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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.135 by root, Thu Jan 4 20:29:46 2007 UTC vs.
Revision 1.577 by root, Tue Jan 3 11:25:33 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 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;
		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);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
45	our $NOW;	138	our $NOW;
46		139
47	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
48		143
49	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		146
52	our %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	149	our $JITTER; # average jitter
55	our %EXT_CORO;	150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
56		159
57	binmode STDOUT;	160	binmode STDOUT;
58	binmode STDERR;	161	binmode STDERR;
59		162
60	# read virtual server time, if available	163	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
65	}	168	}
66		169
67	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		171
73	# a special map that is always available	172	mkdir $_
74	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
75	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
76		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
77	#############################################################################	183	#############################################################################
78		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
79	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
80		197
81	=over 4	198	=over 4
82		199
83	=item $cf::UPTIME	200	=item $cf::UPTIME
84		201
85	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
86		218
87	=item $cf::RUNTIME	219	=item $cf::RUNTIME
88		220
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	222	every server tick.
91		223
92	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		227
94	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
96		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
97	=item $cf::NOW	239	=item $cf::LOAD
98		240
99	The time of the last (current) server tick.	241	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		242
105	=item %cf::CFG	243	=item %cf::CFG
106		244
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	246	from wherever your confdir points to.
109		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
110	=back	283	=back
111		284
112	=cut	285	=cut
113		286
114	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	294	my $msg = join "", @_;
117	utf8::encode $msg;
118		295
119	$msg .= "\n"	296	$msg .= "\n"
120	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
121		298
122	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	300
124	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
125		317
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		325
133	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	327	# within the Safe compartment.
135	for my $pkg (qw(	328	for my $pkg (qw(
136	cf::global cf::attachable	329	cf::global cf::attachable
137	cf::object cf::object::player	330	cf::object cf::object::player
138	cf::client cf::player	331	cf::client cf::player
139	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
140	cf::map cf::party cf::region	334	cf::party cf::region
141	)) {	335	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	337	}
145		338
146	$Event::DIED = sub {	339	$EV::DIED = sub {
147	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
148	};	341	};
149		342
150	my %ext_pkg;	343	#############################################################################
151	my @exts;	344
152	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
153		349
154	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
155		351
156	=over 4	352	=over 4
157		353
158	=cut	354	=item dumpval $ref
159		355
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
161		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
162	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
163		392
164	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
165		394
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
174		396
175	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
176		398
177	=cut	399	=cut
178		400
179	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
181	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
182	}	466	}
183		467
184	=item cf::lock_wait $string	468	=item cf::lock_wait $string
185		469
186	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
187		471
188	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
189		473
190	Wait until the given lock is available and then acquires it and returns	474	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
193	returned.	477	returned.
194		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
195	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
197		484
198	=cut	485	=item $locked = cf::lock_active $string
199		486
200	our %LOCK;	487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
201		492
202	sub lock_wait($) {	493	sub lock_wait($) {
203	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	495	}
211		496
212	sub lock_acquire($) {	497	sub lock_acquire($) {
213	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
214		500
215	# wait, to be sure we are not locked	501	sub lock_active($) {
216	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
		503	}
217		504
218	$LOCK{$key} = [];	505	sub freeze_mainloop {
		506	tick_inhibit_inc;
219		507
220	Coro::guard {	508	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	509	}
222	$_->ready for @{ delete $LOCK{$key} };	510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
223	}	578	}
		579	};
		580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
224	}	594	}
225		595
226	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
227		597
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	598	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
230		601
231	=cut	602	=cut
232		603
233	sub async(&) {	604	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		605
250	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
251		607
252	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	609	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.	610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
255		612
256	If it must be done, put the blocking parts into C<sync_job>. This will run	613	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	614	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	615	server will be frozen during this time, so the block should either finish
259	fast or be very important.	616	fast or be very important.
…		…
261	=cut	618	=cut
262		619
263	sub sync_job(&) {	620	sub sync_job(&) {
264	my ($job) = @_;	621	my ($job) = @_;
265		622
266	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
267	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
269		628
270	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	630
272	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
273		632
274	my $busy = 1;	633	my $busy = 1;
275	my @res;	634	my @res;
276		635
277	(Coro::async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	638	@res = eval { $job->() };
279	warn $@ if $@;	639	error $@ if $@;
280	undef $busy;	640	undef $busy;
281	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
282		642
283	while ($busy) {	643	while ($busy) {
		644	if (Coro::nready) {
284	Coro::cede_notself;	645	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
286	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
287		654
288	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
289	} else {	656	} else {
290	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
291		658
292	$job->()	659	$job->()
293	}	660	}
294	}	661	}
295		662
296	=item $coro = cf::coro { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
297		664
298	Creates and returns a new coro. This coro is automcatially being canceled	665	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	666	extension calling this is being unloaded.
300		667
301	=cut	668	=cut
302		669
303	sub coro(&) {	670	sub async_ext(&) {
304	my $cb = shift;	671	my $cb = shift;
305		672
306	my $coro = &cf::async ($cb);	673	my $coro = &Coro::async ($cb);
307		674
308	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
310	});	677	});
311	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
312		679
313	$coro	680	$coro
314	}	681	}
315		682
316	sub write_runtime {	683	=item fork_call { }, @args
317	my $runtime = cf::localdir . "/runtime";
318		684
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
320	or return;	686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
321		689
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		691
326	aio_fsync $fh	692	sub post_fork {
327	and return;	693	reset_signals;
		694	}
328		695
329	close $fh	696	sub fork_call(&@) {
330	or return;	697	my ($cb, @args) = @_;
331		698
332	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
333	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
334		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
335	1	712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
		875	}
		876
		877	=item cf::datalog type => key => value, ...
		878
		879	Log a datalog packet of the given type with the given key-value pairs.
		880
		881	=cut
		882
		883	sub datalog($@) {
		884	my ($type, %kv) = @_;
		885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	886	}
337		887
338	=back	888	=back
339		889
340	=cut	890	=cut
341		891
342	#############################################################################	892	#############################################################################
343		893
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
465		895
466	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
469		899
470	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	902	Deliantra).
473		903
474	=over 4	904	=over 4
475		905
476	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
477		907
…		…
521	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
522		952
523	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
525		955
526	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
528		958
529	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
530		960
531	=over 4	961	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	1022	our @CB_MAP = ();
593		1023
594	my %attachment;	1024	my %attachment;
595		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
596	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
598		1034
599	use sort 'stable';	1035	use sort 'stable';
600		1036
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
635		1071
636	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		1076
641	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
643		1079
644	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
649		1085
650	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
652		1088
653	} elsif (ref $type) {	1089	} elsif (ref $type) {
654	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
655		1091
656	} else {	1092	} else {
657	shift @arg;	1093	shift @arg;
658	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
659	}	1095	}
660	}	1096	}
661	}	1097	}
662		1098
663	sub _object_attach {	1099	sub _object_attach {
…		…
673	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
674	}	1110	}
675		1111
676	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
677	} else {	1113	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
679	}	1115	}
680		1116
681	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
682	}	1118	}
683		1119
…		…
685	if (ref $_[0]) {	1121	if (ref $_[0]) {
686	_object_attach @_;	1122	_object_attach @_;
687	} else {	1123	} else {
688	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
689	}	1125	}
		1126	_recalc_want;
690	};	1127	};
691		1128
692	# all those should be optimised	1129	# all those should be optimised
693	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1135	reattach ($obj);
699	} else {	1136	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
701	}	1138	}
		1139	_recalc_want;
702	};	1140	};
703		1141
704	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
706		1144
…		…
721	";	1159	";
722	die if $@;	1160	die if $@;
723	}	1161	}
724		1162
725	our $override;	1163	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1165
728	sub override {	1166	sub override {
729	$override = 1;	1167	$override = 1;
730	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
731	}	1169	}
732		1170
733	sub do_invoke {	1171	sub do_invoke {
734	my $event = shift;	1172	my $event = shift;
735	my $callbacks = shift;	1173	my $callbacks = shift;
736		1174
737	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
738		1176
739	local $override;	1177	local $override;
740		1178
741	for (@$callbacks) {	1179	for (@$callbacks) {
742	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
743		1181
744	if ($@) {	1182	if ($@) {
745	warn "$@";
746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
747	override;	1184	override;
748	}	1185	}
749		1186
750	return 1 if $override;	1187	return 1 if $override;
751	}	1188	}
752		1189
753	0	1190	0
754	}	1191	}
755		1192
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1194
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1196
760	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
761		1198
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1202
766	=back	1203	=back
767		1204
768	=cut	1205	=cut
769		1206
770	#############################################################################	1207	#############################################################################
771	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
772		1251
773	sub reattach {	1252	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1254	my ($obj) = @_;
		1255
		1256	# no longer needed after getting rid of delete_package?
		1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1258
777	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
778		1260
779	@$registry = ();	1261	@$registry = ();
780		1262
…		…
785	for (@$attach) {	1267	for (@$attach) {
786	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
787	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
788	}	1270	}
789	} else {	1271	} else {
790	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
791	}	1273	}
792	}	1274	}
793	}	1275	}
794		1276
795	cf::attachable->attach (	1277	cf::attachable->attach (
796	prio => -1000000,	1278	prio => -1000000,
797	on_instantiate => sub {	1279	on_instantiate => sub {
798	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
799		1281
800	$data = from_json $data;	1282	$data = decode_json $data;
801		1283
802	for (@$data) {	1284	for (@$data) {
803	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
804		1286
805	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1303	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
823		1305
824	sync_job {	1306	sync_job {
825	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
828		1312
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1316	if ($cf::USE_FSYNC) {
		1317	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;
832	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
833	close $fh;	1320	aio_close $fh;
834		1321
835	if (@$objs) {	1322	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
		1327	if ($cf::USE_FSYNC) {
		1328	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;
840	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
841	close $fh;	1331	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
843	}	1333	}
844	} else {	1334	} else {
845	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
846	}	1336	}
847		1337
848	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1342	} else {
850	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
851	}	1344	}
852	} else {	1345	} else {
853	aio_unlink $filename;	1346	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
855	}	1348	}
856	}	1349	};
857	}	1350	}
858		1351
859	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
861		1354
…		…
873	or return;	1366	or return;
874		1367
875	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
877	or return;	1370	or return;
		1371
878	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
879	}	1374	}
880		1375
		1376	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
883	return ($data, $av);	1381	($data, $av)
884	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
885		1389
886	#############################################################################	1390	#############################################################################
887	# command handling &c	1391	# command handling &c
888		1392
889	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1407	}
904		1408
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1410
907	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
908		1416
909	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
910	called.	1418	called.
