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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.587 by root, Wed Oct 31 19:09:47 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use 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 ();
		62	use IO::AIO ();
24	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
25		66
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
27		68
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	69	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		73
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		82
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
34		86
35	our %COMMAND = ();	87	our %COMMAND = ();
36	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
		89
		90	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
		93	our %EXT_CORO = (); # coroutines bound to extensions
		94	our %EXT_MAP = (); # pluggable maps
38		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	97	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
41		100
42	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	102
		103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
		108	our $LOCALDIR = localdir;
		109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		112	our $RANDOMDIR = "$LOCALDIR/random";
		113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
		124
		125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
45	our $NOW;	143	our $NOW;
46		144
47	our %CFG;	145	our (%PLAYER, %PLAYER_LOADING); # all users
		146	our (%MAP, %MAP_LOADING ); # all maps
		147	our $LINK_MAP; # the special {link} map, which is always available
48		148
49	our $UPTIME; $UPTIME ||= time;	149	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		151
52	our %MAP; # all maps	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	153	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	154	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	155	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
57		164
58	binmode STDOUT;	165	binmode STDOUT;
59	binmode STDERR;	166	binmode STDERR;
60		167
61	# read virtual server time, if available	168	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
66	}	173	}
67		174
68	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		176
74	# a special map that is always available	177	mkdir $_
75	our $LINK_MAP;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		179
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	180	our $EMERGENCY_POSITION;
		181
		182	sub cf::map::normalise;
		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
78		187
79	#############################################################################	188	#############################################################################
80		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
81	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
82		202
83	=over 4	203	=over 4
84		204
85	=item $cf::UPTIME	205	=item $cf::UPTIME
86		206
87	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
88		223
89	=item $cf::RUNTIME	224	=item $cf::RUNTIME
90		225
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	227	every server tick.
93		228
94	=item $cf::LIBDIR	229	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		230	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		231	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		232
96	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		235	unique-items directory, player file directory, random maps directory and
		236	database environment.
98		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
99	=item $cf::NOW	244	=item $cf::LOAD
100		245
101	The time of the last (current) server tick.	246	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		247
107	=item %cf::CFG	248	=item %cf::CFG
108		249
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	251	from wherever your confdir points to.
111		252
		253	=item cf::wait_for_tick, cf::wait_for_tick_begin
		254
		255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		256	returns directly I<after> the tick processing (and consequently, can only wake one thread
		257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
112	=back	288	=back
113		289
114	=cut	290	=cut
115		291
116	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	299	my $msg = join "", @_;
119	utf8::encode $msg;
120		300
121	$msg .= "\n"	301	$msg .= "\n"
122	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
123		303
124	LOG llevError, "cfperl: $msg";	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	305
126	}	306	LOG llevWarn, $msg;
		307	};
		308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
127		322
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		330
135	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	332	# within the Safe compartment.
137	for my $pkg (qw(	333	for my $pkg (qw(
138	cf::global cf::attachable	334	cf::global cf::attachable
139	cf::object cf::object::player	335	cf::object cf::object::player
140	cf::client cf::player	336	cf::client cf::player
141	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
142	cf::map cf::party cf::region	339	cf::party cf::region
143	)) {	340	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	342	}
147		343
148	$Event::DIED = sub {	344	$EV::DIED = sub {
149	warn "error in event callback: @_";	345	warn "error in event callback: $@";
150	};	346	};
151		347
152	my %ext_pkg;	348	#############################################################################
153	my @exts;	349
154	my @hook;	350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
155		354
156	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
157		356
158	=over 4	357	=over 4
159		358
160	=cut	359	=item dumpval $ref
161		360
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	361	=cut
163		362
		363	sub dumpval {
		364	eval {
		365	local $SIG{__DIE__};
		366	my $d;
		367	if (1) {
		368	$d = new Data::Dumper([$_[0]], ["*var"]);
		369	$d->Terse(1);
		370	$d->Indent(2);
		371	$d->Quotekeys(0);
		372	$d->Useqq(1);
		373	#$d->Bless(...);
		374	$d->Seen($_[1]) if @_ > 1;
		375	$d = $d->Dump();
		376	}
		377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		378	$d
		379	} || "[unable to dump $_[0]: '$@']";
		380	}
		381
		382	=item $scalar = cf::load_file $path
		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
164	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
165		435
166	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
167		437
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
176		439
177	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
178		441
179	=cut	442	=cut
180		443
181	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
183	JSON::Syck::Dump $_[0]	446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
184	}	465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
		511	=item cf::lock_wait $string
		512
		513	Wait until the given lock is available. See cf::lock_acquire.
		514
		515	=item my $lock = cf::lock_acquire $string
		516
		517	Wait until the given lock is available and then acquires it and returns
		518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		519	for example when the coroutine gets canceled), the lock is automatically
		520	returned.
		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
		525	Lock names should begin with a unique identifier (for example, cf::map::find
		526	uses map_find and cf::map::load uses map_load).
		527
		528	=item $locked = cf::lock_active $string
		529
		530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
		535
		536	sub lock_wait($) {
		537	$LOCKS->wait ($_[0]);
		538	}
		539
		540	sub lock_acquire($) {
		541	$LOCKS->guard ($_[0])
		542	}
		543
		544	sub lock_active($) {
		545	$LOCKS->count ($_[0]) < 1
		546	}
		547
		548	sub freeze_mainloop {
		549	tick_inhibit_inc;
		550
		551	&Guard::guard (\&tick_inhibit_dec);
		552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
		621	}
		622	};
		623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
		637	}
		638
		639	=item cf::async { BLOCK }
		640
		641	Currently the same as Coro::async_pool, meaning you cannot use
		642	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		643	thing you are allowed to do is call C<prio> on it.
		644
		645	=cut
		646
		647	BEGIN { *async = \&Coro::async_pool }
185		648
186	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
187		650
188	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
191		655
192	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
195	fast or be very important.	659	fast or be very important.
…		…
197	=cut	661	=cut
198		662
199	sub sync_job(&) {	663	sub sync_job(&) {
200	my ($job) = @_;	664	my ($job) = @_;
201		665
202	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
203	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
205		671
206	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	673
208	local $FREEZE = 1;	674	my $freeze_guard = freeze_mainloop;
209		675
210	my $busy = 1;	676	my $busy = 1;
211	my @res;	677	my @res;
212		678
213	(Coro::async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	681	@res = eval { $job->() };
215	warn $@ if $@;	682	error $@ if $@;
216	undef $busy;	683	undef $busy;
217	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
218		685
219	while ($busy) {	686	while ($busy) {
		687	if (Coro::nready) {
220	Coro::cede_notself;	688	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
222	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
223		697
224	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
225	} else {	699	} else {
226	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
227		701
228	$job->()	702	$job->()
229	}	703	}
230	}	704	}
231		705
232	=item $coro = cf::coro { BLOCK }	706	=item $coro = cf::async_ext { BLOCK }
233		707
234	Creates and returns a new coro. This coro is automcatially being canceled	708	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	709	extension calling this is being unloaded.
236		710
237	=cut	711	=cut
238		712
239	sub coro(&) {	713	sub async_ext(&) {
240	my $cb = shift;	714	my $cb = shift;
241		715
242	my $coro; $coro = async {	716	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		717
249	$coro->on_destroy (sub {	718	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	719	delete $EXT_CORO{$coro+0};
251	});	720	});
252	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
253		722
254	$coro	723	$coro
255	}	724	}
256		725
257	sub write_runtime {	726	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		727
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
261	or return;	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
262		732
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	733	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		734
267	aio_fsync $fh	735	sub post_fork {
268	and return;	736	reset_signals;
		737	}
269		738
270	close $fh	739	sub fork_call(&@) {
271	or return;	740	my ($cb, @args) = @_;
272		741
273	aio_rename "$runtime~", $runtime	742	# we seemingly have to make a local copy of the whole thing,
274	and return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
275		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
276	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
		918	}
		919
		920	=item cf::datalog type => key => value, ...
