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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.620 by root, Tue Aug 11 02:13:26 2015 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 AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
20	use Digest::MD5;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
21	use Fcntl;	60	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	61	use YAML::XS ();
24	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
34		85
35	our %COMMAND = ();	86	our %COMMAND = ();
36	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
38		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	98	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
45	our $NOW;	144	our $NOW;
46		145
47	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
48		149
49	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		152
52	our %MAP; # all maps	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	154	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	155	our $JITTER; # average jitter
55	our %EXT_CORO;	156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
56		165
57	binmode STDOUT;	166	binmode STDOUT;
58	binmode STDERR;	167	binmode STDERR;
59		168
60	# read virtual server time, if available	169	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
65	}	174	}
66		175
67	mkdir cf::localdir;	176	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		177
73	# a special map that is always available	178	mkdir $_
74	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
75	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
76		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
77	#############################################################################	189	#############################################################################
78		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
79	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
80		203
81	=over 4	204	=over 4
82		205
83	=item $cf::UPTIME	206	=item $cf::UPTIME
84		207
85	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
86		224
87	=item $cf::RUNTIME	225	=item $cf::RUNTIME
88		226
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	228	every server tick.
91		229
92	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		233
94	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
96		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
97	=item $cf::NOW	245	=item $cf::LOAD
98		246
99	The time of the last (current) server tick.	247	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		248
105	=item %cf::CFG	249	=item %cf::CFG
106		250
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	252	from wherever your confdir points to.
109		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
		289
110	=back	290	=back
111		291
112	=cut	292	=cut
113		293
114	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	301	my $msg = join "", @_;
117	utf8::encode $msg;
118		302
119	$msg .= "\n"	303	$msg .= "\n"
120	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
121		305
122	LOG llevError, "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	307
124	}	308	LOG llevWarn, $msg;
		309	};
		310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
125		324
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		332
133	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	334	# within the Safe compartment.
135	for my $pkg (qw(	335	for my $pkg (qw(
136	cf::global cf::attachable	336	cf::global cf::attachable
137	cf::object cf::object::player	337	cf::object cf::object::player
138	cf::client cf::player	338	cf::client cf::player
139	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
140	cf::map cf::party cf::region	341	cf::party cf::region
141	)) {	342	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	344	}
145		345
146	$Event::DIED = sub {	346	$EV::DIED = sub {
147	warn "error in event callback: @_";	347	warn "error in event callback: $@";
148	};	348	};
149		349
150	my %ext_pkg;	350	#############################################################################
151	my @exts;	351
152	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
153		356
154	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
155		358
156	=over 4	359	=over 4
157		360
158	=cut	361	=item dumpval $ref
159		362
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
161		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
162	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
163		437
164	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
165		439
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
174		441
175	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
176		443
177	=cut	444	=cut
178		445
179	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
181	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
182	}	511	}
183		512
184	=item cf::lock_wait $string	513	=item cf::lock_wait $string
185		514
186	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
187		516
188	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
189		518
190	Wait until the given lock is available and then acquires it and returns	519	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,	520	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	521	for example when the coroutine gets canceled), the lock is automatically
193	returned.	522	returned.
194		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
195	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
197		529
198	=cut	530	=item $locked = cf::lock_active $string
199		531
200	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
201		537
202	sub lock_wait($) {	538	sub lock_wait($) {
203	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	540	}
211		541
212	sub lock_acquire($) {	542	sub lock_acquire($) {
213	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
214		545
215	# wait, to be sure we are not locked	546	sub lock_active($) {
216	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	548	}
225		549
226	sub freeze_mainloop {	550	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
228		552
229	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	554	}
231	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
232	}	639	}
233		640
234	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
235		642
236	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		648
242	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
243		650
244	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
245		652
246	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
249		657
250	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
253	fast or be very important.	661	fast or be very important.
…		…
255	=cut	663	=cut
256		664
257	sub sync_job(&) {	665	sub sync_job(&) {
258	my ($job) = @_;	666	my ($job) = @_;
259		667
260	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
261	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
263		673
264	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	675
266	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
267		677
268	my $busy = 1;	678	my $busy = 1;
269	my @res;	679	my @res;
270		680
271	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	683	@res = eval { $job->() };
273	warn $@ if $@;	684	error $@ if $@;
274	undef $busy;	685	undef $busy;
275	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
276		687
277	while ($busy) {	688	while ($busy) {
278	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::run EV::RUN_ONCE;
279	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
280		699
281	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
282	} else {	701	} else {
283	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
284		703
…		…
286	}	705	}
287	}	706	}
288		707
289	=item $coro = cf::async_ext { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
290		709
291	Like async, but this coro is automcatially being canceled when the	710	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	711	extension calling this is being unloaded.
293		712
294	=cut	713	=cut
295		714
296	sub async_ext(&) {	715	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
305		724
306	$coro	725	$coro
307	}	726	}
308		727
309	sub write_runtime {	728	=item fork_call { }, @args
310	my $runtime = cf::localdir . "/runtime";
311		729
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
313	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
314		734
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		736
319	aio_fsync $fh	737	sub post_fork {
320	and return;	738	reset_signals;
		739	}
321		740
322	close $fh	741	sub fork_call(&@) {
323	or return;	742	my ($cb, @args) = @_;
324		743
325	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
326	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
327		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
328	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
329	}	927	}
330		928
331	=back	929	=back
332		930
333	=cut	931	=cut
334		932
335	#############################################################################	933	#############################################################################
336		934
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454
455	#############################################################################
456
457	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
458		936
459	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
460	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
461	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
462		940
463	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
464	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
465	crossfire+).	943	Deliantra).
466		944
467	=over 4	945	=over 4
468		946
469	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
470		948
…		…
514	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
515		993
516	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
517	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
518		996
519	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
520	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
521		999
522	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
523		1001
524	=over 4	1002	=over 4
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	1063	our @CB_MAP = ();
586		1064
587	my %attachment;	1065	my %attachment;
588		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
589	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
591		1075
592	use sort 'stable';	1076	use sort 'stable';
593		1077
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
628		1112
629	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		1117
634	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
636		1120
637	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
642		1126
643	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		1129
646	} elsif (ref $type) {	1130	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
648		1132
649	} else {	1133	} else {
650	shift @arg;	1134	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
652	}	1136	}
653	}	1137	}
654	}	1138	}
655		1139
656	sub _object_attach {	1140	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
667	}	1151	}
668		1152
669	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
670	} else {	1154	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1156	}
673		1157
674	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
675	}	1159	}
676		1160
…		…
678	if (ref $_[0]) {	1162	if (ref $_[0]) {
679	_object_attach @_;	1163	_object_attach @_;
680	} else {	1164	} else {
681	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
682	}	1166	}
		1167	_recalc_want;
683	};	1168	};
684		1169
685	# all those should be optimised	1170	# all those should be optimised
686	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
691	reattach ($obj);	1176	reattach ($obj);
692	} else {	1177	} else {
693	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
694	}	1179	}
		1180	_recalc_want;
695	};	1181	};
696		1182
697	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
699		1185
…		…
714	";	1200	";
715	die if $@;	1201	die if $@;
716	}	1202	}
717		1203
718	our $override;	1204	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1206
721	sub override {	1207	sub override {
722	$override = 1;	1208	$override = 1;
723	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
724	}	1210	}
725		1211
726	sub do_invoke {	1212	sub do_invoke {
727	my $event = shift;	1213	my $event = shift;
728	my $callbacks = shift;	1214	my $callbacks = shift;
729		1215
730	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
731		1217
732	local $override;	1218	local $override;
733		1219
734	for (@$callbacks) {	1220	for (@$callbacks) {
735	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
736		1222
737	if ($@) {	1223	if ($@) {
738	warn "$@";
739	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
740	override;	1225	override;
741	}	1226	}
742		1227
743	return 1 if $override;	1228	return 1 if $override;
744	}	1229	}
745		1230
746	0	1231	0
747	}	1232	}
748		1233
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1235
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1237
753	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
754		1239
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1243
759	=back	1244	=back
760		1245
761	=cut	1246	=cut
762		1247
763	#############################################################################	1248	#############################################################################
764	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
765		1292
766	sub reattach {	1293	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1295	my ($obj) = @_;
		1296
		1297	# no longer needed after getting rid of delete_package?
		1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		1299
770	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
771		1301
772	@$registry = ();	1302	@$registry = ();
773		1303
…		…
778	for (@$attach) {	1308	for (@$attach) {
779	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
780	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
781	}	1311	}
782	} else {	1312	} else {
783	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
784	}	1314	}
785	}	1315	}
786	}	1316	}
787		1317
788	cf::attachable->attach (	1318	cf::attachable->attach (
789	prio => -1000000,	1319	prio => -1000000,
790	on_instantiate => sub {	1320	on_instantiate => sub {
791	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
792		1322
793	$data = from_json $data;	1323	$data = decode_json $data;
794		1324
795	for (@$data) {	1325	for (@$data) {
796	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
797		1327
798	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
814	sub object_freezer_save {	1344	sub object_freezer_save {
815	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
816		1346
817	sync_job {	1347	sync_job {
818	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
819	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
820	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
821		1353
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1357	if ($cf::USE_FSYNC) {
		1358	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;
825	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
826	close $fh;	1361	aio_close $fh;
827		1362
828	if (@$objs) {	1363	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($cf::USE_FSYNC) {
		1369	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;
833	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
834	close $fh;	1372	aio_close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
836	}	1374	}
837	} else {	1375	} else {
838	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
839	}	1377	}
840		1378
841	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
842	} else {	1383	} else {
843	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
844	}	1385	}
845	} else {	1386	} else {
846	aio_unlink $filename;	1387	aio_unlink $filename;
847	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
848	}	1389	}
849	}	1390	};
850	}	1391	}
851		1392
852	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
854		1395
…		…
866	or return;	1407	or return;
867		1408
868	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
869	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
870	or return;	1411	or return;
		1412
871	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
872	}	1415	}
873		1416
		1417	utf8::decode (my $decname = $filename);
874	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
876	return ($data, $av);	1422	($data, $av)
877	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
878		1430
879	#############################################################################	1431	#############################################################################
880	# command handling &c	1432	# command handling &c
881		1433
882	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
883		1435
884	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
885	$name.	1437	$name.