911		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
912	=cut	1431	=cut
913		1432
914	sub register_extcmd {	1433	sub register_extcmd {
915	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
916		1435
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
921	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
922		1446
923	cf::player->attach (	1447	cf::player->attach (
924	on_command => sub {	1448	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
926		1450
927	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
928	or return;	1452	or return;
929		1453
…		…
934	cf::override;	1458	cf::override;
935	},	1459	},
936	on_extcmd => sub {	1460	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
938		1462
939	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1464
941	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
947	} else {	1477	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1479	}
950		1480
951	cf::override;	1481	cf::override;
952	},	1482	},
953	);	1483	);
954		1484
955	sub register {	1485	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1486	sub cache_extensions {
962	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
963		1488
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969
970	warn "loading '$path' into '$pkg'\n";
971
972	open my $fh, "<:utf8", $path
973	or die "$path: $!";
974
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }
1004
1005	# remove commands
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}	1492	}
1014	}	1493	};
1015		1494
1016	# remove extcmds	1495	$grp
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	1496	}
1030		1497
1031	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
1032	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1505	next unless -r $path;
1034	eval {	1506
1035	load_extension $ext;	1507	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1508	my $base = $1;
		1509	my $pkg = $1;
		1510	$pkg =~ s/[^[:word:]]/_/g;
		1511	$pkg = "ext::$pkg";
		1512
		1513	open my $fh, "<:utf8", $path
		1514	or die "$path: $!";
		1515
		1516	my $source = do { local $/; <$fh> };
		1517
		1518	my %ext = (
		1519	path => $path,
		1520	base => $base,
		1521	pkg => $pkg,
		1522	);
		1523
		1524	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1525	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1526
		1527	$ext{source} =
		1528	"package $pkg; use common::sense;\n"
		1529	. "#line 1 \"$path\"\n{\n"
		1530	. $source
		1531	. "\n};\n1";
		1532
		1533	$todo{$base} = \%ext;
		1534	}
		1535
		1536	my $pass = 0;
		1537	my %done;
		1538	while (%todo) {
		1539	my $progress;
		1540
		1541	++$pass;
		1542
		1543	ext:
		1544	while (my ($k, $v) = each %todo) {
		1545	for (split /,\s*/, $v->{meta}{depends}) {
		1546	next ext
		1547	unless exists $done{$_};
		1548	}
		1549
		1550	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1551
		1552	my $active = eval $v->{source};
		1553
		1554	if (length $@) {
		1555	error "$v->{path}: $@\n";
		1556
		1557	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559
		1560	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1561	delete $todo{$k};
		1562	} else {
		1563	$done{$k} = delete $todo{$k};
		1564	push @EXTS, $v->{pkg};
		1565	$progress = 1;
		1566
		1567	info "$v->{base}: extension inactive.\n"
		1568	unless $active;
		1569	}
1036	1	1570	}
1037	} or warn "$ext not loaded: $@";	1571
		1572	unless ($progress) {
		1573	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1574
		1575	while (my ($k, $v) = each %todo) {
		1576	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1577	if exists $v->{meta}{mandatory};
		1578	}
		1579
		1580	last;
		1581	}
		1582	}
1038	}	1583	};
1039	}	1584	}
1040		1585
1041	#############################################################################	1586	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1587
1044	*cf::mapsupport::on_clean = sub {	1588	=back
		1589
		1590	=head2 CORE EXTENSIONS
		1591
		1592	Functions and methods that extend core deliantra objects.
		1593
		1594	=cut
		1595
		1596	package cf::player;
		1597
		1598	use Coro::AIO;
		1599
		1600	=head3 cf::player
		1601
		1602	=over 4
		1603
		1604	=item cf::player::num_playing
		1605
		1606	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1607
		1608	=cut
		1609
		1610	sub num_playing {
		1611	scalar grep
		1612	$_->ob->map
		1613	&& !$_->hidden
		1614	&& !$_->ob->flag (cf::FLAG_WIZ),
		1615	cf::player::list
		1616	}
		1617
		1618	=item cf::player::find $login
		1619
		1620	Returns the given player object, loading it if necessary (might block).
		1621
		1622	=cut
		1623
		1624	sub playerdir($) {
		1625	"$PLAYERDIR/"
		1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1627	}
		1628
		1629	sub path($) {
		1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1631
		1632	(playerdir $login) . "/playerdata"
		1633	}
		1634
		1635	sub find_active($) {
		1636	$cf::PLAYER{$_[0]}
		1637	and $cf::PLAYER{$_[0]}->active
		1638	and $cf::PLAYER{$_[0]}
		1639	}
		1640
		1641	sub exists($) {
1045	my ($map) = @_;	1642	my ($login) = @_;
1046		1643
1047	my $path = $map->tmpname;	1644	$cf::PLAYER{$login}
1048	defined $path or return;	1645	or !aio_stat path $login
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}	1646	}
1061		1647
1062	# TODO: compatibility cruft, remove when no longer needed	1648	sub find($) {
		1649	return $cf::PLAYER{$_[0]} || do {
		1650	my $login = $_[0];
		1651
		1652	my $guard = cf::lock_acquire "user_find:$login";
		1653
		1654	$cf::PLAYER{$_[0]} || do {
		1655	# rename old playerfiles to new ones
		1656	#TODO: remove when no longer required
		1657	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1658	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1659	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1660	aio_unlink +(playerdir $login) . "/$login.pl";
		1661
		1662	my $f = new_from_file cf::object::thawer path $login
		1663	or return;
		1664
		1665	my $pl = cf::player::load_pl $f
		1666	or return;
		1667
		1668	local $cf::PLAYER_LOADING{$login} = $pl;
		1669	$f->resolve_delayed_derefs;
		1670	$cf::PLAYER{$login} = $pl
		1671	}
		1672	}
		1673	}
		1674
1063	cf::player->attach (	1675	cf::player->attach (
1064	on_load => sub {	1676	on_load => sub {
1065	my ($pl, $path) = @_;	1677	my ($pl, $path) = @_;
1066		1678
1067	for my $o (all_objects $pl->ob) {	1679	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1680	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1681
1071	%$o = %{ Storable::thaw pack "H*", $value };	1682	$pl->ob->current_weapon ($slots->[0]);
1072	}	1683	$pl->combat_ob ($slots->[1]);
1073	}	1684	$pl->ranged_ob ($slots->[2]);
1074	},	1685	},
1075	);	1686	);
1076		1687
1077	#############################################################################	1688	sub save($) {
		1689	my ($pl) = @_;
1078		1690
1079	=head2 CORE EXTENSIONS	1691	return if $pl->{deny_save};
1080		1692
1081	Functions and methods that extend core crossfire objects.	1693	my $path = path $pl;
		1694	my $guard = cf::lock_acquire "user_save:$path";
1082		1695
1083	=head3 cf::player	1696	return if $pl->{deny_save};
		1697
		1698	aio_mkdir playerdir $pl, 0770;
		1699	$pl->{last_save} = $cf::RUNTIME;
		1700
		1701	cf::get_slot 0.01;
		1702
		1703	# save slots, to be restored later
		1704	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1705
		1706	$pl->save_pl ($path);
		1707	cf::cede_to_tick;
		1708	}
		1709
		1710	sub new($) {
		1711	my ($login) = @_;
		1712
		1713	my $self = create;
		1714
		1715	$self->ob->name ($login);
		1716	$self->{deny_save} = 1;
		1717
		1718	$cf::PLAYER{$login} = $self;
		1719
		1720	$self
		1721	}
		1722
		1723	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1724
		1725	=cut
		1726
		1727	sub send_msg {
		1728	my $ns = shift->ns
		1729	or return;
		1730	$ns->send_msg (@_);
		1731	}
		1732
		1733	=item $pl->quit_character
		1734
		1735	Nukes the player without looking back. If logged in, the connection will
		1736	be destroyed. May block for a long time.
		1737
		1738	=cut
		1739
		1740	sub quit_character {
		1741	my ($pl) = @_;
		1742
		1743	my $name = $pl->ob->name;
		1744
		1745	$pl->{deny_save} = 1;
		1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1747
		1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
		1755	$pl->ns->destroy if $pl->ns;
		1756
		1757	my $path = playerdir $pl;
		1758	my $temp = "$path~$cf::RUNTIME~deleting~";
		1759	aio_rename $path, $temp;
		1760	delete $cf::PLAYER{$pl->ob->name};
		1761	$pl->destroy;
		1762
		1763	my $prefix = qr<^~\Q$name\E/>;
		1764
		1765	# nuke player maps
		1766	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1767
		1768	IO::AIO::aio_rmtree $temp;
		1769	}
		1770
		1771	=item $pl->kick
		1772
		1773	Kicks a player out of the game. This destroys the connection.
		1774
		1775	=cut
		1776
		1777	sub kick {
		1778	my ($pl, $kicker) = @_;
		1779
		1780	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1781	$pl->killer ("kicked");
		1782	$pl->ns->destroy;
		1783	}
		1784
		1785	=item cf::player::list_logins
		1786
		1787	Returns am arrayref of all valid playernames in the system, can take a
		1788	while and may block, so not sync_job-capable, ever.
		1789
		1790	=cut
		1791
		1792	sub list_logins {
		1793	my $dirs = aio_readdir $PLAYERDIR
		1794	or return [];
		1795
		1796	my @logins;
		1797
		1798	for my $login (@$dirs) {
		1799	my $path = path $login;
		1800
		1801	# a .pst is a dead give-away for a valid player
		1802	# if no pst file found, open and chekc for blocked users
		1803	if (aio_stat "$path.pst") {
		1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1805	aio_read $fh, 0, 512, my $buf, 0 or next;
		1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
		1808
		1809	utf8::decode $login;
		1810	push @logins, $login;
		1811	}
		1812
		1813	\@logins
		1814	}
		1815
		1816	=item $player->maps
		1817
		1818	=item cf::player::maps $login
		1819
		1820	Returns an arrayref of map paths that are private for this
		1821	player. May block.
