db_put $family => $hashref	3456	data => $exp_table,
1908		3457	hash => (Digest::MD5::md5 $exp_table),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3458	};
		3459	cf::cede_to_tick;
1958		3460
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3461	{
		3462	my $faces = $facedata->{faceinfo};
1963		3463
1964	sub db_get($;$) {	3464	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3465	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3466
1970	sub db_put($$;$) {	3467	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3468	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3469	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1973	} else {	3470	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1974	$DB->{$_[0]} = $_[1];	3471	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1975	}
1976	db_dirty;
1977	}
1978		3472
1979	cf::global->attach (	3473	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3474	}
1984	);
1985	}
1986		3475
1987	#############################################################################	3476	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3477	next unless $info->{smooth};
1989		3478
1990	sub cfg_load {	3479	my $idx = cf::face::find $face
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3480	or next;
1992	or return;
1993		3481
1994	local $/;	3482	if (my $smooth = cf::face::find $info->{smooth}) {
1995	*CFG = YAML::Syck::Load <$fh>;	3483	cf::face::set_smooth $idx, $smooth;
		3484	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3485	} else {
		3486	error "smooth face '$info->{smooth}' not found for face '$face'";
		3487	}
1996		3488
		3489	cf::cede_to_tick;
		3490	}
		3491	}
		3492
		3493	{
		3494	my $anims = $facedata->{animinfo};
		3495
		3496	while (my ($anim, $info) = each %$anims) {
		3497	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3498	cf::cede_to_tick;
		3499	}
		3500
		3501	cf::anim::invalidate_all; # d'oh
		3502	}
		3503
		3504	{
		3505	my $res = $facedata->{resource};
		3506
		3507	while (my ($name, $info) = each %$res) {
		3508	if (defined $info->{type}) {
		3509	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3510
		3511	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3512	cf::face::set_type $idx, $info->{type};
		3513	} else {
		3514	$RESOURCE{$name} = $info; # unused
		3515	}
		3516
		3517	cf::cede_to_tick;
		3518	}
		3519	}
		3520
		3521	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3522
		3523	1
		3524	}
		3525
		3526	register_exticmd fx_want => sub {
		3527	my ($ns, $want) = @_;
		3528
		3529	while (my ($k, $v) = each %$want) {
		3530	$ns->fx_want ($k, $v);
		3531	}
		3532	};
		3533
		3534	sub load_resource_file($) {
		3535	my $guard = lock_acquire "load_resource_file";
		3536
		3537	my $status = load_resource_file_ $_[0];
		3538	get_slot 0.1, 100;
		3539	cf::arch::commit_load;
		3540
		3541	$status
		3542	}
		3543
		3544	sub reload_regions {
		3545	# HACK to clear player env face cache, we need some signal framework
		3546	# for this (global event?)
		3547	%ext::player_env::MUSIC_FACE_CACHE = ();
		3548
		3549	load_resource_file "$MAPDIR/regions"
		3550	or die "unable to load regions file\n";
		3551
		3552	for (cf::region::list) {
		3553	$_->{match} = qr/$_->{match}/
		3554	if exists $_->{match};
		3555	}
		3556	}
		3557
		3558	sub reload_facedata {
		3559	load_facedata "$DATADIR/facedata"
		3560	or die "unable to load facedata\n";
		3561	}
		3562
		3563	sub reload_archetypes {
		3564	load_resource_file "$DATADIR/archetypes"
		3565	or die "unable to load archetypes\n";
		3566	}
		3567
		3568	sub reload_treasures {
		3569	load_resource_file "$DATADIR/treasures"
		3570	or die "unable to load treasurelists\n";
		3571	}
		3572
		3573	sub reload_sound {
		3574	trace "loading sound config from $DATADIR/sound\n";
		3575
		3576	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3577
		3578	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3579	my $sound = $soundconf->{compat}[$_]
		3580	or next;
		3581
		3582	my $face = cf::face::find "sound/$sound->[1]";
		3583	cf::sound::set $sound->[0] => $face;
		3584	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3585	}
		3586
		3587	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3588	my $face = cf::face::find "sound/$v";
		3589	cf::sound::set $k => $face;
		3590	}
		3591	}
		3592
		3593	sub reload_resources {
		3594	trace "reloading resource files...\n";
		3595
		3596	reload_exp_table;
		3597	reload_materials;
		3598	reload_facedata;
		3599	reload_sound;
