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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.562 by root, Sat Apr 23 04:46:26 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;
76		170
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		189
79	#############################################################################	190	#############################################################################
80		191
81	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
82		193
…		…
89	=item $cf::RUNTIME	200	=item $cf::RUNTIME
90		201
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	203	every server tick.
93		204
94	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		208
96	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
98		213
99	=item $cf::NOW	214	=item $cf::NOW
100		215
101	The time of the last (current) server tick.	216	The time of the last (current) server tick.
102		217
103	=item $cf::TICK	218	=item $cf::TICK
104		219
105	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
106		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
107	=item %cf::CFG	232	=item %cf::CFG
108		233
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	235	from wherever your confdir points to.
111		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
112	=back	260	=back
113		261
114	=cut	262	=cut
115		263
116	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	271	my $msg = join "", @_;
119	utf8::encode $msg;
120		272
121	$msg .= "\n"	273	$msg .= "\n"
122	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
123		275
124	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	277
126	}	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	};
127		294
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		302
135	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	304	# within the Safe compartment.
137	for my $pkg (qw(	305	for my $pkg (qw(
138	cf::global cf::attachable	306	cf::global cf::attachable
139	cf::object cf::object::player	307	cf::object cf::object::player
140	cf::client cf::player	308	cf::client cf::player
141	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
142	cf::map cf::party cf::region	311	cf::party cf::region
143	)) {	312	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	314	}
147		315
148	$Event::DIED = sub {	316	$EV::DIED = sub {
149	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
150	};	318	};
151		319
152	my %ext_pkg;	320	#############################################################################
153	my @exts;	321
154	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
155		326
156	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
157		328
158	=over 4	329	=over 4
159		330
160	=cut	331	=item dumpval $ref
161		332
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
163		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
164	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
165		369
166	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
167		371
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
176		373
177	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
178		375
179	=cut	376	=cut
180		377
181	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		379
186	=item my $guard = cf::guard { BLOCK }	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
187		382
188	Run the given callback when the guard object gets destroyed (useful for	383	=item $ref = cf::decode_storable $scalar
189	coroutine cancellations).
190		384
191	You can call C<< ->cancel >> on the guard object to stop the block from	385	Same as Coro::Storable::thaw, so blocks.
192	being executed.
193		386
194	=cut	387	=cut
195		388
196	sub guard(&) {	389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		390
200	sub cf::guard::cancel {	391	=item $ref = cf::decode_yaml $scalar
201	${$_[0]} = sub { };
202	}
203		392
204	sub cf::guard::DESTROY {	393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
205	${$_[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	}
206	}	443	}
207		444
208	=item cf::lock_wait $string	445	=item cf::lock_wait $string
209		446
210	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
211		448
212	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
213		450
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
217	returned.	454	returned.
218		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
219	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
220	uses map_find and load_map uses map_load).	460	uses map_find and cf::map::load uses map_load).
221		461
222	=cut	462	=item $locked = cf::lock_active $string
223		463
224	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
225		469
226	sub lock_wait($) {	470	sub lock_wait($) {
227	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	472	}
235		473
236	sub lock_acquire($) {	474	sub lock_acquire($) {
237	my ($key) = @_;	475	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	476	}
		477
		478	sub lock_active($) {
		479	$LOCKS->count ($_[0]) < 1
		480	}
		481
		482	sub freeze_mainloop {
		483	tick_inhibit_inc;
		484
		485	&Guard::guard (\&tick_inhibit_dec);
		486	}
		487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
		572	}
		573
		574	=item cf::async { BLOCK }
		575
		576	Currently the same as Coro::async_pool, meaning you cannot use
		577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
		579
		580	=cut
		581
		582	BEGIN { *async = \&Coro::async_pool }
249		583
250	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
251		585
252	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
255		590
256	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
259	fast or be very important.	594	fast or be very important.
…		…
261	=cut	596	=cut
262		597
263	sub sync_job(&) {	598	sub sync_job(&) {
264	my ($job) = @_;	599	my ($job) = @_;
265		600
266	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
267	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
269		606
270	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	608
272	local $FREEZE = 1;	609	my $freeze_guard = freeze_mainloop;
273		610
274	my $busy = 1;	611	my $busy = 1;
275	my @res;	612	my @res;
276		613
277	(Coro::async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	616	@res = eval { $job->() };
279	warn $@ if $@;	617	error $@ if $@;
280	undef $busy;	618	undef $busy;
281	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
282		620
283	while ($busy) {	621	while ($busy) {
		622	if (Coro::nready) {
284	Coro::cede_notself;	623	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
286	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
287		632
288	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
289	} else {	634	} else {
290	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
291		636
292	$job->()	637	$job->()
293	}	638	}
294	}	639	}
295		640
296	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
297		642
298	Creates and returns a new coro. This coro is automcatially being canceled	643	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
300		645
301	=cut	646	=cut
302		647
303	sub coro(&) {	648	sub async_ext(&) {
304	my $cb = shift;	649	my $cb = shift;
305		650
306	my $coro; $coro = async {	651	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		652
313	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
315	});	655	});
316	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
317		657
318	$coro	658	$coro
319	}	659	}
320		660
321	sub write_runtime {	661	=item fork_call { }, @args
322	my $runtime = cf::localdir . "/runtime";
323		662
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
325	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.
326		667
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		669
331	aio_fsync $fh	670	sub post_fork {
332	and return;	671	reset_signals;
		672	}
333		673
334	close $fh	674	sub fork_call(&@) {
335	or return;	675	my ($cb, @args) = @_;
336		676
337	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
338	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
339		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
340	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 => $type });
341	}	864	}
342		865
343	=back	866	=back
344		867
345	=cut	868	=cut
346		869
347	#############################################################################	870	#############################################################################
348		871
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
470		873
471	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
472	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")
473	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
474		877
475	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>
476	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
477	crossfire+).	880	Deliantra).
478		881
479	=over 4	882	=over 4
480		883
481	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
482		885
…		…
526	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
527		930
528	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
530		933
531	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		936
534	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
535		938
536	=over 4	939	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	1000	our @CB_MAP = ();
598		1001
599	my %attachment;	1002	my %attachment;
600		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
601	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
603		1012
604	use sort 'stable';	1013	use sort 'stable';
605		1014
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
640		1049
641	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		1054
646	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
648		1057
649	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
654		1063
655	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		1066
658	} elsif (ref $type) {	1067	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
660		1069
661	} else {	1070	} else {
662	shift @arg;	1071	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
664	}	1073	}
665	}	1074	}
666	}	1075	}
667		1076
668	sub _object_attach {	1077	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
679	}	1088	}
680		1089
681	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
682	} else {	1091	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1093	}
685		1094
686	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
687	}	1096	}
688		1097
…		…
690	if (ref $_[0]) {	1099	if (ref $_[0]) {
691	_object_attach @_;	1100	_object_attach @_;
692	} else {	1101	} else {
693	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
694	}	1103	}
		1104	_recalc_want;
695	};	1105	};
696		1106
697	# all those should be optimised	1107	# all those should be optimised
698	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1113	reattach ($obj);
704	} else {	1114	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
706	}	1116	}
		1117	_recalc_want;
707	};	1118	};
708		1119
709	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
711		1122
…		…
726	";	1137	";
727	die if $@;	1138	die if $@;
728	}	1139	}
729		1140
730	our $override;	1141	our $override;
731	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?
732		1143
733	sub override {	1144	sub override {
734	$override = 1;	1145	$override = 1;
735	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
736	}	1147	}
737		1148
738	sub do_invoke {	1149	sub do_invoke {
739	my $event = shift;	1150	my $event = shift;
740	my $callbacks = shift;	1151	my $callbacks = shift;
741		1152
742	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
743		1154
744	local $override;	1155	local $override;
745		1156
746	for (@$callbacks) {	1157	for (@$callbacks) {
747	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
748		1159
749	if ($@) {	1160	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1162	override;
753	}	1163	}
754		1164
755	return 1 if $override;	1165	return 1 if $override;
756	}	1166	}
757		1167
758	0	1168	0
759	}	1169	}
760		1170
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1172
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1174
765	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
766		1176
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1180
771	=back	1181	=back
772		1182
773	=cut	1183	=cut
774		1184
775	#############################################################################	1185	#############################################################################
776	# 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	}
777		1229
778	sub reattach {	1230	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
780	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
781		1236
782	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
783		1238
784	@$registry = ();	1239	@$registry = ();
785		1240
…		…
790	for (@$attach) {	1245	for (@$attach) {
791	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
793	}	1248	}
794	} else {	1249	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1251	}
797	}	1252	}
798	}	1253	}
799		1254
800	cf::attachable->attach (	1255	cf::attachable->attach (
801	prio => -1000000,	1256	prio => -1000000,
802	on_instantiate => sub {	1257	on_instantiate => sub {
803	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
804		1259
805	$data = from_json $data;	1260	$data = decode_json $data;
806		1261
807	for (@$data) {	1262	for (@$data) {
808	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
809		1264
810	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1281	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
828		1283
829	sync_job {	1284	sync_job {
830	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
833		1290
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$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;
837	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
838	close $fh;	1298	aio_close $fh;
839		1299
840	if (@$objs) {	1300	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	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;
845	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
846	close $fh;	1309	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
848	}	1311	}
849	} else {	1312	} else {
850	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
851	}	1314	}
852		1315
853	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1320	} else {
855	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
856	}	1322	}
857	} else {	1323	} else {
858	aio_unlink $filename;	1324	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
860	}	1326	}
861	}	1327	};
862	}	1328	}
863		1329
864	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
866		1332
…		…
878	or return;	1344	or return;
879		1345
880	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
882	or return;	1348	or return;
		1349
883	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
884	}	1352	}
885		1353
		1354	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
888	return ($data, $av);	1359	($data, $av)
889	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
890		1367
891	#############################################################################	1368	#############################################################################
892	# command handling &c	1369	# command handling &c
893		1370
894	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1385	}
909		1386
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1388
912	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.
913		1394
914	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
915	called.	1396	called.