		921
		922	Log a datalog packet of the given type with the given key-value pairs.
		923
		924	=cut
		925
		926	sub datalog($@) {
		927	my ($type, %kv) = @_;
		928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	929	}
278		930
279	=back	931	=back
280		932
281	=cut	933	=cut
282		934
283	#############################################################################	935	#############################################################################
284		936
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
396		938
397	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
400		942
401	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	945	Deliantra).
404		946
405	=over 4	947	=over 4
406		948
407	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
408		950
…		…
452	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
453		995
454	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
456		998
457	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
459		1001
460	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
461		1003
462	=over 4	1004	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	1064	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	1065	our @CB_MAP = ();
524		1066
525	my %attachment;	1067	my %attachment;
526		1068
		1069	sub cf::attachable::thawer_merge {
		1070	# simply override everything except _meta
		1071	local $_[0]{_meta};
		1072	%{$_[0]} = %{$_[1]};
		1073	}
		1074
527	sub _attach_cb($$$$) {	1075	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	1076	my ($registry, $event, $prio, $cb) = @_;
529		1077
530	use sort 'stable';	1078	use sort 'stable';
531		1079
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
566		1114
567	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1119
572	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
574		1122
575	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
580		1128
581	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1131
584	} elsif (ref $type) {	1132	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
586		1134
587	} else {	1135	} else {
588	shift @arg;	1136	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
590	}	1138	}
591	}	1139	}
592	}	1140	}
593		1141
594	sub _object_attach {	1142	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
605	}	1153	}
606		1154
607	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
608	} else {	1156	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1158	}
611		1159
612	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
613	}	1161	}
614		1162
…		…
616	if (ref $_[0]) {	1164	if (ref $_[0]) {
617	_object_attach @_;	1165	_object_attach @_;
618	} else {	1166	} else {
619	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
620	}	1168	}
		1169	_recalc_want;
621	};	1170	};
622		1171
623	# all those should be optimised	1172	# all those should be optimised
624	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1178	reattach ($obj);
630	} else {	1179	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
632	}	1181	}
		1182	_recalc_want;
633	};	1183	};
634		1184
635	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
637		1187
…		…
652	";	1202	";
653	die if $@;	1203	die if $@;
654	}	1204	}
655		1205
656	our $override;	1206	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1208
659	sub override {	1209	sub override {
660	$override = 1;	1210	$override = 1;
661	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
662	}	1212	}
663		1213
664	sub do_invoke {	1214	sub do_invoke {
665	my $event = shift;	1215	my $event = shift;
666	my $callbacks = shift;	1216	my $callbacks = shift;
667		1217
668	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
669		1219
670	local $override;	1220	local $override;
671		1221
672	for (@$callbacks) {	1222	for (@$callbacks) {
673	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
674		1224
675	if ($@) {	1225	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1227	override;
679	}	1228	}
680		1229
681	return 1 if $override;	1230	return 1 if $override;
682	}	1231	}
683		1232
684	0	1233	0
685	}	1234	}
686		1235
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1237
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1239
691	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
692		1241
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1245
697	=back	1246	=back
698		1247
699	=cut	1248	=cut
700		1249
701	#############################################################################	1250	#############################################################################
702	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
703		1294
704	sub reattach {	1295	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1297	my ($obj) = @_;
		1298
		1299	# no longer needed after getting rid of delete_package?
		1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1301
708	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
709		1303
710	@$registry = ();	1304	@$registry = ();
711		1305
…		…
716	for (@$attach) {	1310	for (@$attach) {
717	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
719	}	1313	}
720	} else {	1314	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1316	}
723	}	1317	}
724	}	1318	}
725		1319
726	cf::attachable->attach (	1320	cf::attachable->attach (
727	prio => -1000000,	1321	prio => -1000000,
728	on_instantiate => sub {	1322	on_instantiate => sub {
729	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
730		1324
731	$data = from_json $data;	1325	$data = decode_json $data;
732		1326
733	for (@$data) {	1327	for (@$data) {
734	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
735		1329
736	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1346	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
754		1348
755	sync_job {	1349	sync_job {
756	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
759		1355
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1359	if ($cf::USE_FSYNC) {
		1360	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;
763	aio_fsync $fh;	1361	aio_fsync $fh;
		1362	}
764	close $fh;	1363	aio_close $fh;
765		1364
766	if (@$objs) {	1365	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
		1370	if ($cf::USE_FSYNC) {
		1371	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;
771	aio_fsync $fh;	1372	aio_fsync $fh;
		1373	}
772	close $fh;	1374	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
774	}	1376	}
775	} else {	1377	} else {
776	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
777	}	1379	}
778		1380
779	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1385	} else {
781	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
782	}	1387	}
783	} else {	1388	} else {
784	aio_unlink $filename;	1389	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
786	}	1391	}
787	}	1392	};
788	}	1393	}
789		1394
790	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
792		1397
…		…
804	or return;	1409	or return;
805		1410
806	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
808	or return;	1413	or return;
		1414
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
810	}	1417	}
811		1418
		1419	utf8::decode (my $decname = $filename);
		1420	trace sprintf "loading %s (%d,%d)\n",
		1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
812	return ($data, $av);	1424	($data, $av)
813	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
814		1432
815	#############################################################################	1433	#############################################################################
816	# command handling &c	1434	# command handling &c
817		1435
818	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1450	}
833		1451
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1453
836	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
837		1459
838	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
839	called.	1461	called.
840		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
841	=cut	1474	=cut
842		1475
843	sub register_extcmd {	1476	sub register_extcmd {
844	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
845		1478
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1479	$EXTCMD{$name} = $cb;
850	}	1480	}
		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
851		1489
852	cf::player->attach (	1490	cf::player->attach (
853	on_command => sub {	1491	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
855		1493
856	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
857	or return;	1495	or return;
858		1496
…		…
863	cf::override;	1501	cf::override;
864	},	1502	},
865	on_extcmd => sub {	1503	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
867		1505
868	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1507
870	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
876	} else {	1520	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1522	}
879		1523
880	cf::override;	1524	cf::override;
881	},	1525	},
882	);	1526	);
883		1527
884	sub register {	1528	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1529	sub cache_extensions {
891	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
892		1531
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1535	}
943	}	1536	};
944		1537
945	# remove extcmds	1538	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1539	}
947	delete $EXTCMD{$name};
948	}
949		1540
950	if (my $cb = $pkg->can ("unload")) {	1541	sub _ext_cfg_reg($$$$) {
951	eval {	1542	my ($rvar, $varname, $cfgname, $default) = @_;
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956		1543
957	Symbol::delete_package $pkg;	1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
958	}	1550	}
959		1551
960	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
961	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1561	next unless -r $path;
963	eval {	1562
964	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
965	1	1635	}
966	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
967	}	1648	};
968	}	1649	}
969		1650
970	#############################################################################	1651	#############################################################################
971	# load/save/clean perl data associated with a map
972		1652
973	*cf::mapsupport::on_clean = sub {	1653	=back
		1654
		1655	=head2 CORE EXTENSIONS
		1656
		1657	Functions and methods that extend core deliantra objects.
		1658
		1659	=cut
		1660
		1661	package cf::player;
		1662
		1663	use Coro::AIO;