		3600	reload_archetypes;
		3601	reload_regions;
		3602	reload_treasures;
		3603
		3604	trace "finished reloading resource files\n";
		3605	}
		3606
		3607	sub reload_config {
		3608	trace "reloading config file...\n";
		3609
		3610	my $config = load_file "$CONFDIR/config";
		3611	utf8::decode $config;
		3612	*CFG = decode_yaml $config;
		3613
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3614	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3615
		3616	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3617	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1998		3618
1999	if (exists $CFG{mlockall}) {	3619	if (exists $CFG{mlockall}) {
2000	eval {	3620	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	3621	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	3622	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	3623	};
2004	warn $@ if $@;	3624	warn $@ if $@;
2005	}	3625	}
2006	}	3626	}
2007		3627
		3628	sub pidfile() {
		3629	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3630	or die "$PIDFILE: $!";
		3631	flock $fh, &Fcntl::LOCK_EX
		3632	or die "$PIDFILE: flock: $!";
		3633	$fh
		3634	}
		3635
		3636	# make sure only one server instance is running at any one time
		3637	sub atomic {
		3638	my $fh = pidfile;
		3639
		3640	my $pid = <$fh>;
		3641	kill 9, $pid if $pid > 0;
		3642
		3643	seek $fh, 0, 0;
		3644	print $fh $$;
		3645	}
		3646
		3647	sub main_loop {
		3648	trace "EV::loop starting\n";
		3649	if (1) {
		3650	EV::loop;
		3651	}
		3652	trace "EV::loop returned\n";
		3653	goto &main_loop unless $REALLY_UNLOOP;
		3654	}
		3655
2008	sub main {	3656	sub main {
		3657	cf::init_globals; # initialise logging
		3658
		3659	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3660	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3661	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3662	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3663
		3664	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3665
2009	# we must not ever block the main coroutine	3666	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	3667	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	3669	(async {
2013	Event::one_event;	3670	$Coro::current->{desc} = "IDLE BUG HANDLER";
2014	})->();	3671	EV::loop EV::LOOP_ONESHOT;
		3672	})->prio (Coro::PRIO_MAX);
2015	};	3673	};
2016		3674
2017	cfg_load;	3675	evthread_start IO::AIO::poll_fileno;
2018	db_load;	3676
		3677	cf::sync_job {
		3678	cf::incloader::init ();
		3679
		3680	cf::init_anim;
		3681	cf::init_attackmess;
		3682	cf::init_dynamic;
		3683
		3684	cf::load_settings;
		3685
		3686	reload_resources;
		3687	reload_config;
		3688	db_init;
		3689
		3690	cf::init_uuid;
		3691	cf::init_signals;
		3692	cf::init_skills;
		3693
		3694	cf::init_beforeplay;
		3695
		3696	atomic;
		3697
2019	load_extensions;	3698	load_extensions;
2020	Event::loop;	3699
		3700	utime time, time, $RUNTIMEFILE;
		3701
		3702	# no (long-running) fork's whatsoever before this point(!)
		3703	use POSIX ();
		3704	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3705
		3706	cf::_post_init 0;
		3707	};
		3708
		3709	cf::object::thawer::errors_are_fatal 0;
		3710	info "parse errors in files are no longer fatal from this point on.\n";
		3711
		3712	my $free_main; $free_main = EV::idle sub {
		3713	undef $free_main;
		3714	undef &main; # free gobs of memory :)
		3715	};
		3716
		3717	goto &main_loop;
2021	}	3718	}
2022		3719
2023	#############################################################################	3720	#############################################################################
2024	# initialisation	3721	# initialisation and cleanup
2025		3722
		3723	# install some emergency cleanup handlers
		3724	BEGIN {
		3725	our %SIGWATCHER = ();
		3726	for my $signal (qw(INT HUP TERM)) {
		3727	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3728	cf::cleanup "SIG$signal";
		3729	};
		3730	}
		3731	}
		3732
		3733	sub write_runtime_sync {
		3734	my $t0 = AE::time;
		3735
		3736	# first touch the runtime file to show we are still running:
		3737	# the fsync below can take a very very long time.
		3738
		3739	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3740
		3741	my $guard = cf::lock_acquire "write_runtime";
		3742
		3743	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3744	or return;
		3745
		3746	my $value = $cf::RUNTIME + 90 + 10;
		3747	# 10 is the runtime save interval, for a monotonic clock
		3748	# 60 allows for the watchdog to kill the server.