916		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
917	=cut	1409	=cut
918		1410
919	sub register_extcmd {	1411	sub register_extcmd {
920	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
921		1413
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
926	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
927		1424
928	cf::player->attach (	1425	cf::player->attach (
929	on_command => sub {	1426	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
931		1428
932	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
933	or return;	1430	or return;
934		1431
…		…
939	cf::override;	1436	cf::override;
940	},	1437	},
941	on_extcmd => sub {	1438	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
943		1440
944	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1442
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
952	} else {	1458	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1460	}
955		1461
956	cf::override;	1462	cf::override;
957	},	1463	},
958	);	1464	);
959		1465
960	sub register {	1466	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1467	sub cache_extensions {
967	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
968		1469
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1473	}
1019	}	1474	};
1020		1475
1021	# remove extcmds	1476	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1477	}
1035		1478
1036	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1037	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1486	next unless -r $path;
1039	eval {	1487
1040	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	}
1041	1	1551	}
1042	} or warn "$ext not loaded: $@";	1552
		1553	unless ($progress) {
		1554	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1555
		1556	while (my ($k, $v) = each %todo) {
		1557	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559	}
		1560
		1561	last;
		1562	}
		1563	}
1043	}	1564	};
1044	}	1565	}
1045		1566
1046	#############################################################################	1567	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1568
1049	*cf::mapsupport::on_clean = sub {	1569	=back
		1570
		1571	=head2 CORE EXTENSIONS
		1572
		1573	Functions and methods that extend core deliantra objects.
		1574
		1575	=cut
		1576
		1577	package cf::player;
		1578
		1579	use Coro::AIO;
		1580
		1581	=head3 cf::player
		1582
		1583	=over 4
		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
		1599	=item cf::player::find $login
		1600
		1601	Returns the given player object, loading it if necessary (might block).
		1602
		1603	=cut
		1604
		1605	sub playerdir($) {
		1606	"$PLAYERDIR/"
		1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1608	}
		1609
		1610	sub path($) {
		1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1612
		1613	(playerdir $login) . "/playerdata"
		1614	}
		1615
		1616	sub find_active($) {
		1617	$cf::PLAYER{$_[0]}
		1618	and $cf::PLAYER{$_[0]}->active
		1619	and $cf::PLAYER{$_[0]}
		1620	}
		1621
		1622	sub exists($) {
1050	my ($map) = @_;	1623	my ($login) = @_;
1051		1624
1052	my $path = $map->tmpname;	1625	$cf::PLAYER{$login}
1053	defined $path or return;	1626	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1627	}
1066		1628
1067	# TODO: compatibility cruft, remove when no longer needed	1629	sub find($) {
		1630	return $cf::PLAYER{$_[0]} || do {
		1631	my $login = $_[0];
		1632
		1633	my $guard = cf::lock_acquire "user_find:$login";
		1634
		1635	$cf::PLAYER{$_[0]} || do {
		1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
		1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
		1651	$cf::PLAYER{$login} = $pl
		1652	}
		1653	}
		1654	}
		1655
1068	cf::player->attach (	1656	cf::player->attach (
1069	on_load => sub {	1657	on_load => sub {
1070	my ($pl, $path) = @_;	1658	my ($pl, $path) = @_;
1071		1659
1072	for my $o (all_objects $pl->ob) {	1660	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1661	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1662
1076	%$o = %{ Storable::thaw pack "H*", $value };	1663	$pl->ob->current_weapon ($slots->[0]);
1077	}	1664	$pl->combat_ob ($slots->[1]);
1078	}	1665	$pl->ranged_ob ($slots->[2]);
1079	},	1666	},
1080	);	1667	);
1081		1668
1082	#############################################################################	1669	sub save($) {
		1670	my ($pl) = @_;
1083		1671
1084	=head2 CORE EXTENSIONS	1672	return if $pl->{deny_save};
1085		1673
1086	Functions and methods that extend core crossfire objects.	1674	my $path = path $pl;
		1675	my $guard = cf::lock_acquire "user_save:$path";
1087		1676
1088	=head3 cf::player	1677	return if $pl->{deny_save};
		1678
		1679	aio_mkdir playerdir $pl, 0770;
		1680	$pl->{last_save} = $cf::RUNTIME;
		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
		1687	$pl->save_pl ($path);
		1688	cf::cede_to_tick;
		1689	}
		1690
		1691	sub new($) {
		1692	my ($login) = @_;
		1693
		1694	my $self = create;
		1695
		1696	$self->ob->name ($login);
		1697	$self->{deny_save} = 1;
		1698
		1699	$cf::PLAYER{$login} = $self;
		1700
		1701	$self
		1702	}
		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
		1721	sub quit_character {
		1722	my ($pl) = @_;
		1723
		1724	my $name = $pl->ob->name;
		1725
		1726	$pl->{deny_save} = 1;
		1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1728
		1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
		1736	$pl->ns->destroy if $pl->ns;
		1737
		1738	my $path = playerdir $pl;
		1739	my $temp = "$path~$cf::RUNTIME~deleting~";
		1740	aio_rename $path, $temp;
		1741	delete $cf::PLAYER{$pl->ob->name};
		1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
		1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
		1831	=item $player->ext_reply ($msgid, @msg)
		1832
		1833	Sends an ext reply to the player.
		1834
		1835	=cut
		1836
		1837	sub ext_reply($$@) {
		1838	my ($self, $id, @msg) = @_;
		1839
		1840	$self->ns->ext_reply ($id, @msg)
		1841	}
		1842
		1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
1089		1856
1090	=over 4	1857	=over 4
1091		1858
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1859	=cut
1097		1860
1098	sub cf::player::exists($) {	1861	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1862
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1863	=item cf::region::find_by_path $path
1104		1864
1105	Sends an ext reply to the player.	1865	Tries to decuce the likely region for a map knowing only its path.
1106		1866
1107	=cut	1867	=cut
1108		1868
1109	sub cf::player::ext_reply($$$%) {	1869	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1870	my ($path) = @_;
1111		1871
1112	$msg{msgid} = $id;	1872	$path =~ s/^~[^\/]*//; # skip ~login
1113		1873
1114	$self->send ("ext " . to_json \%msg);	1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
1115	}	1884	}
1116		1885
1117	=back	1886	=back
1118
1119		1887
1120	=head3 cf::map	1888	=head3 cf::map
1121		1889
1122	=over 4	1890	=over 4
1123		1891
…		…
1126	package cf::map;	1894	package cf::map;
1127		1895
1128	use Fcntl;	1896	use Fcntl;
1129	use Coro::AIO;	1897	use Coro::AIO;
1130		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1131	our $MAX_RESET = 7200;	1903	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1904	our $DEFAULT_RESET = 3000;
1133		1905
1134	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1135	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1136		1946
1137	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1138	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1139	$path,	1976	$path
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})
1151	}	1977	}
1152		1978
1153	# and all this just because we cannot iterate over	1979	sub new_from_path {
1154	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1155	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1156	my ($change) = @_;	2001	my ($self) = @_;
1157		2002
1158	$_->change_map_light ($change) for values %cf::MAP;	2003	$self
1159	}	2004	}
1160		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1161	sub try_load_header($) {	2056	sub load_header_from($) {
1162	my ($path) = @_;	2057	my ($self, $path) = @_;
1163		2058
1164	utf8::encode $path;	2059	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1166	or return;	2061	or return;
1167		2062
1168	my $map = cf::map::new	2063	$self->_load_header ($f)
1169	or return;	2064	or return;
1170		2065
1171	$map->load_header ($path)	2066	local $MAP_LOADING{$self->{path}} = $self;
		2067	$f->resolve_delayed_derefs;
		2068
		2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	sub load_header_orig {
		2075	my ($self) = @_;
		2076
		2077	$self->load_header_from ($self->load_path)
		2078	}
		2079
		2080	sub load_header_temp {
		2081	my ($self) = @_;
		2082
		2083	$self->load_header_from ($self->save_path)
		2084	}
		2085
		2086	sub prepare_temp {
		2087	my ($self) = @_;
		2088
		2089	$self->last_access ((delete $self->{last_access})
		2090	|| $cf::RUNTIME); #d#
		2091	# safety
		2092	$self->{instantiate_time} = $cf::RUNTIME
		2093	if $self->{instantiate_time} > $cf::RUNTIME;
		2094	}
		2095
		2096	sub prepare_orig {
		2097	my ($self) = @_;
		2098
		2099	$self->{load_original} = 1;
		2100	$self->{instantiate_time} = $cf::RUNTIME;
		2101	$self->last_access ($cf::RUNTIME);
		2102	$self->instantiate;
		2103	}
		2104
		2105	sub load_header {
		2106	my ($self) = @_;
		2107
		2108	if ($self->load_header_temp) {
		2109	$self->prepare_temp;
		2110	} else {
		2111	$self->load_header_orig
1172	or return;	2112	or return;
		2113	$self->prepare_orig;
		2114	}
1173		2115
1174	$map->{load_path} = $path;	2116	$self->{deny_reset} = 1
		2117	if $self->no_reset;
1175		2118
1176	$map	2119	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	2120	unless $self->default_region;
1178		2121
		2122	1
		2123	}
		2124
		2125	sub find;
1179	sub find_map {	2126	sub find {
1180	my ($path, $origin) = @_;	2127	my ($path, $origin) = @_;
1181		2128
1182	#warn "find_map<$path,$origin>\n";#d#	2129	cf::cede_to_tick;
1183		2130
1184	$path = new cf::path $path, $origin && $origin->path;	2131	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2132
1187	cf::lock_wait "map_find:$key";	2133	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2134	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2135
1192	# do it the slow way	2136	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2137	my $map = new_from_path cf::map $path
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2138	or return;
1207		2139
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	2140	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		2141
1221	if ($map->should_reset) {	2142	$map->load_header
		2143	or return;
		2144
		2145	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2146	# doing this can freeze the server in a sync job, obviously
		2147	#$cf::WAIT_FOR_TICK->wait;
		2148	undef $guard2;
		2149	undef $guard1;
1222	$map->reset;	2150	$map->reset;
1223	$map = find_map $path;	2151	return find $path;
1224	}	2152	}
1225		2153
1226	$cf::MAP{$key} = $map	2154	$cf::MAP{$path} = $map
1227	}	2155	}
1228	}	2156	}
		2157
		2158	sub pre_load { }
		2159	#sub post_load { } # XS
1229		2160
1230	sub load {	2161	sub load {
1231	my ($self) = @_;	2162	my ($self) = @_;
1232		2163
		2164	local $self->{deny_reset} = 1; # loading can take a long time
		2165
1233	my $path = $self->{path};	2166	my $path = $self->{path};
		2167
		2168	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2169	my $guard = cf::lock_acquire "map_data:$path";
1235		2170
		2171	return unless $self->valid;
1236	return if $self->in_memory != cf::MAP_SWAPPED;	2172	return unless $self->in_memory == cf::MAP_SWAPPED;
1237		2173
1238	$self->in_memory (cf::MAP_LOADING);	2174	$self->in_memory (cf::MAP_LOADING);
1239		2175
1240	$self->alloc;	2176	$self->alloc;
1241	$self->load_objects ($self->{load_path}, 1)	2177
		2178	$self->pre_load;
		2179	cf::cede_to_tick;
		2180
		2181	if (exists $self->{load_path}) {
		2182	my $f = new_from_file cf::object::thawer $self->{load_path};
		2183	$f->skip_block;
		2184	$self->_load_objects ($f)
1242	or return;	2185	or return;
1243		2186
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2187	$self->post_load_original
1245	if delete $self->{load_original};	2188	if delete $self->{load_original};
1246		2189
1247	if (my $uniq = $path->uniq_path) {	2190	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	2191	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	2192	unless (aio_stat $uniq) {
		2193	if (my $f = new_from_file cf::object::thawer $uniq) {
1250	$self->clear_unique_items;	2194	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	2195	$self->_load_objects ($f);
		2196	$f->resolve_delayed_derefs;
		2197	}
		2198	}
1252	}	2199	}
1253	}
1254		2200
		2201	$f->resolve_delayed_derefs;
		2202	}
		2203
		2204	cf::cede_to_tick;
1255	# now do the right thing for maps	2205	# now do the right thing for maps
1256	$self->link_multipart_objects;	2206	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	2207	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	2208	unless $self->difficulty;
		2209	cf::cede_to_tick;
		2210
		2211	unless ($self->{deny_activate}) {
		2212	$self->decay_objects;
		2213	$self->fix_auto_apply;
		2214	$self->update_buttons;
		2215	cf::cede_to_tick;
1268	$self->activate;	2216	$self->activate;
1269	}	2217	}
1270		2218
		2219	$self->{last_save} = $cf::RUNTIME;
		2220	$self->last_access ($cf::RUNTIME);
		2221
1271	$self->in_memory (cf::MAP_IN_MEMORY);	2222	$self->in_memory (cf::MAP_ACTIVE);
1272	}	2223	}
1273		2224
1274	sub load_map_sync {	2225	$self->post_load;
		2226
		2227	1
		2228	}
		2229
		2230	# customize the map for a given player, i.e.