886		1438
887	=cut	1439	=cut
…		…
893	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
894		1446
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1448	}
897		1449
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
899		1451
900	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
901		1457
902	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
903	called.
904		1459
905	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
906		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
907	sub register_extcmd {	1482	sub register_extcmd($$) {
908	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
909		1484
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
914	}	1486	}
		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
915		1507
916	cf::player->attach (	1508	cf::player->attach (
917	on_command => sub {	1509	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
919		1511
920	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
921	or return;	1513	or return;
922		1514
…		…
927	cf::override;	1519	cf::override;
928	},	1520	},
929	on_extcmd => sub {	1521	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
931		1523
932	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1525
934	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
937	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
938	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
939	}	1547	}
		1548
940	} else {	1549	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1551	}
943		1552
944	cf::override;	1553	cf::override;
945	},	1554	},
946	);	1555	);
947		1556
948	sub register {	1557	# "readahead" all extensions
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	1558	sub cache_extensions {
955	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
956		1560
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
958	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
959	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962
963	warn "loading '$path' into '$pkg'\n";
964
965	open my $fh, "<:utf8", $path
966	or die "$path: $!";
967
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }
997
998	# remove commands
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}	1564	}
1007	}	1565	};
1008		1566
1009	# remove extcmds	1567	$grp
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1568	}
1011	delete $EXTCMD{$name};
1012	}
1013		1569
1014	if (my $cb = $pkg->can ("unload")) {	1570	sub _ext_cfg_reg($$$$) {
1015	eval {	1571	my ($rvar, $varname, $cfgname, $default) = @_;
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020		1572
1021	Symbol::delete_package $pkg;	1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1022	}	1579	}
1023		1580
1024	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
1025	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	1590	next unless -r $path;
1027	eval {	1591
1028	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
1029	1	1664	}
1030	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
1031	}	1677	};
1032	}	1678	}
1033		1679
1034	#############################################################################	1680	#############################################################################
1035	# load/save/clean perl data associated with a map
1036		1681
1037	*cf::mapsupport::on_clean = sub {	1682	=back
		1683
		1684	=head2 CORE EXTENSIONS
		1685
		1686	Functions and methods that extend core deliantra objects.
		1687
		1688	=cut
		1689
		1690	package cf::player;
		1691
		1692	use Coro::AIO;
		1693
		1694	=head3 cf::player
		1695
		1696	=over 4
		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
		1712	=item cf::player::find $login
		1713
		1714	Returns the given player object, loading it if necessary (might block).
		1715
		1716	=cut
		1717
		1718	sub playerdir($) {
		1719	"$PLAYERDIR/"
		1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1721	}
		1722
		1723	sub path($) {
		1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1725
		1726	(playerdir $login) . "/playerdata"
		1727	}
		1728
		1729	sub find_active($) {
		1730	$cf::PLAYER{$_[0]}
		1731	and $cf::PLAYER{$_[0]}->active
		1732	and $cf::PLAYER{$_[0]}
		1733	}
		1734
		1735	sub exists($) {
1038	my ($map) = @_;	1736	my ($login) = @_;
1039		1737
1040	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
1041	defined $path or return;	1739	or !aio_stat path $login
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}	1740	}
1054		1741
1055	# TODO: compatibility cruft, remove when no longer needed	1742	sub find($) {
		1743	return $cf::PLAYER{$_[0]} || do {
		1744	my $login = $_[0];
		1745
		1746	my $guard = cf::lock_acquire "user_find:$login";
		1747
		1748	$cf::PLAYER{$_[0]} || do {
		1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
		1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
		1764	$cf::PLAYER{$login} = $pl
		1765	}
		1766	}
		1767	}
		1768
1056	cf::player->attach (	1769	cf::player->attach (
1057	on_load => sub {	1770	on_load => sub {
1058	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
1059		1772
1060	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
1062	$o->set_ob_key_value ("_perl_data");
1063		1775
1064	%$o = %{ Storable::thaw pack "H*", $value };	1776	$pl->ob->current_weapon ($slots->[0]);
1065	}	1777	$pl->combat_ob ($slots->[1]);
1066	}	1778	$pl->ranged_ob ($slots->[2]);
1067	},	1779	},
1068	);	1780	);
1069		1781
1070	#############################################################################	1782	sub save($) {
		1783	my ($pl) = @_;
1071		1784
1072	=head2 CORE EXTENSIONS	1785	return if $pl->{deny_save};
1073		1786
1074	Functions and methods that extend core crossfire objects.	1787	my $path = path $pl;
		1788	my $guard = cf::lock_acquire "user_save:$path";
1075		1789
1076	=head3 cf::player	1790	return if $pl->{deny_save};
		1791
		1792	aio_mkdir playerdir $pl, 0770;
		1793	$pl->{last_save} = $cf::RUNTIME;
		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
		1800	$pl->save_pl ($path);
		1801	cf::cede_to_tick;
		1802	}
		1803
		1804	sub new($) {
		1805	my ($login) = @_;
		1806
		1807	my $self = create;
		1808
		1809	$self->ob->name ($login);
		1810	$self->{deny_save} = 1;
		1811
		1812	$cf::PLAYER{$login} = $self;
		1813
		1814	$self
		1815	}
		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
		1827	=item $pl->quit_character
		1828
		1829	Nukes the player without looking back. If logged in, the connection will
		1830	be destroyed. May block for a long time.
		1831
		1832	=cut
		1833
		1834	sub quit_character {
		1835	my ($pl) = @_;
		1836
		1837	my $name = $pl->ob->name;
		1838
		1839	$pl->{deny_save} = 1;
		1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1841
		1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
		1849	$pl->ns->destroy if $pl->ns;
		1850
		1851	my $path = playerdir $pl;
		1852	my $temp = "$path~$cf::RUNTIME~deleting~";
		1853	aio_rename $path, $temp;
		1854	delete $cf::PLAYER{$pl->ob->name};
		1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
		1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
		1877	}
		1878
		1879	=item cf::player::list_logins
		1880
		1881	Returns am arrayref of all valid playernames in the system, can take a
		1882	while and may block, so not sync_job-capable, ever.
		1883
		1884	=cut
		1885
		1886	sub list_logins {
		1887	my $dirs = aio_readdir $PLAYERDIR
		1888	or return [];
		1889
		1890	my @logins;
		1891
		1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
		1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1899	aio_read $fh, 0, 512, my $buf, 0 or next;
		1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
		1902
		1903	utf8::decode $login;
		1904	push @logins, $login;
		1905	}
		1906
		1907	\@logins
		1908	}
		1909
		1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
		1913
		1914	Returns an arrayref of map paths that are private for this
		1915	player. May block.
		1916
		1917	=cut
		1918
		1919	sub maps($) {
		1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
		1923
		1924	my $files = aio_readdir playerdir $pl
		1925	or return;
		1926
		1927	my @paths;
		1928
		1929	for (@$files) {
		1930	utf8::decode $_;
		1931	next if /\.(?:pl|pst)$/;
		1932	next unless /^$PATH_SEP/o;
		1933
		1934	push @paths, cf::map::normalise "~$pl/$_";
		1935	}
		1936
		1937	\@paths
		1938	}
		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
		1944	=item $player->ext_msg ($type, @msg)
		1945
		1946	Sends an ext event to the client.
		1947
		1948	=cut
		1949
		1950	sub ext_msg($$@) {
		1951	my ($self, $type, @msg) = @_;
		1952
		1953	$self->ns->ext_msg ($type, @msg);
		1954	}
		1955
		1956	=head3 cf::region
1077		1957
1078	=over 4	1958	=over 4
1079		1959
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut	1960	=cut
1085		1961
1086	sub cf::player::exists($) {	1962	package cf::region;
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090		1963
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1964	=item cf::region::find_by_path $path
