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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC vs.
Revision 1.609 by root, Tue Nov 20 14:30:22 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 ();
24	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
34		85
35	our %COMMAND = ();	86	our %COMMAND = ();
36	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
38		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	98	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
45	our $NOW;	144	our $NOW;
46		145
47	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
48		149
49	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		152
52	our %MAP; # all maps	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	154	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	155	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
57		165
58	binmode STDOUT;	166	binmode STDOUT;
59	binmode STDERR;	167	binmode STDERR;
60		168
61	# read virtual server time, if available	169	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
66	}	174	}
67		175
68	mkdir cf::localdir;	176	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		177
74	# a special map that is always available	178	mkdir $_
75	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
		181	our $EMERGENCY_POSITION;
		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
76		188
77	#############################################################################	189	#############################################################################
78		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
79	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
80		203
81	=over 4	204	=over 4
82		205
83	=item $cf::UPTIME	206	=item $cf::UPTIME
84		207
85	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
86		224
87	=item $cf::RUNTIME	225	=item $cf::RUNTIME
88		226
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	228	every server tick.
91		229
92	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		233
94	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
96		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
97	=item $cf::NOW	245	=item $cf::LOAD
98		246
99	The time of the last (current) server tick.	247	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		248
105	=item %cf::CFG	249	=item %cf::CFG
106		250
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	252	from wherever your confdir points to.
109		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
		289
110	=back	290	=back
111		291
112	=cut	292	=cut
113		293
114	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	301	my $msg = join "", @_;
117	utf8::encode $msg;
118		302
119	$msg .= "\n"	303	$msg .= "\n"
120	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
121		305
122	LOG llevError, "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	307
124	}	308	LOG llevWarn, $msg;
		309	};
		310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
125		324
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		332
133	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	334	# within the Safe compartment.
135	for my $pkg (qw(	335	for my $pkg (qw(
136	cf::global cf::attachable	336	cf::global cf::attachable
137	cf::object cf::object::player	337	cf::object cf::object::player
138	cf::client cf::player	338	cf::client cf::player
139	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
140	cf::map cf::party cf::region	341	cf::party cf::region
141	)) {	342	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	344	}
145		345
146	$Event::DIED = sub {	346	$EV::DIED = sub {
147	warn "error in event callback: @_";	347	warn "error in event callback: $@";
148	};	348	};
149		349
150	my %ext_pkg;	350	#############################################################################
151	my @exts;	351
152	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
153		356
154	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
155		358
156	=over 4	359	=over 4
157		360
158	=cut	361	=item dumpval $ref
159		362
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
161		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
162	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
163		437
164	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
165		439
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
174		441
175	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
176		443
177	=cut	444	=cut
178		445
179	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
181	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
182	}	467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
		511	}
		512
		513	=item cf::lock_wait $string
		514
		515	Wait until the given lock is available. See cf::lock_acquire.
		516
		517	=item my $lock = cf::lock_acquire $string
		518
		519	Wait until the given lock is available and then acquires it and returns
		520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		521	for example when the coroutine gets canceled), the lock is automatically
		522	returned.
		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
		527	Lock names should begin with a unique identifier (for example, cf::map::find
		528	uses map_find and cf::map::load uses map_load).
		529
		530	=item $locked = cf::lock_active $string
		531
		532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
		537
		538	sub lock_wait($) {
		539	$LOCKS->wait ($_[0]);
		540	}
		541
		542	sub lock_acquire($) {
		543	$LOCKS->guard ($_[0])
		544	}
		545
		546	sub lock_active($) {
		547	$LOCKS->count ($_[0]) < 1
		548	}
		549
		550	sub freeze_mainloop {
		551	tick_inhibit_inc;
		552
		553	&Guard::guard (\&tick_inhibit_dec);
		554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
		639	}
		640
		641	=item cf::async { BLOCK }
		642
		643	Currently the same as Coro::async_pool, meaning you cannot use
		644	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		645	thing you are allowed to do is call C<prio> on it.
		646
		647	=cut
		648
		649	BEGIN { *async = \&Coro::async_pool }
183		650
184	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
185		652
186	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
187	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
189		657
190	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
191	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
192	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
193	fast or be very important.	661	fast or be very important.
…		…
195	=cut	663	=cut
196		664
197	sub sync_job(&) {	665	sub sync_job(&) {
198	my ($job) = @_;	666	my ($job) = @_;
199		667
		668	if (in_main) {
		669	my $time = AE::time;
		670
		671	# this is the main coro, too bad, we have to block
		672	# till the operation succeeds, freezing the server :/
		673
		674	#LOG llevError, Carp::longmess "sync job";#d#
		675
		676	my $freeze_guard = freeze_mainloop;
		677
200	my $busy = 1;	678	my $busy = 1;
201	my @res;	679	my @res;
202		680
203	# TODO: use suspend/resume instead	681	(async {
204	local $FREEZE = 1;	682	$Coro::current->desc ("sync job coro");
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };	683	@res = eval { $job->() };
208	warn $@ if $@;	684	error $@ if $@;
209	undef $busy;	685	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {
213	$coro->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
		687
214	while ($busy) {	688	while ($busy) {
		689	if (Coro::nready) {
215	Coro::cede_notself;	690	Coro::cede_notself;
216	Event::one_event unless Coro::nready;	691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
217	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
		699
		700	wantarray ? @res : $res[0]
218	} else {	701	} else {
219	$coro->join;	702	# we are in another coroutine, how wonderful, everything just works
		703
		704	$job->()
220	}	705	}
221
222	wantarray ? @res : $res[0]
223	}	706	}
224		707
225	=item $coro = cf::coro { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
226		709
227	Creates and returns a new coro. This coro is automcatially being canceled	710	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	711	extension calling this is being unloaded.
229		712
230	=cut	713	=cut
231		714
232	sub coro(&) {	715	sub async_ext(&) {
233	my $cb = shift;	716	my $cb = shift;
234		717
235	my $coro; $coro = async {	718	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		719
242	$coro->on_destroy (sub {	720	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	721	delete $EXT_CORO{$coro+0};
244	});	722	});
245	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
246		724
247	$coro	725	$coro
248	}	726	}
249		727
250	sub write_runtime {	728	=item fork_call { }, @args
251	my $runtime = cf::localdir . "/runtime";
252		729
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
254	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
255		734
256	my $value = $cf::RUNTIME;	735	=cut
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;
259		736
260	aio_fsync $fh	737	sub post_fork {
261	and return;	738	reset_signals;
		739	}
262		740
263	close $fh	741	sub fork_call(&@) {
264	or return;	742	my ($cb, @args) = @_;
265		743
266	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
267	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
268		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
269	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
270	}	927	}
271		928
272	=back	929	=back
273		930
274	=cut	931	=cut
275		932
276	#############################################################################	933	#############################################################################
277		934
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287	$self->{random} = cf::from_json $data;
288	} else {
289	if ($path =~ s{^~([^/]+)?}{}) {
290	$self->{user_rel} = 1;
291
292	if (defined $1) {
293	$self->{user} = $1;
294	} elsif ($base =~ m{^~([^/]+)/}) {
295	$self->{user} = $1;
296	} else {
297	warn "cannot resolve user-relative path without user <$path,$base>\n";
298	}
299	} elsif ($path =~ /^\//) {
300	# already absolute
301	} else {
302	$base =~ s{[^/]+/?$}{};
303	return $class->new ("$base/$path");
304	}
305
306	for ($path) {
307	redo if s{/\.?/}{/};
308	redo if s{/[^/]+/\.\./}{/};
309	}
310	}
311
312	$self->{path} = $path;
313
314	$self
315	}
316
317	# the name / primary key / in-game path
318	sub as_string {
319	my ($self) = @_;
320
321	$self->{user_rel} ? "~$self->{user}$self->{path}"
322	: $self->{random} ? "?random/$self->{path}"
323	: $self->{path}
324	}
325
326	# the displayed name, this is a one way mapping
327	sub visible_name {
328	my ($self) = @_;
329
330	# if (my $rmp = $self->{random}) {
331	# # todo: be more intelligent about this
332	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
333	# } else {
334	$self->as_string
335	# }
336	}
337
338	# escape the /'s in the path
339	sub _escaped_path {
340	# ∕ is U+2215
341	(my $path = $_[0]{path}) =~ s/\//∕/g;
342	$path
343	}
344
345	# the original (read-only) location
346	sub load_path {
347	my ($self) = @_;
348
349	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
350	}
351
352	# the temporary/swap location
353	sub save_path {
354	my ($self) = @_;
355
356	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
357	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
358	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
359	}
360
361	# the unique path, might be eq to save_path
362	sub uniq_path {
363	my ($self) = @_;
364
365	$self->{user_rel} || $self->{random}
366	? undef
367	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
368	}
369
370	# return random map parameters, or undef
371	sub random_map_params {
372	my ($self) = @_;
373
374	$self->{random}
375	}
376
377	# this is somewhat ugly, but style maps do need special treatment
378	sub is_style_map {
379	$_[0]{path} =~ m{^/styles/}
380	}
381
382	package cf;
383
384	#############################################################################
385
386	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
387		936
388	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
389	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
390	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
391		940
392	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
393	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
394	crossfire+).	943	Deliantra).