		1822
		1823	=cut
		1824
		1825	sub maps($) {
		1826	my ($pl) = @_;
		1827
		1828	$pl = ref $pl ? $pl->ob->name : $pl;
		1829
		1830	my $files = aio_readdir playerdir $pl
		1831	or return;
		1832
		1833	my @paths;
		1834
		1835	for (@$files) {
		1836	utf8::decode $_;
		1837	next if /\.(?:pl|pst)$/;
		1838	next unless /^$PATH_SEP/o;
		1839
		1840	push @paths, cf::map::normalise "~$pl/$_";
		1841	}
		1842
		1843	\@paths
		1844	}
		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
		1850	=item $player->ext_reply ($msgid, @msg)
		1851
		1852	Sends an ext reply to the player.
		1853
		1854	=cut
		1855
		1856	sub ext_reply($$@) {
		1857	my ($self, $id, @msg) = @_;
		1858
		1859	$self->ns->ext_reply ($id, @msg)
		1860	}
		1861
		1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		1869	my ($self, $type, @msg) = @_;
		1870
		1871	$self->ns->ext_msg ($type, @msg);
		1872	}
		1873
		1874	=head3 cf::region
1084		1875
1085	=over 4	1876	=over 4
1086		1877
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1878	=cut
1092		1879
1093	sub cf::player::exists($) {	1880	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1881
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1882	=item cf::region::find_by_path $path
1099		1883
1100	Sends an ext reply to the player.	1884	Tries to decuce the likely region for a map knowing only its path.
1101		1885
1102	=cut	1886	=cut
1103		1887
1104	sub cf::player::ext_reply($$$%) {	1888	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1889	my ($path) = @_;
1106		1890
1107	$msg{msgid} = $id;	1891	$path =~ s/^~[^\/]*//; # skip ~login
1108		1892
1109	$self->send ("ext " . to_json \%msg);	1893	my ($match, $specificity);
		1894
		1895	for my $region (list) {
		1896	if ($region->{match} && $path =~ $region->{match}) {
		1897	($match, $specificity) = ($region, $region->specificity)
		1898	if $region->specificity > $specificity;
		1899	}
		1900	}
		1901
		1902	$match
1110	}	1903	}
1111		1904
1112	=back	1905	=back
1113
1114		1906
1115	=head3 cf::map	1907	=head3 cf::map
1116		1908
1117	=over 4	1909	=over 4
1118		1910
…		…
1121	package cf::map;	1913	package cf::map;
1122		1914
1123	use Fcntl;	1915	use Fcntl;
1124	use Coro::AIO;	1916	use Coro::AIO;
1125		1917
		1918	use overload
		1919	'""' => \&as_string,
		1920	fallback => 1;
		1921
1126	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1128		1924
1129	sub generate_random_map {	1925	sub generate_random_map {
		1926	my ($self, $rmp) = @_;
		1927
		1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
		1930	$self->_create_random_map ($rmp);
		1931	}
		1932
		1933	=item cf::map->register ($regex, $prio)
		1934
		1935	Register a handler for the map path matching the given regex at the
		1936	givne priority (higher is better, built-in handlers have priority 0, the
		1937	default).
		1938
		1939	=cut
		1940
		1941	sub register {
		1942	my (undef, $regex, $prio) = @_;
		1943	my $pkg = caller;
		1944
		1945	push @{"$pkg\::ISA"}, __PACKAGE__;
		1946
		1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1948	}
		1949
		1950	# also paths starting with '/'
		1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1952
		1953	sub thawer_merge {
		1954	my ($self, $merge) = @_;
		1955
		1956	# we have to keep some variables in memory intact
		1957	local $self->{path};
		1958	local $self->{load_path};
		1959
		1960	$self->SUPER::thawer_merge ($merge);
		1961	}
		1962
		1963	sub normalise {
1130	my ($path, $rmp) = @_;	1964	my ($path, $base) = @_;
1131		1965
1132	# mit "rum" bekleckern, nicht	1966	$path = "$path"; # make sure it's a string
1133	cf::map::_create_random_map	1967
		1968	$path =~ s/\.map$//;
		1969
		1970	# map plan:
		1971	#
		1972	# /! non-realised random map exit (special hack!)
		1973	# {... are special paths that are not being touched
		1974	# ?xxx/... are special absolute paths
		1975	# ?random/... random maps
		1976	# /... normal maps
		1977	# ~user/... per-player map of a specific user
		1978
		1979	$path =~ s/$PATH_SEP/\//go;
		1980
		1981	# treat it as relative path if it starts with
		1982	# something that looks reasonable
		1983	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1984	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1985
		1986	$base =~ s{[^/]+/?$}{};
		1987	$path = "$base/$path";
		1988	}
		1989
		1990	for ($path) {
		1991	redo if s{/\.?/}{/};
		1992	redo if s{/[^/]+/\.\./}{/};
		1993	}
		1994
1134	$path,	1995	$path
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})
1146	}	1996	}
1147		1997
1148	# and all this just because we cannot iterate over	1998	sub new_from_path {
1149	# all maps in C++...	1999	my (undef, $path, $base) = @_;
1150	sub change_all_map_light {	2000
		2001	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2002
		2003	$path = normalise $path, $base;
		2004
		2005	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2006	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2007	my $self = bless cf::map::new, $pkg;
		2008	$self->{path} = $path; $self->path ($path);
		2009	$self->init; # pass $1 etc.
		2010	return $self;
		2011	}
		2012	}
		2013
		2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2015	()
		2016	}
		2017
		2018	# may re-bless or do other evil things
		2019	sub init {
1151	my ($change) = @_;	2020	my ($self) = @_;
1152		2021
1153	$_->change_map_light ($change)	2022	$self
1154	for grep $_->outdoor, values %cf::MAP;
1155	}	2023	}
1156		2024
		2025	sub as_string {
		2026	my ($self) = @_;
		2027
		2028	"$self->{path}"
		2029	}
		2030
		2031	# the displayed name, this is a one way mapping
		2032	sub visible_name {
		2033	&as_string
		2034	}
		2035
		2036	# the original (read-only) location
		2037	sub load_path {
		2038	my ($self) = @_;
		2039
		2040	"$MAPDIR/$self->{path}.map"
		2041	}
		2042
		2043	# the temporary/swap location
		2044	sub save_path {
		2045	my ($self) = @_;
		2046
		2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2048	"$TMPDIR/$path.map"
		2049	}
		2050
		2051	# the unique path, undef == no special unique path
		2052	sub uniq_path {
		2053	my ($self) = @_;
		2054
		2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2056	"$UNIQUEDIR/$path"
		2057	}
		2058
		2059	sub decay_objects {
		2060	my ($self) = @_;
		2061
		2062	return if $self->{deny_reset};
		2063
		2064	$self->do_decay_objects;
		2065	}
		2066
		2067	sub unlink_save {
		2068	my ($self) = @_;
		2069
		2070	utf8::encode (my $save = $self->save_path);
		2071	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2072	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2073	}
		2074
1157	sub try_load_header($) {	2075	sub load_header_from($) {
1158	my ($path) = @_;	2076	my ($self, $path) = @_;
1159		2077
1160	utf8::encode $path;	2078	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1162	or return;	2080	or return;
1163		2081
1164	my $map = cf::map::new	2082	$self->_load_header ($f)
1165	or return;	2083	or return;
1166		2084
1167	# for better error messages only, will be overwritten	2085	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	2086	$f->resolve_delayed_derefs;
1169		2087
1170	$map->load_header ($path)	2088	$self->{load_path} = $path;
		2089
		2090	1
		2091	}
		2092
		2093	# used to laod the header of an original map
		2094	sub load_header_orig {
		2095	my ($self) = @_;
		2096
		2097	$self->load_header_from ($self->load_path)
		2098	}
		2099
		2100	# used to laod the header of an instantiated map
		2101	sub load_header_temp {
		2102	my ($self) = @_;
		2103
		2104	$self->load_header_from ($self->save_path)
		2105	}
		2106
		2107	# called after loading the header from an instantiated map
		2108	sub prepare_temp {
		2109	my ($self) = @_;
		2110
		2111	$self->last_access ((delete $self->{last_access})
		2112	|| $cf::RUNTIME); #d#
		2113	# safety
		2114	$self->{instantiate_time} = $cf::RUNTIME
		2115	if $self->{instantiate_time} > $cf::RUNTIME;
		2116	}
		2117
		2118	# called after loading the header from an original map
		2119	sub prepare_orig {
		2120	my ($self) = @_;
		2121
		2122	$self->{load_original} = 1;
		2123	$self->{instantiate_time} = $cf::RUNTIME;
		2124	$self->last_access ($cf::RUNTIME);
		2125	$self->instantiate;
		2126	}
		2127
		2128	sub load_header {
		2129	my ($self) = @_;
		2130
		2131	if ($self->load_header_temp) {
		2132	$self->prepare_temp;
		2133	} else {
		2134	$self->load_header_orig
1171	or return;	2135	or return;
		2136	$self->prepare_orig;
		2137	}
1172		2138
1173	$map->{load_path} = $path;	2139	$self->{deny_reset} = 1
		2140	if $self->no_reset;
1174		2141
1175	$map	2142	$self->default_region (cf::region::find_by_path $self->{path})
		2143	unless $self->default_region;
		2144
		2145	1
1176	}	2146	}
1177		2147
1178	sub find;	2148	sub find;
1179	sub find {	2149	sub find {
1180	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1181		2151
1182	#warn "find<$path,$origin>\n";#d#	2152	cf::cede_to_tick;
1183		2153
1184	$path = new cf::path $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1185	my $key = $path->as_string;
1186		2155
1187	cf::lock_wait "map_find:$key";	2156	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";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2158
1192	# do it the slow way	2159	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2160	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2161	or return;
1211		2162
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1224		2164
1225	Coro::cede;	2165	$map->load_header
		2166	or return;
1226		2167
1227	if ($map->should_reset) {	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2169	# doing this can freeze the server in a sync job, obviously
		2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1228	$map->reset;	2173	$map->reset;
1229	undef $guard;
1230	$map = find $path	2174	return find $path;
1231	or return;
1232	}	2175	}
1233		2176
1234	$cf::MAP{$key} = $map	2177	$cf::MAP{$path} = $map
1235	}	2178	}
1236	}	2179	}
		2180
		2181	sub pre_load { }
		2182	#sub post_load { } # XS
1237		2183
1238	sub load {	2184	sub load {
1239	my ($self) = @_;	2185	my ($self) = @_;
1240		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1241	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2192	my $guard = cf::lock_acquire "map_data:$path";
1243		2193
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1245		2196
1246	$self->in_memory (cf::MAP_LOADING);