		1664
		1665	=head3 cf::player
		1666
		1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
		1682
		1683	=item cf::player::find $login
		1684
		1685	Returns the given player object, loading it if necessary (might block).
		1686
		1687	=cut
		1688
		1689	sub playerdir($) {
		1690	"$PLAYERDIR/"
		1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1692	}
		1693
		1694	sub path($) {
		1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1696
		1697	(playerdir $login) . "/playerdata"
		1698	}
		1699
		1700	sub find_active($) {
		1701	$cf::PLAYER{$_[0]}
		1702	and $cf::PLAYER{$_[0]}->active
		1703	and $cf::PLAYER{$_[0]}
		1704	}
		1705
		1706	sub exists($) {
974	my ($map) = @_;	1707	my ($login) = @_;
975		1708
976	my $path = $map->tmpname;	1709	$cf::PLAYER{$login}
977	defined $path or return;	1710	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1711	}
990		1712
991	# TODO: compatibility cruft, remove when no longer needed	1713	sub find($) {
		1714	return $cf::PLAYER{$_[0]} || do {
		1715	my $login = $_[0];
		1716
		1717	my $guard = cf::lock_acquire "user_find:$login";
		1718
		1719	$cf::PLAYER{$_[0]} || do {
		1720	# rename old playerfiles to new ones
		1721	#TODO: remove when no longer required
		1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1725	aio_unlink +(playerdir $login) . "/$login.pl";
		1726
		1727	my $f = new_from_file cf::object::thawer path $login
		1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
		1735	$cf::PLAYER{$login} = $pl
		1736	}
		1737	}
		1738	}
		1739
992	cf::player->attach (	1740	cf::player->attach (
993	on_load => sub {	1741	on_load => sub {
994	my ($pl, $path) = @_;	1742	my ($pl, $path) = @_;
995		1743
996	for my $o (all_objects $pl->ob) {	1744	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1745	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1746
1000	%$o = %{ Storable::thaw pack "H*", $value };	1747	$pl->ob->current_weapon ($slots->[0]);
1001	}	1748	$pl->combat_ob ($slots->[1]);
1002	}	1749	$pl->ranged_ob ($slots->[2]);
1003	},	1750	},
1004	);	1751	);
1005		1752
1006	#############################################################################	1753	sub save($) {
		1754	my ($pl) = @_;
1007		1755
1008	=head2 CORE EXTENSIONS	1756	return if $pl->{deny_save};
1009		1757
1010	Functions and methods that extend core crossfire objects.	1758	my $path = path $pl;
		1759	my $guard = cf::lock_acquire "user_save:$path";
1011		1760
1012	=head3 cf::player	1761	return if $pl->{deny_save};
		1762
		1763	aio_mkdir playerdir $pl, 0770;
		1764	$pl->{last_save} = $cf::RUNTIME;
		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
		1771	$pl->save_pl ($path);
		1772	cf::cede_to_tick;
		1773	}
		1774
		1775	sub new($) {
		1776	my ($login) = @_;
		1777
		1778	my $self = create;
		1779
		1780	$self->ob->name ($login);
		1781	$self->{deny_save} = 1;
		1782
		1783	$cf::PLAYER{$login} = $self;
		1784
		1785	$self
		1786	}
		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
		1798	=item $pl->quit_character
		1799
		1800	Nukes the player without looking back. If logged in, the connection will
		1801	be destroyed. May block for a long time.
		1802
		1803	=cut
		1804
		1805	sub quit_character {
		1806	my ($pl) = @_;
		1807
		1808	my $name = $pl->ob->name;
		1809
		1810	$pl->{deny_save} = 1;
		1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1812
		1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
		1820	$pl->ns->destroy if $pl->ns;
		1821
		1822	my $path = playerdir $pl;
		1823	my $temp = "$path~$cf::RUNTIME~deleting~";
		1824	aio_rename $path, $temp;
		1825	delete $cf::PLAYER{$pl->ob->name};
		1826	$pl->destroy;
		1827
		1828	my $prefix = qr<^~\Q$name\E/>;
		1829
		1830	# nuke player maps
		1831	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1832
		1833	IO::AIO::aio_rmtree $temp;
		1834	}
		1835
		1836	=item $pl->kick
		1837
		1838	Kicks a player out of the game. This destroys the connection.
		1839
		1840	=cut
		1841
		1842	sub kick {
		1843	my ($pl, $kicker) = @_;
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1846	$pl->killer ("kicked");
		1847	$pl->ns->destroy;
		1848	}
		1849
		1850	=item cf::player::list_logins
		1851
		1852	Returns am arrayref of all valid playernames in the system, can take a
		1853	while and may block, so not sync_job-capable, ever.
		1854
		1855	=cut
		1856
		1857	sub list_logins {
		1858	my $dirs = aio_readdir $PLAYERDIR
		1859	or return [];
		1860
		1861	my @logins;
		1862
		1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
		1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1870	aio_read $fh, 0, 512, my $buf, 0 or next;
		1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
		1873
		1874	utf8::decode $login;
		1875	push @logins, $login;
		1876	}
		1877
		1878	\@logins
		1879	}
		1880
		1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
		1884
		1885	Returns an arrayref of map paths that are private for this
		1886	player. May block.
		1887
		1888	=cut
		1889
		1890	sub maps($) {
		1891	my ($pl) = @_;
		1892
		1893	$pl = ref $pl ? $pl->ob->name : $pl;
		1894
		1895	my $files = aio_readdir playerdir $pl
		1896	or return;
		1897
		1898	my @paths;
		1899
		1900	for (@$files) {
		1901	utf8::decode $_;
		1902	next if /\.(?:pl|pst)$/;
		1903	next unless /^$PATH_SEP/o;
		1904
		1905	push @paths, cf::map::normalise "~$pl/$_";
		1906	}
		1907
		1908	\@paths
		1909	}
		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
		1915	=item $player->ext_reply ($msgid, @msg)
		1916
		1917	Sends an ext reply to the player.
		1918
		1919	=cut
		1920
		1921	sub ext_reply($$@) {
		1922	my ($self, $id, @msg) = @_;
		1923
		1924	$self->ns->ext_reply ($id, @msg)
		1925	}
		1926
		1927	=item $player->ext_msg ($type, @msg)
		1928
		1929	Sends an ext event to the client.
		1930
		1931	=cut
		1932
		1933	sub ext_msg($$@) {
		1934	my ($self, $type, @msg) = @_;
		1935
		1936	$self->ns->ext_msg ($type, @msg);
		1937	}
		1938
		1939	=head3 cf::region
1013		1940
1014	=over 4	1941	=over 4
1015		1942
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1943	=cut
1021		1944
1022	sub cf::player::exists($) {	1945	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1946
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1947	=item cf::region::find_by_path $path
1028		1948
1029	Sends an ext reply to the player.	1949	Tries to decuce the likely region for a map knowing only its path.
1030		1950
1031	=cut	1951	=cut
1032		1952
1033	sub cf::player::ext_reply($$$%) {	1953	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1954	my ($path) = @_;
1035		1955
1036	$msg{msgid} = $id;	1956	$path =~ s/^~[^\/]*//; # skip ~login
1037		1957
1038	$self->send ("ext " . to_json \%msg);	1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
1039	}	1968	}
1040		1969
1041	=back	1970	=back
1042
1043		1971
1044	=head3 cf::map	1972	=head3 cf::map
1045		1973
1046	=over 4	1974	=over 4
1047		1975
…		…
1050	package cf::map;	1978	package cf::map;
1051		1979
1052	use Fcntl;	1980	use Fcntl;
1053	use Coro::AIO;	1981	use Coro::AIO;
1054		1982
		1983	use overload
		1984	'""' => \&as_string,
		1985	fallback => 1;
		1986
1055	our $MAX_RESET = 7200;	1987	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1988	our $DEFAULT_RESET = 3000;
1057		1989
1058	sub generate_random_map {	1990	sub generate_random_map {
		1991	my ($self, $rmp) = @_;
		1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
		1995	$self->_create_random_map ($rmp);
		1996	}
		1997
		1998	=item cf::map->register ($regex, $prio)
		1999
		2000	Register a handler for the map path matching the given regex at the
		2001	givne priority (higher is better, built-in handlers have priority 0, the
		2002	default).
		2003
		2004	=cut
		2005
		2006	sub register {
		2007	my (undef, $regex, $prio) = @_;
		2008	my $pkg = caller;
		2009
		2010	push @{"$pkg\::ISA"}, __PACKAGE__;
		2011
		2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2013	}
		2014
		2015	# also paths starting with '/'
		2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2017
		2018	sub thawer_merge {
		2019	my ($self, $merge) = @_;
		2020
		2021	# we have to keep some variables in memory intact
		2022	local $self->{path};
		2023	local $self->{load_path};
		2024
		2025	$self->SUPER::thawer_merge ($merge);
		2026	}
		2027
		2028	sub normalise {
1059	my ($path, $rmp) = @_;	2029	my ($path, $base) = @_;
1060		2030
1061	# mit "rum" bekleckern, nicht	2031	$path = "$path"; # make sure it's a string
1062	cf::map::_create_random_map	2032
		2033	$path =~ s/\.map$//;
		2034
		2035	# map plan:
		2036	#
		2037	# /! non-realised random map exit (special hack!)