395		944
396	=over 4	945	=over 4
397		946
398	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
399		948
…		…
443	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
444		993
445	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
446	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
447		996
448	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
449	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
450		999
451	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
452		1001
453	=over 4	1002	=over 4
…		…
513	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
514	our @CB_MAP = ();	1063	our @CB_MAP = ();
515		1064
516	my %attachment;	1065	my %attachment;
517		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
518	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
519	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
520		1075
521	use sort 'stable';	1076	use sort 'stable';
522		1077
…		…
556	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
557		1112
558	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
559	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
560	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
561	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
562		1117
563	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
564	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
565		1120
566	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
571		1126
572	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
573	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
574		1129
575	} elsif (ref $type) {	1130	} elsif (ref $type) {
576	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
577		1132
578	} else {	1133	} else {
579	shift @arg;	1134	shift @arg;
580	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
581	}	1136	}
582	}	1137	}
583	}	1138	}
584		1139
585	sub _object_attach {	1140	sub _object_attach {
…		…
595	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
596	}	1151	}
597		1152
598	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
599	} else {	1154	} else {
600	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
601	}	1156	}
602		1157
603	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
604	}	1159	}
605		1160
…		…
607	if (ref $_[0]) {	1162	if (ref $_[0]) {
608	_object_attach @_;	1163	_object_attach @_;
609	} else {	1164	} else {
610	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
611	}	1166	}
		1167	_recalc_want;
612	};	1168	};
613		1169
614	# all those should be optimised	1170	# all those should be optimised
615	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
616	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
619	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
620	reattach ($obj);	1176	reattach ($obj);
621	} else {	1177	} else {
622	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
623	}	1179	}
		1180	_recalc_want;
624	};	1181	};
625		1182
626	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
627	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
628		1185
…		…
643	";	1200	";
644	die if $@;	1201	die if $@;
645	}	1202	}
646		1203
647	our $override;	1204	our $override;
648	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
649		1206
650	sub override {	1207	sub override {
651	$override = 1;	1208	$override = 1;
652	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
653	}	1210	}
654		1211
655	sub do_invoke {	1212	sub do_invoke {
656	my $event = shift;	1213	my $event = shift;
657	my $callbacks = shift;	1214	my $callbacks = shift;
658		1215
659	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
660		1217
661	local $override;	1218	local $override;
662		1219
663	for (@$callbacks) {	1220	for (@$callbacks) {
664	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
665		1222
666	if ($@) {	1223	if ($@) {
667	warn "$@";
668	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
669	override;	1225	override;
670	}	1226	}
671		1227
672	return 1 if $override;	1228	return 1 if $override;
673	}	1229	}
674		1230
675	0	1231	0
676	}	1232	}
677		1233
678	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
679		1235
680	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
681		1237
682	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
683		1239
684	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
685	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
686	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
687		1243
688	=back	1244	=back
689		1245
690	=cut	1246	=cut
691		1247
692	#############################################################################	1248	#############################################################################
693	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
694		1292
695	sub reattach {	1293	sub reattach {
696	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
697	my ($obj) = @_;	1295	my ($obj) = @_;
		1296
		1297	# no longer needed after getting rid of delete_package?
		1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
698		1299
699	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
700		1301
701	@$registry = ();	1302	@$registry = ();
702		1303
…		…
707	for (@$attach) {	1308	for (@$attach) {
708	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
709	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
710	}	1311	}
711	} else {	1312	} else {
712	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
713	}	1314	}
714	}	1315	}
715	}	1316	}
716		1317
717	cf::attachable->attach (	1318	cf::attachable->attach (
718	prio => -1000000,	1319	prio => -1000000,
719	on_instantiate => sub {	1320	on_instantiate => sub {
720	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
721		1322
722	$data = from_json $data;	1323	$data = decode_json $data;
723		1324
724	for (@$data) {	1325	for (@$data) {
725	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
726		1327
727	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
743	sub object_freezer_save {	1344	sub object_freezer_save {
744	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
745		1346
746	sync_job {	1347	sync_job {
747	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
748	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
749	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
750		1353
751	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
752	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
753	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
754	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
755	close $fh;	1361	aio_close $fh;
756		1362
757	if (@$objs) {	1363	if (@$objs) {
758	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
759	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
760	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
761	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
762	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
763	close $fh;	1372	aio_close $fh;
764	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
765	}	1374	}
766	} else {	1375	} else {
767	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
768	}	1377	}
769		1378
770	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
771	} else {	1383	} else {
772	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
773	}	1385	}
774	} else {	1386	} else {
775	aio_unlink $filename;	1387	aio_unlink $filename;
776	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
777	}	1389	}
778	}	1390	};
779	}	1391	}
780		1392
781	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
782	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
783		1395
…		…
795	or return;	1407	or return;
796		1408
797	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
798	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
799	or return;	1411	or return;
		1412
800	$av = eval { (Storable::thaw <$av>)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
801	}	1415	}
802		1416
		1417	utf8::decode (my $decname = $filename);
		1418	trace sprintf "loading %s (%d,%d)\n",
		1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
803	return ($data, $av);	1422	($data, $av)
804	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
805		1430
806	#############################################################################	1431	#############################################################################
807	# command handling &c	1432	# command handling &c
808		1433
809	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
810		1435
811	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
812	$name.	1437	$name.
813		1438
814	=cut	1439	=cut
…		…
820	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
821		1446
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1448	}
824		1449
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
826		1451
827	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
828		1457
829	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
830	called.
831		1459
832	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
833		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
834	sub register_extcmd {	1482	sub register_extcmd($$) {
835	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
836		1484
837	my $caller = caller;
838	#warn "registering extcmd '$name' to '$caller'";
839
840	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
841	}	1486	}
		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
842		1507
843	cf::player->attach (	1508	cf::player->attach (
844	on_command => sub {	1509	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
846		1511
847	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
848	or return;	1513	or return;
849		1514
…		…
854	cf::override;	1519	cf::override;
855	},	1520	},
856	on_extcmd => sub {	1521	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
858		1523
859	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1525
861	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
863	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
864	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
865	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
866	}	1547	}
		1548
867	} else {	1549	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1551	}
870		1552
871	cf::override;	1553	cf::override;
872	},	1554	},
873	);	1555	);
874		1556
875	sub register {	1557	# "readahead" all extensions
876	my ($base, $pkg) = @_;
877
878	#TODO
879	}
880
881	sub load_extension {	1558	sub cache_extensions {
882	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
883		1560
884	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
885	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
886	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
887	$pkg =~ s/[^[:word:]]/_/g;
888	$pkg = "ext::$pkg";
889
890	warn "loading '$path' into '$pkg'\n";
891
892	open my $fh, "<:utf8", $path
893	or die "$path: $!";
894
895	my $source =
896	"package $pkg; use strict; use utf8;\n"
897	. "#line 1 \"$path\"\n{\n"
898	. (do { local $/; <$fh> })
899	. "\n};\n1";
900
901	eval $source
902	or die $@ ? "$path: $@\n"
903	: "extension disabled.\n";
904
905	push @exts, $pkg;
906	$ext_pkg{$base} = $pkg;
907
908	# no strict 'refs';
909	# @{"$pkg\::ISA"} = ext::;
910
911	register $base, $pkg;
912	}
913
914	sub unload_extension {
915	my ($pkg) = @_;
916
917	warn "removing extension $pkg\n";
918
919	# remove hooks
920	#TODO
921	# for my $idx (0 .. $#PLUGIN_EVENT) {
922	# delete $hook[$idx]{$pkg};
923	# }
924
925	# remove commands
926	for my $name (keys %COMMAND) {
927	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
928
929	if (@cb) {
930	$COMMAND{$name} = \@cb;
931	} else {
932	delete $COMMAND{$name};
933	}	1564	}
934	}	1565	};
935		1566
936	# remove extcmds	1567	$grp
937	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1568	}
938	delete $EXTCMD{$name};
939	}
940		1569
941	if (my $cb = $pkg->can ("unload")) {	1570	sub _ext_cfg_reg($$$$) {
942	eval {	1571	my ($rvar, $varname, $cfgname, $default) = @_;
943	$cb->($pkg);
944	1
945	} or warn "$pkg unloaded, but with errors: $@";
946	}
947		1572
948	Symbol::delete_package $pkg;	1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
949	}	1579	}
950		1580
951	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
952	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
953	next unless -r $ext;	1590	next unless -r $path;
954	eval {	1591
955	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
956	1	1664	}
957	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
958	}	1677	};
959	}	1678	}
960		1679
961	#############################################################################	1680	#############################################################################
962	# load/save/clean perl data associated with a map
963		1681
964	*cf::mapsupport::on_clean = sub {	1682	=back
		1683
		1684	=head2 CORE EXTENSIONS
		1685
		1686	Functions and methods that extend core deliantra objects.
		1687
		1688	=cut
		1689
		1690	package cf::player;
		1691
		1692	use Coro::AIO;
		1693
		1694	=head3 cf::player
		1695
		1696	=over 4
		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
		1712	=item cf::player::find $login
		1713
		1714	Returns the given player object, loading it if necessary (might block).
		1715
		1716	=cut
		1717
		1718	sub playerdir($) {
		1719	"$PLAYERDIR/"
		1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1721	}
		1722
		1723	sub path($) {
		1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1725
		1726	(playerdir $login) . "/playerdata"
		1727	}
		1728
		1729	sub find_active($) {
		1730	$cf::PLAYER{$_[0]}
		1731	and $cf::PLAYER{$_[0]}->active
		1732	and $cf::PLAYER{$_[0]}
		1733	}
		1734
		1735	sub exists($) {
965	my ($map) = @_;	1736	my ($login) = @_;
966		1737
967	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
968	defined $path or return;	1739	or !aio_stat path $login
969
970	unlink "$path.pst";
971	};
972
973	cf::map->attach (prio => -10000, package => cf::mapsupport::);
974
975	#############################################################################
976	# load/save perl data associated with player->ob objects
977
978	sub all_objects(@) {
979	@_, map all_objects ($_->inv), @_
980	}	1740	}
981		1741
982	# TODO: compatibility cruft, remove when no longer needed	1742	sub find($) {
		1743	return $cf::PLAYER{$_[0]} || do {
		1744	my $login = $_[0];
		1745
		1746	my $guard = cf::lock_acquire "user_find:$login";
		1747
		1748	$cf::PLAYER{$_[0]} || do {
		1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
		1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
		1764	$cf::PLAYER{$login} = $pl
		1765	}
		1766	}
		1767	}
		1768
983	cf::player->attach (	1769	cf::player->attach (
984	on_load => sub {	1770	on_load => sub {
985	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
986		1772
987	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
988	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
989	$o->set_ob_key_value ("_perl_data");
990		1775
991	%$o = %{ Storable::thaw pack "H*", $value };	1776	$pl->ob->current_weapon ($slots->[0]);
992	}	1777	$pl->combat_ob ($slots->[1]);
993	}	1778	$pl->ranged_ob ($slots->[2]);
994	},	1779	},
995	);	1780	);
996		1781
997	#############################################################################	1782	sub save($) {
		1783	my ($pl) = @_;
998		1784
999	=head2 CORE EXTENSIONS	1785	return if $pl->{deny_save};
1000		1786
1001	Functions and methods that extend core crossfire objects.	1787	my $path = path $pl;
		1788	my $guard = cf::lock_acquire "user_save:$path";
1002		1789
1003	=head3 cf::player	1790	return if $pl->{deny_save};
		1791
		1792	aio_mkdir playerdir $pl, 0770;
		1793	$pl->{last_save} = $cf::RUNTIME;
		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
		1800	$pl->save_pl ($path);
		1801	cf::cede_to_tick;
		1802	}
		1803
		1804	sub new($) {
		1805	my ($login) = @_;
		1806
		1807	my $self = create;
		1808
		1809	$self->ob->name ($login);
		1810	$self->{deny_save} = 1;
		1811
		1812	$cf::PLAYER{$login} = $self;
		1813
		1814	$self
		1815	}
		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
		1827	=item $pl->quit_character
		1828
		1829	Nukes the player without looking back. If logged in, the connection will
		1830	be destroyed. May block for a long time.