		2231	# return the _real_ map. used by e.g. per-player
		2232	# maps to change the path to ~playername/mappath
		2233	sub customise_for {
		2234	my ($self, $ob) = @_;
		2235
		2236	return find "~" . $ob->name . "/" . $self->{path}
		2237	if $self->per_player;
		2238
		2239	# return find "?party/" . $ob->name . "/" . $self->{path}
		2240	# if $self->per_party;
		2241
		2242	$self
		2243	}
		2244
		2245	# find and load all maps in the 3x3 area around a map
		2246	sub load_neighbours {
		2247	my ($map) = @_;
		2248
		2249	my @neigh; # diagonal neighbours
		2250
		2251	for (0 .. 3) {
		2252	my $neigh = $map->tile_path ($_)
		2253	or next;
		2254	$neigh = find $neigh, $map
		2255	or next;
		2256	$neigh->load;
		2257
		2258	# now find the diagonal neighbours
		2259	push @neigh,
		2260	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2261	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2262	}
		2263
		2264	for (grep defined $_->[0], @neigh) {
		2265	my ($path, $origin) = @$_;
		2266	my $neigh = find $path, $origin
		2267	or next;
		2268	$neigh->load;
		2269	}
		2270	}
		2271
		2272	sub find_sync {
1275	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1276		2274
1277	#warn "load_map_sync<$path, $origin>\n";#d#	2275	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2276	if $Coro::current == $Coro::main;
1278		2277
1279	cf::sync_job {	2278	find $path, $origin
1280	my $map = cf::map::find_map $path, $origin	2279	}
1281	or return;	2280
		2281	sub do_load_sync {
		2282	my ($map) = @_;
		2283
		2284	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2285	if $Coro::current == $Coro::main;
		2286
1282	$map->load;	2287	$map->load;
1283	$map	2288	}
		2289
		2290	our %MAP_PREFETCH;
		2291	our $MAP_PREFETCHER = undef;
		2292
		2293	sub find_async {
		2294	my ($path, $origin, $load) = @_;
		2295
		2296	$path = normalise $path, $origin && $origin->{path};
		2297
		2298	if (my $map = $cf::MAP{$path}) {
		2299	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2300	}
		2301
		2302	$MAP_PREFETCH{$path} |= $load;
		2303
		2304	$MAP_PREFETCHER ||= cf::async {
		2305	$Coro::current->{desc} = "map prefetcher";
		2306
		2307	while (%MAP_PREFETCH) {
		2308	while (my ($k, $v) = each %MAP_PREFETCH) {
		2309	if (my $map = find $k) {
		2310	$map->load if $v;
		2311	}
		2312
		2313	delete $MAP_PREFETCH{$k};
		2314	}
		2315	}
		2316	undef $MAP_PREFETCHER;
		2317	};
		2318	$MAP_PREFETCHER->prio (6);
		2319
		2320	()
		2321	}
		2322
		2323	# common code, used by both ->save and ->swapout
		2324	sub _save {
		2325	my ($self) = @_;
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328
		2329	return unless $self->dirty;
		2330
		2331	my $save = $self->save_path; utf8::encode $save;
		2332	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2333
		2334	$self->{load_path} = $save;
		2335
		2336	return if $self->{deny_save};
		2337
		2338	local $self->{last_access} = $self->last_access;#d#
		2339
		2340	cf::async {
		2341	$Coro::current->{desc} = "map player save";
		2342	$_->contr->save for $self->players;
		2343	};
		2344
		2345	cf::get_slot 0.02;
		2346
		2347	if ($uniq) {
		2348	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2349	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2350	} else {
		2351	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1284	}	2352	}
1285	}	2353	}
1286		2354
1287	sub save {	2355	sub save {
1288	my ($self) = @_;	2356	my ($self) = @_;
1289		2357
1290	$self->{last_save} = $cf::RUNTIME;	2358	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2359
1292	return unless $self->dirty;	2360	$self->_save;
1293
1294	my $save = $self->{path}->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1296
1297	$self->{load_path} = $save;
1298
1299	return if $self->{deny_save};
1300
1301	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}
1307	}	2361	}
1308		2362
1309	sub swap_out {	2363	sub swap_out {
1310	my ($self) = @_;	2364	my ($self) = @_;
1311		2365
		2366	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2367
		2368	return if $self->in_memory != cf::MAP_ACTIVE;
		2369	return if $self->{deny_save};
1312	return if $self->players;	2370	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};
1315		2371
		2372	# first deactivate the map and "unlink" it from the core
		2373	$self->deactivate;
		2374	$_->clear_links_to ($self) for values %cf::MAP;
		2375	$self->in_memory (cf::MAP_SWAPPED);
		2376
		2377	# then atomically save
1316	$self->save;	2378	$self->_save;
		2379
		2380	# then free the map
1317	$self->clear;	2381	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2382	}
1320		2383
1321	sub reset_at {	2384	sub reset_at {
1322	my ($self) = @_;	2385	my ($self) = @_;
1323		2386
1324	# TODO: safety, remove and allow resettable per-player maps	2387	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2388	return 1e99 if $self->{deny_reset};
1327		2389
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2390	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2391	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2392
…		…
1335	my ($self) = @_;	2397	my ($self) = @_;
1336		2398
1337	$self->reset_at <= $cf::RUNTIME	2399	$self->reset_at <= $cf::RUNTIME
1338	}	2400	}
1339		2401
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2402	sub reset {
1362	my ($self) = @_;	2403	my ($self) = @_;
1363		2404
		2405	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2406
1364	return if $self->players;	2407	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2408
1367	warn "resetting map ", $self->path;#d#	2409	cf::trace "resetting map ", $self->path, "\n";
		2410
		2411	$self->in_memory (cf::MAP_SWAPPED);
		2412
		2413	# need to save uniques path
		2414	unless ($self->{deny_save}) {
		2415	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2416
		2417	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2418	if $uniq;
		2419	}
1368		2420
1369	delete $cf::MAP{$self->path};	2421	delete $cf::MAP{$self->path};
1370		2422
		2423	$self->deactivate;
1371	$_->clear_links_to ($self) for values %cf::MAP;	2424	$_->clear_links_to ($self) for values %cf::MAP;
		2425	$self->clear;
1372		2426
1373	$self->unlink_save;	2427	$self->unlink_save;
1374	$self->destroy;	2428	$self->destroy;
1375	}	2429	}
1376		2430
1377	my $nuke_counter = "aaaa";	2431	my $nuke_counter = "aaaa";
1378		2432
1379	sub nuke {	2433	sub nuke {
1380	my ($self) = @_;	2434	my ($self) = @_;
1381		2435
		2436	{
		2437	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2438
		2439	delete $cf::MAP{$self->path};
		2440
		2441	$self->unlink_save;
		2442
		2443	bless $self, "cf::map::wrap";
		2444	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2445	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2446	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2447	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2448
		2449	$cf::MAP{$self->path} = $self;
		2450	}
		2451
1385	$self->reset; # polite request, might not happen	2452	$self->reset; # polite request, might not happen
1386	}	2453	}
1387		2454
1388	sub customise_for {	2455	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2456
1391	if ($map->per_player) {	2457	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2458	maps. May block.
		2459
		2460	=cut
		2461
		2462	sub tmp_maps() {
1393	}	2463	[
1394		2464	map {
1395	$map	2465	utf8::decode $_;
		2466	/\.map$/
		2467	? normalise $_
		2468	: ()
		2469	} @{ aio_readdir $TMPDIR or [] }
		2470	]
1396	}	2471	}
1397		2472
1398	sub emergency_save {	2473	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2474
1401	warn "enter emergency map save\n";	2475	Returns an arrayref with all map paths of currently instantiated and saved
		2476	random maps. May block.
1402		2477
1403	cf::sync_job {	2478	=cut
1404	warn "begin emergency map save\n";	2479
1405	$_->save for values %cf::MAP;	2480	sub random_maps() {
		2481	[
		2482	map {
		2483	utf8::decode $_;
		2484	/\.map$/
		2485	? normalise "?random/$_"
		2486	: ()
		2487	} @{ aio_readdir $RANDOMDIR or [] }
		2488	]
		2489	}
		2490
		2491	=item cf::map::unique_maps
		2492
		2493	Returns an arrayref of paths of all shared maps that have
		2494	instantiated unique items. May block.
		2495
		2496	=cut
		2497
		2498	sub unique_maps() {
		2499	[
		2500	map {
		2501	utf8::decode $_;
		2502	s/\.map$//; # TODO future compatibility hack
		2503	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2504	? ()
		2505	: normalise $_
		2506	} @{ aio_readdir $UNIQUEDIR or [] }
		2507	]
		2508	}
		2509
		2510	=item cf::map::static_maps
		2511
		2512	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2513	file in the shared directory excluding F</styles> and F</editor>). May
		2514	block.
		2515
		2516	=cut
		2517
		2518	sub static_maps() {
		2519	my @dirs = "";
		2520	my @maps;
		2521
		2522	while (@dirs) {
		2523	my $dir = shift @dirs;
		2524
		2525	next if $dir eq "/styles" || $dir eq "/editor";
		2526
		2527	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2528	or return;
		2529
		2530	for (@$files) {
		2531	s/\.map$// or next;
		2532	utf8::decode $_;
		2533	push @maps, "$dir/$_";
		2534	}
		2535
		2536	push @dirs, map "$dir/$_", @$dirs;
1406	};	2537	}
1407		2538
1408	warn "end emergency map save\n";	2539	\@maps
		2540	}
		2541
		2542	=back
		2543
		2544	=head3 cf::object
		2545
		2546	=cut
		2547
		2548	package cf::object;
		2549
		2550	=over 4
		2551
		2552	=item $ob->inv_recursive
		2553
		2554	Returns the inventory of the object I<and> their inventories, recursively,
		2555	but I<not> the object itself.