		2038	# {... are special paths that are not being touched
		2039	# ?xxx/... are special absolute paths
		2040	# ?random/... random maps
		2041	# /... normal maps
		2042	# ~user/... per-player map of a specific user
		2043
		2044	$path =~ s/$PATH_SEP/\//go;
		2045
		2046	# treat it as relative path if it starts with
		2047	# something that looks reasonable
		2048	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2049	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2050
		2051	$base =~ s{[^/]+/?$}{};
		2052	$path = "$base/$path";
		2053	}
		2054
		2055	for ($path) {
		2056	redo if s{/\.?/}{/};
		2057	redo if s{/[^/]+/\.\./}{/};
		2058	}
		2059
1063	$path,	2060	$path
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})
1075	}	2061	}
1076		2062
1077	# and all this just because we cannot iterate over	2063	sub new_from_path {
1078	# all maps in C++...	2064	my (undef, $path, $base) = @_;
1079	sub change_all_map_light {	2065
		2066	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2067
		2068	$path = normalise $path, $base;
		2069
		2070	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2071	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2072	my $self = bless cf::map::new, $pkg;
		2073	$self->{path} = $path; $self->path ($path);
		2074	$self->init; # pass $1 etc.
		2075	return $self;
		2076	}
		2077	}
		2078
		2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2080	()
		2081	}
		2082
		2083	# may re-bless or do other evil things
		2084	sub init {
1080	my ($change) = @_;	2085	my ($self) = @_;
1081		2086
1082	$_->change_map_light ($change) for values %cf::MAP;	2087	$self
1083	}	2088	}
1084		2089
		2090	sub as_string {
		2091	my ($self) = @_;
		2092
		2093	"$self->{path}"
		2094	}
		2095
		2096	# the displayed name, this is a one way mapping
		2097	sub visible_name {
		2098	&as_string
		2099	}
		2100
		2101	# the original (read-only) location
		2102	sub load_path {
		2103	my ($self) = @_;
		2104
		2105	"$MAPDIR/$self->{path}.map"
		2106	}
		2107
		2108	# the temporary/swap location
		2109	sub save_path {
		2110	my ($self) = @_;
		2111
		2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2113	"$TMPDIR/$path.map"
		2114	}
		2115
		2116	# the unique path, undef == no special unique path
		2117	sub uniq_path {
		2118	my ($self) = @_;
		2119
		2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2121	"$UNIQUEDIR/$path"
		2122	}
		2123
		2124	sub decay_objects {
		2125	my ($self) = @_;
		2126
		2127	return if $self->{deny_reset};
		2128
		2129	$self->do_decay_objects;
		2130	}
		2131
		2132	sub unlink_save {
		2133	my ($self) = @_;
		2134
		2135	utf8::encode (my $save = $self->save_path);
		2136	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2137	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2138	}
		2139
1085	sub try_load_header($) {	2140	sub load_header_from($) {
1086	my ($path) = @_;	2141	my ($self, $path) = @_;
1087		2142
1088	utf8::encode $path;	2143	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1090	or return;	2145	or return;
1091		2146
1092	my $map = cf::map::new	2147	$self->_load_header ($f)
1093	or return;	2148	or return;
1094		2149
1095	$map->load_header ($path)	2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
		2153	$self->{load_path} = $path;
		2154
		2155	1
		2156	}
		2157
		2158	# used to laod the header of an original map
		2159	sub load_header_orig {
		2160	my ($self) = @_;
		2161
		2162	$self->load_header_from ($self->load_path)
		2163	}
		2164
		2165	# used to laod the header of an instantiated map
		2166	sub load_header_temp {
		2167	my ($self) = @_;
		2168
		2169	$self->load_header_from ($self->save_path)
		2170	}
		2171
		2172	# called after loading the header from an instantiated map
		2173	sub prepare_temp {
		2174	my ($self) = @_;
		2175
		2176	$self->last_access ((delete $self->{last_access})
		2177	|| $cf::RUNTIME); #d#
		2178	# safety
		2179	$self->{instantiate_time} = $cf::RUNTIME
		2180	if $self->{instantiate_time} > $cf::RUNTIME;
		2181	}
		2182
		2183	# called after loading the header from an original map
		2184	sub prepare_orig {
		2185	my ($self) = @_;
		2186
		2187	$self->{load_original} = 1;
		2188	$self->{instantiate_time} = $cf::RUNTIME;
		2189	$self->last_access ($cf::RUNTIME);
		2190	$self->instantiate;
		2191	}
		2192
		2193	sub load_header {
		2194	my ($self) = @_;
		2195
		2196	if ($self->load_header_temp) {
		2197	$self->prepare_temp;
		2198	} else {
		2199	$self->load_header_orig
1096	or return;	2200	or return;
		2201	$self->prepare_orig;
		2202	}
1097		2203
1098	$map->{load_path} = $path;	2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
1099		2206
1100	$map	2207	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2208	unless $self->default_region;
1102		2209
		2210	1
		2211	}
		2212
		2213	sub find;
1103	sub find_map {	2214	sub find {
1104	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1105		2216
1106	#warn "find_map<$path,$origin>\n";#d#	2217	cf::cede_to_tick;
1107		2218
1108	$path = new cf::path $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1109	my $key = $path->as_string;
1110		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2222	my $guard2 = cf::lock_acquire "map_find:$path";
		2223
1111	$cf::MAP{$key} || do {	2224	$cf::MAP{$path} || do {
1112	# do it the slow way	2225	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2226	or return;
1127		2227
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2228	$map->{last_save} = $cf::RUNTIME;
1139		2229
1140	if ($map->should_reset) {	2230	$map->load_header
		2231	or return;
		2232
		2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2234	# doing this can freeze the server in a sync job, obviously
		2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1141	$map->reset;	2238	$map->reset;
1142	$map = find_map $path;	2239	return find $path;
1143	}	2240	}
1144		2241
1145	$cf::MAP{$key} = $map	2242	$cf::MAP{$path} = $map
1146	}	2243	}
1147	}	2244	}
		2245
		2246	sub pre_load { }
		2247	#sub post_load { } # XS
1148		2248
1149	sub load {	2249	sub load {
1150	my ($self) = @_;	2250	my ($self) = @_;
1151		2251
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2252	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2253
1156	my $path = $self->{path};	2254	my $path = $self->{path};
1157		2255
		2256	{
		2257	my $guard = cf::lock_acquire "map_data:$path";
		2258
		2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
		2261
1158	$self->alloc;	2262	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2263
		2264	$self->pre_load;
		2265	cf::cede_to_tick;
		2266
		2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1160	or return;	2271	or return;
1161		2272
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1163	if delete $self->{load_original};	2274	if delete $self->{load_original};
1164		2275
1165	if (my $uniq = $path->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2277	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2280	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1170	}	2285	}
1171	}
1172		2286
		2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1173	# now do the right thing for maps	2296	# now do the right thing for maps
1174	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2299	unless $self->difficulty;
1186	$self->activate;	2300	cf::cede_to_tick;
		2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
		2312	}
		2313
		2314	$self->post_load;
		2315
1187	}	2316	1
1188
1189	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2317	}
1191		2318
1192	sub load_map_sync {	2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
		2322	sub customise_for {
		2323	my ($self, $ob) = @_;
		2324
		2325	return find "~" . $ob->name . "/" . $self->{path}
		2326	if $self->per_player;
		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
		2331	$self
		2332	}
		2333
		2334	sub find_sync {
1193	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1194		2336
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
1196		2340
1197	cf::sync_job {	2341	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2342	}
1199	or return;	2343
		2344	sub do_load_sync {
		2345	my ($map) = @_;
		2346