		1831
		1832	=cut
		1833
		1834	sub quit_character {
		1835	my ($pl) = @_;
		1836
		1837	my $name = $pl->ob->name;
		1838
		1839	$pl->{deny_save} = 1;
		1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1841
		1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
		1849	$pl->ns->destroy if $pl->ns;
		1850
		1851	my $path = playerdir $pl;
		1852	my $temp = "$path~$cf::RUNTIME~deleting~";
		1853	aio_rename $path, $temp;
		1854	delete $cf::PLAYER{$pl->ob->name};
		1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
		1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
		1877	}
		1878
		1879	=item cf::player::list_logins
		1880
		1881	Returns am arrayref of all valid playernames in the system, can take a
		1882	while and may block, so not sync_job-capable, ever.
		1883
		1884	=cut
		1885
		1886	sub list_logins {
		1887	my $dirs = aio_readdir $PLAYERDIR
		1888	or return [];
		1889
		1890	my @logins;
		1891
		1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
		1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1899	aio_read $fh, 0, 512, my $buf, 0 or next;
		1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
		1902
		1903	utf8::decode $login;
		1904	push @logins, $login;
		1905	}
		1906
		1907	\@logins
		1908	}
		1909
		1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
		1913
		1914	Returns an arrayref of map paths that are private for this
		1915	player. May block.
		1916
		1917	=cut
		1918
		1919	sub maps($) {
		1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
		1923
		1924	my $files = aio_readdir playerdir $pl
		1925	or return;
		1926
		1927	my @paths;
		1928
		1929	for (@$files) {
		1930	utf8::decode $_;
		1931	next if /\.(?:pl|pst)$/;
		1932	next unless /^$PATH_SEP/o;
		1933
		1934	push @paths, cf::map::normalise "~$pl/$_";
		1935	}
		1936
		1937	\@paths
		1938	}
		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
		1944	=item $player->ext_msg ($type, @msg)
		1945
		1946	Sends an ext event to the client.
		1947
		1948	=cut
		1949
		1950	sub ext_msg($$@) {
		1951	my ($self, $type, @msg) = @_;
		1952
		1953	$self->ns->ext_msg ($type, @msg);
		1954	}
		1955
		1956	=head3 cf::region
1004		1957
1005	=over 4	1958	=over 4
1006		1959
1007	=item cf::player::exists $login
1008
1009	Returns true when the given account exists.
1010
1011	=cut	1960	=cut
1012		1961
1013	sub cf::player::exists($) {	1962	package cf::region;
1014	cf::player::find $_[0]
1015	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1016	}
1017		1963
1018	=item $player->ext_reply ($msgid, $msgtype, %msg)	1964	=item cf::region::find_by_path $path
1019		1965
1020	Sends an ext reply to the player.	1966	Tries to decuce the likely region for a map knowing only its path.
1021		1967
1022	=cut	1968	=cut
1023		1969
1024	sub cf::player::ext_reply($$$%) {	1970	sub find_by_path($) {
		1971	my ($path) = @_;
		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
		1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
		1985	}
		1986
		1987	=back
		1988
		1989	=head3 cf::map
		1990
		1991	=over 4
		1992
		1993	=cut
		1994
		1995	package cf::map;
		1996
		1997	use Fcntl;
		1998	use Coro::AIO;
		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
		2004	our $MAX_RESET = 3600;
		2005	our $DEFAULT_RESET = 3000;
		2006
		2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
1025	my ($self, $id, %msg) = @_;	2036	my ($self, $merge) = @_;
1026		2037
1027	$msg{msgid} = $id;	2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
1028		2041
1029	$self->send ("ext " . to_json \%msg);	2042	$self->SUPER::thawer_merge ($merge);
1030	}	2043	}
		2044
		2045	sub normalise {
		2046	my ($path, $base) = @_;
		2047
		2048	$path = "$path"; # make sure it's a string
		2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
		2077	$path
		2078	}
		2079
		2080	sub new_from_path {
		2081	my (undef, $path, $base) = @_;
		2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
		2102	my ($self) = @_;
		2103
		2104	$self
		2105	}
		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
		2157	sub load_header_from($) {
		2158	my ($self, $path) = @_;
		2159
		2160	utf8::encode $path;
		2161	my $f = new_from_file cf::object::thawer $path
		2162	or return;
		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
		2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
		2217	or return;
		2218	$self->prepare_orig;
		2219	}
		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
		2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
		2227	1
		2228	}
		2229
		2230	sub find;
		2231	sub find {
		2232	my ($path, $origin) = @_;
		2233
		2234	cf::cede_to_tick;
		2235
		2236	$path = normalise $path, $origin;
		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2239	my $guard2 = cf::lock_acquire "map_find:$path";
		2240
		2241	$cf::MAP{$path} || do {
		2242	my $map = new_from_path cf::map $path
		2243	or return;
		2244
		2245	$map->{last_save} = $cf::RUNTIME;
		2246
		2247	$map->load_header
		2248	or return;
		2249
		2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
		2255	$map->reset;
		2256	return find $path;
		2257	}
		2258
		2259	$cf::MAP{$path} = $map
		2260	}
		2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
		2265
		2266	sub load {
		2267	my ($self) = @_;
		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
		2271	my $path = $self->{path};
		2272
		2273	{
		2274	my $guard = cf::lock_acquire "map_data:$path";
		2275
		2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
		2278
		2279	$self->alloc;
		2280
		2281	$self->pre_load;
		2282	cf::cede_to_tick;
		2283
		2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
		2288	or return;
		2289
		2290	$self->post_load_original
		2291	if delete $self->{load_original};
		2292
		2293	if (my $uniq = $self->uniq_path) {
		2294	utf8::encode $uniq;
		2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
		2297	$self->clear_unique_items;
		2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
		2302	}
		2303
		2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
		2313	# now do the right thing for maps
		2314	$self->link_multipart_objects;
		2315	$self->difficulty ($self->estimate_difficulty)
		2316	unless $self->difficulty;
		2317	cf::cede_to_tick;
		2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
		2329	}
		2330
		2331	$self->post_load;
		2332
		2333	1
		2334	}
		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
		2341
		2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
		2348	$self
		2349	}
		2350
		2351	sub find_sync {
		2352	my ($path, $origin) = @_;
		2353
		2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
		2359	}
		2360
		2361	sub do_load_sync {
		2362	my ($map) = @_;
		2363
		2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
		2369	}
		2370
		2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
		2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
		2388	while (%MAP_PREFETCH) {
		2389	while (my ($k, $v) = each %MAP_PREFETCH) {
		2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
		2394	delete $MAP_PREFETCH{$k};
		2395	}
		2396	}
		2397	undef $MAP_PREFETCHER;
		2398	};
		2399	$MAP_PREFETCHER->prio (6);
		2400
		2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2433	}
		2434	}
		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
		2444	sub swap_out {
		2445	my ($self) = @_;
		2446
		2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
		2451	return if $self->players;
		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
		2462	$self->clear;
		2463	}
		2464
		2465	sub reset_at {
		2466	my ($self) = @_;
		2467
		2468	# TODO: safety, remove and allow resettable per-player maps
		2469	return 1e99 if $self->{deny_reset};
		2470
		2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2473
		2474	$time + $to
		2475	}
		2476
		2477	sub should_reset {
		2478	my ($self) = @_;
		2479
		2480	$self->reset_at <= $cf::RUNTIME
		2481	}
		2482
		2483	sub reset {
		2484	my ($self) = @_;
		2485
		2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2487
		2488	return if $self->players;
		2489
		2490	cf::trace "resetting map ", $self->path, "\n";
		2491
		2492	$self->state (cf::MAP_SWAPPED);
		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
		2501
		2502	delete $cf::MAP{$self->path};
		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
		2507
		2508	$self->unlink_save;
		2509	$self->destroy;
		2510	}
		2511
		2512	my $nuke_counter = "aaaa";
		2513
		2514	sub nuke {
		2515	my ($self) = @_;
		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
		2520	delete $cf::MAP{$self->path};
		2521
		2522	$self->unlink_save;
		2523
		2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
		2526	$self->{deny_save} = 1;
		2527	$self->reset_timeout (1);
		2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
		2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
		2570	}
		2571
		2572	=item cf::map::unique_maps
		2573
		2574	Returns an arrayref of paths of all shared maps that have
		2575	instantiated unique items. May block.
		2576
		2577	=cut
		2578
		2579	sub unique_maps() {
		2580	[
		2581	map {
		2582	utf8::decode $_;
		2583	s/\.map$//; # TODO future compatibility hack
		2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
		2590
		2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
		2622
		2623	=back
		2624
		2625	=head3 cf::object
		2626
		2627	=cut
		2628
		2629	package cf::object;
		2630
		2631	=over 4
		2632
		2633	=item $ob->inv_recursive
		2634
		2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
		2637
		2638	=cut
		2639
		2640	sub inv_recursive_;
		2641	sub inv_recursive_ {
		2642	map { $_, inv_recursive_ $_->inv } @_
		2643	}
		2644
		2645	sub inv_recursive {
		2646	inv_recursive_ inv $_[0]
		2647	}
		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
		2677	package cf;
1031		2678
1032	=back	2679	=back
1033		2680
1034	=head3 cf::object::player	2681	=head3 cf::object::player
1035		2682
…		…
1040	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1041	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1042	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1043		2690
1044	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1045		2706
1046	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1047	# with dialog boxes.	2708	# with dialog boxes.