1092		1965
1093	Sends an ext reply to the player.	1966	Tries to decuce the likely region for a map knowing only its path.
1094		1967
1095	=cut	1968	=cut
1096		1969
1097	sub cf::player::ext_reply($$$%) {	1970	sub find_by_path($) {
1098	my ($self, $id, %msg) = @_;	1971	my ($path) = @_;
1099		1972
1100	$msg{msgid} = $id;	1973	$path =~ s/^~[^\/]*//; # skip ~login
1101		1974
1102	$self->send ("ext " . to_json \%msg);	1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
1103	}	1985	}
1104		1986
1105	=back	1987	=back
1106
1107		1988
1108	=head3 cf::map	1989	=head3 cf::map
1109		1990
1110	=over 4	1991	=over 4
1111		1992
…		…
1114	package cf::map;	1995	package cf::map;
1115		1996
1116	use Fcntl;	1997	use Fcntl;
1117	use Coro::AIO;	1998	use Coro::AIO;
1118		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
1119	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1121		2006
1122	sub generate_random_map {	2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
		2036	my ($self, $merge) = @_;
		2037
		2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
		2041
		2042	$self->SUPER::thawer_merge ($merge);
		2043	}
		2044
		2045	sub normalise {
1123	my ($path, $rmp) = @_;	2046	my ($path, $base) = @_;
1124		2047
1125	# mit "rum" bekleckern, nicht	2048	$path = "$path"; # make sure it's a string
1126	cf::map::_create_random_map	2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
1127	$path,	2077	$path
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})
1139	}	2078	}
1140		2079
1141	# and all this just because we cannot iterate over	2080	sub new_from_path {
1142	# all maps in C++...	2081	my (undef, $path, $base) = @_;
1143	sub change_all_map_light {	2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
1144	my ($change) = @_;	2102	my ($self) = @_;
1145		2103
1146	$_->change_map_light ($change)	2104	$self
1147	for grep $_->outdoor, values %cf::MAP;
1148	}	2105	}
1149		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
1150	sub try_load_header($) {	2157	sub load_header_from($) {
1151	my ($path) = @_;	2158	my ($self, $path) = @_;
1152		2159
1153	utf8::encode $path;	2160	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1155	or return;	2162	or return;
1156		2163
1157	my $map = cf::map::new	2164	$self->_load_header ($f)
1158	or return;	2165	or return;
1159		2166
1160	# for better error messages only, will be overwritten	2167	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	2168	$f->resolve_delayed_derefs;
1162		2169
1163	$map->load_header ($path)	2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
1164	or return;	2217	or return;
		2218	$self->prepare_orig;
		2219	}
1165		2220
1166	$map->{load_path} = $path;	2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
1167		2223
1168	$map	2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
		2227	1
1169	}	2228	}
1170		2229
1171	sub find;	2230	sub find;
1172	sub find {	2231	sub find {
1173	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1174		2233
1175	#warn "find<$path,$origin>\n";#d#	2234	cf::cede_to_tick;
1176		2235
1177	$path = new cf::path $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1178	my $key = $path->as_string;
1179		2237
1180	cf::lock_wait "map_find:$key";	2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1181
1182	$cf::MAP{$key} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1184		2240
1185	# do it the slow way	2241	$cf::MAP{$path} || do {
1186	my $map = try_load_header $path->save_path;	2242	my $map = new_from_path cf::map $path
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	2243	or return;
1204		2244
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1217		2246
1218	Coro::cede;	2247	$map->load_header
		2248	or return;
1219		2249
1220	if ($map->should_reset) {	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1221	$map->reset;	2255	$map->reset;
1222	undef $guard;
1223	$map = find $path	2256	return find $path;
1224	or return;
1225	}	2257	}
1226		2258
1227	$cf::MAP{$key} = $map	2259	$cf::MAP{$path} = $map
1228	}	2260	}
1229	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1230		2265
1231	sub load {	2266	sub load {
1232	my ($self) = @_;	2267	my ($self) = @_;
1233		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
1234	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2274	my $guard = cf::lock_acquire "map_data:$path";
1236		2275
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1238		2278
1239	$self->in_memory (cf::MAP_LOADING);
1240
1241	$self->alloc;	2279	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2280
		2281	$self->pre_load;
		2282	cf::cede_to_tick;
		2283
		2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
1243	or return;	2288	or return;
1244		2289
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1246	if delete $self->{load_original};	2291	if delete $self->{load_original};
1247		2292
1248	if (my $uniq = $path->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2294	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2297	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1253	}	2302	}
1254	}
1255		2303
1256	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1257		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1258	# now do the right thing for maps	2313	# now do the right thing for maps
1259	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2316	unless $self->difficulty;
1271	$self->activate;	2317	cf::cede_to_tick;
		2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
		2329	}
		2330
		2331	$self->post_load;
		2332
1272	}	2333	1
		2334	}
1273		2335
1274	Coro::cede;	2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
1275		2341
1276	$self->in_memory (cf::MAP_IN_MEMORY);	2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
		2348	$self
1277	}	2349	}
1278		2350
1279	sub find_sync {	2351	sub find_sync {
1280	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1281		2353
1282	cf::sync_job { cf::map::find $path, $origin }	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
1283	}	2359	}
1284		2360
1285	sub do_load_sync {	2361	sub do_load_sync {
1286	my ($map) = @_;	2362	my ($map) = @_;
1287		2363
1288	cf::sync_job { $map->load };	2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
		2369	}
		2370
		2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
		2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
		2388	while (%MAP_PREFETCH) {
		2389	for my $k (keys %MAP_PREFETCH) {
		2390	if (my $map = find $k) {
		2391	$map->load if $MAP_PREFETCH{$k};
		2392	}
		2393
		2394	delete $MAP_PREFETCH{$k};
		2395	}
		2396	}
		2397	undef $MAP_PREFETCHER;
		2398	};
		2399	$MAP_PREFETCHER->prio (6);
		2400
		2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2433	}
1289	}	2434	}
1290		2435
1291	sub save {	2436	sub save {
1292	my ($self) = @_;	2437	my ($self) = @_;
1293		2438
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2440
1296	$self->{last_save} = $cf::RUNTIME;	2441	$self->_save;
1297
1298	return unless $self->dirty;
1299
1300	my $save = $self->{path}->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1302
1303	$self->{load_path} = $save;
1304
1305	return if $self->{deny_save};
1306
1307	local $self->{last_access} = $self->last_access;#d#
1308
1309	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}
1315	}	2442	}
1316		2443
1317	sub swap_out {	2444	sub swap_out {
1318	my ($self) = @_;	2445	my ($self) = @_;
1319		2446
1320	# save first because save cedes
1321	$self->save;
1322
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1325	return if $self->players;	2451	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;
1327	return if $self->{deny_save};
1328		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
1329	$self->clear;	2462	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2463	}
1332		2464
1333	sub reset_at {	2465	sub reset_at {
1334	my ($self) = @_;	2466	my ($self) = @_;
1335		2467
1336	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1339		2470
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2473
…		…
1347	my ($self) = @_;	2478	my ($self) = @_;
1348		2479
1349	$self->reset_at <= $cf::RUNTIME	2480	$self->reset_at <= $cf::RUNTIME
1350	}	2481	}
1351		2482
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2483	sub reset {
1374	my ($self) = @_;	2484	my ($self) = @_;
1375		2485
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2487
1378	return if $self->players;	2488	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2489
1381	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
		2491
		2492	$self->state (cf::MAP_SWAPPED);
		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
1382		2501
1383	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1384		2503
		2504	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
1386		2507
1387	$self->unlink_save;	2508	$self->unlink_save;
1388	$self->destroy;	2509	$self->destroy;
1389	}	2510	}
1390		2511
1391	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1392		2513
1393	sub nuke {	2514	sub nuke {
1394	my ($self) = @_;	2515	my ($self) = @_;
1395		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
		2520	delete $cf::MAP{$self->path};
		2521
		2522	$self->unlink_save;
		2523
		2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
1399	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
1400	}	2534	}
1401		2535
1402	sub customise_for {	2536	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2537
1405	if ($map->per_player) {	2538	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
1407	}	2544	[
1408		2545	map {
1409	$map	2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
1410	}	2552	}
1411		2553
1412	sub emergency_save {	2554	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2555
1415	warn "enter emergency map save\n";	2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
1416		2558
1417	cf::sync_job {	2559	=cut
1418	warn "begin emergency map save\n";	2560
1419	$_->save for values %cf::MAP;	2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
		2570	}
		2571
		2572	=item cf::map::unique_maps
		2573
		2574	Returns an arrayref of paths of all shared maps that have
		2575	instantiated unique items. May block.
		2576
		2577	=cut
		2578
		2579	sub unique_maps() {
		2580	[
		2581	map {
		2582	utf8::decode $_;
		2583	s/\.map$//; # TODO future compatibility hack
		2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
		2590
		2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
1420	};	2618	}
1421		2619
1422	warn "end emergency map save\n";	2620	\@maps
		2621	}
		2622
		2623	=back
		2624
		2625	=head3 cf::object
		2626
		2627	=cut
		2628
		2629	package cf::object;
		2630
		2631	=over 4
		2632
		2633	=item $ob->inv_recursive
		2634
		2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
		2637
		2638	=cut
		2639
		2640	sub inv_recursive_;
		2641	sub inv_recursive_ {
		2642	map { $_, inv_recursive_ $_->inv } @_
		2643	}
		2644
		2645	sub inv_recursive {
		2646	inv_recursive_ inv $_[0]
		2647	}
		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
1423	}	2675	}
1424		2676
1425	package cf;	2677	package cf;
1426		2678
1427	=back	2679	=back
1428
1429		2680
1430	=head3 cf::object::player	2681	=head3 cf::object::player
1431		2682
1432	=over 4	2683	=over 4
1433		2684
…		…
1436	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1437	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1438	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1439		2690
1440	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1441		2706
1442	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1443	# with dialog boxes.	2708	# with dialog boxes.
1444	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1445	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1447		2712
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2714
1450	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1452	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1455	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1456	}	2740	}
1457		2741
1458	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1459		2743
1460	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
1461	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
1462		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
1463	=cut	2772	=cut
1464		2773
1465	sub cf::object::player::may {	2774	sub cf::object::player::may {
1466	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
1467		2776
1468	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
1469	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
1470	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1471	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
1472	}	2781	}
1473		2782
1474	=item $player_object->enter_link	2783	=item $player_object->enter_link
1475		2784
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2785	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2786
1478	The player should be reaosnably safe there for short amounts of time. You	2787	The player should be reasonably safe there for short amounts of time (e.g.
1479	I<MUST> call C<leave_link> as soon as possible, though.	2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
		2791
		2792	This method will never block, which is the whole reaosn for it's
		2793	existance: you can I<always> put a player onto the link map, which is the
		2794	only place to put objects that is guaranteed to exist.
		2795
		2796	A typical usage pattern is to call C<enter_link> synchronously from the
		2797	server, then start a new thread, do your blocking stuff there and then
		2798	call C<leave_link> from that thread.
1480		2799
1481	=item $player_object->leave_link ($map, $x, $y)	2800	=item $player_object->leave_link ($map, $x, $y)
1482		2801
1483	Moves the player out of the specila link map onto the given map. If the	2802	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2803	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2804	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2805	fails, to the emergency map position.
1487		2806
1488	Might block.	2807	Might block.
1489		2808
1490	=cut	2809	=cut
		2810
		2811	sub link_map {
		2812	unless ($LINK_MAP) {
		2813	$LINK_MAP = cf::map::find "{link}"
		2814	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2815	$LINK_MAP->load;
		2816	}
		2817
		2818	$LINK_MAP
		2819	}
1491		2820
1492	sub cf::object::player::enter_link {	2821	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2822	my ($self) = @_;
1494		2823
1495	$self->deactivate_recursive;	2824	$self->deactivate_recursive;
1496		2825
1497	return if $self->map == $LINK_MAP;	2826	++$self->{_link_recursion};
		2827
		2828	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2829
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2830	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2831	if $self->map && $self->map->{path} ne "{link}";
1501		2832
1502	$self->enter_map ($LINK_MAP, 20, 20);	2833	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1503	}	2834	}
1504		2835
1505	sub cf::object::player::leave_link {	2836	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2837	my ($self, $map, $x, $y) = @_;
		2838
		2839	return unless $self->contr->active;
1507		2840
1508	my $link_pos = delete $self->{_link_pos};	2841	my $link_pos = delete $self->{_link_pos};
1509		2842
1510	unless ($map) {	2843	unless ($map) {
1511	# restore original map position	2844	# restore original map position
…		…
1522	($x, $y) = (-1, -1)	2855	($x, $y) = (-1, -1)
1523	unless (defined $x) && (defined $y);	2856	unless (defined $x) && (defined $y);
1524		2857
1525	# use -1 or undef as default coordinates, not 0, 0	2858	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2859	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2860	if $x <= 0 && $y <= 0;
1528		2861
1529	$map->load;	2862	$map->load;
1530		2863
		2864	return unless $self->contr->active;
		2865
		2866	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2867	if ($self->enter_map ($map, $x, $y)) {
		2868	# entering was successful
		2869	delete $self->{_link_recursion};
		2870	# only activate afterwards, to support waiting in hooks
1531	$self->activate_recursive;	2871	$self->activate_recursive;
1532	$self->enter_map ($map, $x, $y);
1533	}
1534
1535	cf::player->attach (
1536	on_logout => sub {
1537	my ($pl) = @_;
1538
1539	# abort map switching before logout
1540	if ($pl->ob->{_link_pos}) {
1541	cf::sync_job {
1542	$pl->ob->leave_link
1543	};
1544	}
1545	},	2872	}
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2873
1549	# try to abort aborted map switching on player login :)	2874	}
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552		2875
1553	$pl->ob->enter_link;	2876	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1554	(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	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567		2877
1568	=item $player_object->goto ($path, $x, $y)	2878	Moves the player to the given map-path and coordinates by first freezing
		2879	her, loading and preparing them map, calling the provided $check callback
		2880	that has to return the map if sucecssful, and then unfreezes the player on
		2881	the new (success) or old (failed) map position. In either case, $done will
		2882	be called at the end of this process.