		2556
		2557	=cut
		2558
		2559	sub inv_recursive_;
		2560	sub inv_recursive_ {
		2561	map { $_, inv_recursive_ $_->inv } @_
		2562	}
		2563
		2564	sub inv_recursive {
		2565	inv_recursive_ inv $_[0]
		2566	}
		2567
		2568	=item $ref = $ob->ref
		2569
		2570	Creates and returns a persistent reference to an object that can be stored as a string.
		2571
		2572	=item $ob = cf::object::deref ($refstring)
		2573
		2574	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2575	even if the object actually exists. May block.
		2576
		2577	=cut
		2578
		2579	sub deref {
		2580	my ($ref) = @_;
		2581
		2582	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2583	my ($uuid, $name) = ($1, $2);
		2584	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2585	or return;
		2586	$pl->ob->uuid eq $uuid
		2587	or return;
		2588
		2589	$pl->ob
		2590	} else {
		2591	warn "$ref: cannot resolve object reference\n";
		2592	undef
		2593	}
1409	}	2594	}
1410		2595
1411	package cf;	2596	package cf;
1412		2597
1413	=back	2598	=back
1414
1415		2599
1416	=head3 cf::object::player	2600	=head3 cf::object::player
1417		2601
1418	=over 4	2602	=over 4
1419		2603
…		…
1422	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2606	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1423	can be C<undef>. Does the right thing when the player is currently in a	2607	can be C<undef>. Does the right thing when the player is currently in a
1424	dialogue with the given NPC character.	2608	dialogue with the given NPC character.
1425		2609
1426	=cut	2610	=cut
		2611
		2612	our $SAY_CHANNEL = {
		2613	id => "say",
		2614	title => "Map",
		2615	reply => "say ",
		2616	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2617	};
		2618
		2619	our $CHAT_CHANNEL = {
		2620	id => "chat",
		2621	title => "Chat",
		2622	reply => "chat ",
		2623	tooltip => "Player chat and shouts, global to the server.",
		2624	};
1427		2625
1428	# rough implementation of a future "reply" method that works	2626	# rough implementation of a future "reply" method that works
1429	# with dialog boxes.	2627	# with dialog boxes.
1430	#TODO: the first argument must go, split into a $npc->reply_to ( method	2628	#TODO: the first argument must go, split into a $npc->reply_to ( method
1431	sub cf::object::player::reply($$$;$) {	2629	sub cf::object::player::reply($$$;$) {
…		…
1433		2631
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2632	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2633
1436	if ($self->{record_replies}) {	2634	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2635	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2636
1438	} else {	2637	} else {
		2638	my $pl = $self->contr;
		2639
		2640	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2641	my $dialog = $pl->{npc_dialog};
		2642	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2643
		2644	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2645	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2646	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2647	}
1441	}	2648	}
		2649	}
		2650
		2651	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2652
		2653	=cut
		2654
		2655	sub cf::object::send_msg {
		2656	my $pl = shift->contr
		2657	or return;
		2658	$pl->send_msg (@_);
1442	}	2659	}
1443		2660
1444	=item $player_object->may ("access")	2661	=item $player_object->may ("access")
1445		2662
1446	Returns wether the given player is authorized to access resource "access"	2663	Returns wether the given player is authorized to access resource "access"
…		…
1459		2676
1460	=item $player_object->enter_link	2677	=item $player_object->enter_link
1461		2678
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2679	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2680
1464	The player should be reaosnably safe there for short amounts of time. You	2681	The player should be reasonably safe there for short amounts of time (e.g.
1465	I<MUST> call C<leave_link> as soon as possible, though.	2682	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2683	though, as the player cannot control the character while it is on the link
		2684	map.
		2685
		2686	Will never block.
1466		2687
1467	=item $player_object->leave_link ($map, $x, $y)	2688	=item $player_object->leave_link ($map, $x, $y)
1468		2689
1469	Moves the player out of the specila link map onto the given map. If the	2690	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2691	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2692	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2693	fails, to the emergency map position.
1473		2694
1474	Might block.	2695	Might block.
1475		2696
1476	=cut	2697	=cut
		2698
		2699	sub link_map {
		2700	unless ($LINK_MAP) {
		2701	$LINK_MAP = cf::map::find "{link}"
		2702	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2703	$LINK_MAP->load;
		2704	}
		2705
		2706	$LINK_MAP
		2707	}
1477		2708
1478	sub cf::object::player::enter_link {	2709	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2710	my ($self) = @_;
1480		2711
1481	$self->deactivate_recursive;	2712	$self->deactivate_recursive;
1482		2713
1483	return if $self->map == $LINK_MAP;	2714	++$self->{_link_recursion};
		2715
		2716	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2717
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2719	if $self->map && $self->map->{path} ne "{link}";
1487		2720
1488	$self->enter_map ($LINK_MAP, 20, 20);	2721	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1489	}	2722	}
1490		2723
1491	sub cf::object::player::leave_link {	2724	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2725	my ($self, $map, $x, $y) = @_;
		2726
		2727	return unless $self->contr->active;
1493		2728
1494	my $link_pos = delete $self->{_link_pos};	2729	my $link_pos = delete $self->{_link_pos};
1495		2730
1496	unless ($map) {	2731	unless ($map) {
1497	# restore original map position	2732	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2733	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2734	$map = cf::map::find $map;
1500		2735
1501	unless ($map) {	2736	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2737	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2738	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2739	or die "FATAL: cannot load emergency map\n";
1505	}	2740	}
1506	}	2741	}
1507		2742
1508	($x, $y) = (-1, -1)	2743	($x, $y) = (-1, -1)
1509	unless (defined $x) && (defined $y);	2744	unless (defined $x) && (defined $y);
1510		2745
1511	# use -1 or undef as default coordinates, not 0, 0	2746	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2747	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2748	if $x <= 0 && $y <= 0;
1514		2749
1515	$map->load;	2750	$map->load;
		2751	$map->load_neighbours;
1516		2752
		2753	return unless $self->contr->active;
		2754
		2755	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2756	if ($self->enter_map ($map, $x, $y)) {
		2757	# entering was successful
		2758	delete $self->{_link_recursion};
		2759	# only activate afterwards, to support waiting in hooks
1517	$self->activate_recursive;	2760	$self->activate_recursive;
1518	$self->enter_map ($map, $x, $y);
1519	}
1520
1521	cf::player->attach (
1522	on_logout => sub {
1523	my ($pl) = @_;
1524
1525	# abort map switching before logout
1526	if ($pl->ob->{_link_pos}) {
1527	cf::sync_job {
1528	$pl->ob->leave_link
1529	};
1530	}
1531	},	2761	}
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2762
1535	# try to abort aborted map switching on player login :)	2763	}
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548		2764
1549	=item $player_object->goto_map ($path, $x, $y)	2765	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1550		2766
1551	=cut	2767	Moves the player to the given map-path and coordinates by first freezing
		2768	her, loading and preparing them map, calling the provided $check callback
		2769	that has to return the map if sucecssful, and then unfreezes the player on
		2770	the new (success) or old (failed) map position. In either case, $done will
		2771	be called at the end of this process.
1552		2772
		2773	Note that $check will be called with a potentially non-loaded map, so if
		2774	it needs a loaded map it has to call C<< ->load >>.
		2775
		2776	=cut
		2777
		2778	our $GOTOGEN;
		2779
1553	sub cf::object::player::goto_map {	2780	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2781	my ($self, $path, $x, $y, $check, $done) = @_;
		2782
		2783	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2784	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2785	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2786	($path, $x, $y) = @$EMERGENCY_POSITION;
		2787	}
		2788
		2789	# do generation counting so two concurrent goto's will be executed in-order
		2790	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2791
1556	$self->enter_link;	2792	$self->enter_link;
1557		2793
1558	(Coro::async {	2794	(async {
1559	$path = new cf::path $path;	2795	$Coro::current->{desc} = "player::goto $path $x $y";
1560		2796
1561	my $map = cf::map::find_map $path->as_string;	2797	# *tag paths override both path and x|y
		2798	if ($path =~ /^\*(.*)$/) {
		2799	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2800	my $ob = $obs[rand @obs];
		2801
		2802	# see if we actually can go there
		2803	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2804	$ob = $obs[rand @obs];
		2805	} else {
		2806	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2807	}
		2808	# else put us there anyways for now #d#
		2809
		2810	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2811	} else {
		2812	($path, $x, $y) = (undef, undef, undef);
		2813	}
		2814	}
		2815
		2816	my $map = eval {
		2817	my $map = defined $path ? cf::map::find $path : undef;
		2818
		2819	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2820	$map = $map->customise_for ($self);
1563		2821	$map = $check->($map, $x, $y, $self) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2822	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2823	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2824	}
1568		2825
		2826	$map
		2827	};
		2828
		2829	if ($@) {
		2830	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	LOG llevError | logBacktrace, Carp::longmess $@;
		2832	}
		2833
		2834	if ($gen == $self->{_goto_generation}) {
		2835	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2836	$self->leave_link ($map, $x, $y);
		2837	}
		2838
		2839	$done->($self) if $done;
1570	})->prio (1);	2840	})->prio (1);
1571	}	2841	}
1572		2842
1573	=item $player_object->enter_exit ($exit_object)	2843	=item $player_object->enter_exit ($exit_object)
1574		2844
…		…
1576		2846
1577	sub parse_random_map_params {	2847	sub parse_random_map_params {
1578	my ($spec) = @_;	2848	my ($spec) = @_;
1579		2849
1580	my $rmp = { # defaults	2850	my $rmp = { # defaults
1581	xsize => 10,	2851	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2852	ysize => (cf::rndm 15, 40),
		2853	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2854	#layout => string,
1583	};	2855	};
1584		2856
1585	for (split /\n/, $spec) {	2857	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2858	my ($k, $v) = split /\s+/, $_, 2;
1587		2859
…		…
1599	# that depends on the exit object	2871	# that depends on the exit object
1600		2872
1601	my $rmp = parse_random_map_params $exit->msg;	2873	my $rmp = parse_random_map_params $exit->msg;
1602		2874
1603	if ($exit->map) {	2875	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2876	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2877	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2878	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2879	$rmp->{origin_y} = $exit->y;
		2880
		2881	$exit->map->touch;
1608	}	2882	}
1609		2883
1610	$rmp->{random_seed} ||= $exit->random_seed;	2884	$rmp->{random_seed} ||= $exit->random_seed;
1611		2885
1612	my $data = cf::to_json $rmp;	2886	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1613	my $md5 = Digest::MD5::md5_hex $data;	2887	my $md5 = Digest::MD5::md5_hex $data;
		2888	my $meta = "$RANDOMDIR/$md5.meta";
1614		2889
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2891	aio_write $fh, 0, (length $data), $data, 0;
		2892	undef $fh;
		2893	aio_rename "$meta~", $meta;
1617		2894
		2895	my $slaying = "?random/$md5";
		2896
		2897	if ($exit->valid) {
1618	$exit->slaying ("?random/$md5");	2898	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2899	$exit->msg (undef);
		2900	}
1620	}	2901	}
1621	}	2902	}
1622		2903
1623	sub cf::object::player::enter_exit {	2904	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2905	my ($self, $exit) = @_;
1625		2906
1626	return unless $self->type == cf::PLAYER;	2907	return unless $self->type == cf::PLAYER;
1627		2908
1628	$self->enter_link;	2909	$self->enter_link;
1629		2910
1630	(Coro::async {	2911	(async {
		2912	$Coro::current->{desc} = "enter_exit";
		2913
1631	unless (eval {	2914	unless (eval {
		2915	$self->deactivate_recursive; # just to be sure
1632		2916
		2917	# random map handling
		2918	{
		2919	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2920
1633	prepare_random_map $exit	2921	prepare_random_map $exit
1634	if $exit->slaying eq "/!";	2922	if $exit->slaying eq "/!";
		2923	}
1635		2924
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2925	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2926	my $x = $exit->stats->hp;
		2927	my $y = $exit->stats->sp;
1638		2928
		2929	$self->goto ($map, $x, $y);
		2930
		2931	# if exit is damned, update players death & WoR home-position
		2932	$self->contr->savebed ($map, $x, $y)
		2933	if $exit->flag (cf::FLAG_DAMNED);
		2934
1639	1;	2935	1
1640	}) {	2936	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2937	$self->message ("Something went wrong deep within the deliantra server. "
1642	. "I'll try to bring you back to the map you were before. "	2938	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2939	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2940	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2941
1646	warn "ERROR in enter_exit: $@";	2942	error "ERROR in enter_exit: $@";
1647	$self->leave_link;	2943	$self->leave_link;
1648	}	2944	}
1649	})->prio (1);	2945	})->prio (1);
1650	}	2946	}
1651		2947
…		…
1662		2958
1663	sub cf::client::send_drawinfo {	2959	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2960	my ($self, $text, $flags) = @_;
1665		2961
1666	utf8::encode $text;	2962	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2963	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2964	}
1669		2965
		2966	=item $client->send_big_packet ($pkt)
		2967
		2968	Like C<send_packet>, but tries to compress large packets, and fragments
		2969	them as required.