1048	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1049	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1051		2712
1052	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1053		2714
1054	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1055	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1056	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1057	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1058	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1059	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1060	}	2740	}
1061		2741
1062	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1063		2743
1064	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1073	(ref $cf::CFG{"may_$access"}	2753	(ref $cf::CFG{"may_$access"}
1074	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2754	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075	: $cf::CFG{"may_$access"})	2755	: $cf::CFG{"may_$access"})
1076	}	2756	}
1077		2757
		2758	=item $player_object->enter_link
		2759
		2760	Freezes the player and moves him/her to a special map (C<{link}>).
		2761
		2762	The player should be reasonably safe there for short amounts of time (e.g.
		2763	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2764	though, as the player cannot control the character while it is on the link
		2765	map.
		2766
		2767	Will never block.
		2768
		2769	=item $player_object->leave_link ($map, $x, $y)
		2770
		2771	Moves the player out of the special C<{link}> map onto the specified
		2772	map. If the map is not valid (or omitted), the player will be moved back
		2773	to the location he/she was before the call to C<enter_link>, or, if that
		2774	fails, to the emergency map position.
		2775
		2776	Might block.
		2777
		2778	=cut
		2779
		2780	sub link_map {
		2781	unless ($LINK_MAP) {
		2782	$LINK_MAP = cf::map::find "{link}"
		2783	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2784	$LINK_MAP->load;
		2785	}
		2786
		2787	$LINK_MAP
		2788	}
		2789
		2790	sub cf::object::player::enter_link {
		2791	my ($self) = @_;
		2792
		2793	$self->deactivate_recursive;
		2794
		2795	++$self->{_link_recursion};
		2796
		2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2798
		2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2800	if $self->map && $self->map->{path} ne "{link}";
		2801
		2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
		2803	}
		2804
		2805	sub cf::object::player::leave_link {
		2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
		2809
		2810	my $link_pos = delete $self->{_link_pos};
		2811
		2812	unless ($map) {
		2813	# restore original map position
		2814	($map, $x, $y) = @{ $link_pos || [] };
		2815	$map = cf::map::find $map;
		2816
		2817	unless ($map) {
		2818	($map, $x, $y) = @$EMERGENCY_POSITION;
		2819	$map = cf::map::find $map
		2820	or die "FATAL: cannot load emergency map\n";
		2821	}
		2822	}
		2823
		2824	($x, $y) = (-1, -1)
		2825	unless (defined $x) && (defined $y);
		2826
		2827	# use -1 or undef as default coordinates, not 0, 0
		2828	($x, $y) = ($map->enter_x, $map->enter_y)
		2829	if $x <= 0 && $y <= 0;
		2830
		2831	$map->load;
		2832
		2833	return unless $self->contr->active;
		2834
		2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2836	if ($self->enter_map ($map, $x, $y)) {
		2837	# entering was successful
		2838	delete $self->{_link_recursion};
		2839	# only activate afterwards, to support waiting in hooks
		2840	$self->activate_recursive;
		2841	}
		2842
		2843	}
		2844
		2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
		2846
		2847	Moves the player to the given map-path and coordinates by first freezing
		2848	her, loading and preparing them map, calling the provided $check callback
		2849	that has to return the map if sucecssful, and then unfreezes the player on
		2850	the new (success) or old (failed) map position. In either case, $done will
		2851	be called at the end of this process.
		2852
		2853	Note that $check will be called with a potentially non-loaded map, so if
		2854	it needs a loaded map it has to call C<< ->load >>.
		2855
		2856	=cut
		2857
		2858	our $GOTOGEN;
		2859
		2860	sub cf::object::player::goto {
		2861	my ($self, $path, $x, $y, $check, $done) = @_;
		2862
		2863	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2864	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2865	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2866	($path, $x, $y) = @$EMERGENCY_POSITION;
		2867	}
		2868
		2869	# do generation counting so two concurrent goto's will be executed in-order
		2870	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2871
		2872	$self->enter_link;
		2873
		2874	(async {
		2875	$Coro::current->{desc} = "player::goto $path $x $y";
		2876
		2877	# *tag paths override both path and x|y
		2878	if ($path =~ /^\*(.*)$/) {
		2879	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2880	my $ob = $obs[rand @obs];
		2881
		2882	# see if we actually can go there
		2883	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2884	$ob = $obs[rand @obs];
		2885	} else {
		2886	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888	# else put us there anyways for now #d#
		2889
		2890	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2891	} else {
		2892	($path, $x, $y) = (undef, undef, undef);
		2893	}
		2894	}
		2895
		2896	my $map = eval {
		2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
		2900	$map = $map->customise_for ($self);
		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
		2902	} else {
		2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
		2905
		2906	$map
		2907	};
		2908
		2909	if ($@) {
		2910	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2911	LOG llevError | logBacktrace, Carp::longmess $@;
		2912	}
		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
		2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
		2920	})->prio (1);
		2921	}
		2922
		2923	=item $player_object->enter_exit ($exit_object)
		2924
		2925	=cut
		2926
		2927	sub parse_random_map_params {
		2928	my ($spec) = @_;
		2929
		2930	my $rmp = { # defaults
		2931	xsize => (cf::rndm 15, 40),
		2932	ysize => (cf::rndm 15, 40),
		2933	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2934	#layout => string,
		2935	};
		2936
		2937	for (split /\n/, $spec) {
		2938	my ($k, $v) = split /\s+/, $_, 2;
		2939
		2940	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2941	}
		2942
		2943	$rmp
		2944	}
		2945
		2946	sub prepare_random_map {
		2947	my ($exit) = @_;
		2948
		2949	# all this does is basically replace the /! path by
		2950	# a new random map path (?random/...) with a seed
		2951	# that depends on the exit object
		2952
		2953	my $rmp = parse_random_map_params $exit->msg;
		2954
		2955	if ($exit->map) {
		2956	$rmp->{region} = $exit->region->name;
		2957	$rmp->{origin_map} = $exit->map->path;
		2958	$rmp->{origin_x} = $exit->x;
		2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
		2962	}
		2963
		2964	$rmp->{random_seed} ||= $exit->random_seed;
		2965
		2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2967	my $md5 = Digest::MD5::md5_hex $data;
		2968	my $meta = "$RANDOMDIR/$md5.meta";
		2969
		2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2971	aio_write $fh, 0, (length $data), $data, 0;
		2972	undef $fh;
		2973	aio_rename "$meta~", $meta;
		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
		2978	$exit->slaying ("?random/$md5");
		2979	$exit->msg (undef);
		2980	}
		2981	}
		2982	}
		2983
		2984	sub cf::object::player::enter_exit {
		2985	my ($self, $exit) = @_;
		2986
		2987	return unless $self->type == cf::PLAYER;
		2988
		2989	$self->enter_link;
		2990
		2991	(async {
		2992	$Coro::current->{desc} = "enter_exit";
		2993
		2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
		2996
		2997	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2998	my $x = $exit->stats->hp;
		2999	my $y = $exit->stats->sp;
		3000
		3001	# special map handling
		3002	my $slaying = $exit->slaying;
		3003
		3004	# special map handling
		3005	if ($slaying eq "/!") {
		3006	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3007
		3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
		3011	$map = $exit->slaying;
		3012
		3013	} elsif ($slaying eq '!up') {
		3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
		3017
		3018	} elsif ($slaying eq '!down') {
		3019	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3020	$x = $exit->x;
		3021	$y = $exit->y;
		3022	}
		3023
		3024	$self->goto ($map, $x, $y);
		3025
		3026	# if exit is damned, update players death & WoR home-position
		3027	$self->contr->savebed ($map, $x, $y)
		3028	if $exit->flag (cf::FLAG_DAMNED);
		3029
		3030	1
		3031	}) {
		3032	$self->message ("Something went wrong deep within the deliantra server. "
		3033	. "I'll try to bring you back to the map you were before. "
		3034	. "Please report this to the dungeon master!",
		3035	cf::NDI_UNIQUE | cf::NDI_RED);
		3036
		3037	error "ERROR in enter_exit: $@";
		3038	$self->leave_link;
		3039	}
		3040	})->prio (1);
		3041	}
		3042
1078	=head3 cf::client	3043	=head3 cf::client
1079		3044
1080	=over 4	3045	=over 4
1081		3046
1082	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1083		3048
1084	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1085	should not be used under normal circumstances.	3050	them as required.
1086		3051
1087	=cut	3052	=cut
1088		3053
		3054	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3055
		3056	sub cf::client::send_big_packet {
		3057	my ($self, $pkt) = @_;
		3058
		3059	# try lzf for large packets
		3060	$pkt = "lzf " . Compress::LZF::compress $pkt
		3061	if 1024 <= length $pkt and $self->{can_lzf};
		3062
		3063	# split very large packets
		3064	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3065	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3066	$pkt = "frag";
		3067	}
		3068
		3069	$self->send_packet ($pkt);
		3070	}
		3071
		3072	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3073
		3074	Send a msg packet to the client, formatting the msg for the client if
		3075	necessary. C<$type> should be a string identifying the type of the
		3076	message, with C<log> being the default. If C<$color> is negative, suppress
		3077	the message unless the client supports the msg packet.