1569		2883
		2884	Note that $check will be called with a potentially non-loaded map, so if
		2885	it needs a loaded map it has to call C<< ->load >>.
		2886
1570	=cut	2887	=cut
		2888
		2889	our $GOTOGEN;
1571		2890
1572	sub cf::object::player::goto {	2891	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2892	my ($self, $path, $x, $y, $check, $done) = @_;
		2893
		2894	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2895	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2896	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2897	($path, $x, $y) = @$EMERGENCY_POSITION;
		2898	}
		2899
		2900	# do generation counting so two concurrent goto's will be executed in-order
		2901	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2902
1575	$self->enter_link;	2903	$self->enter_link;
1576		2904
1577	(async {	2905	(async {
1578	$path = new cf::path $path;	2906	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2907
1580	my $map = cf::map::find $path->as_string;	2908	# *tag paths override both path and x|y
		2909	if ($path =~ /^\*(.*)$/) {
		2910	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2911	my $ob = $obs[rand @obs];
		2912
		2913	# see if we actually can go there
		2914	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2915	$ob = $obs[rand @obs];
		2916	} else {
		2917	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2918	}
		2919	# else put us there anyways for now #d#
		2920
		2921	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2922	} else {
		2923	($path, $x, $y) = (undef, undef, undef);
		2924	}
		2925	}
		2926
		2927	my $map = eval {
		2928	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2929
		2930	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2931	$map = $map->customise_for ($self);
1582		2932	$map = $check->($map, $x, $y, $self) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2933	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2934	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2935	}
1587		2936
		2937	$map
		2938	};
		2939
		2940	if ($@) {
		2941	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2942	LOG llevError | logBacktrace, Carp::longmess $@;
		2943	}
		2944
		2945	if ($gen == $self->{_goto_generation}) {
		2946	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2947	$self->leave_link ($map, $x, $y);
		2948	}
		2949
		2950	$done->($self) if $done;
1589	})->prio (1);	2951	})->prio (1);
1590	}	2952	}
1591		2953
1592	=item $player_object->enter_exit ($exit_object)	2954	=item $player_object->enter_exit ($exit_object)
1593		2955
…		…
1595		2957
1596	sub parse_random_map_params {	2958	sub parse_random_map_params {
1597	my ($spec) = @_;	2959	my ($spec) = @_;
1598		2960
1599	my $rmp = { # defaults	2961	my $rmp = { # defaults
1600	xsize => 10,	2962	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2963	ysize => (cf::rndm 15, 40),
		2964	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2965	#layout => string,
1602	};	2966	};
1603		2967
1604	for (split /\n/, $spec) {	2968	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2969	my ($k, $v) = split /\s+/, $_, 2;
1606		2970
…		…
1618	# that depends on the exit object	2982	# that depends on the exit object
1619		2983
1620	my $rmp = parse_random_map_params $exit->msg;	2984	my $rmp = parse_random_map_params $exit->msg;
1621		2985
1622	if ($exit->map) {	2986	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2987	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2988	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2989	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2990	$rmp->{origin_y} = $exit->y;
		2991
		2992	$exit->map->touch;
1627	}	2993	}
1628		2994
1629	$rmp->{random_seed} ||= $exit->random_seed;	2995	$rmp->{random_seed} ||= $exit->random_seed;
1630		2996
1631	my $data = cf::to_json $rmp;	2997	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1632	my $md5 = Digest::MD5::md5_hex $data;	2998	my $md5 = Digest::MD5::md5_hex $data;
		2999	my $meta = "$RANDOMDIR/$md5.meta";
1633		3000
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3001	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	3002	aio_write $fh, 0, (length $data), $data, 0;
		3003	undef $fh;
		3004	aio_rename "$meta~", $meta;
1636		3005
		3006	my $slaying = "?random/$md5";
		3007
		3008	if ($exit->valid) {
1637	$exit->slaying ("?random/$md5");	3009	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	3010	$exit->msg (undef);
		3011	}
1639	}	3012	}
1640	}	3013	}
1641		3014
1642	sub cf::object::player::enter_exit {	3015	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	3016	my ($self, $exit) = @_;
…		…
1645	return unless $self->type == cf::PLAYER;	3018	return unless $self->type == cf::PLAYER;
1646		3019
1647	$self->enter_link;	3020	$self->enter_link;
1648		3021
1649	(async {	3022	(async {
1650	$self->deactivate_recursive; # just to be sure	3023	$Coro::current->{desc} = "enter_exit";
		3024
1651	unless (eval {	3025	unless (eval {
		3026	$self->deactivate_recursive; # just to be sure
		3027
		3028	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3029	my $x = $exit->stats->hp;
		3030	my $y = $exit->stats->sp;
		3031
		3032	# special map handling
		3033	my $slaying = $exit->slaying;
		3034
		3035	# special map handling
		3036	if ($slaying eq "/!") {
		3037	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3038
1652	prepare_random_map $exit	3039	prepare_random_map $exit
		3040	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3041
1653	if $exit->slaying eq "/!";	3042	$map = $exit->slaying;
1654		3043
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3044	} elsif ($slaying eq '!up') {
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3045	$map = $exit->map->tile_path (cf::TILE_UP);
		3046	$x = $exit->x;
		3047	$y = $exit->y;
1657		3048
		3049	} elsif ($slaying eq '!down') {
		3050	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3051	$x = $exit->x;
		3052	$y = $exit->y;
		3053	}
		3054
		3055	$self->goto ($map, $x, $y);
		3056
		3057	# if exit is damned, update players death & WoR home-position
		3058	$self->contr->savebed ($map, $x, $y)
		3059	if $exit->flag (cf::FLAG_DAMNED);
		3060
1658	1;	3061	1
1659	}) {	3062	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	3063	$self->message ("Something went wrong deep within the deliantra server. "
1661	. "I'll try to bring you back to the map you were before. "	3064	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	3065	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	3066	cf::NDI_UNIQUE | cf::NDI_RED);
1664		3067
1665	warn "ERROR in enter_exit: $@";	3068	error "ERROR in enter_exit: $@";
1666	$self->leave_link;	3069	$self->leave_link;
1667	}	3070	}
1668	})->prio (1);	3071	})->prio (1);
1669	}	3072	}
1670		3073
1671	=head3 cf::client	3074	=head3 cf::client
1672		3075
1673	=over 4	3076	=over 4
1674		3077
1675	=item $client->send_drawinfo ($text, $flags)	3078	=item $client->send_big_packet ($pkt)
1676		3079
1677	Sends a drawinfo packet to the client. Circumvents output buffering so	3080	Like C<send_packet>, but tries to compress large packets, and fragments
1678	should not be used under normal circumstances.	3081	them as required.
1679		3082
1680	=cut	3083	=cut
1681		3084
		3085	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3086
		3087	sub cf::client::send_big_packet {
		3088	my ($self, $pkt) = @_;
		3089
		3090	# try lzf for large packets
		3091	$pkt = "lzf " . Compress::LZF::compress $pkt
		3092	if 1024 <= length $pkt and $self->{can_lzf};
		3093
		3094	# split very large packets
		3095	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3096	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3097	$pkt = "frag";
		3098	}
		3099
		3100	$self->send_packet ($pkt);
		3101	}
		3102
		3103	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3104
		3105	Send a msg packet to the client, formatting the msg for the client if
		3106	necessary. C<$type> should be a string identifying the type of the
		3107	message, with C<log> being the default. If C<$color> is negative, suppress
		3108	the message unless the client supports the msg packet.