		2970
		2971	=cut
		2972
		2973	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2974
		2975	sub cf::client::send_big_packet {
		2976	my ($self, $pkt) = @_;
		2977
		2978	# try lzf for large packets
		2979	$pkt = "lzf " . Compress::LZF::compress $pkt
		2980	if 1024 <= length $pkt and $self->{can_lzf};
		2981
		2982	# split very large packets
		2983	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2984	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2985	$pkt = "frag";
		2986	}
		2987
		2988	$self->send_packet ($pkt);
		2989	}
		2990
		2991	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2992
		2993	Send a drawinfo or msg packet to the client, formatting the msg for the
		2994	client if neccessary. C<$type> should be a string identifying the type of
		2995	the message, with C<log> being the default. If C<$color> is negative, suppress
		2996	the message unless the client supports the msg packet.
		2997
		2998	=cut
		2999
		3000	# non-persistent channels (usually the info channel)
		3001	our %CHANNEL = (
		3002	"c/motd" => {
		3003	id => "infobox",
		3004	title => "MOTD",
		3005	reply => undef,
		3006	tooltip => "The message of the day",
		3007	},
		3008	"c/identify" => {
		3009	id => "infobox",
		3010	title => "Identify",
		3011	reply => undef,
		3012	tooltip => "Items recently identified",
		3013	},
		3014	"c/examine" => {
		3015	id => "infobox",
		3016	title => "Examine",
		3017	reply => undef,
		3018	tooltip => "Signs and other items you examined",
		3019	},
		3020	"c/shopinfo" => {
		3021	id => "infobox",
		3022	title => "Shop Info",
		3023	reply => undef,
		3024	tooltip => "What your bargaining skill tells you about the shop",
		3025	},
		3026	"c/book" => {
		3027	id => "infobox",
		3028	title => "Book",
		3029	reply => undef,
		3030	tooltip => "The contents of a note or book",
		3031	},
		3032	"c/lookat" => {
		3033	id => "infobox",
		3034	title => "Look",
		3035	reply => undef,
		3036	tooltip => "What you saw there",
		3037	},
		3038	"c/who" => {
		3039	id => "infobox",
		3040	title => "Players",
		3041	reply => undef,
		3042	tooltip => "Shows players who are currently online",
		3043	},
		3044	"c/body" => {
		3045	id => "infobox",
		3046	title => "Body Parts",
		3047	reply => undef,
		3048	tooltip => "Shows which body parts you posess and are available",
		3049	},
		3050	"c/statistics" => {
		3051	id => "infobox",
		3052	title => "Statistics",
		3053	reply => undef,
		3054	tooltip => "Shows your primary statistics",
		3055	},
		3056	"c/skills" => {
		3057	id => "infobox",
		3058	title => "Skills",
		3059	reply => undef,
		3060	tooltip => "Shows your experience per skill and item power",
		3061	},
		3062	"c/shopitems" => {
		3063	id => "infobox",
		3064	title => "Shop Items",
		3065	reply => undef,
		3066	tooltip => "Shows the items currently for sale in this shop",
		3067	},
		3068	"c/resistances" => {
		3069	id => "infobox",
		3070	title => "Resistances",
		3071	reply => undef,
		3072	tooltip => "Shows your resistances",
		3073	},
		3074	"c/pets" => {
		3075	id => "infobox",
		3076	title => "Pets",
		3077	reply => undef,
		3078	tooltip => "Shows information abotu your pets/a specific pet",
		3079	},
		3080	"c/perceiveself" => {
		3081	id => "infobox",
		3082	title => "Perceive Self",
		3083	reply => undef,
		3084	tooltip => "You gained detailed knowledge about yourself",
		3085	},
		3086	"c/uptime" => {
		3087	id => "infobox",
		3088	title => "Uptime",
		3089	reply => undef,
		3090	tooltip => "How long the server has been running since last restart",
		3091	},
		3092	"c/mapinfo" => {
		3093	id => "infobox",
		3094	title => "Map Info",
		3095	reply => undef,
		3096	tooltip => "Information related to the maps",
		3097	},
		3098	"c/party" => {
		3099	id => "party",
		3100	title => "Party",
		3101	reply => "gsay ",
		3102	tooltip => "Messages and chat related to your party",
		3103	},
		3104	"c/death" => {
		3105	id => "death",
		3106	title => "Death",
		3107	reply => undef,
		3108	tooltip => "Reason for and more info about your most recent death",
		3109	},
		3110	"c/say" => $SAY_CHANNEL,
		3111	"c/chat" => $CHAT_CHANNEL,
		3112	);
		3113
		3114	sub cf::client::send_msg {
		3115	my ($self, $channel, $msg, $color, @extra) = @_;
		3116
		3117	$msg = $self->pl->expand_cfpod ($msg)
		3118	unless $color & cf::NDI_VERBATIM;
		3119
		3120	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3121
		3122	# check predefined channels, for the benefit of C
		3123	if ($CHANNEL{$channel}) {
		3124	$channel = $CHANNEL{$channel};
		3125
		3126	$self->ext_msg (channel_info => $channel);
		3127	$channel = $channel->{id};
		3128
		3129	} elsif (ref $channel) {
		3130	# send meta info to client, if not yet sent
		3131	unless (exists $self->{channel}{$channel->{id}}) {
		3132	$self->{channel}{$channel->{id}} = $channel;
		3133	$self->ext_msg (channel_info => $channel);
		3134	}
		3135
		3136	$channel = $channel->{id};
		3137	}
		3138
		3139	return unless @extra || length $msg;
		3140
		3141	# default colour, mask it out
		3142	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3143	if $color & cf::NDI_DEF;
		3144
		3145	my $pkt = "msg "
		3146	. $self->{json_coder}->encode (
		3147	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3148	);
		3149
		3150	$self->send_big_packet ($pkt);
		3151	}
		3152
		3153	=item $client->ext_msg ($type, @msg)
		3154
		3155	Sends an ext event to the client.
		3156
		3157	=cut
		3158
		3159	sub cf::client::ext_msg($$@) {
		3160	my ($self, $type, @msg) = @_;
		3161
		3162	if ($self->extcmd == 2) {
		3163	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3164	} elsif ($self->extcmd == 1) { # TODO: remove
		3165	push @msg, msgtype => "event_$type";
		3166	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3167	}
		3168	}
		3169
		3170	=item $client->ext_reply ($msgid, @msg)
		3171
		3172	Sends an ext reply to the client.
		3173
		3174	=cut
		3175
		3176	sub cf::client::ext_reply($$@) {
		3177	my ($self, $id, @msg) = @_;
		3178
		3179	if ($self->extcmd == 2) {
		3180	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3181	} elsif ($self->extcmd == 1) {
		3182	#TODO: version 1, remove
		3183	unshift @msg, msgtype => "reply", msgid => $id;
		3184	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3185	}
		3186	}
1670		3187
1671	=item $success = $client->query ($flags, "text", \&cb)	3188	=item $success = $client->query ($flags, "text", \&cb)
1672		3189
1673	Queues a query to the client, calling the given callback with	3190	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3191	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3192	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		3193
1677	Queries can fail, so check the return code. Or don't, as queries will become	3194	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	3195	become reliable at some point in the future.
1679		3196
1680	=cut	3197	=cut
1681		3198
1682	sub cf::client::query {	3199	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	3200	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	3208	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3209	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		3210
1694	$self->send_packet ($self->{query_queue}[0][0])	3211	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	3212	if @{ $self->{query_queue} } == 1;
		3213
		3214	1
1696	}	3215	}
1697		3216
1698	cf::client->attach (	3217	cf::client->attach (
		3218	on_connect => sub {
		3219	my ($ns) = @_;
		3220
		3221	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3222	},
1699	on_reply => sub {	3223	on_reply => sub {
1700	my ($ns, $msg) = @_;	3224	my ($ns, $msg) = @_;
1701		3225
1702	# this weird shuffling is so that direct followup queries	3226	# this weird shuffling is so that direct followup queries
1703	# get handled first	3227	# get handled first
1704	my $queue = delete $ns->{query_queue};	3228	my $queue = delete $ns->{query_queue}
		3229	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		3230
1706	(shift @$queue)->[1]->($msg);	3231	(shift @$queue)->[1]->($msg);
		3232	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		3233
1708	push @{ $ns->{query_queue} }, @$queue;	3234	push @{ $ns->{query_queue} }, @$queue;
1709		3235
1710	if (@{ $ns->{query_queue} } == @$queue) {	3236	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	3237	if (@$queue) {
…		…
1713	} else {	3239	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3240	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	3241	}
1716	}	3242	}
1717	},	3243	},
		3244	on_exticmd => sub {
		3245	my ($ns, $buf) = @_;
		3246
		3247	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3248
		3249	if (ref $msg) {
		3250	my ($type, $reply, @payload) =
		3251	"ARRAY" eq ref $msg
		3252	? @$msg
		3253	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3254
		3255	my @reply;
		3256
		3257	if (my $cb = $EXTICMD{$type}) {
		3258	@reply = $cb->($ns, @payload);
		3259	}
		3260
		3261	$ns->ext_reply ($reply, @reply)
		3262	if $reply;
		3263
		3264	} else {
		3265	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3266	}
		3267
		3268	cf::override;
		3269	},
1718	);	3270	);
1719		3271
1720	=item $client->coro (\&cb)	3272	=item $client->async (\&cb)
1721		3273
1722	Create a new coroutine, running the specified callback. The coroutine will	3274	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	3275	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	3276	or loss of connection).