		3078
		3079	=cut
		3080
		3081	# non-persistent channels (usually the info channel)
		3082	our %CHANNEL = (
		3083	"c/motd" => {
		3084	id => "infobox",
		3085	title => "MOTD",
		3086	reply => undef,
		3087	tooltip => "The message of the day",
		3088	},
		3089	"c/identify" => {
		3090	id => "infobox",
		3091	title => "Identify",
		3092	reply => undef,
		3093	tooltip => "Items recently identified",
		3094	},
		3095	"c/examine" => {
		3096	id => "infobox",
		3097	title => "Examine",
		3098	reply => undef,
		3099	tooltip => "Signs and other items you examined",
		3100	},
		3101	"c/shopinfo" => {
		3102	id => "infobox",
		3103	title => "Shop Info",
		3104	reply => undef,
		3105	tooltip => "What your bargaining skill tells you about the shop",
		3106	},
		3107	"c/book" => {
		3108	id => "infobox",
		3109	title => "Book",
		3110	reply => undef,
		3111	tooltip => "The contents of a note or book",
		3112	},
		3113	"c/lookat" => {
		3114	id => "infobox",
		3115	title => "Look",
		3116	reply => undef,
		3117	tooltip => "What you saw there",
		3118	},
		3119	"c/who" => {
		3120	id => "infobox",
		3121	title => "Players",
		3122	reply => undef,
		3123	tooltip => "Shows players who are currently online",
		3124	},
		3125	"c/body" => {
		3126	id => "infobox",
		3127	title => "Body Parts",
		3128	reply => undef,
		3129	tooltip => "Shows which body parts you posess and are available",
		3130	},
		3131	"c/statistics" => {
		3132	id => "infobox",
		3133	title => "Statistics",
		3134	reply => undef,
		3135	tooltip => "Shows your primary statistics",
		3136	},
		3137	"c/skills" => {
		3138	id => "infobox",
		3139	title => "Skills",
		3140	reply => undef,
		3141	tooltip => "Shows your experience per skill and item power",
		3142	},
		3143	"c/shopitems" => {
		3144	id => "infobox",
		3145	title => "Shop Items",
		3146	reply => undef,
		3147	tooltip => "Shows the items currently for sale in this shop",
		3148	},
		3149	"c/resistances" => {
		3150	id => "infobox",
		3151	title => "Resistances",
		3152	reply => undef,
		3153	tooltip => "Shows your resistances",
		3154	},
		3155	"c/pets" => {
		3156	id => "infobox",
		3157	title => "Pets",
		3158	reply => undef,
		3159	tooltip => "Shows information abotu your pets/a specific pet",
		3160	},
		3161	"c/perceiveself" => {
		3162	id => "infobox",
		3163	title => "Perceive Self",
		3164	reply => undef,
		3165	tooltip => "You gained detailed knowledge about yourself",
		3166	},
		3167	"c/uptime" => {
		3168	id => "infobox",
		3169	title => "Uptime",
		3170	reply => undef,
		3171	tooltip => "How long the server has been running since last restart",
		3172	},
		3173	"c/mapinfo" => {
		3174	id => "infobox",
		3175	title => "Map Info",
		3176	reply => undef,
		3177	tooltip => "Information related to the maps",
		3178	},
		3179	"c/party" => {
		3180	id => "party",
		3181	title => "Party",
		3182	reply => "gsay ",
		3183	tooltip => "Messages and chat related to your party",
		3184	},
		3185	"c/death" => {
		3186	id => "death",
		3187	title => "Death",
		3188	reply => undef,
		3189	tooltip => "Reason for and more info about your most recent death",
		3190	},
		3191	"c/fatal" => {
		3192	id => "fatal",
		3193	title => "Fatal Error",
		3194	reply => undef,
		3195	tooltip => "Reason for the server disconnect",
		3196	},
		3197	"c/say" => $SAY_CHANNEL,
		3198	"c/chat" => $CHAT_CHANNEL,
		3199	);
		3200
1089	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($self, $channel, $msg, $color, @extra) = @_;
		3203
		3204	$msg = $self->pl->expand_cfpod ($msg)
		3205	unless $color & cf::NDI_VERBATIM;
		3206
		3207	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3208
		3209	# check predefined channels, for the benefit of C
		3210	if ($CHANNEL{$channel}) {
		3211	$channel = $CHANNEL{$channel};
		3212
		3213	$self->ext_msg (channel_info => $channel);
		3214	$channel = $channel->{id};
		3215
		3216	} elsif (ref $channel) {
		3217	# send meta info to client, if not yet sent
		3218	unless (exists $self->{channel}{$channel->{id}}) {
		3219	$self->{channel}{$channel->{id}} = $channel;
		3220	$self->ext_msg (channel_info => $channel);
		3221	}
		3222
		3223	$channel = $channel->{id};
		3224	}
		3225
		3226	return unless @extra || length $msg;
		3227
		3228	# default colour, mask it out
		3229	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3230	if $color & cf::NDI_DEF;
		3231
		3232	my $pkt = "msg "
		3233	. $self->{json_coder}->encode (
		3234	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3235	);
		3236
		3237	$self->send_big_packet ($pkt);
		3238	}
		3239
		3240	=item $client->ext_msg ($type, @msg)
		3241
		3242	Sends an ext event to the client.
		3243
		3244	=cut
		3245
		3246	sub cf::client::ext_msg($$@) {
1090	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1091		3248
1092	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1093	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1094	}	3250	}
1095
1096		3251
1097	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1098		3253
1099	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1100	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3255	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1101	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3256	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1102		3257
1103	Queries can fail, so check the return code. Or don't, as queries will become	3258	Queries can fail, so check the return code. Or don't, as queries will
1104	reliable at some point in the future.	3259	become reliable at some point in the future.
1105		3260
1106	=cut	3261	=cut
1107		3262
1108	sub cf::client::query {	3263	sub cf::client::query {
1109	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1117	utf8::encode $text;	3272	utf8::encode $text;
1118	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1119		3274
1120	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
1121	if @{ $self->{query_queue} } == 1;	3276	if @{ $self->{query_queue} } == 1;
		3277
		3278	1
		3279	}
		3280
		3281	=item $client->update_command_faces
		3282
		3283	=cut
		3284
		3285	our @COMMAND_FACES; # [normal commands, emotes, dm commands]
		3286
		3287	sub cf::client::update_command_faces {
		3288	my ($self) = @_;
		3289
		3290	my @faces = (
		3291	$COMMAND_FACES[0],
		3292	$COMMAND_FACES[1],
		3293	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACES[2] : ()
		3294	);
		3295
		3296	$self->send_face ($_)
		3297	for @faces;
		3298	$self->flush_fx;
		3299
		3300	$self->ext_msg (command_list => @faces);
		3301	}
		3302
		3303	=item cf::client::set_command_faces $normal_commands, $emotes, $dm_commands
		3304
		3305	=cut
		3306
		3307	sub cf::client::set_command_faces {
		3308	@COMMAND_FACES = @_;
1122	}	3309	}
1123		3310
1124	cf::client->attach (	3311	cf::client->attach (
		3312	on_connect => sub {
		3313	my ($ns) = @_;
		3314
		3315	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3316	},
1125	on_reply => sub {	3317	on_reply => sub {
1126	my ($ns, $msg) = @_;	3318	my ($ns, $msg) = @_;
1127		3319
1128	# this weird shuffling is so that direct followup queries	3320	# this weird shuffling is so that direct followup queries
1129	# get handled first	3321	# get handled first
1130	my $queue = delete $ns->{query_queue};	3322	my $queue = delete $ns->{query_queue}
		3323	or return; # be conservative, not sure how that can happen, but we saw a crash here
1131		3324
1132	(shift @$queue)->[1]->($msg);	3325	(shift @$queue)->[1]->($msg);
		3326	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1133		3327
1134	push @{ $ns->{query_queue} }, @$queue;	3328	push @{ $ns->{query_queue} }, @$queue;
1135		3329
1136	if (@{ $ns->{query_queue} } == @$queue) {	3330	if (@{ $ns->{query_queue} } == @$queue) {
1137	if (@$queue) {	3331	if (@$queue) {
…		…
1139	} else {	3333	} else {
1140	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3334	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1141	}	3335	}
1142	}	3336	}
1143	},	3337	},
		3338	on_exticmd => sub {
		3339	my ($ns, $buf) = @_;
		3340
		3341	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3342
		3343	if (ref $msg) {
		3344	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3345
		3346	if (my $cb = $EXTIACMD{$type}) {
		3347	$cb->(
		3348	$ns,
		3349	sub {
		3350	$ns->ext_msg ("reply-$reply", @_)
		3351	if $reply;
		3352	},
		3353	@payload
		3354	);
		3355	} else {
		3356	my @reply;
		3357
		3358	if (my $cb = $EXTICMD{$type}) {
		3359	@reply = $cb->($ns, @payload);
		3360	}
		3361
		3362	$ns->ext_msg ("reply-$reply", @reply)
		3363	if $reply;
		3364	}
		3365	} else {
		3366	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3367	}
		3368
		3369	cf::override;
		3370	},
1144	);	3371	);
1145		3372
1146	=item $client->coro (\&cb)	3373	=item $client->async (\&cb)
1147		3374
1148	Create a new coroutine, running the specified callback. The coroutine will	3375	Create a new coroutine, running the specified callback. The coroutine will
1149	be automatically cancelled when the client gets destroyed (e.g. on logout,	3376	be automatically cancelled when the client gets destroyed (e.g. on logout,
1150	or loss of connection).	3377	or loss of connection).