1247
1248	$self->alloc;	2197	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2198
		2199	$self->pre_load;
		2200	cf::cede_to_tick;
		2201
		2202	if (exists $self->{load_path}) {
		2203	my $f = new_from_file cf::object::thawer $self->{load_path};
		2204	$f->skip_block;
		2205	$self->_load_objects ($f)
1250	or return;	2206	or return;
1251		2207
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1253	if delete $self->{load_original};	2209	if delete $self->{load_original};
1254		2210
1255	if (my $uniq = $path->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2212	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2215	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1260	}	2220	}
1261	}
1262		2221
1263	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1264		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1265	# now do the right thing for maps	2231	# now do the right thing for maps
1266	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2234	unless $self->difficulty;
1278	$self->activate;	2235	cf::cede_to_tick;
		2236
		2237	unless ($self->{deny_activate}) {
		2238	$self->decay_objects;
		2239	$self->fix_auto_apply;
		2240	$self->update_buttons;
		2241	cf::cede_to_tick;
		2242	#$self->activate; # no longer activate maps automatically
		2243	}
		2244
		2245	$self->{last_save} = $cf::RUNTIME;
		2246	$self->last_access ($cf::RUNTIME);
		2247	}
		2248
		2249	$self->post_load;
		2250
1279	}	2251	1
		2252	}
1280		2253
1281	Coro::cede;	2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
		2257	sub customise_for {
		2258	my ($self, $ob) = @_;
1282		2259
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2260	return find "~" . $ob->name . "/" . $self->{path}
		2261	if $self->per_player;
		2262
		2263	# return find "?party/" . $ob->name . "/" . $self->{path}
		2264	# if $self->per_party;
		2265
		2266	$self
1284	}	2267	}
1285		2268
1286	sub find_sync {	2269	sub find_sync {
1287	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1288		2271
1289	cf::sync_job { cf::map::find $path, $origin }	2272	# it's a bug to call this from the main context
		2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1290	}	2277	}
1291		2278
1292	sub do_load_sync {	2279	sub do_load_sync {
1293	my ($map) = @_;	2280	my ($map) = @_;
1294		2281
1295	cf::sync_job { $map->load };	2282	# it's a bug to call this from the main context
		2283	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2284	if $Coro::current == $Coro::main;
		2285
		2286	$map->load;
		2287	}
		2288
		2289	our %MAP_PREFETCH;
		2290	our $MAP_PREFETCHER = undef;
		2291
		2292	sub find_async {
		2293	my ($path, $origin, $load) = @_;
		2294
		2295	$path = normalise $path, $origin;
		2296
		2297	if (my $map = $cf::MAP{$path}) {
		2298	return $map if !$load || $map->linkable;
		2299	}
		2300
		2301	$MAP_PREFETCH{$path} |= $load;
		2302
		2303	$MAP_PREFETCHER ||= cf::async {
		2304	$Coro::current->{desc} = "map prefetcher";
		2305
		2306	while (%MAP_PREFETCH) {
		2307	while (my ($k, $v) = each %MAP_PREFETCH) {
		2308	if (my $map = find $k) {
		2309	$map->load if $v;
		2310	}
		2311
		2312	delete $MAP_PREFETCH{$k};
		2313	}
		2314	}
		2315	undef $MAP_PREFETCHER;
		2316	};
		2317	$MAP_PREFETCHER->prio (6);
		2318
		2319	()
		2320	}
		2321
		2322	# common code, used by both ->save and ->swapout
		2323	sub _save {
		2324	my ($self) = @_;
		2325
		2326	$self->{last_save} = $cf::RUNTIME;
		2327
		2328	return unless $self->dirty;
		2329
		2330	my $save = $self->save_path; utf8::encode $save;
		2331	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2332
		2333	$self->{load_path} = $save;
		2334
		2335	return if $self->{deny_save};
		2336
		2337	local $self->{last_access} = $self->last_access;#d#
		2338
		2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
		2341	$_->contr->save for $self->players;
		2342	};
		2343
		2344	cf::get_slot 0.02;
		2345
		2346	if ($uniq) {
		2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2349	} else {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2351	}
1296	}	2352	}
1297		2353
1298	sub save {	2354	sub save {
1299	my ($self) = @_;	2355	my ($self) = @_;
1300		2356
1301	$self->{last_save} = $cf::RUNTIME;	2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2358
1303	return unless $self->dirty;	2359	$self->_save;
1304
1305	my $save = $self->{path}->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1307
1308	$self->{load_path} = $save;
1309
1310	return if $self->{deny_save};
1311
1312	local $self->{last_access} = $self->last_access;#d#
1313
1314	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}
1320	}	2360	}
1321		2361
1322	sub swap_out {	2362	sub swap_out {
1323	my ($self) = @_;	2363	my ($self) = @_;
1324		2364
1325	# save first because save cedes	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1326	$self->save;
1327		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1328	return if $self->players;	2369	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};
1331		2370
		2371	# first deactivate the map and "unlink" it from the core
		2372	$self->deactivate;
		2373	$_->clear_links_to ($self) for values %cf::MAP;
		2374	$self->state (cf::MAP_SWAPPED);
		2375
		2376	# then atomically save
		2377	$self->_save;
		2378
		2379	# then free the map
1332	$self->clear;	2380	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2381	}
1335		2382
1336	sub reset_at {	2383	sub reset_at {
1337	my ($self) = @_;	2384	my ($self) = @_;
1338		2385
1339	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1342		2388
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2391
…		…
1350	my ($self) = @_;	2396	my ($self) = @_;
1351		2397
1352	$self->reset_at <= $cf::RUNTIME	2398	$self->reset_at <= $cf::RUNTIME
1353	}	2399	}
1354		2400
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2401	sub reset {
1377	my ($self) = @_;	2402	my ($self) = @_;
1378		2403
		2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2405
1379	return if $self->players;	2406	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2407
1382	warn "resetting map ", $self->path;#d#	2408	cf::trace "resetting map ", $self->path, "\n";
		2409
		2410	$self->state (cf::MAP_SWAPPED);
		2411
		2412	# need to save uniques path
		2413	unless ($self->{deny_save}) {
		2414	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2415
		2416	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2417	if $uniq;
		2418	}
1383		2419
1384	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1385		2421
		2422	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2423	$_->clear_links_to ($self) for values %cf::MAP;
		2424	$self->clear;
1387		2425
1388	$self->unlink_save;	2426	$self->unlink_save;
1389	$self->destroy;	2427	$self->destroy;
1390	}	2428	}
1391		2429
1392	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1393		2431
1394	sub nuke {	2432	sub nuke {
1395	my ($self) = @_;	2433	my ($self) = @_;
1396		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
		2438	delete $cf::MAP{$self->path};
		2439
		2440	$self->unlink_save;
		2441
		2442	bless $self, "cf::map::wrap";
		2443	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2447
		2448	$cf::MAP{$self->path} = $self;
		2449	}
		2450
1400	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
1401	}	2452	}
1402		2453
1403	sub customise_for {	2454	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2455
1406	if ($map->per_player) {	2456	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2457	maps. May block.
		2458
		2459	=cut
		2460
		2461	sub tmp_maps() {
1408	}	2462	[
1409		2463	map {
1410	$map	2464	utf8::decode $_;
		2465	/\.map$/
		2466	? normalise $_
		2467	: ()
		2468	} @{ aio_readdir $TMPDIR or [] }
		2469	]
1411	}	2470	}
1412		2471
1413	sub emergency_save {	2472	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2473
1416	warn "enter emergency map save\n";	2474	Returns an arrayref with all map paths of currently instantiated and saved
		2475	random maps. May block.
1417		2476
1418	cf::sync_job {	2477	=cut
1419	warn "begin emergency map save\n";	2478
1420	$_->save for values %cf::MAP;	2479	sub random_maps() {
		2480	[
		2481	map {
		2482	utf8::decode $_;
		2483	/\.map$/
		2484	? normalise "?random/$_"
		2485	: ()
		2486	} @{ aio_readdir $RANDOMDIR or [] }
		2487	]
		2488	}
		2489
		2490	=item cf::map::unique_maps
		2491
		2492	Returns an arrayref of paths of all shared maps that have
		2493	instantiated unique items. May block.
		2494
		2495	=cut
		2496
		2497	sub unique_maps() {
		2498	[
		2499	map {
		2500	utf8::decode $_;
		2501	s/\.map$//; # TODO future compatibility hack
		2502	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2503	? ()
		2504	: normalise $_
		2505	} @{ aio_readdir $UNIQUEDIR or [] }
		2506	]
		2507	}
		2508
		2509	=item cf::map::static_maps
		2510
		2511	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2512	file in the shared directory excluding F</styles> and F</editor>). May
		2513	block.
		2514
		2515	=cut
		2516
		2517	sub static_maps() {
		2518	my @dirs = "";
		2519	my @maps;
		2520
		2521	while (@dirs) {
		2522	my $dir = shift @dirs;
		2523
		2524	next if $dir eq "/styles" || $dir eq "/editor";
		2525
		2526	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2527	or return;
		2528
		2529	for (@$files) {
		2530	s/\.map$// or next;
		2531	utf8::decode $_;
		2532	push @maps, "$dir/$_";
		2533	}
		2534
		2535	push @dirs, map "$dir/$_", @$dirs;
1421	};	2536	}
1422		2537
1423	warn "end emergency map save\n";	2538	\@maps
		2539	}
		2540
		2541	=back
		2542
		2543	=head3 cf::object
		2544
		2545	=cut
		2546
		2547	package cf::object;
		2548
		2549	=over 4
		2550
		2551	=item $ob->inv_recursive
		2552
		2553	Returns the inventory of the object I<and> their inventories, recursively,
		2554	but I<not> the object itself.
		2555
		2556	=cut
		2557
		2558	sub inv_recursive_;
		2559	sub inv_recursive_ {
		2560	map { $_, inv_recursive_ $_->inv } @_
		2561	}
		2562
		2563	sub inv_recursive {
		2564	inv_recursive_ inv $_[0]
		2565	}
		2566
		2567	=item $ref = $ob->ref
		2568
		2569	Creates and returns a persistent reference to an object that can be stored as a string.
		2570
		2571	=item $ob = cf::object::deref ($refstring)
		2572
		2573	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2574	even if the object actually exists. May block.