1725		3277
1726	=cut	3278	=cut
1727		3279
1728	sub cf::client::coro {	3280	sub cf::client::async {
1729	my ($self, $cb) = @_;	3281	my ($self, $cb) = @_;
1730		3282
1731	my $coro; $coro = async {	3283	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		3284
1738	$coro->on_destroy (sub {	3285	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	3286	delete $self->{_coro}{$coro+0};
1740	});	3287	});
1741		3288
…		…
1743		3290
1744	$coro	3291	$coro
1745	}	3292	}
1746		3293
1747	cf::client->attach (	3294	cf::client->attach (
1748	on_destroy => sub {	3295	on_client_destroy => sub {
1749	my ($ns) = @_;	3296	my ($ns) = @_;
1750		3297
1751	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3298	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1752	},	3299	},
1753	);	3300	);
…		…
1768	our $safe = new Safe "safe";	3315	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	3316	our $safe_hole = new Safe::Hole;
1770		3317
1771	$SIG{FPE} = 'IGNORE';	3318	$SIG{FPE} = 'IGNORE';
1772		3319
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3320	$safe->permit_only (Opcode::opset qw(
		3321	:base_core :base_mem :base_orig :base_math :base_loop
		3322	grepstart grepwhile mapstart mapwhile
		3323	sort time
		3324	));
1774		3325
1775	# here we export the classes and methods available to script code	3326	# here we export the classes and methods available to script code
1776		3327
1777	=pod	3328	=pod
1778		3329
1779	The following fucntions and emthods are available within a safe environment:	3330	The following functions and methods are available within a safe environment:
1780		3331
1781	cf::object contr pay_amount pay_player map	3332	cf::object
		3333	contr pay_amount pay_player map x y force_find force_add destroy
		3334	insert remove name archname title slaying race decrease split
		3335	value
		3336
1782	cf::object::player player	3337	cf::object::player
1783	cf::player peaceful	3338	player
1784	cf::map trigger	3339
		3340	cf::player
		3341	peaceful
		3342
		3343	cf::map
		3344	trigger
1785		3345
1786	=cut	3346	=cut
1787		3347
1788	for (	3348	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	3349	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3350	insert remove inv nrof name archname title slaying race
		3351	decrease split destroy change_exp value msg lore send_msg)],
1790	["cf::object::player" => qw(player)],	3352	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	3353	["cf::player" => qw(peaceful send_msg)],
1792	["cf::map" => qw(trigger)],	3354	["cf::map" => qw(trigger)],
1793	) {	3355	) {
1794	no strict 'refs';
1795	my ($pkg, @funs) = @$_;	3356	my ($pkg, @funs) = @$_;
1796	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3357	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1797	for @funs;	3358	for @funs;
1798	}	3359	}
1799		3360
…		…
1814		3375
1815	my $qcode = $code;	3376	my $qcode = $code;
1816	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3377	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1817	$qcode =~ s/\n/\\n/g;	3378	$qcode =~ s/\n/\\n/g;
1818		3379
		3380	%vars = (_dummy => 0) unless %vars;
		3381
		3382	my @res;
1819	local $_;	3383	local $_;
1820	local @safe::cf::_safe_eval_args = values %vars;
1821		3384
1822	my $eval =	3385	my $eval =
1823	"do {\n"	3386	"do {\n"
1824	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3387	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1825	. "#line 0 \"{$qcode}\"\n"	3388	. "#line 0 \"{$qcode}\"\n"
1826	. $code	3389	. $code
1827	. "\n}"	3390	. "\n}"
1828	;	3391	;
1829		3392
		3393	if ($CFG{safe_eval}) {
1830	sub_generation_inc;	3394	sub_generation_inc;
		3395	local @safe::cf::_safe_eval_args = values %vars;
1831	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3396	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1832	sub_generation_inc;	3397	sub_generation_inc;
		3398	} else {
		3399	local @cf::_safe_eval_args = values %vars;
		3400	@res = wantarray ? eval eval : scalar eval $eval;
		3401	}
1833		3402
1834	if ($@) {	3403	if ($@) {
1835	warn "$@";	3404	warn "$@",
1836	warn "while executing safe code '$code'\n";	3405	"while executing safe code '$code'\n",
1837	warn "with arguments " . (join " ", %vars) . "\n";	3406	"with arguments " . (join " ", %vars) . "\n";
1838	}	3407	}
1839		3408
1840	wantarray ? @res : $res[0]	3409	wantarray ? @res : $res[0]
1841	}	3410	}
1842		3411
…		…
1856	=cut	3425	=cut
1857		3426
1858	sub register_script_function {	3427	sub register_script_function {
1859	my ($fun, $cb) = @_;	3428	my ($fun, $cb) = @_;
1860		3429
1861	no strict 'refs';	3430	$fun = "safe::$fun" if $CFG{safe_eval};
1862	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3431	*$fun = $safe_hole->wrap ($cb);
1863	}	3432	}
1864		3433
1865	=back	3434	=back
1866		3435
1867	=cut	3436	=cut
1868		3437
1869	#############################################################################	3438	#############################################################################
		3439	# the server's init and main functions
1870		3440
1871	=head2 EXTENSION DATABASE SUPPORT	3441	sub load_facedata($) {
		3442	my ($path) = @_;
1872		3443
1873	Crossfire maintains a very simple database for extension use. It can	3444	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	3445	# for this (global event?)
1875	excludes objects.	3446	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		3447
1877	The parameter C<$family> should best start with the name of the extension	3448	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		3449
1880	=over 4	3450	trace "loading facedata from $path\n";
1881		3451
1882	=item $hashref = cf::db_get $family	3452	my $facedata = decode_storable load_file $path;
1883		3453
1884	Return a hashref for use by the extension C<$family>, which can be	3454	$facedata->{version} == 2
1885	modified. After modifications, you have to call C<cf::db_dirty> or	3455	or cf::cleanup "$path: version mismatch, cannot proceed.";
1886	C<cf::db_sync>.
1887		3456
1888	=item $value = cf::db_get $family => $key	3457	# patch in the exptable
1889		3458	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1890	Returns a single value from the database	3459	$facedata->{resource}{"res/exp_table"} = {
1891		3460	type => FT_RSRC,
1892	=item cf::db_put $family => $hashref	3461	data => $exp_table,
1893		3462	hash => (Digest::MD5::md5 $exp_table),
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	3463	};
		3464	cf::cede_to_tick;
1943		3465
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	3466	{
		3467	my $faces = $facedata->{faceinfo};
1948		3468
1949	sub db_get($;$) {	3469	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	3470	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		3471
1955	sub db_put($$;$) {	3472	cf::face::set_visibility $idx, $info->{visibility};
1956	if (@_ >= 3) {	3473	cf::face::set_magicmap $idx, $info->{magicmap};
1957	$DB->{$_[0]}{$_[1]} = $_[2];	3474	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1958	} else {	3475	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1959	$DB->{$_[0]} = $_[1];	3476	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1960	}
1961	db_dirty;
1962	}
1963		3477
1964	cf::global->attach (	3478	cf::cede_to_tick;
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	3479	}
1969	);
1970	}
1971		3480
1972	#############################################################################	3481	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	3482	next unless $info->{smooth};
1974		3483
1975	sub cfg_load {	3484	my $idx = cf::face::find $face
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3485	or next;
1977	or return;
1978		3486
1979	local $/;	3487	if (my $smooth = cf::face::find $info->{smooth}) {
1980	*CFG = YAML::Syck::Load <$fh>;	3488	cf::face::set_smooth $idx, $smooth;
		3489	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3490	} else {
		3491	error "smooth face '$info->{smooth}' not found for face '$face'";
		3492	}
		3493
		3494	cf::cede_to_tick;
		3495	}
		3496	}
		3497
		3498	{
		3499	my $anims = $facedata->{animinfo};
		3500
		3501	while (my ($anim, $info) = each %$anims) {
		3502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3503	cf::cede_to_tick;
		3504	}
		3505
		3506	cf::anim::invalidate_all; # d'oh
		3507	}
		3508
		3509	{
		3510	my $res = $facedata->{resource};
		3511
		3512	while (my ($name, $info) = each %$res) {
		3513	if (defined $info->{type}) {
		3514	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3515
		3516	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3517	cf::face::set_type $idx, $info->{type};
		3518	} else {
		3519	$RESOURCE{$name} = $info; # unused
		3520	}
		3521
		3522	cf::cede_to_tick;
		3523	}
		3524	}
		3525
		3526	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3527
		3528	1
		3529	}
		3530
		3531	register_exticmd fx_want => sub {
		3532	my ($ns, $want) = @_;
		3533
		3534	while (my ($k, $v) = each %$want) {
		3535	$ns->fx_want ($k, $v);
		3536	}
		3537	};
		3538
		3539	sub load_resource_file($) {
		3540	my $guard = lock_acquire "load_resource_file";
		3541
		3542	my $status = load_resource_file_ $_[0];
		3543	get_slot 0.1, 100;
		3544	cf::arch::commit_load;
		3545
		3546	$status
		3547	}
		3548
		3549	sub reload_regions {
		3550	# HACK to clear player env face cache, we need some signal framework
		3551	# for this (global event?)