1151		3378
1152	=cut	3379	=cut
1153		3380
1154	sub cf::client::coro {	3381	sub cf::client::async {
1155	my ($self, $cb) = @_;	3382	my ($self, $cb) = @_;
1156		3383
1157	my $coro; $coro = async {	3384	my $coro = &Coro::async ($cb);
1158	eval {
1159	$cb->();
1160	};
1161	warn $@ if $@;
1162	};
1163		3385
1164	$coro->on_destroy (sub {	3386	$coro->on_destroy (sub {
1165	delete $self->{_coro}{$coro+0};	3387	delete $self->{_coro}{$coro+0};
1166	});	3388	});
1167		3389
…		…
1169		3391
1170	$coro	3392	$coro
1171	}	3393	}
1172		3394
1173	cf::client->attach (	3395	cf::client->attach (
1174	on_destroy => sub {	3396	on_client_destroy => sub {
1175	my ($ns) = @_;	3397	my ($ns) = @_;
1176		3398
1177	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3399	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1178	},	3400	},
1179	);	3401	);
…		…
1194	our $safe = new Safe "safe";	3416	our $safe = new Safe "safe";
1195	our $safe_hole = new Safe::Hole;	3417	our $safe_hole = new Safe::Hole;
1196		3418
1197	$SIG{FPE} = 'IGNORE';	3419	$SIG{FPE} = 'IGNORE';
1198		3420
1199	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3421	$safe->permit_only (Opcode::opset qw(
		3422	:base_core :base_mem :base_orig :base_math :base_loop
		3423	grepstart grepwhile mapstart mapwhile
		3424	sort time
		3425	));
1200		3426
1201	# here we export the classes and methods available to script code	3427	# here we export the classes and methods available to script code
1202		3428
1203	=pod	3429	=pod
1204		3430
1205	The following fucntions and emthods are available within a safe environment:	3431	The following functions and methods are available within a safe environment:
1206		3432
1207	cf::object contr pay_amount pay_player map	3433	cf::object
		3434	contr pay_amount pay_player map x y force_find force_add destroy
		3435	insert remove name archname title slaying race decrease split
		3436	value
		3437
1208	cf::object::player player	3438	cf::object::player
1209	cf::player peaceful	3439	player
1210	cf::map trigger	3440
		3441	cf::player
		3442	peaceful
		3443
		3444	cf::map
		3445	trigger
1211		3446
1212	=cut	3447	=cut
1213		3448
1214	for (	3449	for (
1215	["cf::object" => qw(contr pay_amount pay_player map)],	3450	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3451	insert remove inv nrof name archname title slaying race
		3452	decrease split destroy change_exp value msg lore send_msg)],
1216	["cf::object::player" => qw(player)],	3453	["cf::object::player" => qw(player)],
1217	["cf::player" => qw(peaceful)],	3454	["cf::player" => qw(peaceful send_msg)],
1218	["cf::map" => qw(trigger)],	3455	["cf::map" => qw(trigger)],
1219	) {	3456	) {
1220	no strict 'refs';
1221	my ($pkg, @funs) = @$_;	3457	my ($pkg, @funs) = @$_;
1222	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3458	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1223	for @funs;	3459	for @funs;
1224	}	3460	}
1225		3461
…		…
1240		3476
1241	my $qcode = $code;	3477	my $qcode = $code;
1242	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3478	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1243	$qcode =~ s/\n/\\n/g;	3479	$qcode =~ s/\n/\\n/g;
1244		3480
		3481	%vars = (_dummy => 0) unless %vars;
		3482
		3483	my @res;
1245	local $_;	3484	local $_;
1246	local @safe::cf::_safe_eval_args = values %vars;
1247		3485
1248	my $eval =	3486	my $eval =
1249	"do {\n"	3487	"do {\n"
1250	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3488	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1251	. "#line 0 \"{$qcode}\"\n"	3489	. "#line 0 \"{$qcode}\"\n"
1252	. $code	3490	. $code
1253	. "\n}"	3491	. "\n}"
1254	;	3492	;
1255		3493
		3494	if ($CFG{safe_eval}) {
1256	sub_generation_inc;	3495	sub_generation_inc;
		3496	local @safe::cf::_safe_eval_args = values %vars;
1257	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3497	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1258	sub_generation_inc;	3498	sub_generation_inc;
		3499	} else {
		3500	local @cf::_safe_eval_args = values %vars;
		3501	@res = wantarray ? eval eval : scalar eval $eval;
		3502	}
1259		3503
1260	if ($@) {	3504	if ($@) {
1261	warn "$@";	3505	warn "$@",
1262	warn "while executing safe code '$code'\n";	3506	"while executing safe code '$code'\n",
1263	warn "with arguments " . (join " ", %vars) . "\n";	3507	"with arguments " . (join " ", %vars) . "\n";
1264	}	3508	}
1265		3509
1266	wantarray ? @res : $res[0]	3510	wantarray ? @res : $res[0]
1267	}	3511	}
1268		3512
…		…
1282	=cut	3526	=cut
1283		3527
1284	sub register_script_function {	3528	sub register_script_function {
1285	my ($fun, $cb) = @_;	3529	my ($fun, $cb) = @_;
1286		3530
1287	no strict 'refs';	3531	$fun = "safe::$fun" if $CFG{safe_eval};
1288	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3532	*$fun = $safe_hole->wrap ($cb);
1289	}	3533	}
1290		3534
1291	=back	3535	=back
1292		3536
1293	=cut	3537	=cut
1294		3538
1295	#############################################################################	3539	#############################################################################
1296		3540	# the server's init and main functions
1297	=head2 EXTENSION DATABASE SUPPORT
1298
1299	Crossfire maintains a very simple database for extension use. It can
1300	currently store anything that can be serialised using Storable, which
1301	excludes objects.
1302
1303	The parameter C<$family> should best start with the name of the extension
1304	using it, it should be unique.
1305
1306	=over 4
1307
1308	=item $hashref = cf::db_get $family
1309
1310	Return a hashref for use by the extension C<$family>, which can be
1311	modified. After modifications, you have to call C<cf::db_dirty> or
1312	C<cf::db_sync>.
1313
1314	=item $value = cf::db_get $family => $key
1315
1316	Returns a single value from the database
1317
1318	=item cf::db_put $family => $hashref
1319
1320	Stores the given family hashref into the database. Updates are delayed, if
1321	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_put $family => $key => $value
1324
1325	Stores the given C<$value> in the family hash. Updates are delayed, if you
1326	want the data to be synced to disk immediately, use C<cf::db_sync>.
1327
1328	=item cf::db_dirty
1329
1330	Marks the database as dirty, to be updated at a later time.
1331
1332	=item cf::db_sync
1333
1334	Immediately write the database to disk I<if it is dirty>.
1335
1336	=cut
1337
1338	our $DB;
1339		3541
1340	{	3542	{
1341	my $path = cf::localdir . "/database.pst";	3543	package cf::face;
1342		3544
1343	sub db_load() {	3545	our %HASH; # hash => idx
1344	warn "loading database $path\n";#d# remove later	3546	our @DATA; # dynamically-created facedata, only faceste 0 used
1345	$DB = stat $path ? Storable::retrieve $path : { };	3547	our @FOFS; # file offset, if > 0
1346	}	3548	our @SIZE; # size of face, in octets
		3549	our @META; # meta hash of face, if any
		3550	our $DATAFH; # facedata filehandle
1347		3551
1348	my $pid;	3552	# internal api, not finalised
		3553	sub set {
		3554	my ($name, $type, $data) = @_;
1349		3555
1350	sub db_save() {	3556	my $idx = cf::face::find $name;
1351	warn "saving database $path\n";#d# remove later
1352	waitpid $pid, 0 if $pid;
1353	if (0 == ($pid = fork)) {
1354	$DB->{_meta}{version} = 1;
1355	Storable::nstore $DB, "$path~";
1356	rename "$path~", $path;
1357	cf::_exit 0 if defined $pid;
1358	}
1359	}
1360		3557
1361	my $dirty;	3558	if ($idx) {
1362		3559	delete $HASH{cf::face::get_csum $idx};
1363	sub db_sync() {
1364	db_save if $dirty;
1365	undef $dirty;
1366	}
1367
1368	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1369	db_sync;
1370	});
1371
1372	sub db_dirty() {
1373	$dirty = 1;
1374	$idle->start;
1375	}
1376
1377	sub db_get($;$) {
1378	@_ >= 2
1379	? $DB->{$_[0]}{$_[1]}
1380	: ($DB->{$_[0]} ||= { })
1381	}
1382
1383	sub db_put($$;$) {
1384	if (@_ >= 3) {
1385	$DB->{$_[0]}{$_[1]} = $_[2];
1386	} else {	3560	} else {
1387	$DB->{$_[0]} = $_[1];	3561	$idx = cf::face::alloc $name;
1388	}
1389	db_dirty;
1390	}
1391
1392	cf::global->attach (
1393	prio => 10000,
1394	on_cleanup => sub {
1395	db_sync;
1396	},	3562	}
		3563
		3564	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3565
		3566	cf::face::set_type $idx, $type;
		3567	cf::face::set_csum $idx, 0, $hash;
		3568
		3569	# we need to destroy the SV itself, not just modify it, as a running ix
		3570	# might hold a reference to it: "delete" achieves that.
		3571	delete $FOFS[0][$idx];
		3572	delete $DATA[0][$idx];
		3573	$DATA[0][$idx] = $data;
		3574	$SIZE[0][$idx] = length $data;
		3575	delete $META[$idx];
		3576	$HASH{$hash} = $idx;#d#
		3577
		3578	$idx
		3579	}
		3580
		3581	sub _get_data($$$) {
		3582	my ($idx, $set, $cb) = @_;
		3583
		3584	if (defined $DATA[$set][$idx]) {
		3585	$cb->($DATA[$set][$idx]);
		3586	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3587	my $size = $SIZE[$set][$idx];
		3588	my $buf;
		3589	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3590	if ($_[0] == $size) {
		3591	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3592	$cb->($buf);
		3593	} else {
		3594	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3595	}
		3596	};
		3597	} else {
		3598	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3599	}
		3600	}
		3601
		3602	# rather ineffient
		3603	sub cf::face::get_data($;$) {
		3604	my ($idx, $set) = @_;
		3605
		3606	_get_data $idx, $set, Coro::rouse_cb;
		3607	Coro::rouse_wait
		3608	}
		3609
		3610	sub cf::face::ix {
		3611	my ($ns, $set, $idx, $pri) = @_;
		3612
		3613	_get_data $idx, $set, sub {
		3614	$ns->ix_send ($idx, $pri, $_[0]);
		3615	};
		3616	}
		3617	}
		3618
		3619	sub load_facedata($) {
		3620	my ($path) = @_;
		3621
		3622	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3623
		3624	trace "loading facedata from $path\n";
		3625
		3626	my $facedata = decode_storable load_file "$path/faceinfo";
		3627
		3628	$facedata->{version} == 2
		3629	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3630
		3631	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3632	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3633
		3634	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3635
		3636	# BEGIN ATOMIC
		3637	# from here on, everything must be atomic - no thread switch allowed
		3638	my $t1 = EV::time;
		3639
		3640	{
		3641	my $faces = $facedata->{faceinfo};
		3642
		3643	for my $face (sort keys %$faces) {
		3644	my $info = $faces->{$face};
		3645	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3646
		3647	cf::face::set_visibility $idx, $info->{visibility};
		3648	cf::face::set_magicmap $idx, $info->{magicmap};
		3649	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3650	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3651	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3652	$cf::face::HASH{$info->{hash64}} = $idx;
		3653	delete $cf::face::META[$idx];
		3654	}
		3655
		3656	while (my ($face, $info) = each %$faces) {
		3657	next unless $info->{smooth};
		3658
		3659	my $idx = cf::face::find $face
		3660	or next;
		3661
		3662	if (my $smooth = cf::face::find $info->{smooth}) {
		3663	cf::face::set_smooth $idx, $smooth;
		3664	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3665	} else {
		3666	error "smooth face '$info->{smooth}' not found for face '$face'";
		3667	}
		3668	}
		3669	}
		3670
		3671	{
		3672	my $anims = $facedata->{animinfo};
		3673
		3674	while (my ($anim, $info) = each %$anims) {
		3675	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3676	}
		3677
		3678	cf::anim::invalidate_all; # d'oh
		3679	}
		3680
		3681	{
		3682	my $res = $facedata->{resource};
		3683
		3684	while (my ($name, $info) = each %$res) {
		3685	if (defined (my $type = $info->{type})) {
		3686	# TODO: different hash - must free and use new index, or cache ixface data queue
		3687	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3688
		3689	cf::face::set_type $idx, $type;
		3690	cf::face::set_csum $idx, 0, $info->{hash};
		3691	$cf::face::SIZE[0][$idx] = $info->{size};
		3692	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3693	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3694	$cf::face::HASH{$info->{hash}} = $idx;
		3695	} else {
		3696	# $RESOURCE{$name} = $info; # unused
		3697	}
		3698	}
		3699	}
		3700
		3701	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3702
		3703	# HACK to clear player env face cache, we need some signal framework
		3704	# for this (global event?)