		2575
		2576	=cut
		2577
		2578	sub deref {
		2579	my ($ref) = @_;
		2580
		2581	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2582	my ($uuid, $name) = ($1, $2);
		2583	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2584	or return;
		2585	$pl->ob->uuid eq $uuid
		2586	or return;
		2587
		2588	$pl->ob
		2589	} else {
		2590	warn "$ref: cannot resolve object reference\n";
		2591	undef
		2592	}
1424	}	2593	}
1425		2594
1426	package cf;	2595	package cf;
1427		2596
1428	=back	2597	=back
1429
1430		2598
1431	=head3 cf::object::player	2599	=head3 cf::object::player
1432		2600
1433	=over 4	2601	=over 4
1434		2602
…		…
1437	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2605	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1438	can be C<undef>. Does the right thing when the player is currently in a	2606	can be C<undef>. Does the right thing when the player is currently in a
1439	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1440		2608
1441	=cut	2609	=cut
		2610
		2611	our $SAY_CHANNEL = {
		2612	id => "say",
		2613	title => "Map",
		2614	reply => "say ",
		2615	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2616	};
		2617
		2618	our $CHAT_CHANNEL = {
		2619	id => "chat",
		2620	title => "Chat",
		2621	reply => "chat ",
		2622	tooltip => "Player chat and shouts, global to the server.",
		2623	};
1442		2624
1443	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1444	# with dialog boxes.	2626	# with dialog boxes.
1445	#TODO: the first argument must go, split into a $npc->reply_to ( method	2627	#TODO: the first argument must go, split into a $npc->reply_to ( method
1446	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1448		2630
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2632
1451	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1453	} else {	2636	} else {
		2637	my $pl = $self->contr;
		2638
		2639	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2640	my $dialog = $pl->{npc_dialog};
		2641	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2642
		2643	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1456	}	2647	}
		2648	}
		2649
		2650	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2651
		2652	=cut
		2653
		2654	sub cf::object::send_msg {
		2655	my $pl = shift->contr
		2656	or return;
		2657	$pl->send_msg (@_);
1457	}	2658	}
1458		2659
1459	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1460		2661
1461	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1474		2675
1475	=item $player_object->enter_link	2676	=item $player_object->enter_link
1476		2677
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2678	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2679
1479	The player should be reaosnably safe there for short amounts of time. You	2680	The player should be reasonably safe there for short amounts of time (e.g.
1480	I<MUST> call C<leave_link> as soon as possible, though.	2681	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2682	though, as the player cannot control the character while it is on the link
		2683	map.
		2684
		2685	Will never block.
1481		2686
1482	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1483		2688
1484	Moves the player out of the specila link map onto the given map. If the	2689	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2690	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2691	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2692	fails, to the emergency map position.
1488		2693
1489	Might block.	2694	Might block.
1490		2695
1491	=cut	2696	=cut
		2697
		2698	sub link_map {
		2699	unless ($LINK_MAP) {
		2700	$LINK_MAP = cf::map::find "{link}"
		2701	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2702	$LINK_MAP->load;
		2703	}
		2704
		2705	$LINK_MAP
		2706	}
1492		2707
1493	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2709	my ($self) = @_;
1495		2710
1496	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1497		2712
1498	return if $self->map == $LINK_MAP;	2713	++$self->{_link_recursion};
		2714
		2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2716
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1502		2719
1503	$self->enter_map ($LINK_MAP, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1504	}	2721	}
1505		2722
1506	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1508		2727
1509	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1510		2729
1511	unless ($map) {	2730	unless ($map) {
1512	# restore original map position	2731	# restore original map position
…		…
1523	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1524	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1525		2744
1526	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1529		2748
1530	$map->load;	2749	$map->load;
1531		2750
		2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1532	$self->activate_recursive;	2758	$self->activate_recursive;
1533	$self->enter_map ($map, $x, $y);
1534	}
1535
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},	2759	}
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2760
1550	# try to abort aborted map switching on player login :)	2761	}
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563		2762
1564	=item $player_object->goto_map ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1565		2764
1566	=cut	2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
1567		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
		2774	=cut
		2775
		2776	our $GOTOGEN;
		2777
1568	sub cf::object::player::goto_map {	2778	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
		2780
		2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2789
1571	$self->enter_link;	2790	$self->enter_link;
1572		2791
1573	(cf::async {	2792	(async {
1574	$path = new cf::path $path;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2794
1576	my $map = cf::map::find $path->as_string;	2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2816
		2817	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1578		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1583		2823
		2824	$map
		2825	};
		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1585	})->prio (1);	2838	})->prio (1);
1586	}	2839	}
1587		2840
1588	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1589		2842
…		…
1591		2844
1592	sub parse_random_map_params {	2845	sub parse_random_map_params {
1593	my ($spec) = @_;	2846	my ($spec) = @_;
1594		2847
1595	my $rmp = { # defaults	2848	my $rmp = { # defaults
1596	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1598	};	2853	};
1599		2854
1600	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1602		2857
…		…
1614	# that depends on the exit object	2869	# that depends on the exit object
1615		2870
1616	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1617		2872
1618	if ($exit->map) {	2873	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1623	}	2880	}
1624		2881
1625	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1626		2883
1627	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1628	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1629		2887
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1632		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1633	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1635	}	2899	}
1636	}	2900	}
1637		2901
1638	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
1640		2904
1641	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1642		2906
1643	$self->enter_link;	2907	$self->enter_link;
1644		2908
1645	(cf::async {	2909	(async {
1646	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1647	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2916	my $x = $exit->stats->hp;
		2917	my $y = $exit->stats->sp;
		2918
		2919	# special map handling
		2920	my $slaying = $exit->slaying;
		2921
		2922	# special map handling
		2923	if ($slaying eq "/!") {
		2924	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2925
1648	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1649	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1650		2930
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1653		2935
		2936	} elsif ($slaying eq '!down') {
		2937	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2938	$x = $exit->x;
		2939	$y = $exit->y;
		2940	}
		2941
		2942	$self->goto ($map, $x, $y);
		2943
		2944	# if exit is damned, update players death & WoR home-position
		2945	$self->contr->savebed ($map, $x, $y)
		2946	if $exit->flag (cf::FLAG_DAMNED);
		2947
1654	1;	2948	1
1655	}) {	2949	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1657	. "I'll try to bring you back to the map you were before. "	2951	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2952	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2954
1661	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1662	$self->leave_link;	2956	$self->leave_link;
1663	}	2957	}
1664	})->prio (1);	2958	})->prio (1);
1665	}	2959	}
1666		2960
…		…
1677		2971
1678	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1680		2974
1681	utf8::encode $text;	2975	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2977	}
1684		2978
		2979	=item $client->send_big_packet ($pkt)
		2980
		2981	Like C<send_packet>, but tries to compress large packets, and fragments
		2982	them as required.
		2983
		2984	=cut
		2985
		2986	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2987
		2988	sub cf::client::send_big_packet {
		2989	my ($self, $pkt) = @_;
		2990
		2991	# try lzf for large packets
		2992	$pkt = "lzf " . Compress::LZF::compress $pkt
		2993	if 1024 <= length $pkt and $self->{can_lzf};
		2994
		2995	# split very large packets
		2996	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2997	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2998	$pkt = "frag";
		2999	}
		3000
		3001	$self->send_packet ($pkt);
		3002	}
		3003
		3004	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3005
		3006	Send a drawinfo or msg packet to the client, formatting the msg for the
		3007	client if neccessary. C<$type> should be a string identifying the type of
		3008	the message, with C<log> being the default. If C<$color> is negative, suppress
		3009	the message unless the client supports the msg packet.
		3010
		3011	=cut
		3012
		3013	# non-persistent channels (usually the info channel)
		3014	our %CHANNEL = (
		3015	"c/motd" => {
		3016	id => "infobox",
		3017	title => "MOTD",
		3018	reply => undef,
		3019	tooltip => "The message of the day",
		3020	},
		3021	"c/identify" => {
		3022	id => "infobox",
		3023	title => "Identify",
		3024	reply => undef,
		3025	tooltip => "Items recently identified",
		3026	},
		3027	"c/examine" => {
		3028	id => "infobox",
		3029	title => "Examine",
		3030	reply => undef,
		3031	tooltip => "Signs and other items you examined",
		3032	},
		3033	"c/shopinfo" => {
		3034	id => "infobox",
		3035	title => "Shop Info",
		3036	reply => undef,
		3037	tooltip => "What your bargaining skill tells you about the shop",
		3038	},
		3039	"c/book" => {
		3040	id => "infobox",
		3041	title => "Book",
		3042	reply => undef,
		3043	tooltip => "The contents of a note or book",
		3044	},
		3045	"c/lookat" => {
		3046	id => "infobox",
		3047	title => "Look",
		3048	reply => undef,
		3049	tooltip => "What you saw there",
		3050	},
		3051	"c/who" => {
		3052	id => "infobox",
		3053	title => "Players",
		3054	reply => undef,
		3055	tooltip => "Shows players who are currently online",
		3056	},
		3057	"c/body" => {
		3058	id => "infobox",
		3059	title => "Body Parts",
		3060	reply => undef,
		3061	tooltip => "Shows which body parts you posess and are available",
		3062	},
		3063	"c/statistics" => {
		3064	id => "infobox",
		3065	title => "Statistics",
		3066	reply => undef,
		3067	tooltip => "Shows your primary statistics",
		3068	},
		3069	"c/skills" => {
		3070	id => "infobox",
		3071	title => "Skills",
		3072	reply => undef,
		3073	tooltip => "Shows your experience per skill and item power",
		3074	},
		3075	"c/shopitems" => {
		3076	id => "infobox",
		3077	title => "Shop Items",
		3078	reply => undef,
		3079	tooltip => "Shows the items currently for sale in this shop",
		3080	},
		3081	"c/resistances" => {
		3082	id => "infobox",
		3083	title => "Resistances",
		3084	reply => undef,
		3085	tooltip => "Shows your resistances",
		3086	},
		3087	"c/pets" => {
		3088	id => "infobox",
		3089	title => "Pets",
		3090	reply => undef,
		3091	tooltip => "Shows information abotu your pets/a specific pet",
		3092	},
		3093	"c/perceiveself" => {
		3094	id => "infobox",
		3095	title => "Perceive Self",
		3096	reply => undef,
		3097	tooltip => "You gained detailed knowledge about yourself",
		3098	},
		3099	"c/uptime" => {
		3100	id => "infobox",
		3101	title => "Uptime",
		3102	reply => undef,
		3103	tooltip => "How long the server has been running since last restart",
		3104	},
		3105	"c/mapinfo" => {
		3106	id => "infobox",
		3107	title => "Map Info",
		3108	reply => undef,
		3109	tooltip => "Information related to the maps",
		3110	},
		3111	"c/party" => {
		3112	id => "party",
		3113	title => "Party",
		3114	reply => "gsay ",
		3115	tooltip => "Messages and chat related to your party",
		3116	},
		3117	"c/death" => {
		3118	id => "death",
		3119	title => "Death",
		3120	reply => undef,
		3121	tooltip => "Reason for and more info about your most recent death",
		3122	},
		3123	"c/say" => $SAY_CHANNEL,
		3124	"c/chat" => $CHAT_CHANNEL,
		3125	);
		3126
		3127	sub cf::client::send_msg {
		3128	my ($self, $channel, $msg, $color, @extra) = @_;
		3129
		3130	$msg = $self->pl->expand_cfpod ($msg)
		3131	unless $color & cf::NDI_VERBATIM;
		3132
		3133	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3134
		3135	# check predefined channels, for the benefit of C
		3136	if ($CHANNEL{$channel}) {
		3137	$channel = $CHANNEL{$channel};
		3138
		3139	$self->ext_msg (channel_info => $channel);
		3140	$channel = $channel->{id};
		3141
		3142	} elsif (ref $channel) {
		3143	# send meta info to client, if not yet sent
		3144	unless (exists $self->{channel}{$channel->{id}}) {
		3145	$self->{channel}{$channel->{id}} = $channel;
		3146	$self->ext_msg (channel_info => $channel);
		3147	}
		3148
		3149	$channel = $channel->{id};
		3150	}
		3151
		3152	return unless @extra || length $msg;
		3153
		3154	# default colour, mask it out
		3155	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3156	if $color & cf::NDI_DEF;
		3157
		3158	my $pkt = "msg "
		3159	. $self->{json_coder}->encode (
		3160	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3161	);
		3162
		3163	$self->send_big_packet ($pkt);
		3164	}
		3165
		3166	=item $client->ext_msg ($type, @msg)