		3109
		3110	=cut
		3111
		3112	# non-persistent channels (usually the info channel)
		3113	our %CHANNEL = (
		3114	"c/motd" => {
		3115	id => "infobox",
		3116	title => "MOTD",
		3117	reply => undef,
		3118	tooltip => "The message of the day",
		3119	},
		3120	"c/identify" => {
		3121	id => "infobox",
		3122	title => "Identify",
		3123	reply => undef,
		3124	tooltip => "Items recently identified",
		3125	},
		3126	"c/examine" => {
		3127	id => "infobox",
		3128	title => "Examine",
		3129	reply => undef,
		3130	tooltip => "Signs and other items you examined",
		3131	},
		3132	"c/shopinfo" => {
		3133	id => "infobox",
		3134	title => "Shop Info",
		3135	reply => undef,
		3136	tooltip => "What your bargaining skill tells you about the shop",
		3137	},
		3138	"c/book" => {
		3139	id => "infobox",
		3140	title => "Book",
		3141	reply => undef,
		3142	tooltip => "The contents of a note or book",
		3143	},
		3144	"c/lookat" => {
		3145	id => "infobox",
		3146	title => "Look",
		3147	reply => undef,
		3148	tooltip => "What you saw there",
		3149	},
		3150	"c/who" => {
		3151	id => "infobox",
		3152	title => "Players",
		3153	reply => undef,
		3154	tooltip => "Shows players who are currently online",
		3155	},
		3156	"c/body" => {
		3157	id => "infobox",
		3158	title => "Body Parts",
		3159	reply => undef,
		3160	tooltip => "Shows which body parts you posess and are available",
		3161	},
		3162	"c/statistics" => {
		3163	id => "infobox",
		3164	title => "Statistics",
		3165	reply => undef,
		3166	tooltip => "Shows your primary statistics",
		3167	},
		3168	"c/skills" => {
		3169	id => "infobox",
		3170	title => "Skills",
		3171	reply => undef,
		3172	tooltip => "Shows your experience per skill and item power",
		3173	},
		3174	"c/shopitems" => {
		3175	id => "infobox",
		3176	title => "Shop Items",
		3177	reply => undef,
		3178	tooltip => "Shows the items currently for sale in this shop",
		3179	},
		3180	"c/resistances" => {
		3181	id => "infobox",
		3182	title => "Resistances",
		3183	reply => undef,
		3184	tooltip => "Shows your resistances",
		3185	},
		3186	"c/pets" => {
		3187	id => "infobox",
		3188	title => "Pets",
		3189	reply => undef,
		3190	tooltip => "Shows information abotu your pets/a specific pet",
		3191	},
		3192	"c/perceiveself" => {
		3193	id => "infobox",
		3194	title => "Perceive Self",
		3195	reply => undef,
		3196	tooltip => "You gained detailed knowledge about yourself",
		3197	},
		3198	"c/uptime" => {
		3199	id => "infobox",
		3200	title => "Uptime",
		3201	reply => undef,
		3202	tooltip => "How long the server has been running since last restart",
		3203	},
		3204	"c/mapinfo" => {
		3205	id => "infobox",
		3206	title => "Map Info",
		3207	reply => undef,
		3208	tooltip => "Information related to the maps",
		3209	},
		3210	"c/party" => {
		3211	id => "party",
		3212	title => "Party",
		3213	reply => "gsay ",
		3214	tooltip => "Messages and chat related to your party",
		3215	},
		3216	"c/death" => {
		3217	id => "death",
		3218	title => "Death",
		3219	reply => undef,
		3220	tooltip => "Reason for and more info about your most recent death",
		3221	},
		3222	"c/fatal" => {
		3223	id => "fatal",
		3224	title => "Fatal Error",
		3225	reply => undef,
		3226	tooltip => "Reason for the server disconnect",
		3227	},
		3228	"c/say" => $SAY_CHANNEL,
		3229	"c/chat" => $CHAT_CHANNEL,
		3230	);
		3231
1682	sub cf::client::send_drawinfo {	3232	sub cf::client::send_msg {
		3233	my ($self, $channel, $msg, $color, @extra) = @_;
		3234
		3235	$msg = $self->pl->expand_cfpod ($msg)
		3236	unless $color & cf::NDI_VERBATIM;
		3237
		3238	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3239
		3240	# check predefined channels, for the benefit of C
		3241	if ($CHANNEL{$channel}) {
		3242	$channel = $CHANNEL{$channel};
		3243
		3244	$self->ext_msg (channel_info => $channel);
		3245	$channel = $channel->{id};
		3246
		3247	} elsif (ref $channel) {
		3248	# send meta info to client, if not yet sent
		3249	unless (exists $self->{channel}{$channel->{id}}) {
		3250	$self->{channel}{$channel->{id}} = $channel;
		3251	$self->ext_msg (channel_info => $channel);
		3252	}
		3253
		3254	$channel = $channel->{id};
		3255	}
		3256
		3257	return unless @extra || length $msg;
		3258
		3259	# default colour, mask it out
		3260	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3261	if $color & cf::NDI_DEF;
		3262
		3263	my $pkt = "msg "
		3264	. $self->{json_coder}->encode (
		3265	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3266	);
		3267
		3268	$self->send_big_packet ($pkt);
		3269	}
		3270
		3271	=item $client->ext_msg ($type, @msg)
		3272
		3273	Sends an ext event to the client.
		3274
		3275	=cut
		3276
		3277	sub cf::client::ext_msg($$@) {
1683	my ($self, $text, $flags) = @_;	3278	my ($self, $type, @msg) = @_;
1684		3279
1685	utf8::encode $text;	3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1687	}	3281	}
1688
1689		3282
1690	=item $success = $client->query ($flags, "text", \&cb)	3283	=item $success = $client->query ($flags, "text", \&cb)
1691		3284
1692	Queues a query to the client, calling the given callback with	3285	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3286	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3287	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		3288
1696	Queries can fail, so check the return code. Or don't, as queries will become	3289	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	3290	become reliable at some point in the future.
1698		3291
1699	=cut	3292	=cut
1700		3293
1701	sub cf::client::query {	3294	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	3295	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	3303	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3304	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		3305
1713	$self->send_packet ($self->{query_queue}[0][0])	3306	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	3307	if @{ $self->{query_queue} } == 1;
		3308
		3309	1
		3310	}
		3311
		3312	=item $client->update_command_faces
		3313
		3314	=cut
		3315
		3316	our %COMMAND_FACE;
		3317
		3318	sub cf::client::update_command_faces {
		3319	my ($self) = @_;
		3320
		3321	my @faces = grep $_,
		3322	$COMMAND_FACE{preferred},
		3323	$COMMAND_FACE{standard},
		3324	$COMMAND_FACE{skill},
		3325	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3326	$COMMAND_FACE{emote},
		3327	;
		3328
		3329	$self->send_face ($_)
		3330	for @faces;
		3331	$self->flush_fx;
		3332
		3333	$self->ext_msg (command_list => @faces);
		3334	}
		3335
		3336	=item cf::client::set_command_face $type, $commands
		3337
		3338	=cut
		3339
		3340	sub cf::client::set_command_face {
		3341	my ($type, $list) = @_;
		3342
		3343	my $idx = &cf::face::set ( #d# ugly forward reference
		3344	"command_list/$type" => cf::FT_RSRC,
		3345	JSON::XS->new->utf8->encode ([ sort @$list ])
		3346	);
		3347
		3348	$COMMAND_FACE{$type} = $idx;
1715	}	3349	}
1716		3350
1717	cf::client->attach (	3351	cf::client->attach (
		3352	on_connect => sub {
		3353	my ($ns) = @_;
		3354
		3355	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3356	},
1718	on_reply => sub {	3357	on_reply => sub {
1719	my ($ns, $msg) = @_;	3358	my ($ns, $msg) = @_;
1720		3359
1721	# this weird shuffling is so that direct followup queries	3360	# this weird shuffling is so that direct followup queries
1722	# get handled first	3361	# get handled first
1723	my $queue = delete $ns->{query_queue}	3362	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	3363	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		3364
1726	(shift @$queue)->[1]->($msg);	3365	(shift @$queue)->[1]->($msg);
		3366	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		3367
1728	push @{ $ns->{query_queue} }, @$queue;	3368	push @{ $ns->{query_queue} }, @$queue;
1729		3369
1730	if (@{ $ns->{query_queue} } == @$queue) {	3370	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	3371	if (@$queue) {
…		…
1733	} else {	3373	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3374	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	3375	}
1736	}	3376	}
1737	},	3377	},
		3378	on_exticmd => sub {
		3379	my ($ns, $buf) = @_;
		3380
		3381	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3382
		3383	if (ref $msg) {
		3384	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3385
		3386	if (my $cb = $EXTIACMD{$type}) {
		3387	$cb->(
		3388	$ns,
		3389	sub {
		3390	$ns->ext_msg ("reply-$reply", @_)
		3391	if $reply;
		3392	},
		3393	@payload
		3394	);
		3395	} else {
		3396	my @reply;
		3397
		3398	if (my $cb = $EXTICMD{$type}) {
		3399	@reply = $cb->($ns, @payload);
		3400	}
		3401
		3402	$ns->ext_msg ("reply-$reply", @reply)
		3403	if $reply;
		3404	}
		3405	} else {
		3406	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3407	}
		3408
		3409	cf::override;
		3410	},
1738	);	3411	);
1739		3412
1740	=item $client->async (\&cb)	3413	=item $client->async (\&cb)
1741		3414
1742	Create a new coroutine, running the specified callback. The coroutine will	3415	Create a new coroutine, running the specified callback. The coroutine will
…		…
1758		3431
1759	$coro	3432	$coro
1760	}	3433	}
1761		3434
1762	cf::client->attach (	3435	cf::client->attach (
1763	on_destroy => sub {	3436	on_client_destroy => sub {
1764	my ($ns) = @_;	3437	my ($ns) = @_;
1765		3438
1766	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3439	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1767	},	3440	},
1768	);	3441	);
…		…
1783	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
1785		3458
1786	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
1787		3460
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3461	$safe->permit_only (Opcode::opset qw(
		3462	:base_core :base_mem :base_orig :base_math :base_loop
		3463	grepstart grepwhile mapstart mapwhile
		3464	sort time
		3465	));
1789		3466
1790	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
1791		3468
1792	=pod	3469	=pod
1793		3470
1794	The following fucntions and emthods are available within a safe environment:	3471	The following functions and methods are available within a safe environment:
1795		3472
1796	cf::object contr pay_amount pay_player map	3473	cf::object
		3474	contr pay_amount pay_player map x y force_find force_add destroy
		3475	insert remove name archname title slaying race decrease split
		3476	value
		3477
1797	cf::object::player player	3478	cf::object::player
1798	cf::player peaceful	3479	player
1799	cf::map trigger	3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
1800		3486
1801	=cut	3487	=cut
1802		3488
1803	for (	3489	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3490	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3491	insert remove inv nrof name archname title slaying race
		3492	decrease split destroy change_exp value msg lore send_msg)],
1805	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
1807	["cf::map" => qw(trigger)],	3495	["cf::map" => qw(trigger)],
1808	) {	3496	) {
1809	no strict 'refs';
1810	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
1811	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1812	for @funs;	3499	for @funs;
1813	}	3500	}
1814		3501
…		…
1829		3516
1830	my $qcode = $code;	3517	my $qcode = $code;
1831	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1832	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
1833		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
1834	local $_;	3524	local $_;
1835	local @safe::cf::_safe_eval_args = values %vars;
1836		3525
1837	my $eval =	3526	my $eval =
1838	"do {\n"	3527	"do {\n"
1839	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1840	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
1841	. $code	3530	. $code
1842	. "\n}"	3531	. "\n}"
1843	;	3532	;
1844		3533
		3534	if ($CFG{safe_eval}) {
1845	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
1846	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1847	sub_generation_inc;	3538	sub_generation_inc;
		3539	} else {
		3540	local @cf::_safe_eval_args = values %vars;
		3541	@res = wantarray ? eval eval : scalar eval $eval;
		3542	}
1848		3543
1849	if ($@) {	3544	if ($@) {
1850	warn "$@";	3545	warn "$@",
1851	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
1852	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
1853	}	3548	}
1854		3549
1855	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
1856	}	3551	}
1857		3552
…		…
1871	=cut	3566	=cut
1872		3567
1873	sub register_script_function {	3568	sub register_script_function {
1874	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
1875		3570
1876	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
1877	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
1878	}	3573	}
1879		3574
1880	=back	3575	=back
1881		3576
1882	=cut	3577	=cut
1883		3578
1884	#############################################################################	3579	#############################################################################
1885		3580	# the server's init and main functions
1886	=head2 EXTENSION DATABASE SUPPORT
1887
1888	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which
1890	excludes objects.