		3749
		3750	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3751	and return;
		3752
		3753	# always fsync - this file is important
		3754	aio_fsync $fh
		3755	and return;
		3756
		3757	# touch it again to show we are up-to-date
		3758	aio_utime $fh, undef, undef;
		3759
		3760	close $fh
		3761	or return;
		3762
		3763	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3764	and return;
		3765
		3766	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3767
		3768	1
		3769	}
		3770
		3771	our $uuid_lock;
		3772	our $uuid_skip;
		3773
		3774	sub write_uuid_sync($) {
		3775	$uuid_skip ||= $_[0];
		3776
		3777	return if $uuid_lock;
		3778	local $uuid_lock = 1;
		3779
		3780	my $uuid = "$LOCALDIR/uuid";
		3781
		3782	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3783	or return;
		3784
		3785	my $value = uuid_seq uuid_cur;
		3786
		3787	unless ($value) {
		3788	info "cowardly refusing to write zero uuid value!\n";
		3789	return;
		3790	}
		3791
		3792	my $value = uuid_str $value + $uuid_skip;
		3793	$uuid_skip = 0;
		3794
		3795	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3796	and return;
		3797
		3798	# always fsync - this file is important
		3799	aio_fsync $fh
		3800	and return;
		3801
		3802	close $fh
		3803	or return;
		3804
		3805	aio_rename "$uuid~", $uuid
		3806	and return;
		3807
		3808	trace "uuid file written ($value).\n";
		3809
		3810	1
		3811
		3812	}
		3813
		3814	sub write_uuid($$) {
		3815	my ($skip, $sync) = @_;
		3816
		3817	$sync ? write_uuid_sync $skip
		3818	: async { write_uuid_sync $skip };
		3819	}
		3820
		3821	sub emergency_save() {
		3822	my $freeze_guard = cf::freeze_mainloop;
		3823
		3824	info "emergency_perl_save: enter\n";
		3825
		3826	# this is a trade-off: we want to be very quick here, so
		3827	# save all maps without fsync, and later call a global sync
		3828	# (which in turn might be very very slow)
		3829	local $USE_FSYNC = 0;
		3830
		3831	cf::sync_job {
		3832	cf::write_runtime_sync; # external watchdog should not bark
		3833
		3834	# use a peculiar iteration method to avoid tripping on perl
		3835	# refcount bugs in for. also avoids problems with players
		3836	# and maps saved/destroyed asynchronously.
		3837	info "emergency_perl_save: begin player save\n";
		3838	for my $login (keys %cf::PLAYER) {
		3839	my $pl = $cf::PLAYER{$login} or next;
		3840	$pl->valid or next;
		3841	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3842	$pl->save;
		3843	}
		3844	info "emergency_perl_save: end player save\n";
		3845
		3846	cf::write_runtime_sync; # external watchdog should not bark
		3847
		3848	info "emergency_perl_save: begin map save\n";
		3849	for my $path (keys %cf::MAP) {
		3850	my $map = $cf::MAP{$path} or next;
		3851	$map->valid or next;
		3852	$map->save;
		3853	}
		3854	info "emergency_perl_save: end map save\n";
		3855
		3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	info "emergency_perl_save: begin database checkpoint\n";
		3859	BDB::db_env_txn_checkpoint $DB_ENV;
		3860	info "emergency_perl_save: end database checkpoint\n";
		3861
		3862	info "emergency_perl_save: begin write uuid\n";
		3863	write_uuid_sync 1;
		3864	info "emergency_perl_save: end write uuid\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	trace "emergency_perl_save: syncing database to disk";
		3869	BDB::db_env_txn_checkpoint $DB_ENV;
		3870
		3871	info "emergency_perl_save: starting sync\n";
		3872	IO::AIO::aio_sync sub {
		3873	info "emergency_perl_save: finished sync\n";
		3874	};
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	trace "emergency_perl_save: flushing outstanding aio requests";
		3879	while (IO::AIO::nreqs || BDB::nreqs) {
		3880	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3881	}
		3882
		3883	cf::write_runtime_sync; # external watchdog should not bark
		3884	};
		3885
		3886	info "emergency_perl_save: leave\n";
		3887	}
		3888
		3889	sub post_cleanup {
		3890	my ($make_core) = @_;
		3891
		3892	IO::AIO::flush;
		3893
		3894	error Carp::longmess "post_cleanup backtrace"
		3895	if $make_core;
		3896
		3897	my $fh = pidfile;
		3898	unlink $PIDFILE if <$fh> == $$;
		3899	}
		3900
		3901	# a safer delete_package, copied from Symbol