		2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
1200	$map->load;	2351	$map->load;
1201	$map	2352	}
		2353
		2354	our %MAP_PREFETCH;
		2355	our $MAP_PREFETCHER = undef;
		2356
		2357	sub find_async {
		2358	my ($path, $origin, $load) = @_;
		2359
		2360	$path = normalise $path, $origin;
		2361
		2362	if (my $map = $cf::MAP{$path}) {
		2363	return $map if !$load || $map->linkable;
		2364	}
		2365
		2366	$MAP_PREFETCH{$path} |= $load;
		2367
		2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
		2371	while (%MAP_PREFETCH) {
		2372	while (my ($k, $v) = each %MAP_PREFETCH) {
		2373	if (my $map = find $k) {
		2374	$map->load if $v;
		2375	}
		2376
		2377	delete $MAP_PREFETCH{$k};
		2378	}
		2379	}
		2380	undef $MAP_PREFETCHER;
		2381	};
		2382	$MAP_PREFETCHER->prio (6);
		2383
		2384	()
		2385	}
		2386
		2387	# common code, used by both ->save and ->swapout
		2388	sub _save {
		2389	my ($self) = @_;
		2390
		2391	$self->{last_save} = $cf::RUNTIME;
		2392
		2393	return unless $self->dirty;
		2394
		2395	my $save = $self->save_path; utf8::encode $save;
		2396	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2397
		2398	$self->{load_path} = $save;
		2399
		2400	return if $self->{deny_save};
		2401
		2402	local $self->{last_access} = $self->last_access;#d#
		2403
		2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
		2406	$_->contr->save for $self->players;
		2407	};
		2408
		2409	cf::get_slot 0.02;
		2410
		2411	if ($uniq) {
		2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2414	} else {
		2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2416	}
1203	}	2417	}
1204		2418
1205	sub save {	2419	sub save {
1206	my ($self) = @_;	2420	my ($self) = @_;
1207		2421
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2423
1211	$self->{last_save} = $cf::RUNTIME;	2424	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2425	}
1226		2426
1227	sub swap_out {	2427	sub swap_out {
1228	my ($self) = @_;	2428	my ($self) = @_;
1229		2429
		2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1230	return if $self->players;	2434	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
1234	$self->save;	2442	$self->_save;
		2443
		2444	# then free the map
1235	$self->clear;	2445	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2446	}
1238		2447
1239	sub reset_at {	2448	sub reset_at {
1240	my ($self) = @_;	2449	my ($self) = @_;
1241		2450
1242	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1245		2453
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2456
1250	$time + $to	2457	$time + $to
1251	}	2458	}
1252		2459
1253	sub should_reset {	2460	sub should_reset {
1254	my ($self) = @_;	2461	my ($self) = @_;
1255		2462
1256	$self->reset_at <= $cf::RUNTIME	2463	$self->reset_at <= $cf::RUNTIME
1257	}	2464	}
1258		2465
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	2466	sub reset {
1268	my ($self) = @_;	2467	my ($self) = @_;
1269		2468
		2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2470
1270	return if $self->players;	2471	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		2472
1273	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
		2474
		2475	$self->state (cf::MAP_SWAPPED);
		2476
		2477	# need to save uniques path
		2478	unless ($self->{deny_save}) {
		2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2480
		2481	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2482	if $uniq;
		2483	}
1274		2484
1275	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1276		2486
		2487	$self->deactivate;
1277	$_->clear_links_to ($self) for values %cf::MAP;	2488	$_->clear_links_to ($self) for values %cf::MAP;
		2489	$self->clear;
1278		2490
1279	$self->unlink_save;	2491	$self->unlink_save;
1280	$self->destroy;	2492	$self->destroy;
1281	}	2493	}
1282		2494
1283	sub customise_for {	2495	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		2496
1286	if ($map->per_player) {	2497	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2498	my ($self) = @_;
		2499
1288	}	2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
1289		2502
1290	$map	2503	delete $cf::MAP{$self->path};
1291	}
1292		2504
1293	sub emergency_save {	2505	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		2506
1296	warn "enter emergency map save\n";	2507	bless $self, "cf::map::wrap";
		2508	delete $self->{deny_reset};
		2509	$self->{deny_save} = 1;
		2510	$self->reset_timeout (1);
		2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		2512
1298	cf::sync_job {	2513	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};	2514	}
1302		2515
1303	warn "end emergency map save\n";	2516	$self->reset; # polite request, might not happen
		2517	}
		2518
		2519	=item $maps = cf::map::tmp_maps
		2520
		2521	Returns an arrayref with all map paths of currently instantiated and saved
		2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
		2527	[
		2528	map {
		2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
		2535	}
		2536
		2537	=item $maps = cf::map::random_maps
		2538
		2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
		2541
		2542	=cut
		2543
		2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
		2553	}
		2554
		2555	=item cf::map::unique_maps
		2556
		2557	Returns an arrayref of paths of all shared maps that have
		2558	instantiated unique items. May block.
		2559
		2560	=cut
		2561
		2562	sub unique_maps() {
		2563	[
		2564	map {
		2565	utf8::decode $_;
		2566	s/\.map$//; # TODO future compatibility hack
		2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2568	? ()
		2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
		2571	]
		2572	}
		2573
		2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
		2605
		2606	=back
		2607
		2608	=head3 cf::object
		2609
		2610	=cut
		2611
		2612	package cf::object;
		2613
		2614	=over 4
		2615
		2616	=item $ob->inv_recursive
		2617
		2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
		2620
		2621	=cut
		2622
		2623	sub inv_recursive_;
		2624	sub inv_recursive_ {
		2625	map { $_, inv_recursive_ $_->inv } @_
		2626	}
		2627
		2628	sub inv_recursive {
		2629	inv_recursive_ inv $_[0]
		2630	}
		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
1304	}	2658	}
1305		2659
1306	package cf;	2660	package cf;
1307		2661
1308	=back	2662	=back
1309
1310		2663
1311	=head3 cf::object::player	2664	=head3 cf::object::player
1312		2665
1313	=over 4	2666	=over 4
1314		2667
…		…
1317	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1318	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1319	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1320		2673
1321	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1322		2689
1323	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1324	# with dialog boxes.	2691	# with dialog boxes.
1325	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1326	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1328		2695
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2697
1331	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1333	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1334	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1336	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1337	}	2723	}
1338		2724
1339	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1340		2726
1341	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1350	(ref $cf::CFG{"may_$access"}	2736	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2737	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2738	: $cf::CFG{"may_$access"})
1353	}	2739	}
1354		2740
		2741	=item $player_object->enter_link
		2742
		2743	Freezes the player and moves him/her to a special map (C<{link}>).
		2744
		2745	The player should be reasonably safe there for short amounts of time (e.g.
		2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
		2749
		2750	Will never block.
		2751
		2752	=item $player_object->leave_link ($map, $x, $y)
		2753
		2754	Moves the player out of the special C<{link}> map onto the specified
		2755	map. If the map is not valid (or omitted), the player will be moved back
		2756	to the location he/she was before the call to C<enter_link>, or, if that
		2757	fails, to the emergency map position.