		3705	%ext::player_env::MUSIC_FACE_CACHE = ();
		3706
		3707	# END ATOMIC
		3708
		3709	cf::debug "facedata atomic update time ", EV::time - $t1;
		3710
		3711	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3712
		3713	aio_close $fh if $fh; # close old facedata
		3714
		3715	1
		3716	}
		3717
		3718	register_exticmd fx_want => sub {
		3719	my ($ns, $want) = @_;
		3720
		3721	while (my ($k, $v) = each %$want) {
		3722	$ns->fx_want ($k, $v);
		3723	}
		3724	};
		3725
		3726	sub load_resource_file($) {
		3727	my $guard = lock_acquire "load_resource_file";
		3728
		3729	my $status = load_resource_file_ $_[0];
		3730	get_slot 0.1, 100;
		3731	cf::arch::commit_load;
		3732
		3733	$status
		3734	}
		3735
		3736	sub reload_exp_table {
		3737	_reload_exp_table;
		3738
		3739	cf::face::set
		3740	"res/exp_table" => FT_RSRC,
		3741	JSON::XS->new->utf8->canonical->encode (
		3742	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3743	);
		3744	}
		3745
		3746	sub reload_materials {
		3747	_reload_materials;
		3748	}
		3749
		3750	sub reload_regions {
		3751	# HACK to clear player env face cache, we need some signal framework
		3752	# for this (global event?)
		3753	%ext::player_env::MUSIC_FACE_CACHE = ();
		3754
		3755	load_resource_file "$MAPDIR/regions"
		3756	or die "unable to load regions file\n";
		3757
		3758	for (cf::region::list) {
		3759	$_->{match} = qr/$_->{match}/
		3760	if exists $_->{match};
		3761	}
		3762	}
		3763
		3764	sub reload_facedata {
		3765	load_facedata $DATADIR
		3766	or die "unable to load facedata\n";
		3767	}
		3768
		3769	sub reload_archetypes {
		3770	load_resource_file "$DATADIR/archetypes"
		3771	or die "unable to load archetypes\n";
		3772
		3773	cf::face::set
		3774	"res/skill_info" => FT_RSRC,
		3775	JSON::XS->new->utf8->canonical->encode (
		3776	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3777	);
		3778
		3779	cf::face::set
		3780	"res/spell_paths" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3783	);
		3784	}
		3785
		3786	sub reload_treasures {
		3787	load_resource_file "$DATADIR/treasures"
		3788	or die "unable to load treasurelists\n";
		3789	}
		3790
		3791	sub reload_sound {
		3792	trace "loading sound config from $DATADIR/sound\n";
		3793
		3794	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3795
		3796	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3797	my $sound = $soundconf->{compat}[$_]
		3798	or next;
		3799
		3800	my $face = cf::face::find "sound/$sound->[1]";
		3801	cf::sound::set $sound->[0] => $face;
		3802	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3803	}
		3804
		3805	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3806	my $face = cf::face::find "sound/$v";
		3807	cf::sound::set $k => $face;
		3808	}
		3809	}
		3810
		3811	sub reload_resources {
		3812	trace "reloading resource files...\n";
		3813
		3814	reload_materials;
		3815	reload_facedata;
		3816	reload_exp_table;
		3817	reload_sound;
		3818	reload_archetypes;
		3819	reload_regions;
		3820	reload_treasures;
		3821
		3822	trace "finished reloading resource files\n";
		3823	}
		3824
		3825	sub reload_config {
		3826	trace "reloading config file...\n";
		3827
		3828	my $config = load_file "$CONFDIR/config";
		3829	utf8::decode $config;
		3830	*CFG = decode_yaml $config;
		3831
		3832	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3833
		3834	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3835	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3836
		3837	if (exists $CFG{mlockall}) {
		3838	eval {
		3839	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3840	and die "WARNING: m(un)lockall failed: $!\n";
		3841	};
		3842	warn $@ if $@;
		3843	}
		3844	}
		3845
		3846	sub pidfile() {
		3847	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3848	or die "$PIDFILE: $!";
		3849	flock $fh, &Fcntl::LOCK_EX
		3850	or die "$PIDFILE: flock: $!";
		3851	$fh
		3852	}
		3853
		3854	# make sure only one server instance is running at any one time
		3855	sub atomic {
		3856	my $fh = pidfile;
		3857
		3858	my $pid = <$fh>;
		3859	kill 9, $pid if $pid > 0;
		3860
		3861	seek $fh, 0, 0;
		3862	print $fh $$;
		3863	}
		3864
		3865	sub main_loop {
		3866	trace "EV::loop starting\n";
		3867	if (1) {
		3868	EV::loop;
		3869	}
		3870	trace "EV::loop returned\n";
		3871	goto &main_loop unless $REALLY_UNLOOP;
		3872	}
		3873
		3874	sub main {
		3875	cf::init_globals; # initialise logging
		3876
		3877	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3878	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3879	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3880	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3881
		3882	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3883
		3884	# we must not ever block the main coroutine
		3885	$Coro::idle = sub {
		3886	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3887	(async {
		3888	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3889	EV::loop EV::LOOP_ONESHOT;
		3890	})->prio (Coro::PRIO_MAX);
1397	);	3891	};
		3892
		3893	evthread_start IO::AIO::poll_fileno;
		3894
		3895	cf::sync_job {
		3896	cf::incloader::init ();
		3897
		3898	db_init;
		3899
		3900	cf::init_anim;
		3901	cf::init_attackmess;
		3902	cf::init_dynamic;
		3903
		3904	cf::load_settings;
		3905
		3906	reload_resources;
		3907	reload_config;
		3908
		3909	cf::init_uuid;
		3910	cf::init_signals;
		3911	cf::init_skills;
		3912
		3913	cf::init_beforeplay;
		3914
		3915	atomic;
		3916
		3917	load_extensions;
		3918
		3919	utime time, time, $RUNTIMEFILE;
		3920
		3921	# no (long-running) fork's whatsoever before this point(!)
		3922	use POSIX ();
		3923	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3924
		3925	cf::_post_init 0;
		3926	};
		3927
		3928	cf::object::thawer::errors_are_fatal 0;
		3929	info "parse errors in files are no longer fatal from this point on.\n";
		3930
		3931	AE::postpone {
		3932	undef &main; # free gobs of memory :)
		3933	};
		3934
		3935	goto &main_loop;
1398	}	3936	}
1399		3937
1400	#############################################################################	3938	#############################################################################
1401	# the server's main()	3939	# initialisation and cleanup
1402		3940
1403	sub cfg_load {	3941	# install some emergency cleanup handlers
1404	open my $fh, "<:utf8", cf::confdir . "/config"	3942	BEGIN {
		3943	our %SIGWATCHER = ();
		3944	for my $signal (qw(INT HUP TERM)) {
		3945	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3946	cf::cleanup "SIG$signal";
		3947	};
		3948	}
		3949	}
		3950
		3951	sub write_runtime_sync {
		3952	my $t0 = AE::time;
		3953
		3954	# first touch the runtime file to show we are still running:
		3955	# the fsync below can take a very very long time.
		3956
		3957	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3958
		3959	my $guard = cf::lock_acquire "write_runtime";
		3960
		3961	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1405	or return;	3962	or return;
1406		3963
1407	local $/;	3964	my $value = $cf::RUNTIME + 90 + 10;
1408	*CFG = YAML::Syck::Load <$fh>;	3965	# 10 is the runtime save interval, for a monotonic clock
1409	}	3966	# 60 allows for the watchdog to kill the server.
1410		3967
1411	sub main {	3968	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1412	# we must not ever block the main coroutine	3969	and return;
1413	local $Coro::idle = sub {	3970
1414	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3971	# always fsync - this file is important
1415	(Coro::unblock_sub {	3972	aio_fsync $fh
1416	Event::one_event;	3973	and return;
		3974
		3975	# touch it again to show we are up-to-date
		3976	aio_utime $fh, undef, undef;
		3977
		3978	close $fh
		3979	or return;
		3980
		3981	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3982	and return;
		3983
		3984	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3985
		3986	1
		3987	}
		3988
		3989	our $uuid_lock;
		3990	our $uuid_skip;
		3991
		3992	sub write_uuid_sync($) {
		3993	$uuid_skip ||= $_[0];
		3994
		3995	return if $uuid_lock;
		3996	local $uuid_lock = 1;
		3997
		3998	my $uuid = "$LOCALDIR/uuid";
		3999
		4000	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4001	or return;
		4002
		4003	my $value = uuid_seq uuid_cur;
		4004
		4005	unless ($value) {
		4006	info "cowardly refusing to write zero uuid value!\n";
		4007	return;
		4008	}
		4009
		4010	my $value = uuid_str $value + $uuid_skip;
		4011	$uuid_skip = 0;
		4012
		4013	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4014	and return;
		4015
		4016	# always fsync - this file is important
		4017	aio_fsync $fh
		4018	and return;
		4019
		4020	close $fh
		4021	or return;
		4022
		4023	aio_rename "$uuid~", $uuid
		4024	and return;
		4025
		4026	trace "uuid file written ($value).\n";
		4027
		4028	1
		4029
		4030	}
		4031
		4032	sub write_uuid($$) {
		4033	my ($skip, $sync) = @_;
		4034
		4035	$sync ? write_uuid_sync $skip
		4036	: async { write_uuid_sync $skip };
		4037	}
		4038
		4039	sub emergency_save() {
		4040	my $freeze_guard = cf::freeze_mainloop;
		4041
		4042	info "emergency_perl_save: enter\n";
		4043
		4044	# this is a trade-off: we want to be very quick here, so
		4045	# save all maps without fsync, and later call a global sync
		4046	# (which in turn might be very very slow)
		4047	local $USE_FSYNC = 0;
		4048
		4049	cf::sync_job {
		4050	cf::write_runtime_sync; # external watchdog should not bark
		4051
		4052	# use a peculiar iteration method to avoid tripping on perl
		4053	# refcount bugs in for. also avoids problems with players
		4054	# and maps saved/destroyed asynchronously.