		3902	sub clear_package($) {
		3903	my $pkg = shift;
		3904
		3905	# expand to full symbol table name if needed
		3906	unless ($pkg =~ /^main::.*::$/) {
		3907	$pkg = "main$pkg" if $pkg =~ /^::/;
		3908	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3909	$pkg .= '::' unless $pkg =~ /::$/;
		3910	}
		3911
		3912	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3913	my $stem_symtab = *{$stem}{HASH};
		3914
		3915	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3916	or return;
		3917
		3918	# clear all symbols
		3919	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3920	for my $name (keys %$leaf_symtab) {
		3921	_gv_clear *{"$pkg$name"};
		3922	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3923	}
		3924	}
		3925
2026	sub reload() {	3926	sub do_reload_perl() {
2027	# can/must only be called in main	3927	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	3928	unless (in_main) {
2029	warn "can only reload from main coroutine\n";	3929	error "can only reload from main coroutine";
2030	return;	3930	return;
2031	}	3931	}
2032		3932
2033	warn "reloading...";	3933	return if $RELOAD++;
2034		3934
2035	local $FREEZE = 1;	3935	my $t1 = AE::time;
		3936
		3937	while ($RELOAD) {
		3938	cf::get_slot 0.1, -1, "reload_perl";
		3939	info "perl_reload: reloading...";
		3940
		3941	trace "perl_reload: entering sync_job";
		3942
		3943	cf::sync_job {
2036	cf::emergency_save;	3944	#cf::emergency_save;
2037		3945
2038	eval {	3946	trace "perl_reload: cancelling all extension coros";
2039	# if anything goes wrong in here, we should simply crash as we already saved
2040
2041	# cancel all watchers
2042	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}
2045
2046	# cancel all extension coros
2047	$_->cancel for values %EXT_CORO;	3947	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	3948	%EXT_CORO = ();
2049		3949
2050	# unload all extensions	3950	trace "perl_reload: removing commands";
2051	for (@exts) {	3951	%COMMAND = ();
2052	warn "unloading <$_>";
2053	unload_extension $_;
2054	}
2055		3952
2056	# unload all modules loaded from $LIBDIR	3953	trace "perl_reload: removing ext/exti commands";
2057	while (my ($k, $v) = each %INC) {	3954	%EXTCMD = ();
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3955	%EXTICMD = ();
2059		3956
2060	warn "removing <$k>";	3957	trace "perl_reload: unloading/nuking all extensions";
2061	delete $INC{$k};	3958	for my $pkg (@EXTS) {
		3959	trace "... unloading $pkg";
2062		3960
2063	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;
2065
2066	if (my $cb = $k->can ("unload_module")) {	3961	if (my $cb = $pkg->can ("unload")) {
		3962	eval {
2067	$cb->();	3963	$cb->($pkg);
		3964	1
		3965	} or error "$pkg unloaded, but with errors: $@";
		3966	}
		3967
		3968	trace "... clearing $pkg";
		3969	clear_package $pkg;
2068	}	3970	}
2069		3971
2070	Symbol::delete_package $k;	3972	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3973	while (my ($k, $v) = each %INC) {
		3974	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3975
		3976	trace "... unloading $k";
		3977	delete $INC{$k};
		3978
		3979	$k =~ s/\.pm$//;
		3980	$k =~ s/\//::/g;
		3981
		3982	if (my $cb = $k->can ("unload_module")) {
		3983	$cb->();
		3984	}
		3985
		3986	clear_package $k;
2071	}	3987	}
2072		3988
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	3989	trace "perl_reload: getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	3990	clear_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3991	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		3992
2081	# remove register_script_function callbacks	3993	trace "perl_reload: unloading cf.pm \"a bit\"";
2082	# TODO
2083
2084	# unload cf.pm "a bit"
2085	delete $INC{"cf.pm"};	3994	delete $INC{"cf.pm"};
		3995	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2086		3996
2087	# don't, removes xs symbols, too,	3997	# don't, removes xs symbols, too,
2088	# and global variables created in xs	3998	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	3999	#clear_package __PACKAGE__;
2090		4000
2091	# reload cf.pm	4001	info "perl_reload: unload completed, starting to reload now";
2092	warn "reloading cf.pm";	4002