		2758
		2759	Might block.
		2760
		2761	=cut
		2762
		2763	sub link_map {
		2764	unless ($LINK_MAP) {
		2765	$LINK_MAP = cf::map::find "{link}"
		2766	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2767	$LINK_MAP->load;
		2768	}
		2769
		2770	$LINK_MAP
		2771	}
		2772
1355	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2774	my ($self) = @_;
1357		2775
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
		2777
		2778	++$self->{_link_recursion};
		2779
		2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2781
		2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2783	if $self->map && $self->map->{path} ne "{link}";
		2784
		2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1365	}	2786	}
1366		2787
1367	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
1369		2790
		2791	return unless $self->contr->active;
		2792
1370	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1371		2794
1372	unless ($map) {	2795	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2796	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2797	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2798	$map = cf::map::find $map;
1378		2799
1379	unless ($map) {	2800	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2801	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2802	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2803	or die "FATAL: cannot load emergency map\n";
1383	}	2804	}
1384	}	2805	}
1385		2806
1386	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1387	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1388		2809
1389	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1392		2813
1393	$map->load;	2814	$map->load;
1394		2815
		2816	return unless $self->contr->active;
		2817
		2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2819	if ($self->enter_map ($map, $x, $y)) {
		2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
1395	$self->activate_recursive;	2823	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	2824	}
1397	}
1398		2825
1399	=item $player_object->goto_map ($map, $x, $y)	2826	}
1400		2827
1401	=cut	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1402		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
		2839	=cut
		2840
		2841	our $GOTOGEN;
		2842
1403	sub cf::object::player::goto_map {	2843	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1405		2854
1406	$self->enter_link;	2855	$self->enter_link;
1407		2856
1408	(Coro::async {	2857	(async {
1409	$path = new cf::path $path;	2858	$Coro::current->{desc} = "player::goto $path $x $y";
1410		2859
1411	my $map = cf::map::find_map $path->as_string;	2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
		2879	my $map = eval {
		2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
		2885	} else {
		2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
1413		2888
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2889	$map
		2890	};
1416		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
		2895	}
		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1418	})->prio (1);	2903	})->prio (1);
1419	}	2904	}
1420		2905
1421	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1422		2907
…		…
1424		2909
1425	sub parse_random_map_params {	2910	sub parse_random_map_params {
1426	my ($spec) = @_;	2911	my ($spec) = @_;
1427		2912
1428	my $rmp = { # defaults	2913	my $rmp = { # defaults
1429	xsize => 10,	2914	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2915	ysize => (cf::rndm 15, 40),
		2916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2917	#layout => string,
1431	};	2918	};
1432		2919
1433	for (split /\n/, $spec) {	2920	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2921	my ($k, $v) = split /\s+/, $_, 2;
1435		2922
…		…
1447	# that depends on the exit object	2934	# that depends on the exit object
1448		2935
1449	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
1450		2937
1451	if ($exit->map) {	2938	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2939	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1456	}	2945	}
1457		2946
1458	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1459		2948
1460	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1461	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
		2951	my $meta = "$RANDOMDIR/$md5.meta";
1462		2952
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
		2955	undef $fh;
		2956	aio_rename "$meta~", $meta;
1465		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1466	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1468	}	2964	}
1469	}	2965	}
1470		2966
1471	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
1473		2969
1474	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1475		2971
1476	$self->enter_link;	2972	$self->enter_link;
1477		2973
1478	(Coro::async {	2974	(async {
		2975	$Coro::current->{desc} = "enter_exit";
		2976
1479	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
1480		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
1481	prepare_random_map $exit	2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
1482	if $exit->slaying eq "/!";	2994	$map = $exit->slaying;
1483		2995
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2996	} elsif ($slaying eq '!up') {
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
1486		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
		3007	$self->goto ($map, $x, $y);
		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
1487	1;	3013	1
1488	}) {	3014	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1490	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	3017	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1493		3019
1494	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
1495	$self->leave_link;	3021	$self->leave_link;
1496	}	3022	}
1497	})->prio (1);	3023	})->prio (1);
1498	}	3024	}
1499		3025
…		…
1510		3036
1511	sub cf::client::send_drawinfo {	3037	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	3038	my ($self, $text, $flags) = @_;
1513		3039
1514	utf8::encode $text;	3040	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	3042	}
1517		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
		3231	=item $client->ext_msg ($type, @msg)
		3232
		3233	Sends an ext event to the client.
		3234
		3235	=cut
		3236
		3237	sub cf::client::ext_msg($$@) {
		3238	my ($self, $type, @msg) = @_;
		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
		3243	push @msg, msgtype => "event_$type";
		3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3260	}
1518		3261
1519	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
1520		3263
1521	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1524		3267
1525	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
1526	reliable at some point in the future.	3269	become reliable at some point in the future.
1527		3270
1528	=cut	3271	=cut
1529		3272
1530	sub cf::client::query {	3273	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	3282	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		3284
1542	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
1544	}	3289	}
1545		3290
1546	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
1547	on_reply => sub {	3297	on_reply => sub {
1548	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
1549		3299
1550	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
1551	# get handled first	3301	# get handled first
1552	my $queue = delete $ns->{query_queue};	3302	my $queue = delete $ns->{query_queue}
		3303	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		3304
1554	(shift @$queue)->[1]->($msg);	3305	(shift @$queue)->[1]->($msg);
		3306	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		3307
1556	push @{ $ns->{query_queue} }, @$queue;	3308	push @{ $ns->{query_queue} }, @$queue;
1557		3309
1558	if (@{ $ns->{query_queue} } == @$queue) {	3310	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	3311	if (@$queue) {
…		…
1561	} else {	3313	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	3315	}
1564	}	3316	}
1565	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
1566	);	3341	);
1567		3342
1568	=item $client->coro (\&cb)	3343	=item $client->async (\&cb)
1569		3344
1570	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	3346	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	3347	or loss of connection).
1573		3348
1574	=cut	3349	=cut
1575		3350
1576	sub cf::client::coro {	3351	sub cf::client::async {
1577	my ($self, $cb) = @_;	3352	my ($self, $cb) = @_;
1578		3353
1579	my $coro; $coro = async {	3354	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		3355
1586	$coro->on_destroy (sub {	3356	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	3357	delete $self->{_coro}{$coro+0};
1588	});	3358	});
1589		3359
…		…
1591		3361
1592	$coro	3362	$coro
1593	}	3363	}
1594		3364
1595	cf::client->attach (	3365	cf::client->attach (
1596	on_destroy => sub {	3366	on_client_destroy => sub {
1597	my ($ns) = @_;	3367	my ($ns) = @_;
1598		3368
1599	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1600	},	3370	},
1601	);	3371	);
…		…
1616	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
1617	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
1618		3388
1619	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
1620		3390
1621	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
1622		3396
1623	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
1624		3398
1625	=pod	3399	=pod
1626		3400
1627	The following fucntions and emthods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
1628		3402
1629	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
1630	cf::object::player player	3408	cf::object::player
1631	cf::player peaceful	3409	player
1632	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
1633		3416
1634	=cut	3417	=cut
1635		3418
1636	for (	3419	for (
1637	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
1638	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
1639	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
1640	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
1641	) {	3426	) {
1642	no strict 'refs';
1643	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1645	for @funs;	3429	for @funs;
1646	}	3430	}
1647		3431
…		…
1662		3446
1663	my $qcode = $code;	3447	my $qcode = $code;
1664	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1665	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
1666		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
1667	local $_;	3454	local $_;
1668	local @safe::cf::_safe_eval_args = values %vars;
1669		3455
1670	my $eval =	3456	my $eval =
1671	"do {\n"	3457	"do {\n"
1672	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1673	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
1674	. $code	3460	. $code
1675	. "\n}"	3461	. "\n}"
1676	;	3462	;
1677		3463
		3464	if ($CFG{safe_eval}) {
1678	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
1679	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1680	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
1681		3473
1682	if ($@) {	3474	if ($@) {
1683	warn "$@";	3475	warn "$@",
1684	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
1685	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
1686	}	3478	}
1687		3479
1688	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
1689	}	3481	}
1690		3482
…		…
1704	=cut	3496	=cut
1705		3497
1706	sub register_script_function {	3498	sub register_script_function {
1707	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
1708		3500
1709	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
1710	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
1711	}	3503	}
1712		3504
1713	=back	3505	=back
1714		3506
1715	=cut	3507	=cut
1716		3508
1717	#############################################################################	3509	#############################################################################
		3510	# the server's init and main functions
1718		3511
1719	=head2 EXTENSION DATABASE SUPPORT	3512	our %FACEHASH; # hash => idx, #d# HACK for http server
1720		3513
1721	Crossfire maintains a very simple database for extension use. It can	3514	sub load_facedata($) {
1722	currently store anything that can be serialised using Storable, which	3515	my ($path) = @_;
1723	excludes objects.