		3552	%ext::player_env::MUSIC_FACE_CACHE = ();
		3553
		3554	load_resource_file "$MAPDIR/regions"
		3555	or die "unable to load regions file\n";
		3556
		3557	for (cf::region::list) {
		3558	$_->{match} = qr/$_->{match}/
		3559	if exists $_->{match};
		3560	}
		3561	}
		3562
		3563	sub reload_facedata {
		3564	load_facedata "$DATADIR/facedata"
		3565	or die "unable to load facedata\n";
		3566	}
		3567
		3568	sub reload_archetypes {
		3569	load_resource_file "$DATADIR/archetypes"
		3570	or die "unable to load archetypes\n";
		3571	}
		3572
		3573	sub reload_treasures {
		3574	load_resource_file "$DATADIR/treasures"
		3575	or die "unable to load treasurelists\n";
		3576	}
		3577
		3578	sub reload_sound {
		3579	trace "loading sound config from $DATADIR/sound\n";
		3580
		3581	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3582
		3583	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3584	my $sound = $soundconf->{compat}[$_]
		3585	or next;
		3586
		3587	my $face = cf::face::find "sound/$sound->[1]";
		3588	cf::sound::set $sound->[0] => $face;
		3589	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3590	}
		3591
		3592	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3593	my $face = cf::face::find "sound/$v";
		3594	cf::sound::set $k => $face;
		3595	}
		3596	}
		3597
		3598	sub reload_resources {
		3599	trace "reloading resource files...\n";
		3600
		3601	reload_exp_table;
		3602	reload_materials;
		3603	reload_facedata;
		3604	reload_sound;
		3605	reload_archetypes;
		3606	reload_regions;
		3607	reload_treasures;
		3608
		3609	trace "finished reloading resource files\n";
		3610	}
		3611
		3612	sub reload_config {
		3613	trace "reloading config file...\n";
		3614
		3615	my $config = load_file "$CONFDIR/config";
		3616	utf8::decode $config;
		3617	*CFG = decode_yaml $config;
		3618
		3619	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3620
		3621	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3622	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3623
		3624	if (exists $CFG{mlockall}) {
		3625	eval {
		3626	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3627	and die "WARNING: m(un)lockall failed: $!\n";
		3628	};
		3629	warn $@ if $@;
		3630	}
		3631	}
		3632
		3633	sub pidfile() {
		3634	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3635	or die "$PIDFILE: $!";
		3636	flock $fh, &Fcntl::LOCK_EX
		3637	or die "$PIDFILE: flock: $!";
		3638	$fh
		3639	}
		3640
		3641	# make sure only one server instance is running at any one time
		3642	sub atomic {
		3643	my $fh = pidfile;
		3644
		3645	my $pid = <$fh>;
		3646	kill 9, $pid if $pid > 0;
		3647
		3648	seek $fh, 0, 0;
		3649	print $fh $$;
		3650	}
		3651
		3652	sub main_loop {
		3653	trace "EV::loop starting\n";
		3654	if (1) {
		3655	EV::loop;
		3656	}
		3657	trace "EV::loop returned\n";
		3658	goto &main_loop unless $REALLY_UNLOOP;
1981	}	3659	}
1982		3660
1983	sub main {	3661	sub main {
		3662	cf::init_globals; # initialise logging
		3663
		3664	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3665	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3666	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3667	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3668
		3669	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3670
1984	# we must not ever block the main coroutine	3671	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3672	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3673	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	3674	(async {
1988	Event::one_event;	3675	$Coro::current->{desc} = "IDLE BUG HANDLER";
1989	})->();	3676	EV::loop EV::LOOP_ONESHOT;
		3677	})->prio (Coro::PRIO_MAX);
1990	};	3678	};
1991		3679
1992	cfg_load;	3680	evthread_start IO::AIO::poll_fileno;
1993	db_load;	3681
		3682	cf::sync_job {
		3683	cf::incloader::init ();
		3684
		3685	cf::init_anim;
		3686	cf::init_attackmess;
		3687	cf::init_dynamic;
		3688
		3689	cf::load_settings;
		3690
		3691	reload_resources;
		3692	reload_config;
		3693	db_init;
		3694
		3695	cf::init_uuid;
		3696	cf::init_signals;
		3697	cf::init_skills;
		3698
		3699	cf::init_beforeplay;
		3700
		3701	atomic;
		3702
1994	load_extensions;	3703	load_extensions;
1995	Event::loop;	3704
		3705	utime time, time, $RUNTIMEFILE;
		3706
		3707	# no (long-running) fork's whatsoever before this point(!)
		3708	use POSIX ();
		3709	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3710
		3711	cf::_post_init 0;
		3712	};
		3713
		3714	cf::object::thawer::errors_are_fatal 0;
		3715	info "parse errors in files are no longer fatal from this point on.\n";
		3716
		3717	my $free_main; $free_main = EV::idle sub {
		3718	undef $free_main;
		3719	undef &main; # free gobs of memory :)
		3720	};
		3721
		3722	goto &main_loop;
1996	}	3723	}
1997		3724
1998	#############################################################################	3725	#############################################################################
1999	# initialisation	3726	# initialisation and cleanup
2000		3727
		3728	# install some emergency cleanup handlers
		3729	BEGIN {
		3730	our %SIGWATCHER = ();
		3731	for my $signal (qw(INT HUP TERM)) {
		3732	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3733	cf::cleanup "SIG$signal";
		3734	};
		3735	}
		3736	}
		3737
		3738	sub write_runtime_sync {
		3739	my $t0 = AE::time;
		3740
		3741	# first touch the runtime file to show we are still running:
		3742	# the fsync below can take a very very long time.
		3743
		3744	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3745
		3746	my $guard = cf::lock_acquire "write_runtime";
		3747
		3748	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3749	or return;
		3750
		3751	my $value = $cf::RUNTIME + 90 + 10;
		3752	# 10 is the runtime save interval, for a monotonic clock
		3753	# 60 allows for the watchdog to kill the server.
		3754
		3755	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3756	and return;
		3757
		3758	# always fsync - this file is important
		3759	aio_fsync $fh
		3760	and return;
		3761
		3762	# touch it again to show we are up-to-date
		3763	aio_utime $fh, undef, undef;
		3764
		3765	close $fh
		3766	or return;
		3767
		3768	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3769	and return;
		3770
		3771	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3772
		3773	1
		3774	}
		3775
		3776	our $uuid_lock;
		3777	our $uuid_skip;
		3778
		3779	sub write_uuid_sync($) {
		3780	$uuid_skip ||= $_[0];
		3781
		3782	return if $uuid_lock;
		3783	local $uuid_lock = 1;
		3784
		3785	my $uuid = "$LOCALDIR/uuid";
		3786
		3787	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3788	or return;
		3789
		3790	my $value = uuid_seq uuid_cur;
		3791
		3792	unless ($value) {
		3793	info "cowardly refusing to write zero uuid value!\n";
		3794	return;
		3795	}
		3796
		3797	my $value = uuid_str $value + $uuid_skip;
		3798	$uuid_skip = 0;
		3799
		3800	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3801	and return;
		3802
		3803	# always fsync - this file is important
		3804	aio_fsync $fh
		3805	and return;
		3806
		3807	close $fh
		3808	or return;
		3809
		3810	aio_rename "$uuid~", $uuid
		3811	and return;
		3812
		3813	trace "uuid file written ($value).\n";
		3814
		3815	1
		3816
		3817	}
		3818
		3819	sub write_uuid($$) {
		3820	my ($skip, $sync) = @_;
		3821
		3822	$sync ? write_uuid_sync $skip
		3823	: async { write_uuid_sync $skip };
		3824	}
		3825
		3826	sub emergency_save() {
		3827	my $freeze_guard = cf::freeze_mainloop;
		3828
		3829	info "emergency_perl_save: enter\n";
		3830
		3831	# this is a trade-off: we want to be very quick here, so
		3832	# save all maps without fsync, and later call a global sync
		3833	# (which in turn might be very very slow)
		3834	local $USE_FSYNC = 0;
		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
		3838
		3839	# use a peculiar iteration method to avoid tripping on perl
		3840	# refcount bugs in for. also avoids problems with players
		3841	# and maps saved/destroyed asynchronously.
		3842	info "emergency_perl_save: begin player save\n";
		3843	for my $login (keys %cf::PLAYER) {
		3844	my $pl = $cf::PLAYER{$login} or next;
		3845	$pl->valid or next;
		3846	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3847	$pl->save;
		3848	}
		3849	info "emergency_perl_save: end player save\n";
		3850
		3851	cf::write_runtime_sync; # external watchdog should not bark
		3852
		3853	info "emergency_perl_save: begin map save\n";
		3854	for my $path (keys %cf::MAP) {
		3855	my $map = $cf::MAP{$path} or next;
		3856	$map->valid or next;
		3857	$map->save;
		3858	}
		3859	info "emergency_perl_save: end map save\n";
		3860
		3861	cf::write_runtime_sync; # external watchdog should not bark
		3862
		3863	info "emergency_perl_save: begin database checkpoint\n";
		3864	BDB::db_env_txn_checkpoint $DB_ENV;
		3865	info "emergency_perl_save: end database checkpoint\n";
		3866
		3867	info "emergency_perl_save: begin write uuid\n";
		3868	write_uuid_sync 1;
		3869	info "emergency_perl_save: end write uuid\n";
		3870
		3871	cf::write_runtime_sync; # external watchdog should not bark
		3872
		3873	trace "emergency_perl_save: syncing database to disk";
		3874	BDB::db_env_txn_checkpoint $DB_ENV;
		3875
		3876	info "emergency_perl_save: starting sync\n";
		3877	IO::AIO::aio_sync sub {
		3878	info "emergency_perl_save: finished sync\n";
		3879	};
		3880
		3881	cf::write_runtime_sync; # external watchdog should not bark
		3882
		3883	trace "emergency_perl_save: flushing outstanding aio requests";
		3884	while (IO::AIO::nreqs || BDB::nreqs) {
		3885	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3886	}
		3887
		3888	cf::write_runtime_sync; # external watchdog should not bark
		3889	};
		3890
		3891	info "emergency_perl_save: leave\n";
		3892	}
		3893
		3894	sub post_cleanup {
		3895	my ($make_core) = @_;
		3896
		3897	IO::AIO::flush;
		3898
		3899	error Carp::longmess "post_cleanup backtrace"
		3900	if $make_core;
		3901
		3902	my $fh = pidfile;
		3903	unlink $PIDFILE if <$fh> == $$;
		3904	}
		3905
		3906	# a safer delete_package, copied from Symbol
		3907	sub clear_package($) {
		3908	my $pkg = shift;
		3909
		3910	# expand to full symbol table name if needed
		3911	unless ($pkg =~ /^main::.*::$/) {
		3912	$pkg = "main$pkg" if $pkg =~ /^::/;
		3913	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3914	$pkg .= '::' unless $pkg =~ /::$/;
		3915	}
		3916
		3917	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3918	my $stem_symtab = *{$stem}{HASH};
		3919
		3920	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3921	or return;
		3922
		3923	# clear all symbols
		3924	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3925	for my $name (keys %$leaf_symtab) {
		3926	_gv_clear *{"$pkg$name"};
		3927	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3928	}
		3929	}
		3930
2001	sub reload() {	3931	sub do_reload_perl() {
2002	# can/must only be called in main	3932	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3933	unless (in_main) {
2004	warn "can only reload from main coroutine\n";	3934	error "can only reload from main coroutine";
2005	return;	3935	return;
2006	}	3936	}
2007		3937
2008	warn "reloading...";	3938	return if $RELOAD++;
2009		3939