		3167
		3168	Sends an ext event to the client.
		3169
		3170	=cut
		3171
		3172	sub cf::client::ext_msg($$@) {
		3173	my ($self, $type, @msg) = @_;
		3174
		3175	if ($self->extcmd == 2) {
		3176	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3177	} elsif ($self->extcmd == 1) { # TODO: remove
		3178	push @msg, msgtype => "event_$type";
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
		3182
		3183	=item $client->ext_reply ($msgid, @msg)
		3184
		3185	Sends an ext reply to the client.
		3186
		3187	=cut
		3188
		3189	sub cf::client::ext_reply($$@) {
		3190	my ($self, $id, @msg) = @_;
		3191
		3192	return unless $self->extcmd == 2;
		3193
		3194	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3195	}
1685		3196
1686	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1687		3198
1688	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3200	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3201	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		3202
1692	Queries can fail, so check the return code. Or don't, as queries will become	3203	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	3204	become reliable at some point in the future.
1694		3205
1695	=cut	3206	=cut
1696		3207
1697	sub cf::client::query {	3208	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	3217	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		3219
1709	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1711	}	3224	}
1712		3225
1713	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1714	on_reply => sub {	3232	on_reply => sub {
1715	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1716		3234
1717	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1718	# get handled first	3236	# get handled first
1719	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		3239
1722	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		3242
1724	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1725		3244
1726	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	3246	if (@$queue) {
…		…
1729	} else {	3248	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	3250	}
1732	}	3251	}
1733	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($ns, $buf) = @_;
		3255
		3256	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3257
		3258	if (ref $msg) {
		3259	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3260
		3261	my @reply;
		3262
		3263	if (my $cb = $EXTICMD{$type}) {
		3264	@reply = $cb->($ns, @payload);
		3265	}
		3266
		3267	$ns->ext_reply ($reply, @reply)
		3268	if $reply;
		3269
		3270	} else {
		3271	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3272	}
		3273
		3274	cf::override;
		3275	},
1734	);	3276	);
1735		3277
1736	=item $client->coro (\&cb)	3278	=item $client->async (\&cb)
1737		3279
1738	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	3281	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	3282	or loss of connection).
1741		3283
1742	=cut	3284	=cut
1743		3285
1744	sub cf::client::coro {	3286	sub cf::client::async {
1745	my ($self, $cb) = @_;	3287	my ($self, $cb) = @_;
1746		3288
1747	my $coro = &cf::async ($cb);	3289	my $coro = &Coro::async ($cb);
1748		3290
1749	$coro->on_destroy (sub {	3291	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3292	delete $self->{_coro}{$coro+0};
1751	});	3293	});
1752		3294
…		…
1754		3296
1755	$coro	3297	$coro
1756	}	3298	}
1757		3299
1758	cf::client->attach (	3300	cf::client->attach (
1759	on_destroy => sub {	3301	on_client_destroy => sub {
1760	my ($ns) = @_;	3302	my ($ns) = @_;
1761		3303
1762	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1763	},	3305	},
1764	);	3306	);
…		…
1779	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
1781		3323
1782	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
1783		3325
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
1785		3331
1786	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
1787		3333
1788	=pod	3334	=pod
1789		3335
1790	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
1791		3337
1792	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
1793	cf::object::player player	3343	cf::object::player
1794	cf::player peaceful	3344	player
1795	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
1796		3351
1797	=cut	3352	=cut
1798		3353
1799	for (	3354	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
1801	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
1803	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
1804	) {	3361	) {
1805	no strict 'refs';
1806	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1808	for @funs;	3364	for @funs;
1809	}	3365	}
1810		3366
…		…
1825		3381
1826	my $qcode = $code;	3382	my $qcode = $code;
1827	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1828	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
1829		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
1830	local $_;	3389	local $_;
1831	local @safe::cf::_safe_eval_args = values %vars;
1832		3390
1833	my $eval =	3391	my $eval =
1834	"do {\n"	3392	"do {\n"
1835	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1836	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
1837	. $code	3395	. $code
1838	. "\n}"	3396	. "\n}"
1839	;	3397	;
1840		3398
		3399	if ($CFG{safe_eval}) {
1841	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
1842	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1843	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
1844		3408
1845	if ($@) {	3409	if ($@) {
1846	warn "$@";	3410	warn "$@",
1847	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
1848	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
1849	}	3413	}
1850		3414
1851	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
1852	}	3416	}
1853		3417
…		…
1867	=cut	3431	=cut
1868		3432
1869	sub register_script_function {	3433	sub register_script_function {
1870	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
1871		3435
1872	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
1873	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
1874	}	3438	}
1875		3439
1876	=back	3440	=back
1877		3441
1878	=cut	3442	=cut
1879		3443
1880	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
1881		3446
1882	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
1883		3449
1884	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
1886	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3453
1888	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3455
1891	=over 4	3456	trace "loading facedata from $path\n";
1892		3457
1893	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
1894		3459
1895	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
1896	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
1897	C<cf::db_sync>.
1898		3462
1899	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
1900		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1901	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
1902		3466	type => FT_RSRC,
1903	=item cf::db_put $family => $hashref	3467	data => $exp_table,
1904		3468	hash => (Digest::MD5::md5 $exp_table),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3469	};
		3470	cf::cede_to_tick;
1954		3471
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
1959		3474
1960	sub db_get($;$) {	3475	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3477
1966	sub db_put($$;$) {	3478	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3479	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1969	} else {	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1970	$DB->{$_[0]} = $_[1];	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1971	}
1972	db_dirty;
1973	}
1974		3483
1975	cf::global->attach (	3484	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3485	}
1980	);
1981	}
1982		3486
1983	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3488	next unless $info->{smooth};
1985		3489
1986	sub cfg_load {	3490	my $idx = cf::face::find $face
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
1988	or return;
1989		3492
1990	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
1991	*CFG = YAML::Syck::Load <$fh>;	3494	cf::face::set_smooth $idx, $smooth;
		3495	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3496	} else {
		3497	error "smooth face '$info->{smooth}' not found for face '$face'";
		3498	}
1992		3499
		3500	cf::cede_to_tick;
		3501	}
		3502	}
		3503
		3504	{
		3505	my $anims = $facedata->{animinfo};
		3506
		3507	while (my ($anim, $info) = each %$anims) {
		3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3509	cf::cede_to_tick;
		3510	}
		3511
		3512	cf::anim::invalidate_all; # d'oh
		3513	}
		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined $info->{type}) {
		3520	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3521
		3522	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3523	cf::face::set_type $idx, $info->{type};
		3524	} else {
		3525	$RESOURCE{$name} = $info; # unused
		3526	}
		3527
		3528	cf::cede_to_tick;
		3529	}
		3530	}
		3531
		3532	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3533
		3534	1
		3535	}
		3536
		3537	register_exticmd fx_want => sub {
		3538	my ($ns, $want) = @_;
		3539
		3540	while (my ($k, $v) = each %$want) {
		3541	$ns->fx_want ($k, $v);
		3542	}
		3543	};
		3544
		3545	sub load_resource_file($) {
		3546	my $guard = lock_acquire "load_resource_file";
		3547
		3548	my $status = load_resource_file_ $_[0];
		3549	get_slot 0.1, 100;
		3550	cf::arch::commit_load;
		3551
		3552	$status
		3553	}
		3554
		3555	sub reload_regions {
		3556	# HACK to clear player env face cache, we need some signal framework
		3557	# for this (global event?)