1724		3516
1725	The parameter C<$family> should best start with the name of the extension	3517	# HACK to clear player env face cache, we need some signal framework
1726	using it, it should be unique.	3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
1727		3520
1728	=over 4	3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1729		3522
1730	=item $hashref = cf::db_get $family	3523	trace "loading facedata from $path\n";
1731		3524
1732	Return a hashref for use by the extension C<$family>, which can be	3525	my $facedata = decode_storable load_file $path;
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735		3526
1736	=item $value = cf::db_get $family => $key	3527	$facedata->{version} == 2
		3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
1737		3529
1738	Returns a single value from the database	3530	# patch in the exptable
1739		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1740	=item cf::db_put $family => $hashref	3532	$facedata->{resource}{"res/exp_table"} = {
1741		3533	type => FT_RSRC,
1742	Stores the given family hashref into the database. Updates are delayed, if	3534	data => $exp_table,
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3535	hash => (Digest::MD5::md5 $exp_table),
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}
1769
1770	my $pid;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	3536	};
		3537	cf::cede_to_tick;
1793		3538
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}	3539	{
		3540	my $faces = $facedata->{faceinfo};
1798		3541
1799	sub db_get($;$) {	3542	for my $face (sort keys %$faces) {
1800	@_ >= 2	3543	my $info = $faces->{$face};
1801	? $DB->{$_[0]}{$_[1]}	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		3545
1805	sub db_put($$;$) {	3546	cf::face::set_visibility $idx, $info->{visibility};
1806	if (@_ >= 3) {	3547	cf::face::set_magicmap $idx, $info->{magicmap};
1807	$DB->{$_[0]}{$_[1]} = $_[2];	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1808	} else {	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1809	$DB->{$_[0]} = $_[1];	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1810	}	3551	$FACEHASH{$info->{hash64}} = $idx;#d#
1811	db_dirty;
1812	}
1813		3552
1814	cf::global->attach (	3553	cf::cede_to_tick;
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	3554	}
		3555
		3556	while (my ($face, $info) = each %$faces) {
		3557	next unless $info->{smooth};
		3558
		3559	my $idx = cf::face::find $face
		3560	or next;
		3561
		3562	if (my $smooth = cf::face::find $info->{smooth}) {
		3563	cf::face::set_smooth $idx, $smooth;
		3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3565	} else {
		3566	error "smooth face '$info->{smooth}' not found for face '$face'";
		3567	}
		3568
		3569	cf::cede_to_tick;
		3570	}
		3571	}
		3572
		3573	{
		3574	my $anims = $facedata->{animinfo};
		3575
		3576	while (my ($anim, $info) = each %$anims) {
		3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3578	cf::cede_to_tick;
		3579	}
		3580
		3581	cf::anim::invalidate_all; # d'oh
		3582	}
		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
		3606	1
		3607	}
		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
		3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
		3632	load_resource_file "$MAPDIR/regions"
		3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
		3639	}
		3640
		3641	sub reload_facedata {
		3642	load_facedata "$DATADIR/facedata"
		3643	or die "unable to load facedata\n";
		3644	}
		3645
		3646	sub reload_archetypes {
		3647	load_resource_file "$DATADIR/archetypes"
		3648	or die "unable to load archetypes\n";
		3649	}
		3650
		3651	sub reload_treasures {
		3652	load_resource_file "$DATADIR/treasures"
		3653	or die "unable to load treasurelists\n";
		3654	}
		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
		3676	sub reload_resources {
		3677	trace "reloading resource files...\n";
		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
		3684	reload_regions;
		3685	reload_treasures;
		3686
		3687	trace "finished reloading resource files\n";
		3688	}
		3689
		3690	sub reload_config {
		3691	trace "reloading config file...\n";
		3692
		3693	my $config = load_file "$CONFDIR/config";
		3694	utf8::decode $config;
		3695	*CFG = decode_yaml $config;
		3696
		3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3698
		3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3701
		3702	if (exists $CFG{mlockall}) {
		3703	eval {
		3704	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3705	and die "WARNING: m(un)lockall failed: $!\n";
		3706	};
		3707	warn $@ if $@;
		3708	}
		3709	}
		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
		3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
		3749	# we must not ever block the main coroutine
		3750	$Coro::idle = sub {
		3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3752	(async {
		3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
		3755	})->prio (Coro::PRIO_MAX);
1819	);	3756	};
		3757
		3758	evthread_start IO::AIO::poll_fileno;
		3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
		3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
		3781	load_extensions;
		3782
		3783	utime time, time, $RUNTIMEFILE;
		3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
1820	}	3800	}
1821		3801
1822	#############################################################################	3802	#############################################################################
1823	# the server's main()	3803	# initialisation and cleanup
1824		3804
1825	sub cfg_load {	3805	# install some emergency cleanup handlers
1826	open my $fh, "<:utf8", cf::confdir . "/config"	3806	BEGIN {
		3807	our %SIGWATCHER = ();
		3808	for my $signal (qw(INT HUP TERM)) {
		3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3810	cf::cleanup "SIG$signal";
		3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1827	or return;	3826	or return;
1828		3827
1829	local $/;	3828	my $value = $cf::RUNTIME + 90 + 10;
1830	*CFG = YAML::Syck::Load <$fh>;	3829	# 10 is the runtime save interval, for a monotonic clock
1831	}	3830	# 60 allows for the watchdog to kill the server.
1832		3831
1833	sub main {	3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1834	# we must not ever block the main coroutine	3833	and return;
1835	local $Coro::idle = sub {	3834
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3835	# always fsync - this file is important
1837	(Coro::unblock_sub {	3836	aio_fsync $fh
1838	Event::one_event;	3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
		3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
		3901	}
		3902
		3903	sub emergency_save() {
		3904	my $freeze_guard = cf::freeze_mainloop;
		3905
		3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
		3912
		3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
		3916	# use a peculiar iteration method to avoid tripping on perl
		3917	# refcount bugs in for. also avoids problems with players
		3918	# and maps saved/destroyed asynchronously.