		4003	trace "perl_reload: reloading cf.pm";
2093	require cf;	4004	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4005	cf::_connect_to_perl_1;
2095		4006
2096	# load config and database again	4007	trace "perl_reload: loading config and database again";
2097	cf::cfg_load;	4008	cf::reload_config;
2098	cf::db_load;
2099		4009
2100	# load extensions	4010	trace "perl_reload: loading extensions";
2101	warn "load extensions";
2102	cf::load_extensions;	4011	cf::load_extensions;
2103		4012
2104	# reattach attachments to objects	4013	if ($REATTACH_ON_RELOAD) {
2105	warn "reattach";	4014	trace "perl_reload: reattaching attachments to objects/players";
2106	_global_reattach;	4015	_global_reattach; # objects, sockets
		4016	trace "perl_reload: reattaching attachments to maps";
		4017	reattach $_ for values %MAP;
		4018	trace "perl_reload: reattaching attachments to players";
		4019	reattach $_ for values %PLAYER;
		4020	}
		4021
		4022	cf::_post_init 1;
		4023
		4024	trace "perl_reload: leaving sync_job";
		4025
		4026	1
		4027	} or do {
		4028	error $@;
		4029	cf::cleanup "perl_reload: error, exiting.";
		4030	};
		4031
		4032	--$RELOAD;
		4033	}
		4034
		4035	$t1 = AE::time - $t1;
		4036	info "perl_reload: completed in ${t1}s\n";
		4037	};
		4038
		4039	our $RELOAD_WATCHER; # used only during reload
		4040
		4041	sub reload_perl() {
		4042	# doing reload synchronously and two reloads happen back-to-back,
		4043	# coro crashes during coro_state_free->destroy here.
		4044
		4045	$RELOAD_WATCHER ||= cf::async {
		4046	Coro::AIO::aio_wait cache_extensions;
		4047
		4048	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4049	do_reload_perl;
		4050	undef $RELOAD_WATCHER;
		4051	};
2107	};	4052	};
2108
2109	if ($@) {
2110	warn $@;
2111	warn "error while reloading, exiting.";
2112	exit 1;
2113	}
2114
2115	warn "reloaded successfully";
2116	};
2117
2118	#############################################################################
2119
2120	unless ($LINK_MAP) {
2121	$LINK_MAP = cf::map::new;
2122
2123	$LINK_MAP->width (41);
2124	$LINK_MAP->height (41);
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,
2133	cb => sub {
2134	$_[0]->w->cancel;
2135
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});
2154
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	4053	}
2160
2161	register "<global>", __PACKAGE__;
2162		4054
2163	register_command "reload" => sub {	4055	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	4056	my ($who, $arg) = @_;
2165		4057
2166	if ($who->flag (FLAG_WIZ)) {	4058	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	4059	$who->message ("reloading server.");
		4060	async {
		4061	$Coro::current->{desc} = "perl_reload";
		4062	reload_perl;
		4063	};
2170	}	4064	}
2171	};	4065	};
2172		4066
2173	unshift @INC, $LIBDIR;	4067	#############################################################################
2174		4068
2175	$TICK_WATCHER = Event->timer (	4069	my $bug_warning = 0;
2176	reentrant => 0,	4070
2177	prio => 0,	4071	our @WAIT_FOR_TICK;
2178	at => $NEXT_TICK || $TICK,	4072	our @WAIT_FOR_TICK_BEGIN;
2179	data => WF_AUTOCANCEL,	4073
2180	cb => sub {	4074	sub wait_for_tick() {
2181	unless ($FREEZE) {	4075	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4076
		4077	my $signal = new Coro::Signal;
		4078	push @WAIT_FOR_TICK, $signal;
		4079	$signal->wait;
		4080	}
		4081
		4082	sub wait_for_tick_begin() {
		4083	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4084
		4085	my $signal = new Coro::Signal;
		4086	push @WAIT_FOR_TICK_BEGIN, $signal;
		4087	$signal->wait;
		4088	}
		4089
		4090	sub tick {
		4091	if ($Coro::current != $Coro::main) {
		4092	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4093	unless ++$bug_warning > 10;
		4094	return;
		4095	}
		4096
2182	cf::server_tick; # one server iteration	4097	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	}
2185		4098
2186	$NEXT_TICK += $TICK;	4099	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2187		4100
2188	# if we are delayed by four ticks or more, skip them all	4101	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4102	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2190		4103	Coro::async_pool {