1891
1892	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.
1894
1895	=over 4
1896
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key
1904
1905	Returns a single value from the database
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928		3581
1929	{	3582	{
1930	my $path = cf::localdir . "/database.pst";	3583	package cf::face;
1931		3584
1932	sub db_load() {	3585	our %HASH; # hash => idx
1933	$DB = stat $path ? Storable::retrieve $path : { };	3586	our @DATA; # dynamically-created facedata, only faceste 0 used
1934	}	3587	our @FOFS; # file offset, if > 0
		3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
1935		3591
1936	my $pid;	3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
1937		3595
1938	sub db_save() {	3596	my $idx = cf::face::find $name;
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947		3597
1948	my $dirty;	3598	if ($idx) {
1949		3599	delete $HASH{cf::face::get_csum $idx};
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});
1958
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {
1965	@_ >= 2
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969
1970	sub db_put($$;$) {
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {	3600	} else {
1974	$DB->{$_[0]} = $_[1];	3601	$idx = cf::face::alloc $name;
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3602	}
		3603
		3604	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3605
		3606	cf::face::set_type $idx, $type;
		3607	cf::face::set_csum $idx, 0, $hash;
		3608
		3609	# we need to destroy the SV itself, not just modify it, as a running ix
		3610	# might hold a reference to it: "delete" achieves that.
		3611	delete $FOFS[0][$idx];
		3612	delete $DATA[0][$idx];
		3613	$DATA[0][$idx] = $data;
		3614	$SIZE[0][$idx] = length $data;
		3615	delete $META[$idx];
		3616	$HASH{$hash} = $idx;#d#
		3617
		3618	$idx
		3619	}
		3620
		3621	sub _get_data($$$) {
		3622	my ($idx, $set, $cb) = @_;
		3623
		3624	if (defined $DATA[$set][$idx]) {
		3625	$cb->($DATA[$set][$idx]);
		3626	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3627	my $size = $SIZE[$set][$idx];
		3628	my $buf;
		3629	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3630	if ($_[0] == $size) {
		3631	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3632	$cb->($buf);
		3633	} else {
		3634	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3635	}
		3636	};
		3637	} else {
		3638	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3639	}
		3640	}
		3641
		3642	# rather ineffient
		3643	sub cf::face::get_data($;$) {
		3644	my ($idx, $set) = @_;
		3645
		3646	_get_data $idx, $set, Coro::rouse_cb;
		3647	Coro::rouse_wait
		3648	}
		3649
		3650	sub cf::face::ix {
		3651	my ($ns, $set, $idx, $pri) = @_;
		3652
		3653	_get_data $idx, $set, sub {
		3654	$ns->ix_send ($idx, $pri, $_[0]);
		3655	};
		3656	}
		3657	}
		3658
		3659	sub load_facedata($) {
		3660	my ($path) = @_;
		3661
		3662	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3663
		3664	trace "loading facedata from $path\n";
		3665
		3666	my $facedata = decode_storable load_file "$path/faceinfo";
		3667
		3668	$facedata->{version} == 2
		3669	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3670
		3671	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3672	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3673
		3674	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3675
		3676	# BEGIN ATOMIC
		3677	# from here on, everything must be atomic - no thread switch allowed
		3678	my $t1 = EV::time;
		3679
		3680	{
		3681	my $faces = $facedata->{faceinfo};
		3682
		3683	for my $face (sort keys %$faces) {
		3684	my $info = $faces->{$face};
		3685	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3686
		3687	cf::face::set_visibility $idx, $info->{visibility};
		3688	cf::face::set_magicmap $idx, $info->{magicmap};
		3689	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3690	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3691	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3692	$cf::face::HASH{$info->{hash64}} = $idx;
		3693	delete $cf::face::META[$idx];
		3694	}
		3695
		3696	while (my ($face, $info) = each %$faces) {
		3697	next unless $info->{smooth};
		3698
		3699	my $idx = cf::face::find $face
		3700	or next;
		3701
		3702	if (my $smooth = cf::face::find $info->{smooth}) {
		3703	cf::face::set_smooth $idx, $smooth;
		3704	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3705	} else {
		3706	error "smooth face '$info->{smooth}' not found for face '$face'";
		3707	}
		3708	}
		3709	}
		3710
		3711	{
		3712	my $anims = $facedata->{animinfo};
		3713
		3714	while (my ($anim, $info) = each %$anims) {
		3715	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3716	}
		3717
		3718	cf::anim::invalidate_all; # d'oh
		3719	}
		3720
		3721	{
		3722	my $res = $facedata->{resource};
		3723
		3724	while (my ($name, $info) = each %$res) {
		3725	if (defined (my $type = $info->{type})) {
		3726	# TODO: different hash - must free and use new index, or cache ixface data queue
		3727	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3728
		3729	cf::face::set_type $idx, $type;
		3730	cf::face::set_csum $idx, 0, $info->{hash};
		3731	$cf::face::SIZE[0][$idx] = $info->{size};
		3732	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3733	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3734	$cf::face::HASH{$info->{hash}} = $idx;
		3735	} else {
		3736	# $RESOURCE{$name} = $info; # unused
		3737	}
		3738	}
		3739	}
		3740
		3741	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3742
		3743	# HACK to clear player env face cache, we need some signal framework
		3744	# for this (global event?)
		3745	%ext::player_env::MUSIC_FACE_CACHE = ();
		3746
		3747	# END ATOMIC
		3748
		3749	cf::debug "facedata atomic update time ", EV::time - $t1;
		3750
		3751	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3752
		3753	aio_close $fh if $fh; # close old facedata
		3754
		3755	1
		3756	}
		3757
		3758	register_exticmd fx_want => sub {
		3759	my ($ns, $want) = @_;
		3760
		3761	while (my ($k, $v) = each %$want) {
		3762	$ns->fx_want ($k, $v);
		3763	}
		3764	};
		3765
		3766	sub load_resource_file($) {
		3767	my $guard = lock_acquire "load_resource_file";
		3768
		3769	my $status = load_resource_file_ $_[0];
		3770	get_slot 0.1, 100;
		3771	cf::arch::commit_load;
		3772
		3773	$status
		3774	}
		3775
		3776	sub reload_exp_table {
		3777	_reload_exp_table;
		3778
		3779	cf::face::set
		3780	"res/exp_table" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
1984	);	3783	);
1985	}	3784	}
1986		3785
1987	#############################################################################	3786	sub reload_materials {
1988	# the server's main()	3787	_reload_materials;
		3788	}
1989		3789
1990	sub cfg_load {	3790	sub reload_regions {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3791	# HACK to clear player env face cache, we need some signal framework
1992	or return;	3792	# for this (global event?)
		3793	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3794
1994	local $/;	3795	load_resource_file "$MAPDIR/regions"
1995	*CFG = YAML::Syck::Load <$fh>;	3796	or die "unable to load regions file\n";
1996		3797
		3798	for (cf::region::list) {
		3799	$_->{match} = qr/$_->{match}/
		3800	if exists $_->{match};
		3801	}
		3802	}
		3803
		3804	sub reload_facedata {
		3805	load_facedata $DATADIR
		3806	or die "unable to load facedata\n";
		3807	}
		3808
		3809	sub reload_archetypes {
		3810	load_resource_file "$DATADIR/archetypes"
		3811	or die "unable to load archetypes\n";
		3812
		3813	cf::face::set
		3814	"res/skill_info" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3817	);
		3818
		3819	cf::face::set
		3820	"res/spell_paths" => FT_RSRC,
		3821	JSON::XS->new->utf8->canonical->encode (
		3822	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3823	);
		3824
		3825	# command completion
		3826	my @commands;
		3827
		3828	for (0..cf::arch::skillvec_size - 1) {
		3829	my $skill = cf::arch::skillvec $_;
		3830	my $name = $skill->name;
		3831	my $flags = cf::skill_flags $skill->subtype;
		3832
		3833	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3834	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3835	}
		3836
		3837	cf::client::set_command_face skill => \@commands;
		3838	}
		3839
		3840	sub reload_treasures {
		3841	load_resource_file "$DATADIR/treasures"
		3842	or die "unable to load treasurelists\n";
		3843	}
		3844
		3845	sub reload_sound {
		3846	trace "loading sound config from $DATADIR/sound\n";
		3847
		3848	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3849
		3850	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3851	my $sound = $soundconf->{compat}[$_]
		3852	or next;
		3853
		3854	my $face = cf::face::find "sound/$sound->[1]";
		3855	cf::sound::set $sound->[0] => $face;
		3856	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3857	}
		3858
		3859	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3860	my $face = cf::face::find "sound/$v";
		3861	cf::sound::set $k => $face;
		3862	}
		3863	}
		3864
		3865	sub reload_resources {
		3866	trace "reloading resource files...\n";
		3867
		3868	reload_materials;
		3869	reload_facedata;
		3870	reload_exp_table;
		3871	reload_sound;
		3872	reload_archetypes;
		3873	reload_regions;
		3874	reload_treasures;
		3875
		3876	trace "finished reloading resource files\n";
		3877	}
		3878
		3879	sub reload_config {
		3880	trace "reloading config file...\n";
		3881
		3882	my $config = load_file "$CONFDIR/config";
		3883	utf8::decode $config;
		3884	*CFG = decode_yaml $config;
		3885
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3886	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1998		3887
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3888	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3889	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3890
2002	if (exists $CFG{mlockall}) {	3891	if (exists $CFG{mlockall}) {
2003	eval {	3892	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3893	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3894	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3895	};
2007	warn $@ if $@;	3896	warn $@ if $@;
2008	}	3897	}
2009	}	3898	}
2010		3899
		3900	sub pidfile() {
		3901	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3902	or die "$PIDFILE: $!";
		3903	flock $fh, &Fcntl::LOCK_EX
		3904	or die "$PIDFILE: flock: $!";
		3905	$fh
		3906	}
		3907
		3908	# make sure only one server instance is running at any one time
		3909	sub atomic {
		3910	my $fh = pidfile;
		3911
		3912	my $pid = <$fh>;
		3913	kill 9, $pid if $pid > 0;
		3914
		3915	seek $fh, 0, 0;
		3916	print $fh $$;
		3917	}
		3918
		3919	sub main_loop {
		3920	trace "EV::run starting\n";
		3921	if (1) {
		3922	EV::run;
		3923	}
		3924	trace "EV::run returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
		3927
2011	sub main {	3928	sub main {
		3929	cf::init_globals; # initialise logging
		3930
		3931	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3932	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3933	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3934	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3935
		3936	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3937
2012	# we must not ever block the main coroutine	3938	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3939	$Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3940	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2015	async { Event::one_event };	3941	(async {
		3942	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3943	EV::run EV::RUN_ONCE;
		3944	})->prio (Coro::PRIO_MAX);
2016	};	3945	};
2017		3946
2018	cfg_load;	3947	evthread_start IO::AIO::poll_fileno;
2019	db_load;	3948
		3949	cf::sync_job {
		3950	cf::incloader::init ();
		3951
		3952	db_init;
		3953
		3954	cf::init_anim;
		3955	cf::init_attackmess;
		3956	cf::init_dynamic;
		3957
		3958	cf::load_settings;
		3959
		3960	reload_resources;
		3961	reload_config;
		3962
		3963	cf::init_uuid;
		3964	cf::init_signals;
		3965	cf::init_skills;
		3966
		3967	cf::init_beforeplay;
		3968
		3969	atomic;
		3970
2020	load_extensions;	3971	load_extensions;
2021	Event::loop;	3972
		3973	utime time, time, $RUNTIMEFILE;
		3974
		3975	# no (long-running) fork's whatsoever before this point(!)