2010	local $FREEZE = 1;	3940	my $t1 = AE::time;
		3941
		3942	while ($RELOAD) {
		3943	cf::get_slot 0.1, -1, "reload_perl";
		3944	info "perl_reload: reloading...";
		3945
		3946	trace "perl_reload: entering sync_job";
		3947
		3948	cf::sync_job {
2011	cf::emergency_save;	3949	#cf::emergency_save;
2012		3950
2013	eval {	3951	trace "perl_reload: cancelling all extension coros";
2014	# if anything goes wrong in here, we should simply crash as we already saved
2015
2016	# cancel all watchers
2017	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}
2020
2021	# cancel all extension coros
2022	$_->cancel for values %EXT_CORO;	3952	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	3953	%EXT_CORO = ();
2024		3954
2025	# unload all extensions	3955	trace "perl_reload: removing commands";
2026	for (@exts) {	3956	%COMMAND = ();
2027	warn "unloading <$_>";
2028	unload_extension $_;
2029	}
2030		3957
2031	# unload all modules loaded from $LIBDIR	3958	trace "perl_reload: removing ext/exti commands";
2032	while (my ($k, $v) = each %INC) {	3959	%EXTCMD = ();
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3960	%EXTICMD = ();
2034		3961
2035	warn "removing <$k>";	3962	trace "perl_reload: unloading/nuking all extensions";
2036	delete $INC{$k};	3963	for my $pkg (@EXTS) {
		3964	trace "... unloading $pkg";
2037		3965
2038	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;
2040
2041	if (my $cb = $k->can ("unload_module")) {	3966	if (my $cb = $pkg->can ("unload")) {
		3967	eval {
2042	$cb->();	3968	$cb->($pkg);
		3969	1
		3970	} or error "$pkg unloaded, but with errors: $@";
		3971	}
		3972
		3973	trace "... clearing $pkg";
		3974	clear_package $pkg;
2043	}	3975	}
2044		3976
2045	Symbol::delete_package $k;	3977	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3978	while (my ($k, $v) = each %INC) {
		3979	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3980
		3981	trace "... unloading $k";
		3982	delete $INC{$k};
		3983
		3984	$k =~ s/\.pm$//;
		3985	$k =~ s/\//::/g;
		3986
		3987	if (my $cb = $k->can ("unload_module")) {
		3988	$cb->();
		3989	}
		3990
		3991	clear_package $k;
2046	}	3992	}
2047		3993
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	3994	trace "perl_reload: getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3995	clear_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3996	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3997
2056	# remove register_script_function callbacks	3998	trace "perl_reload: unloading cf.pm \"a bit\"";
2057	# TODO
2058
2059	# unload cf.pm "a bit"
2060	delete $INC{"cf.pm"};	3999	delete $INC{"cf.pm"};
		4000	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2061		4001
2062	# don't, removes xs symbols, too,	4002	# don't, removes xs symbols, too,
2063	# and global variables created in xs	4003	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	4004	#clear_package __PACKAGE__;
2065		4005
2066	# reload cf.pm	4006	info "perl_reload: unload completed, starting to reload now";
2067	warn "reloading cf.pm";	4007
		4008	trace "perl_reload: reloading cf.pm";
2068	require cf;	4009	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4010	cf::_connect_to_perl_1;
2070		4011
2071	# load config and database again	4012	trace "perl_reload: loading config and database again";
2072	cf::cfg_load;	4013	cf::reload_config;
2073	cf::db_load;
2074		4014
2075	# load extensions	4015	trace "perl_reload: loading extensions";
2076	warn "load extensions";
2077	cf::load_extensions;	4016	cf::load_extensions;
2078		4017
2079	# reattach attachments to objects	4018	if ($REATTACH_ON_RELOAD) {
2080	warn "reattach";	4019	trace "perl_reload: reattaching attachments to objects/players";
2081	_global_reattach;	4020	_global_reattach; # objects, sockets
		4021	trace "perl_reload: reattaching attachments to maps";
		4022	reattach $_ for values %MAP;
		4023	trace "perl_reload: reattaching attachments to players";
		4024	reattach $_ for values %PLAYER;
		4025	}
		4026
		4027	cf::_post_init 1;
		4028
		4029	trace "perl_reload: leaving sync_job";
		4030
		4031	1
		4032	} or do {
		4033	error $@;
		4034	cf::cleanup "perl_reload: error, exiting.";
		4035	};
		4036
		4037	--$RELOAD;
		4038	}
		4039
		4040	$t1 = AE::time - $t1;
		4041	info "perl_reload: completed in ${t1}s\n";
		4042	};
		4043
		4044	our $RELOAD_WATCHER; # used only during reload
		4045
		4046	sub reload_perl() {
		4047	# doing reload synchronously and two reloads happen back-to-back,
		4048	# coro crashes during coro_state_free->destroy here.
		4049
		4050	$RELOAD_WATCHER ||= cf::async {
		4051	Coro::AIO::aio_wait cache_extensions;
		4052
		4053	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4054	do_reload_perl;
		4055	undef $RELOAD_WATCHER;
		4056	};
2082	};	4057	};
2083
2084	if ($@) {
2085	warn $@;
2086	warn "error while reloading, exiting.";
2087	exit 1;
2088	}
2089
2090	warn "reloaded successfully";
2091	};
2092
2093	#############################################################################
2094
2095	unless ($LINK_MAP) {
2096	$LINK_MAP = cf::map::new;
2097
2098	$LINK_MAP->width (41);
2099	$LINK_MAP->height (41);
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,
2108	cb => sub {
2109	$_[0]->w->cancel;
2110
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});
2129
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	4058	}
2135
2136	register "<global>", __PACKAGE__;
2137		4059
2138	register_command "reload" => sub {	4060	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	4061	my ($who, $arg) = @_;
2140		4062
2141	if ($who->flag (FLAG_WIZ)) {	4063	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	4064	$who->message ("reloading server.");
		4065	async {
		4066	$Coro::current->{desc} = "perl_reload";
		4067	reload_perl;
		4068	};
2145	}	4069	}
2146	};	4070	};
2147		4071
2148	unshift @INC, $LIBDIR;	4072	#############################################################################
2149		4073
2150	$TICK_WATCHER = Event->timer (	4074	my $bug_warning = 0;
2151	reentrant => 0,	4075
2152	prio => 0,	4076	our @WAIT_FOR_TICK;
2153	at => $NEXT_TICK || $TICK,	4077	our @WAIT_FOR_TICK_BEGIN;
2154	data => WF_AUTOCANCEL,	4078
2155	cb => sub {	4079	sub wait_for_tick() {
2156	unless ($FREEZE) {	4080	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4081
		4082	my $signal = new Coro::Signal;
		4083	push @WAIT_FOR_TICK, $signal;
		4084	$signal->wait;
		4085	}
		4086
		4087	sub wait_for_tick_begin() {
		4088	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4089
		4090	my $signal = new Coro::Signal;
		4091	push @WAIT_FOR_TICK_BEGIN, $signal;
		4092	$signal->wait;
		4093	}
		4094
		4095	sub tick {
		4096	if ($Coro::current != $Coro::main) {
		4097	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4098	unless ++$bug_warning > 10;
		4099	return;
		4100	}
		4101
2157	cf::server_tick; # one server iteration	4102	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;
2159	}
2160		4103
2161	$NEXT_TICK += $TICK;	4104	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2162		4105
2163	# if we are delayed by four ticks or more, skip them all	4106	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4107	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2165		4108	Coro::async_pool {
2166	$TICK_WATCHER->at ($NEXT_TICK);	4109	$Coro::current->{desc} = "runtime saver";
2167	$TICK_WATCHER->start;
2168	},
2169	);
2170
2171	IO::AIO::max_poll_time $TICK * 0.2;
2172
2173	Event->io (
2174	fd => IO::AIO::poll_fileno,
2175	poll => 'r',
2176	prio => 5,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,
2183	after => 0,
2184	interval => 10,
2185	cb => sub {
2186	(Coro::unblock_sub {
2187	write_runtime	4110	write_runtime_sync
2188	or warn "ERROR: unable to write runtime file: $!";	4111	or error "ERROR: unable to write runtime file: $!";
2189	})->();	4112	};
2190	},	4113	}
2191	);	4114
		4115	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4116	$sig->send;
		4117	}
		4118	while (my $sig = shift @WAIT_FOR_TICK) {
		4119	$sig->send;
		4120	}
		4121
		4122	$LOAD = ($NOW - $TICK_START) / $TICK;
		4123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4124
		4125	if (0) {
		4126	if ($NEXT_TICK) {
		4127	my $jitter = $TICK_START - $NEXT_TICK;
		4128	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4129	debug "jitter $JITTER\n";#d#
		4130	}
		4131	}
		4132	}
		4133
		4134	{
		4135	# configure BDB
		4136
		4137	BDB::min_parallel 16;
		4138	BDB::max_poll_reqs $TICK * 0.1;
		4139	$AnyEvent::BDB::WATCHER->priority (1);
		4140
		4141	unless ($DB_ENV) {
		4142	$DB_ENV = BDB::db_env_create;
		4143	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4144	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4145	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4146	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4147	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4148
		4149	cf::sync_job {
		4150	eval {
		4151	BDB::db_env_open
		4152	$DB_ENV,
		4153	$BDBDIR,
		4154	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4155	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4156	0666;
		4157
		4158	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4159	};
		4160
		4161	cf::cleanup "db_env_open(db): $@" if $@;
		4162	};
		4163	}
		4164
		4165	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4166	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4167	};
		4168	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4169	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4170	};
		4171	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4172	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4173	};
		4174	}
		4175
		4176	{
		4177	# configure IO::AIO
		4178
		4179	IO::AIO::min_parallel 8;
		4180	IO::AIO::max_poll_time $TICK * 0.1;
		4181	undef $AnyEvent::AIO::WATCHER;
		4182	}
		4183
		4184	our $_log_backtrace;
		4185	our $_log_backtrace_last;
		4186
		4187	sub _log_backtrace {
		4188	my ($msg, @addr) = @_;
		4189
		4190	$msg =~ s/\n$//;
		4191
		4192	if ($_log_backtrace_last eq $msg) {
		4193	LOG llevInfo, "[ABT] $msg\n";
		4194	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4195	# limit the # of concurrent backtraces
		4196	} elsif ($_log_backtrace < 2) {
		4197	$_log_backtrace_last = $msg;
		4198	++$_log_backtrace;
		4199	my $perl_bt = Carp::longmess $msg;
		4200	async {
		4201	$Coro::current->{desc} = "abt $msg";
		4202
		4203	my @bt = fork_call {
		4204	@addr = map { sprintf "%x", $_ } @addr;
		4205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4207	or die "addr2line: $!";
		4208
		4209	my @funcs;
		4210	my @res = <$fh>;
		4211	chomp for @res;
		4212	while (@res) {
		4213	my ($func, $line) = splice @res, 0, 2, ();
		4214	push @funcs, "[$func] $line";
		4215	}
		4216
		4217	@funcs
		4218	};
		4219
		4220	LOG llevInfo, "[ABT] $perl_bt\n";
		4221	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4222	LOG llevInfo, "[ABT] $_\n" for @bt;
		4223	--$_log_backtrace;
		4224	};
		4225	} else {
		4226	LOG llevInfo, "[ABT] $msg\n";
		4227	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4228	}
		4229	}
		4230
		4231	# load additional modules
		4232	require "cf/$_.pm" for @EXTRA_MODULES;
		4233	cf::_connect_to_perl_2;
		4234
		4235	END { cf::emergency_save }
2192		4236
2193	1	4237	1
2194		4238

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