2191	$TICK_WATCHER->at ($NEXT_TICK);	4104	$Coro::current->{desc} = "runtime saver";
2192	$TICK_WATCHER->start;
2193	},
2194	);
2195
2196	IO::AIO::max_poll_time $TICK * 0.2;
2197
2198	Event->io (
2199	fd => IO::AIO::poll_fileno,
2200	poll => 'r',
2201	prio => 5,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,
2208	after => 0,
2209	interval => 10,
2210	cb => sub {
2211	(Coro::unblock_sub {
2212	write_runtime	4105	write_runtime_sync
2213	or warn "ERROR: unable to write runtime file: $!";	4106	or error "ERROR: unable to write runtime file: $!";
2214	})->();	4107	};
2215	},	4108	}
2216	);	4109
		4110	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4111	$sig->send;
		4112	}
		4113	while (my $sig = shift @WAIT_FOR_TICK) {
		4114	$sig->send;
		4115	}
		4116
		4117	$LOAD = ($NOW - $TICK_START) / $TICK;
		4118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4119
		4120	if (0) {
		4121	if ($NEXT_TICK) {
		4122	my $jitter = $TICK_START - $NEXT_TICK;
		4123	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4124	debug "jitter $JITTER\n";#d#
		4125	}
		4126	}
		4127	}
		4128
		4129	{
		4130	# configure BDB
		4131
		4132	BDB::min_parallel 16;
		4133	BDB::max_poll_reqs $TICK * 0.1;
		4134	$AnyEvent::BDB::WATCHER->priority (1);
		4135
		4136	unless ($DB_ENV) {
		4137	$DB_ENV = BDB::db_env_create;
		4138	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4139	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4140	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4141	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4142	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4143
		4144	cf::sync_job {
		4145	eval {
		4146	BDB::db_env_open
		4147	$DB_ENV,
		4148	$BDBDIR,
		4149	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4150	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4151	0666;
		4152
		4153	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4154	};
		4155
		4156	cf::cleanup "db_env_open(db): $@" if $@;
		4157	};
		4158	}
		4159
		4160	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4161	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4162	};
		4163	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4164	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4165	};
		4166	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4167	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4168	};
		4169	}
		4170
		4171	{
		4172	# configure IO::AIO
		4173
		4174	IO::AIO::min_parallel 8;
		4175	IO::AIO::max_poll_time $TICK * 0.1;
		4176	undef $AnyEvent::AIO::WATCHER;
		4177	}
		4178
		4179	our $_log_backtrace;
		4180	our $_log_backtrace_last;
		4181
		4182	sub _log_backtrace {
		4183	my ($msg, @addr) = @_;
		4184
		4185	$msg =~ s/\n$//;
		4186
		4187	if ($_log_backtrace_last eq $msg) {
		4188	LOG llevInfo, "[ABT] $msg\n";
		4189	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4190	# limit the # of concurrent backtraces
		4191	} elsif ($_log_backtrace < 2) {
		4192	$_log_backtrace_last = $msg;
		4193	++$_log_backtrace;
		4194	my $perl_bt = Carp::longmess $msg;
		4195	async {
		4196	$Coro::current->{desc} = "abt $msg";
		4197
		4198	my @bt = fork_call {
		4199	@addr = map { sprintf "%x", $_ } @addr;
		4200	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4201	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4202	or die "addr2line: $!";
		4203
		4204	my @funcs;
		4205	my @res = <$fh>;
		4206	chomp for @res;
		4207	while (@res) {
		4208	my ($func, $line) = splice @res, 0, 2, ();
		4209	push @funcs, "[$func] $line";
		4210	}
		4211
		4212	@funcs
		4213	};
		4214
		4215	LOG llevInfo, "[ABT] $perl_bt\n";
		4216	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4217	LOG llevInfo, "[ABT] $_\n" for @bt;
		4218	--$_log_backtrace;
		4219	};
		4220	} else {
		4221	LOG llevInfo, "[ABT] $msg\n";
		4222	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4223	}
		4224	}
		4225
		4226	# load additional modules
		4227	require "cf/$_.pm" for @EXTRA_MODULES;
		4228	cf::_connect_to_perl_2;
2217		4229
2218	END { cf::emergency_save }	4230	END { cf::emergency_save }
2219		4231
2220	1	4232	1
2221		4233

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