		3558	%ext::player_env::MUSIC_FACE_CACHE = ();
		3559
		3560	load_resource_file "$MAPDIR/regions"
		3561	or die "unable to load regions file\n";
		3562
		3563	for (cf::region::list) {
		3564	$_->{match} = qr/$_->{match}/
		3565	if exists $_->{match};
		3566	}
		3567	}
		3568
		3569	sub reload_facedata {
		3570	load_facedata "$DATADIR/facedata"
		3571	or die "unable to load facedata\n";
		3572	}
		3573
		3574	sub reload_archetypes {
		3575	load_resource_file "$DATADIR/archetypes"
		3576	or die "unable to load archetypes\n";
		3577	}
		3578
		3579	sub reload_treasures {
		3580	load_resource_file "$DATADIR/treasures"
		3581	or die "unable to load treasurelists\n";
		3582	}
		3583
		3584	sub reload_sound {
		3585	trace "loading sound config from $DATADIR/sound\n";
		3586
		3587	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3588
		3589	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3590	my $sound = $soundconf->{compat}[$_]
		3591	or next;
		3592
		3593	my $face = cf::face::find "sound/$sound->[1]";
		3594	cf::sound::set $sound->[0] => $face;
		3595	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3596	}
		3597
		3598	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3599	my $face = cf::face::find "sound/$v";
		3600	cf::sound::set $k => $face;
		3601	}
		3602	}
		3603
		3604	sub reload_resources {
		3605	trace "reloading resource files...\n";
		3606
		3607	reload_exp_table;
		3608	reload_materials;
		3609	reload_facedata;
		3610	reload_sound;
		3611	reload_archetypes;
		3612	reload_regions;
		3613	reload_treasures;
		3614
		3615	trace "finished reloading resource files\n";
		3616	}
		3617
		3618	sub reload_config {
		3619	trace "reloading config file...\n";
		3620
		3621	my $config = load_file "$CONFDIR/config";
		3622	utf8::decode $config;
		3623	*CFG = decode_yaml $config;
		3624
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3625	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3626
		3627	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3628	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3629
1995	if (exists $CFG{mlockall}) {	3630	if (exists $CFG{mlockall}) {
1996	eval {	3631	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3632	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3633	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3634	};
2000	warn $@ if $@;	3635	warn $@ if $@;
2001	}	3636	}
2002	}	3637	}
2003		3638
		3639	sub pidfile() {
		3640	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3641	or die "$PIDFILE: $!";
		3642	flock $fh, &Fcntl::LOCK_EX
		3643	or die "$PIDFILE: flock: $!";
		3644	$fh
		3645	}
		3646
		3647	# make sure only one server instance is running at any one time
		3648	sub atomic {
		3649	my $fh = pidfile;
		3650
		3651	my $pid = <$fh>;
		3652	kill 9, $pid if $pid > 0;
		3653
		3654	seek $fh, 0, 0;
		3655	print $fh $$;
		3656	}
		3657
		3658	sub main_loop {
		3659	trace "EV::loop starting\n";
		3660	if (1) {
		3661	EV::loop;
		3662	}
		3663	trace "EV::loop returned\n";
		3664	goto &main_loop unless $REALLY_UNLOOP;
		3665	}
		3666
2004	sub main {	3667	sub main {
		3668	cf::init_globals; # initialise logging
		3669
		3670	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3671	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3672	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3673	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3674
		3675	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3676
2005	# we must not ever block the main coroutine	3677	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3678	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3679	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3680	(async {
2009	Event::one_event;	3681	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3682	EV::loop EV::LOOP_ONESHOT;
		3683	})->prio (Coro::PRIO_MAX);
2011	};	3684	};
2012		3685
2013	cfg_load;	3686	evthread_start IO::AIO::poll_fileno;
2014	db_load;	3687
		3688	cf::sync_job {
		3689	cf::incloader::init ();
		3690
		3691	cf::init_anim;
		3692	cf::init_attackmess;
		3693	cf::init_dynamic;
		3694
		3695	cf::load_settings;
		3696
		3697	reload_resources;
		3698	reload_config;
		3699	db_init;
		3700
		3701	cf::init_uuid;
		3702	cf::init_signals;
		3703	cf::init_skills;
		3704
		3705	cf::init_beforeplay;
		3706
		3707	atomic;
		3708
2015	load_extensions;	3709	load_extensions;
2016	Event::loop;	3710
		3711	utime time, time, $RUNTIMEFILE;
		3712
		3713	# no (long-running) fork's whatsoever before this point(!)
		3714	use POSIX ();
		3715	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3716
		3717	cf::_post_init 0;
		3718	};
		3719
		3720	cf::object::thawer::errors_are_fatal 0;
		3721	info "parse errors in files are no longer fatal from this point on.\n";
		3722
		3723	AE::postpone {
		3724	undef &main; # free gobs of memory :)
		3725	};
		3726
		3727	goto &main_loop;
2017	}	3728	}
2018		3729
2019	#############################################################################	3730	#############################################################################
2020	# initialisation	3731	# initialisation and cleanup
2021		3732
		3733	# install some emergency cleanup handlers
		3734	BEGIN {
		3735	our %SIGWATCHER = ();
		3736	for my $signal (qw(INT HUP TERM)) {
		3737	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3738	cf::cleanup "SIG$signal";
		3739	};
		3740	}
		3741	}
		3742
		3743	sub write_runtime_sync {
		3744	my $t0 = AE::time;
		3745
		3746	# first touch the runtime file to show we are still running:
		3747	# the fsync below can take a very very long time.
		3748
		3749	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3750
		3751	my $guard = cf::lock_acquire "write_runtime";
		3752
		3753	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3754	or return;
		3755
		3756	my $value = $cf::RUNTIME + 90 + 10;
		3757	# 10 is the runtime save interval, for a monotonic clock
		3758	# 60 allows for the watchdog to kill the server.
		3759
		3760	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3761	and return;
		3762
		3763	# always fsync - this file is important
		3764	aio_fsync $fh
		3765	and return;
		3766
		3767	# touch it again to show we are up-to-date
		3768	aio_utime $fh, undef, undef;
		3769
		3770	close $fh
		3771	or return;
		3772
		3773	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3774	and return;
		3775
		3776	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3777
		3778	1
		3779	}
		3780
		3781	our $uuid_lock;
		3782	our $uuid_skip;
		3783
		3784	sub write_uuid_sync($) {
		3785	$uuid_skip ||= $_[0];
		3786
		3787	return if $uuid_lock;
		3788	local $uuid_lock = 1;
		3789
		3790	my $uuid = "$LOCALDIR/uuid";
		3791
		3792	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3793	or return;
		3794
		3795	my $value = uuid_seq uuid_cur;
		3796
		3797	unless ($value) {
		3798	info "cowardly refusing to write zero uuid value!\n";
		3799	return;
		3800	}
		3801
		3802	my $value = uuid_str $value + $uuid_skip;
		3803	$uuid_skip = 0;
		3804
		3805	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3806	and return;
		3807
		3808	# always fsync - this file is important
		3809	aio_fsync $fh
		3810	and return;
		3811
		3812	close $fh
		3813	or return;
		3814
		3815	aio_rename "$uuid~", $uuid
		3816	and return;
		3817
		3818	trace "uuid file written ($value).\n";
		3819
		3820	1
		3821
		3822	}
		3823
		3824	sub write_uuid($$) {
		3825	my ($skip, $sync) = @_;
		3826
		3827	$sync ? write_uuid_sync $skip
		3828	: async { write_uuid_sync $skip };
		3829	}
		3830
		3831	sub emergency_save() {
		3832	my $freeze_guard = cf::freeze_mainloop;
		3833
		3834	info "emergency_perl_save: enter\n";
		3835
		3836	# this is a trade-off: we want to be very quick here, so
		3837	# save all maps without fsync, and later call a global sync
		3838	# (which in turn might be very very slow)
		3839	local $USE_FSYNC = 0;
		3840
		3841	cf::sync_job {
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843
		3844	# use a peculiar iteration method to avoid tripping on perl
		3845	# refcount bugs in for. also avoids problems with players
		3846	# and maps saved/destroyed asynchronously.