		3976	use POSIX ();
		3977	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3978
		3979	cf::_post_init 0;
		3980	};
		3981
		3982	cf::object::thawer::errors_are_fatal 0;
		3983	info "parse errors in files are no longer fatal from this point on.\n";
		3984
		3985	AE::postpone {
		3986	undef &main; # free gobs of memory :)
		3987	};
		3988
		3989	goto &main_loop;
2022	}	3990	}
2023		3991
2024	#############################################################################	3992	#############################################################################
2025	# initialisation	3993	# initialisation and cleanup
2026		3994
		3995	# install some emergency cleanup handlers
		3996	BEGIN {
		3997	our %SIGWATCHER = ();
		3998	for my $signal (qw(INT HUP TERM)) {
		3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		4000	cf::cleanup "SIG$signal";
		4001	};
		4002	}
		4003	}
		4004
		4005	sub write_runtime_sync {
		4006	my $t0 = AE::time;
		4007
		4008	# first touch the runtime file to show we are still running:
		4009	# the fsync below can take a very very long time.
		4010
		4011	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4012
		4013	my $guard = cf::lock_acquire "write_runtime";
		4014
		4015	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4016	or return;
		4017
		4018	my $value = $cf::RUNTIME + 90 + 10;
		4019	# 10 is the runtime save interval, for a monotonic clock
		4020	# 60 allows for the watchdog to kill the server.
		4021
		4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4023	and return;
		4024
		4025	# always fsync - this file is important
		4026	aio_fsync $fh
		4027	and return;
		4028
		4029	# touch it again to show we are up-to-date
		4030	aio_utime $fh, undef, undef;
		4031
		4032	close $fh
		4033	or return;
		4034
		4035	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4036	and return;
		4037
		4038	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4039
		4040	1
		4041	}
		4042
		4043	our $uuid_lock;
		4044	our $uuid_skip;
		4045
		4046	sub write_uuid_sync($) {
		4047	$uuid_skip ||= $_[0];
		4048
		4049	return if $uuid_lock;
		4050	local $uuid_lock = 1;
		4051
		4052	my $uuid = "$LOCALDIR/uuid";
		4053
		4054	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4055	or return;
		4056
		4057	my $value = uuid_seq uuid_cur;
		4058
		4059	unless ($value) {
		4060	info "cowardly refusing to write zero uuid value!\n";
		4061	return;
		4062	}
		4063
		4064	my $value = uuid_str $value + $uuid_skip;
		4065	$uuid_skip = 0;
		4066
		4067	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4068	and return;
		4069
		4070	# always fsync - this file is important
		4071	aio_fsync $fh
		4072	and return;
		4073
		4074	close $fh
		4075	or return;
		4076
		4077	aio_rename "$uuid~", $uuid
		4078	and return;
		4079
		4080	trace "uuid file written ($value).\n";
		4081
		4082	1
		4083
		4084	}
		4085
		4086	sub write_uuid($$) {
		4087	my ($skip, $sync) = @_;
		4088
		4089	$sync ? write_uuid_sync $skip
		4090	: async { write_uuid_sync $skip };
		4091	}
		4092
		4093	sub emergency_save() {
		4094	my $freeze_guard = cf::freeze_mainloop;
		4095
		4096	info "emergency_perl_save: enter\n";
		4097
		4098	# this is a trade-off: we want to be very quick here, so
		4099	# save all maps without fsync, and later call a global sync
		4100	# (which in turn might be very very slow)
		4101	local $USE_FSYNC = 0;
		4102
		4103	cf::sync_job {
		4104	cf::write_runtime_sync; # external watchdog should not bark
		4105
		4106	# use a peculiar iteration method to avoid tripping on perl
		4107	# refcount bugs in for. also avoids problems with players
		4108	# and maps saved/destroyed asynchronously.
		4109	info "emergency_perl_save: begin player save\n";
		4110	for my $login (keys %cf::PLAYER) {
		4111	my $pl = $cf::PLAYER{$login} or next;
		4112	$pl->valid or next;
		4113	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4114	$pl->save;
		4115	}
		4116	info "emergency_perl_save: end player save\n";
		4117
		4118	cf::write_runtime_sync; # external watchdog should not bark
		4119
		4120	info "emergency_perl_save: begin map save\n";
		4121	for my $path (keys %cf::MAP) {
		4122	my $map = $cf::MAP{$path} or next;
		4123	$map->valid or next;
		4124	$map->save;
		4125	}
		4126	info "emergency_perl_save: end map save\n";
		4127
		4128	cf::write_runtime_sync; # external watchdog should not bark
		4129
		4130	info "emergency_perl_save: begin database checkpoint\n";
		4131	BDB::db_env_txn_checkpoint $DB_ENV;
		4132	info "emergency_perl_save: end database checkpoint\n";
		4133
		4134	info "emergency_perl_save: begin write uuid\n";
		4135	write_uuid_sync 1;
		4136	info "emergency_perl_save: end write uuid\n";
		4137
		4138	cf::write_runtime_sync; # external watchdog should not bark
		4139
		4140	trace "emergency_perl_save: syncing database to disk";
		4141	BDB::db_env_txn_checkpoint $DB_ENV;
		4142
		4143	info "emergency_perl_save: starting sync\n";
		4144	IO::AIO::aio_sync sub {
		4145	info "emergency_perl_save: finished sync\n";
		4146	};
		4147
		4148	cf::write_runtime_sync; # external watchdog should not bark
		4149
		4150	trace "emergency_perl_save: flushing outstanding aio requests";
		4151	while (IO::AIO::nreqs || BDB::nreqs) {
		4152	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4153	}
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
		4156	};
		4157
		4158	info "emergency_perl_save: leave\n";
		4159	}
		4160
		4161	sub post_cleanup {
		4162	my ($make_core) = @_;
		4163
		4164	IO::AIO::flush;
		4165
		4166	error Carp::longmess "post_cleanup backtrace"
		4167	if $make_core;
		4168
		4169	my $fh = pidfile;
		4170	unlink $PIDFILE if <$fh> == $$;
		4171	}
		4172
		4173	# a safer delete_package, copied from Symbol
		4174	sub clear_package($) {
		4175	my $pkg = shift;
		4176
		4177	# expand to full symbol table name if needed
		4178	unless ($pkg =~ /^main::.*::$/) {
		4179	$pkg = "main$pkg" if $pkg =~ /^::/;
		4180	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4181	$pkg .= '::' unless $pkg =~ /::$/;
		4182	}
		4183
		4184	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4185	my $stem_symtab = *{$stem}{HASH};
		4186
		4187	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4188	or return;
		4189
		4190	# clear all symbols
		4191	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4192	for my $name (keys %$leaf_symtab) {
		4193	_gv_clear *{"$pkg$name"};
		4194	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4195	}
		4196	}
		4197
2027	sub reload() {	4198	sub do_reload_perl() {
2028	# can/must only be called in main	4199	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	4200	unless (in_main) {
2030	warn "can only reload from main coroutine\n";	4201	error "can only reload from main coroutine";
2031	return;	4202	return;
2032	}	4203	}
2033		4204
2034	warn "reloading...";	4205	return if $RELOAD++;
2035		4206
2036	my $guard = freeze_mainloop;	4207	my $t1 = AE::time;
		4208
		4209	while ($RELOAD) {
		4210	cf::get_slot 0.1, -1, "reload_perl";
		4211	info "perl_reload: reloading...";
		4212
		4213	trace "perl_reload: entering sync_job";
		4214
		4215	cf::sync_job {
2037	cf::emergency_save;	4216	#cf::emergency_save;
2038		4217
2039	eval {	4218	trace "perl_reload: cancelling all extension coros";
2040	# if anything goes wrong in here, we should simply crash as we already saved
2041
2042	# cancel all watchers
2043	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}
2046
2047	# cancel all extension coros
2048	$_->cancel for values %EXT_CORO;	4219	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	4220	%EXT_CORO = ();
2050		4221
2051	# unload all extensions	4222	trace "perl_reload: removing commands";
2052	for (@exts) {	4223	%COMMAND = ();
2053	warn "unloading <$_>";
2054	unload_extension $_;
2055	}
2056		4224
2057	# unload all modules loaded from $LIBDIR	4225	trace "perl_reload: removing ext/exti commands";
2058	while (my ($k, $v) = each %INC) {	4226	%EXTCMD = ();
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4227	%EXTICMD = ();
2060		4228
2061	warn "removing <$k>";	4229	trace "perl_reload: unloading/nuking all extensions";
2062	delete $INC{$k};	4230	for my $pkg (@EXTS) {
		4231	trace "... unloading $pkg";
2063		4232
2064	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;
2066
2067	if (my $cb = $k->can ("unload_module")) {	4233	if (my $cb = $pkg->can ("unload")) {
		4234	eval {
2068	$cb->();	4235	$cb->($pkg);
		4236	1
		4237	} or error "$pkg unloaded, but with errors: $@";
		4238	}
		4239
		4240	trace "... clearing $pkg";
		4241	clear_package $pkg;
2069	}	4242	}
2070		4243
2071	Symbol::delete_package $k;	4244	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4245	while (my ($k, $v) = each %INC) {
		4246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4247
		4248	trace "... unloading $k";
		4249	delete $INC{$k};
		4250
		4251	$k =~ s/\.pm$//;
		4252	$k =~ s/\//::/g;
		4253
		4254	if (my $cb = $k->can ("unload_module")) {
		4255	$cb->();
		4256	}
		4257