		3919	info "emergency_perl_save: begin player save\n";
		3920	for my $login (keys %cf::PLAYER) {
		3921	my $pl = $cf::PLAYER{$login} or next;
		3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3924	$pl->save;
		3925	}
		3926	info "emergency_perl_save: end player save\n";
		3927
		3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
		3931	for my $path (keys %cf::MAP) {
		3932	my $map = $cf::MAP{$path} or next;
		3933	$map->valid or next;
		3934	$map->save;
		3935	}
		3936	info "emergency_perl_save: end map save\n";
		3937
		3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
		3941	BDB::db_env_txn_checkpoint $DB_ENV;
		3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
1839	})->();	3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
1840	};	3966	};
1841		3967
1842	cfg_load;	3968	info "emergency_perl_save: leave\n";
1843	db_load;
1844	load_extensions;
1845	Event::loop;
1846	}	3969	}
1847		3970
1848	#############################################################################	3971	sub post_cleanup {
1849	# initialisation	3972	my ($make_core) = @_;
1850		3973
		3974	IO::AIO::flush;
		3975
		3976	error Carp::longmess "post_cleanup backtrace"
		3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
		4006	}
		4007
1851	sub reload() {	4008	sub do_reload_perl() {
1852	# can/must only be called in main	4009	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
1854	warn "can only reload from main coroutine\n";	4011	error "can only reload from main coroutine";
1855	return;	4012	return;
1856	}	4013	}
1857		4014
1858	warn "reloading...";	4015	return if $RELOAD++;
1859		4016
1860	local $FREEZE = 1;	4017	my $t1 = AE::time;
		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
		4025	cf::sync_job {
1861	cf::emergency_save;	4026	#cf::emergency_save;
1862		4027
1863	eval {	4028	trace "perl_reload: cancelling all extension coros";
1864	# if anything goes wrong in here, we should simply crash as we already saved
1865
1866	# cancel all watchers
1867	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}
1870
1871	# cancel all extension coros
1872	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	4030	%EXT_CORO = ();
1874		4031
1875	# unload all extensions	4032	trace "perl_reload: removing commands";
1876	for (@exts) {	4033	%COMMAND = ();
1877	warn "unloading <$_>";
1878	unload_extension $_;
1879	}
1880		4034
1881	# unload all modules loaded from $LIBDIR	4035	trace "perl_reload: removing ext/exti commands";
1882	while (my ($k, $v) = each %INC) {	4036	%EXTCMD = ();
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4037	%EXTICMD = ();
1884		4038
1885	warn "removing <$k>";	4039	trace "perl_reload: unloading/nuking all extensions";
1886	delete $INC{$k};	4040	for my $pkg (@EXTS) {
		4041	trace "... unloading $pkg";
1887		4042
1888	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;
1890
1891	if (my $cb = $k->can ("unload_module")) {	4043	if (my $cb = $pkg->can ("unload")) {
		4044	eval {
1892	$cb->();	4045	$cb->($pkg);
		4046	1
		4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
1893	}	4052	}
1894		4053
1895	Symbol::delete_package $k;	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4055	while (my ($k, $v) = each %INC) {
		4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4057
		4058	trace "... unloading $k";
		4059	delete $INC{$k};
		4060
		4061	$k =~ s/\.pm$//;
		4062	$k =~ s/\//::/g;
		4063
		4064	if (my $cb = $k->can ("unload_module")) {
		4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
1896	}	4069	}
1897		4070
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	4071	trace "perl_reload: getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		4074
1906	# remove register_script_function callbacks	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
1907	# TODO
1908
1909	# unload cf.pm "a bit"
1910	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
		4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1911		4078
1912	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
1913	# and global variables created in xs	4080	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
1915		4082
1916	# reload cf.pm	4083	info "perl_reload: unload completed, starting to reload now";
1917	warn "reloading cf.pm";	4084
		4085	trace "perl_reload: reloading cf.pm";
1918	require cf;	4086	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
1920		4088
1921	# load config and database again	4089	trace "perl_reload: loading config and database again";
1922	cf::cfg_load;	4090	cf::reload_config;
1923	cf::db_load;
1924		4091
1925	# load extensions	4092	trace "perl_reload: loading extensions";
1926	warn "load extensions";
1927	cf::load_extensions;	4093	cf::load_extensions;
1928		4094
1929	# reattach attachments to objects	4095	if ($REATTACH_ON_RELOAD) {
1930	warn "reattach";	4096	trace "perl_reload: reattaching attachments to objects/players";
1931	_global_reattach;	4097	_global_reattach; # objects, sockets
		4098	trace "perl_reload: reattaching attachments to maps";
		4099	reattach $_ for values %MAP;
		4100	trace "perl_reload: reattaching attachments to players";
		4101	reattach $_ for values %PLAYER;
		4102	}
		4103
		4104	cf::_post_init 1;
		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
		4108	1
		4109	} or do {
		4110	error $@;
		4111	cf::cleanup "perl_reload: error, exiting.";
		4112	};
		4113
		4114	--$RELOAD;
		4115	}
		4116
		4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
		4119	};
		4120
		4121	our $RELOAD_WATCHER; # used only during reload
		4122
		4123	sub reload_perl() {
		4124	# doing reload synchronously and two reloads happen back-to-back,
		4125	# coro crashes during coro_state_free->destroy here.
		4126
		4127	$RELOAD_WATCHER ||= cf::async {
		4128	Coro::AIO::aio_wait cache_extensions;
		4129
		4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4131	do_reload_perl;
		4132	undef $RELOAD_WATCHER;
		4133	};
1932	};	4134	};
1933
1934	if ($@) {
1935	warn $@;
1936	warn "error while reloading, exiting.";
1937	exit 1;
1938	}
1939
1940	warn "reloaded successfully";
1941	};
1942
1943	#############################################################################
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	4135	}
1985
1986	register "<global>", __PACKAGE__;
1987		4136
1988	register_command "reload" => sub {	4137	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
1990		4139
1991	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
		4144	reload_perl;
		4145	};
1995	}	4146	}
1996	};	4147	};
1997		4148
1998	unshift @INC, $LIBDIR;	4149	#############################################################################
1999		4150
2000	$TICK_WATCHER = Event->timer (	4151	my $bug_warning = 0;
2001	reentrant => 0,
2002	prio => 0,
2003	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,
2005	cb => sub {
2006	unless ($FREEZE) {
2007	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;
2009	}
2010		4152
2011	$NEXT_TICK += $TICK;	4153	sub wait_for_tick() {
		4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2012		4155
2013	# if we are delayed by four ticks or more, skip them all	4156	$WAIT_FOR_TICK->wait;
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4157	}
2015		4158
2016	$TICK_WATCHER->at ($NEXT_TICK);	4159	sub wait_for_tick_begin() {
2017	$TICK_WATCHER->start;	4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4161
		4162	my $signal = new Coro::Signal;
		4163	push @WAIT_FOR_TICK_BEGIN, $signal;
		4164	$signal->wait;
		4165	}
		4166
		4167	sub tick {
		4168	if ($Coro::current != $Coro::main) {
		4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4170	unless ++$bug_warning > 10;
		4171	return;
2018	},	4172	}
2019	);
2020		4173
2021	IO::AIO::max_poll_time $TICK * 0.2;	4174	cf::one_tick; # one server iteration
2022		4175
2023	Event->io (	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2024	fd => IO::AIO::poll_fileno,
2025	poll => 'r',
2026	prio => 5,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030		4177
2031	Event->timer (	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2032	data => WF_AUTOCANCEL,	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2033	after => 0,	4180	Coro::async_pool {
2034	interval => 10,	4181	$Coro::current->{desc} = "runtime saver";
2035	cb => sub {
2036	(Coro::unblock_sub {
2037	write_runtime	4182	write_runtime_sync
2038	or warn "ERROR: unable to write runtime file: $!";	4183	or error "ERROR: unable to write runtime file: $!";
2039	})->();	4184	};
2040	},	4185	}
2041	);	4186
		4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4188	$sig->send;
		4189	}
		4190	$WAIT_FOR_TICK->broadcast;
		4191
		4192	$LOAD = ($NOW - $TICK_START) / $TICK;
		4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4194
		4195	if (0) {
		4196	if ($NEXT_TICK) {
		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
		4201	}
		4202	}
		4203
		4204	{
		4205	# configure BDB
		4206
		4207	BDB::min_parallel 16;
		4208	BDB::max_poll_reqs $TICK * 0.1;
		4209	#$AnyEvent::BDB::WATCHER->priority (1);
		4210
		4211	unless ($DB_ENV) {
		4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4218
		4219	cf::sync_job {
		4220	eval {
		4221	BDB::db_env_open
		4222	$DB_ENV,
		4223	$BDBDIR,
		4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4226	0666;
		4227
		4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4229	};
		4230
		4231	cf::cleanup "db_env_open(db): $@" if $@;
		4232	};
		4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
		4244	}
		4245
		4246	{
		4247	# configure IO::AIO
		4248
		4249	IO::AIO::min_parallel 8;
		4250	IO::AIO::max_poll_time $TICK * 0.1;
		4251	undef $AnyEvent::AIO::WATCHER;
		4252	}
		4253
		4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
		4256
		4257	sub _log_backtrace {
		4258	my ($msg, @addr) = @_;
		4259
		4260	$msg =~ s/\n$//;
		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4265	# limit the # of concurrent backtraces
		4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
		4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
		4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
		4273	my @bt = fork_call {
		4274	@addr = map { sprintf "%x", $_ } @addr;
		4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4277	or die "addr2line: $!";
		4278
		4279	my @funcs;
		4280	my @res = <$fh>;
		4281	chomp for @res;
		4282	while (@res) {
		4283	my ($func, $line) = splice @res, 0, 2, ();
		4284	push @funcs, "[$func] $line";
		4285	}
		4286
		4287	@funcs
		4288	};
		4289
		4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4292	LOG llevInfo, "[ABT] $_\n" for @bt;
		4293	--$_log_backtrace;
		4294	};
		4295	} else {
		4296	LOG llevInfo, "[ABT] $msg\n";
		4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4298	}
		4299	}
		4300
		4301	# load additional modules
		4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
		4304
		4305	END { cf::emergency_save }
2042		4306
2043	1	4307	1
2044		4308

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