		3847	info "emergency_perl_save: begin player save\n";
		3848	for my $login (keys %cf::PLAYER) {
		3849	my $pl = $cf::PLAYER{$login} or next;
		3850	$pl->valid or next;
		3851	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3852	$pl->save;
		3853	}
		3854	info "emergency_perl_save: end player save\n";
		3855
		3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	info "emergency_perl_save: begin map save\n";
		3859	for my $path (keys %cf::MAP) {
		3860	my $map = $cf::MAP{$path} or next;
		3861	$map->valid or next;
		3862	$map->save;
		3863	}
		3864	info "emergency_perl_save: end map save\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin database checkpoint\n";
		3869	BDB::db_env_txn_checkpoint $DB_ENV;
		3870	info "emergency_perl_save: end database checkpoint\n";
		3871
		3872	info "emergency_perl_save: begin write uuid\n";
		3873	write_uuid_sync 1;
		3874	info "emergency_perl_save: end write uuid\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	trace "emergency_perl_save: syncing database to disk";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880
		3881	info "emergency_perl_save: starting sync\n";
		3882	IO::AIO::aio_sync sub {
		3883	info "emergency_perl_save: finished sync\n";
		3884	};
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: flushing outstanding aio requests";
		3889	while (IO::AIO::nreqs || BDB::nreqs) {
		3890	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3891	}
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
		3894	};
		3895
		3896	info "emergency_perl_save: leave\n";
		3897	}
		3898
		3899	sub post_cleanup {
		3900	my ($make_core) = @_;
		3901
		3902	IO::AIO::flush;
		3903
		3904	error Carp::longmess "post_cleanup backtrace"
		3905	if $make_core;
		3906
		3907	my $fh = pidfile;
		3908	unlink $PIDFILE if <$fh> == $$;
		3909	}
		3910
		3911	# a safer delete_package, copied from Symbol
		3912	sub clear_package($) {
		3913	my $pkg = shift;
		3914
		3915	# expand to full symbol table name if needed
		3916	unless ($pkg =~ /^main::.*::$/) {
		3917	$pkg = "main$pkg" if $pkg =~ /^::/;
		3918	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3919	$pkg .= '::' unless $pkg =~ /::$/;
		3920	}
		3921
		3922	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3923	my $stem_symtab = *{$stem}{HASH};
		3924
		3925	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3926	or return;
		3927
		3928	# clear all symbols
		3929	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3930	for my $name (keys %$leaf_symtab) {
		3931	_gv_clear *{"$pkg$name"};
		3932	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3933	}
		3934	}
		3935
2022	sub reload() {	3936	sub do_reload_perl() {
2023	# can/must only be called in main	3937	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3938	unless (in_main) {
2025	warn "can only reload from main coroutine\n";	3939	error "can only reload from main coroutine";
2026	return;	3940	return;
2027	}	3941	}
2028		3942
2029	warn "reloading...";	3943	return if $RELOAD++;
2030		3944
2031	my $guard = freeze_mainloop;	3945	my $t1 = AE::time;
		3946
		3947	while ($RELOAD) {
		3948	cf::get_slot 0.1, -1, "reload_perl";
		3949	info "perl_reload: reloading...";
		3950
		3951	trace "perl_reload: entering sync_job";
		3952
		3953	cf::sync_job {
2032	cf::emergency_save;	3954	#cf::emergency_save;
2033		3955
2034	eval {	3956	trace "perl_reload: cancelling all extension coros";
2035	# if anything goes wrong in here, we should simply crash as we already saved
2036
2037	# cancel all watchers
2038	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}
2041
2042	# cancel all extension coros
2043	$_->cancel for values %EXT_CORO;	3957	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3958	%EXT_CORO = ();
2045		3959
2046	# unload all extensions	3960	trace "perl_reload: removing commands";
2047	for (@exts) {	3961	%COMMAND = ();
2048	warn "unloading <$_>";
2049	unload_extension $_;
2050	}
2051		3962
2052	# unload all modules loaded from $LIBDIR	3963	trace "perl_reload: removing ext/exti commands";
2053	while (my ($k, $v) = each %INC) {	3964	%EXTCMD = ();
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3965	%EXTICMD = ();
2055		3966
2056	warn "removing <$k>";	3967	trace "perl_reload: unloading/nuking all extensions";
2057	delete $INC{$k};	3968	for my $pkg (@EXTS) {
		3969	trace "... unloading $pkg";
2058		3970
2059	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;
2061
2062	if (my $cb = $k->can ("unload_module")) {	3971	if (my $cb = $pkg->can ("unload")) {
		3972	eval {
2063	$cb->();	3973	$cb->($pkg);
		3974	1
		3975	} or error "$pkg unloaded, but with errors: $@";
		3976	}
		3977
		3978	trace "... clearing $pkg";
		3979	clear_package $pkg;
2064	}	3980	}
2065		3981
2066	Symbol::delete_package $k;	3982	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3983	while (my ($k, $v) = each %INC) {
		3984	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3985
		3986	trace "... unloading $k";
		3987	delete $INC{$k};
		3988
		3989	$k =~ s/\.pm$//;
		3990	$k =~ s/\//::/g;
		3991
		3992	if (my $cb = $k->can ("unload_module")) {
		3993	$cb->();
		3994	}
		3995
		3996	clear_package $k;
2067	}	3997	}
2068		3998
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3999	trace "perl_reload: getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	4000	clear_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4001	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		4002
2077	# remove register_script_function callbacks	4003	trace "perl_reload: unloading cf.pm \"a bit\"";
2078	# TODO
2079
2080	# unload cf.pm "a bit"
2081	delete $INC{"cf.pm"};	4004	delete $INC{"cf.pm"};
		4005	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2082		4006
2083	# don't, removes xs symbols, too,	4007	# don't, removes xs symbols, too,
2084	# and global variables created in xs	4008	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	4009	#clear_package __PACKAGE__;
2086		4010
2087	# reload cf.pm	4011	info "perl_reload: unload completed, starting to reload now";
2088	warn "reloading cf.pm";	4012
		4013	trace "perl_reload: reloading cf.pm";
2089	require cf;	4014	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4015	cf::_connect_to_perl_1;
2091		4016
2092	# load config and database again	4017	trace "perl_reload: loading config and database again";
2093	cf::cfg_load;	4018	cf::reload_config;
2094	cf::db_load;
2095		4019
2096	# load extensions	4020	trace "perl_reload: loading extensions";
2097	warn "load extensions";
2098	cf::load_extensions;	4021	cf::load_extensions;
2099		4022
2100	# reattach attachments to objects	4023	if ($REATTACH_ON_RELOAD) {
2101	warn "reattach";	4024	trace "perl_reload: reattaching attachments to objects/players";
2102	_global_reattach;	4025	_global_reattach; # objects, sockets
		4026	trace "perl_reload: reattaching attachments to maps";
		4027	reattach $_ for values %MAP;
		4028	trace "perl_reload: reattaching attachments to players";
		4029	reattach $_ for values %PLAYER;
		4030	}
		4031
		4032	cf::_post_init 1;
		4033
		4034	trace "perl_reload: leaving sync_job";
		4035
		4036	1
		4037	} or do {
		4038	error $@;
		4039	cf::cleanup "perl_reload: error, exiting.";
		4040	};
		4041
		4042	--$RELOAD;
		4043	}
		4044
		4045	$t1 = AE::time - $t1;
		4046	info "perl_reload: completed in ${t1}s\n";
		4047	};
		4048
		4049	our $RELOAD_WATCHER; # used only during reload
		4050
		4051	sub reload_perl() {
		4052	# doing reload synchronously and two reloads happen back-to-back,
		4053	# coro crashes during coro_state_free->destroy here.
		4054
		4055	$RELOAD_WATCHER ||= cf::async {
		4056	Coro::AIO::aio_wait cache_extensions;
		4057
		4058	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4059	do_reload_perl;
		4060	undef $RELOAD_WATCHER;
		4061	};
2103	};	4062	};
2104
2105	if ($@) {
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};
2113
2114	#############################################################################
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	4063	}
2156
2157	register "<global>", __PACKAGE__;
2158		4064
2159	register_command "reload" => sub {	4065	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	4066	my ($who, $arg) = @_;
2161		4067
2162	if ($who->flag (FLAG_WIZ)) {	4068	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	4069	$who->message ("reloading server.");
		4070	async {
		4071	$Coro::current->{desc} = "perl_reload";
		4072	reload_perl;
		4073	};
2166	}	4074	}
2167	};	4075	};
2168		4076
2169	unshift @INC, $LIBDIR;	4077	#############################################################################
2170		4078
2171	$TICK_WATCHER = Event->timer (	4079	my $bug_warning = 0;
2172	reentrant => 0,
2173	prio => 0,
2174	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,
2176	cb => sub {
2177	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;
2180		4080
2181	# if we are delayed by four ticks or more, skip them all	4081	sub wait_for_tick() {
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4082	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2183		4083
2184	$TICK_WATCHER->at ($NEXT_TICK);	4084	$WAIT_FOR_TICK->wait;
2185	$TICK_WATCHER->start;	4085	}
		4086
		4087	sub wait_for_tick_begin() {
		4088	return Coro::AnyEvent::poll 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;
2186	},	4100	}
2187	);
2188		4101
2189	IO::AIO::max_poll_time $TICK * 0.2;	4102	cf::one_tick; # one server iteration
2190		4103
2191	Event->io (	4104	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2192	fd => IO::AIO::poll_fileno,
2193	poll => 'r',
2194	prio => 5,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198		4105
2199	Event->timer (	4106	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2200	data => WF_AUTOCANCEL,	4107	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2201	after => 0,	4108	Coro::async_pool {
2202	interval => 10,	4109	$Coro::current->{desc} = "runtime saver";
2203	cb => sub {
2204	(Coro::unblock_sub {
2205	write_runtime	4110	write_runtime_sync
2206	or warn "ERROR: unable to write runtime file: $!";	4111	or error "ERROR: unable to write runtime file: $!";
2207	})->();	4112	};
2208	},	4113	}
2209	);	4114
		4115	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4116	$sig->send;
		4117	}
		4118	$WAIT_FOR_TICK->broadcast;
		4119
		4120	$LOAD = ($NOW - $TICK_START) / $TICK;
		4121	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4122
		4123	if (0) {
		4124	if ($NEXT_TICK) {
		4125	my $jitter = $TICK_START - $NEXT_TICK;
		4126	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4127	debug "jitter $JITTER\n";#d#
		4128	}
		4129	}
		4130	}
		4131
		4132	{
		4133	# configure BDB
		4134
		4135	BDB::min_parallel 16;
		4136	BDB::max_poll_reqs $TICK * 0.1;
		4137	#$AnyEvent::BDB::WATCHER->priority (1);
		4138
		4139	unless ($DB_ENV) {
		4140	$DB_ENV = BDB::db_env_create;
		4141	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4142	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4143	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4144	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4145	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4146
		4147	cf::sync_job {
		4148	eval {
		4149	BDB::db_env_open
		4150	$DB_ENV,
		4151	$BDBDIR,
		4152	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4153	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4154	0666;
		4155
		4156	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4157	};
		4158
		4159	cf::cleanup "db_env_open(db): $@" if $@;
		4160	};
		4161	}
		4162
		4163	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4164	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4165	};
		4166	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4167	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4168	};
		4169	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4170	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4171	};
		4172	}
		4173
		4174	{
		4175	# configure IO::AIO
		4176
		4177	IO::AIO::min_parallel 8;
		4178	IO::AIO::max_poll_time $TICK * 0.1;
		4179	undef $AnyEvent::AIO::WATCHER;
		4180	}
		4181
		4182	our $_log_backtrace;
		4183	our $_log_backtrace_last;
		4184
		4185	sub _log_backtrace {
		4186	my ($msg, @addr) = @_;
		4187
		4188	$msg =~ s/\n$//;
		4189
		4190	if ($_log_backtrace_last eq $msg) {
		4191	LOG llevInfo, "[ABT] $msg\n";
		4192	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4193	# limit the # of concurrent backtraces
		4194	} elsif ($_log_backtrace < 2) {
		4195	$_log_backtrace_last = $msg;
		4196	++$_log_backtrace;
		4197	my $perl_bt = Carp::longmess $msg;
		4198	async {
		4199	$Coro::current->{desc} = "abt $msg";
		4200
		4201	my @bt = fork_call {
		4202	@addr = map { sprintf "%x", $_ } @addr;
		4203	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4204	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4205	or die "addr2line: $!";
		4206
		4207	my @funcs;
		4208	my @res = <$fh>;
		4209	chomp for @res;
		4210	while (@res) {
		4211	my ($func, $line) = splice @res, 0, 2, ();
		4212	push @funcs, "[$func] $line";
		4213	}
		4214
		4215	@funcs
		4216	};
		4217
		4218	LOG llevInfo, "[ABT] $perl_bt\n";
		4219	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4220	LOG llevInfo, "[ABT] $_\n" for @bt;
		4221	--$_log_backtrace;
		4222	};
		4223	} else {
		4224	LOG llevInfo, "[ABT] $msg\n";
		4225	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4226	}
		4227	}
		4228
		4229	# load additional modules
		4230	require "cf/$_.pm" for @EXTRA_MODULES;
		4231	cf::_connect_to_perl_2;
2210		4232
2211	END { cf::emergency_save }	4233	END { cf::emergency_save }
2212		4234
2213	1	4235	1
2214		4236

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