		4258	clear_package $k;
2072	}	4259	}
2073		4260
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	4261	trace "perl_reload: getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	4262	clear_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4263	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		4264
2082	# remove register_script_function callbacks	4265	trace "perl_reload: unloading cf.pm \"a bit\"";
2083	# TODO
2084
2085	# unload cf.pm "a bit"
2086	delete $INC{"cf.pm"};	4266	delete $INC{"cf.pm"};
		4267	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2087		4268
2088	# don't, removes xs symbols, too,	4269	# don't, removes xs symbols, too,
2089	# and global variables created in xs	4270	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	4271	#clear_package __PACKAGE__;
2091		4272
2092	# reload cf.pm	4273	info "perl_reload: unload completed, starting to reload now";
2093	warn "reloading cf.pm";	4274
		4275	trace "perl_reload: reloading cf.pm";
2094	require cf;	4276	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4277	cf::_connect_to_perl_1;
2096		4278
2097	# load config and database again	4279	trace "perl_reload: loading config and database again";
2098	cf::cfg_load;	4280	cf::reload_config;
2099	cf::db_load;
2100		4281
2101	# load extensions	4282	trace "perl_reload: loading extensions";
2102	warn "load extensions";
2103	cf::load_extensions;	4283	cf::load_extensions;
2104		4284
2105	# reattach attachments to objects	4285	if ($REATTACH_ON_RELOAD) {
2106	warn "reattach";	4286	trace "perl_reload: reattaching attachments to objects/players";
2107	_global_reattach;	4287	_global_reattach; # objects, sockets
		4288	trace "perl_reload: reattaching attachments to maps";
		4289	reattach $_ for values %MAP;
		4290	trace "perl_reload: reattaching attachments to players";
		4291	reattach $_ for values %PLAYER;
		4292	}
		4293
		4294	cf::_post_init 1;
		4295
		4296	trace "perl_reload: leaving sync_job";
		4297
		4298	1
		4299	} or do {
		4300	error $@;
		4301	cf::cleanup "perl_reload: error, exiting.";
		4302	};
		4303
		4304	--$RELOAD;
		4305	}
		4306
		4307	$t1 = AE::time - $t1;
		4308	info "perl_reload: completed in ${t1}s\n";
		4309	};
		4310
		4311	our $RELOAD_WATCHER; # used only during reload
		4312
		4313	sub reload_perl() {
		4314	# doing reload synchronously and two reloads happen back-to-back,
		4315	# coro crashes during coro_state_free->destroy here.
		4316
		4317	$RELOAD_WATCHER ||= cf::async {
		4318	Coro::AIO::aio_wait cache_extensions;
		4319
		4320	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4321	do_reload_perl;
		4322	undef $RELOAD_WATCHER;
		4323	};
2108	};	4324	};
2109
2110	if ($@) {
2111	warn $@;
2112	warn "error while reloading, exiting.";
2113	exit 1;
2114	}
2115
2116	warn "reloaded successfully";
2117	};
2118
2119	#############################################################################
2120
2121	unless ($LINK_MAP) {
2122	$LINK_MAP = cf::map::new;
2123
2124	$LINK_MAP->width (41);
2125	$LINK_MAP->height (41);
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 10,
2134	cb => sub {
2135	$_[0]->w->cancel;
2136
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});
2155
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	4325	}
2161
2162	register "<global>", __PACKAGE__;
2163		4326
2164	register_command "reload" => sub {	4327	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	4328	my ($who, $arg) = @_;
2166		4329
2167	if ($who->flag (FLAG_WIZ)) {	4330	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	4331	$who->message ("reloading server.");
		4332	async {
		4333	$Coro::current->{desc} = "perl_reload";
		4334	reload_perl;
		4335	};
2171	}	4336	}
2172	};	4337	};
2173		4338
2174	unshift @INC, $LIBDIR;	4339	#############################################################################
2175		4340
2176	$TICK_WATCHER = Event->timer (	4341	my $bug_warning = 0;
2177	reentrant => 0,
2178	prio => 0,
2179	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,
2181	cb => sub {
2182	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;
2185		4342
2186	# if we are delayed by four ticks or more, skip them all	4343	sub wait_for_tick() {
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2188		4345
2189	$TICK_WATCHER->at ($NEXT_TICK);	4346	$WAIT_FOR_TICK->wait;
2190	$TICK_WATCHER->start;	4347	}
		4348
		4349	sub wait_for_tick_begin() {
		4350	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4351
		4352	my $signal = new Coro::Signal;
		4353	push @WAIT_FOR_TICK_BEGIN, $signal;
		4354	$signal->wait;
		4355	}
		4356
		4357	sub tick {
		4358	if ($Coro::current != $Coro::main) {
		4359	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4360	unless ++$bug_warning > 10;
		4361	return;
2191	},	4362	}
2192	);
2193		4363
2194	IO::AIO::max_poll_time $TICK * 0.2;	4364	cf::one_tick; # one server iteration
2195		4365
2196	Event->io (	4366	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2197	fd => IO::AIO::poll_fileno,
2198	poll => 'r',
2199	prio => 5,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203		4367
2204	Event->timer (	4368	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2205	data => WF_AUTOCANCEL,	4369	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2206	after => 0,	4370	Coro::async_pool {
2207	interval => 10,	4371	$Coro::current->{desc} = "runtime saver";
2208	cb => sub {
2209	(Coro::unblock_sub {
2210	write_runtime	4372	write_runtime_sync
2211	or warn "ERROR: unable to write runtime file: $!";	4373	or error "ERROR: unable to write runtime file: $!";
2212	})->();	4374	};
2213	},	4375	}
2214	);	4376
		4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4378	$sig->send;
		4379	}
		4380	$WAIT_FOR_TICK->broadcast;
		4381
		4382	$LOAD = ($NOW - $TICK_START) / $TICK;
		4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4384
		4385	if (0) {
		4386	if ($NEXT_TICK) {
		4387	my $jitter = $TICK_START - $NEXT_TICK;
		4388	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4389	debug "jitter $JITTER\n";#d#
		4390	}
		4391	}
		4392	}
		4393
		4394	{
		4395	# configure BDB
		4396	info "initialising database";
		4397
		4398	BDB::min_parallel 16;
		4399	BDB::max_poll_reqs $TICK * 0.1;
		4400	#$AnyEvent::BDB::WATCHER->priority (1);
		4401
		4402	unless ($DB_ENV) {
		4403	$DB_ENV = BDB::db_env_create;
		4404	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4405	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4406	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4407	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4408	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4409
		4410	cf::sync_job {
		4411	eval {
		4412	BDB::db_env_open
		4413	$DB_ENV,
		4414	$BDBDIR,
		4415	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4416	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4417	0666;
		4418
		4419	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4420	};
		4421
		4422	cf::cleanup "db_env_open(db): $@" if $@;
		4423	};
		4424	}
		4425
		4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4428	};
		4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4431	};
		4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
		4435
		4436	info "database initialised";
		4437	}
		4438
		4439	{
		4440	# configure IO::AIO
		4441
		4442	info "initialising aio";
		4443	IO::AIO::min_parallel 8;
		4444	IO::AIO::max_poll_time $TICK * 0.1;
		4445	undef $AnyEvent::AIO::WATCHER;
		4446	info "aio initialised";
		4447	}
		4448
		4449	our $_log_backtrace;
		4450	our $_log_backtrace_last;
		4451
		4452	sub _log_backtrace {
		4453	my ($msg, @addr) = @_;
		4454
		4455	$msg =~ s/\n$//;
		4456
		4457	if ($_log_backtrace_last eq $msg) {
		4458	LOG llevInfo, "[ABT] $msg\n";
		4459	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4460	# limit the # of concurrent backtraces
		4461	} elsif ($_log_backtrace < 2) {
		4462	$_log_backtrace_last = $msg;
		4463	++$_log_backtrace;
		4464	my $perl_bt = Carp::longmess $msg;
		4465	async {
		4466	$Coro::current->{desc} = "abt $msg";
		4467
		4468	my @bt = fork_call {
		4469	@addr = map { sprintf "%x", $_ } @addr;
		4470	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4471	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4472	or die "addr2line: $!";
		4473
		4474	my @funcs;
		4475	my @res = <$fh>;
		4476	chomp for @res;
		4477	while (@res) {
		4478	my ($func, $line) = splice @res, 0, 2, ();
		4479	push @funcs, "[$func] $line";
		4480	}
		4481
		4482	@funcs
		4483	};
		4484
		4485	LOG llevInfo, "[ABT] $perl_bt\n";
		4486	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4487	LOG llevInfo, "[ABT] $_\n" for @bt;
		4488	--$_log_backtrace;
		4489	};
		4490	} else {
		4491	LOG llevInfo, "[ABT] $msg\n";
		4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4493	}
		4494	}
		4495
		4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
2215		4499
2216	END { cf::emergency_save }	4500	END { cf::emergency_save }
2217		4501
2218	1	4502	1
2219		4503

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