		4055	info "emergency_perl_save: begin player save\n";
		4056	for my $login (keys %cf::PLAYER) {
		4057	my $pl = $cf::PLAYER{$login} or next;
		4058	$pl->valid or next;
		4059	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4060	$pl->save;
		4061	}
		4062	info "emergency_perl_save: end player save\n";
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	info "emergency_perl_save: begin map save\n";
		4067	for my $path (keys %cf::MAP) {
		4068	my $map = $cf::MAP{$path} or next;
		4069	$map->valid or next;
		4070	$map->save;
		4071	}
		4072	info "emergency_perl_save: end map save\n";
		4073
		4074	cf::write_runtime_sync; # external watchdog should not bark
		4075
		4076	info "emergency_perl_save: begin database checkpoint\n";
		4077	BDB::db_env_txn_checkpoint $DB_ENV;
		4078	info "emergency_perl_save: end database checkpoint\n";
		4079
		4080	info "emergency_perl_save: begin write uuid\n";
		4081	write_uuid_sync 1;
		4082	info "emergency_perl_save: end write uuid\n";
		4083
		4084	cf::write_runtime_sync; # external watchdog should not bark
		4085
		4086	trace "emergency_perl_save: syncing database to disk";
		4087	BDB::db_env_txn_checkpoint $DB_ENV;
		4088
		4089	info "emergency_perl_save: starting sync\n";
		4090	IO::AIO::aio_sync sub {
		4091	info "emergency_perl_save: finished sync\n";
1417	})->();	4092	};
		4093
		4094	cf::write_runtime_sync; # external watchdog should not bark
		4095
		4096	trace "emergency_perl_save: flushing outstanding aio requests";
		4097	while (IO::AIO::nreqs || BDB::nreqs) {
		4098	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4099	}
		4100
		4101	cf::write_runtime_sync; # external watchdog should not bark
1418	};	4102	};
1419		4103
1420	cfg_load;	4104	info "emergency_perl_save: leave\n";
1421	db_load;	4105	}
		4106
		4107	sub post_cleanup {
		4108	my ($make_core) = @_;
		4109
		4110	IO::AIO::flush;
		4111
		4112	error Carp::longmess "post_cleanup backtrace"
		4113	if $make_core;
		4114
		4115	my $fh = pidfile;
		4116	unlink $PIDFILE if <$fh> == $$;
		4117	}
		4118
		4119	# a safer delete_package, copied from Symbol
		4120	sub clear_package($) {
		4121	my $pkg = shift;
		4122
		4123	# expand to full symbol table name if needed
		4124	unless ($pkg =~ /^main::.*::$/) {
		4125	$pkg = "main$pkg" if $pkg =~ /^::/;
		4126	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4127	$pkg .= '::' unless $pkg =~ /::$/;
		4128	}
		4129
		4130	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4131	my $stem_symtab = *{$stem}{HASH};
		4132
		4133	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4134	or return;
		4135
		4136	# clear all symbols
		4137	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4138	for my $name (keys %$leaf_symtab) {
		4139	_gv_clear *{"$pkg$name"};
		4140	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4141	}
		4142	}
		4143
		4144	sub do_reload_perl() {
		4145	# can/must only be called in main
		4146	unless (in_main) {
		4147	error "can only reload from main coroutine";
		4148	return;
		4149	}
		4150
		4151	return if $RELOAD++;
		4152
		4153	my $t1 = AE::time;
		4154
		4155	while ($RELOAD) {
		4156	cf::get_slot 0.1, -1, "reload_perl";
		4157	info "perl_reload: reloading...";
		4158
		4159	trace "perl_reload: entering sync_job";
		4160
		4161	cf::sync_job {
		4162	#cf::emergency_save;
		4163
		4164	trace "perl_reload: cancelling all extension coros";
		4165	$_->cancel for values %EXT_CORO;
		4166	%EXT_CORO = ();
		4167
		4168	trace "perl_reload: removing commands";
		4169	%COMMAND = ();
		4170
		4171	trace "perl_reload: removing ext/exti commands";
		4172	%EXTCMD = ();
		4173	%EXTICMD = ();
		4174
		4175	trace "perl_reload: unloading/nuking all extensions";
		4176	for my $pkg (@EXTS) {
		4177	trace "... unloading $pkg";
		4178
		4179	if (my $cb = $pkg->can ("unload")) {
		4180	eval {
		4181	$cb->($pkg);
		4182	1
		4183	} or error "$pkg unloaded, but with errors: $@";
		4184	}
		4185
		4186	trace "... clearing $pkg";
		4187	clear_package $pkg;
		4188	}
		4189
		4190	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4191	while (my ($k, $v) = each %INC) {
		4192	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4193
		4194	trace "... unloading $k";
		4195	delete $INC{$k};
		4196
		4197	$k =~ s/\.pm$//;
		4198	$k =~ s/\//::/g;
		4199
		4200	if (my $cb = $k->can ("unload_module")) {
		4201	$cb->();
		4202	}
		4203
		4204	clear_package $k;
		4205	}
		4206
		4207	trace "perl_reload: getting rid of safe::, as good as possible";
		4208	clear_package "safe::$_"
		4209	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		4210
		4211	trace "perl_reload: unloading cf.pm \"a bit\"";
		4212	delete $INC{"cf.pm"};
		4213	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		4214
		4215	# don't, removes xs symbols, too,
		4216	# and global variables created in xs
		4217	#clear_package __PACKAGE__;
		4218
		4219	info "perl_reload: unload completed, starting to reload now";
		4220
		4221	trace "perl_reload: reloading cf.pm";
		4222	require cf;
		4223	cf::_connect_to_perl_1;
		4224
		4225	trace "perl_reload: loading config and database again";
		4226	cf::reload_config;
		4227
		4228	trace "perl_reload: loading extensions";
1422	load_extensions;	4229	cf::load_extensions;
1423	Event::loop;	4230
		4231	if ($REATTACH_ON_RELOAD) {
		4232	trace "perl_reload: reattaching attachments to objects/players";
		4233	_global_reattach; # objects, sockets
		4234	trace "perl_reload: reattaching attachments to maps";
		4235	reattach $_ for values %MAP;
		4236	trace "perl_reload: reattaching attachments to players";
		4237	reattach $_ for values %PLAYER;
		4238	}
		4239
		4240	cf::_post_init 1;
		4241
		4242	trace "perl_reload: leaving sync_job";
		4243
		4244	1
		4245	} or do {
		4246	error $@;
		4247	cf::cleanup "perl_reload: error, exiting.";
		4248	};
		4249
		4250	--$RELOAD;
		4251	}
		4252
		4253	$t1 = AE::time - $t1;
		4254	info "perl_reload: completed in ${t1}s\n";
		4255	};
		4256
		4257	our $RELOAD_WATCHER; # used only during reload
		4258
		4259	sub reload_perl() {
		4260	# doing reload synchronously and two reloads happen back-to-back,
		4261	# coro crashes during coro_state_free->destroy here.
		4262
		4263	$RELOAD_WATCHER ||= cf::async {
		4264	Coro::AIO::aio_wait cache_extensions;
		4265
		4266	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4267	do_reload_perl;
		4268	undef $RELOAD_WATCHER;
		4269	};
		4270	};
1424	}	4271	}
		4272
		4273	register_command "reload" => sub {
		4274	my ($who, $arg) = @_;
		4275
		4276	if ($who->flag (FLAG_WIZ)) {
		4277	$who->message ("reloading server.");
		4278	async {
		4279	$Coro::current->{desc} = "perl_reload";
		4280	reload_perl;
		4281	};
		4282	}
		4283	};
1425		4284
1426	#############################################################################	4285	#############################################################################
1427	# initialisation
1428		4286
1429	sub perl_reload() {	4287	my $bug_warning = 0;
1430	# can/must only be called in main	4288
		4289	sub wait_for_tick() {
		4290	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4291
		4292	$WAIT_FOR_TICK->wait;
		4293	}
		4294
		4295	sub wait_for_tick_begin() {
		4296	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4297
		4298	my $signal = new Coro::Signal;
		4299	push @WAIT_FOR_TICK_BEGIN, $signal;
		4300	$signal->wait;
		4301	}
		4302
		4303	sub tick {
1431	if ($Coro::current != $Coro::main) {	4304	if ($Coro::current != $Coro::main) {
1432	warn "can only reload from main coroutine\n";	4305	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4306	unless ++$bug_warning > 10;
1433	return;	4307	return;
1434	}	4308	}
1435		4309
1436	warn "reloading...";	4310	cf::one_tick; # one server iteration
1437		4311
1438	local $FREEZE = 1;	4312	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
1439	cf::emergency_save;
1440		4313
1441	eval {	4314	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1442	# if anything goes wrong in here, we should simply crash as we already saved	4315	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1443		4316	Coro::async_pool {
1444	# cancel all watchers	4317	$Coro::current->{desc} = "runtime saver";
1445	for (Event::all_watchers) {	4318	write_runtime_sync
1446	$_->cancel if $_->data & WF_AUTOCANCEL;	4319	or error "ERROR: unable to write runtime file: $!";
1447	}	4320	};
		4321	}
1448		4322
1449	# cancel all extension coros	4323	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
1450	$_->cancel for values %EXT_CORO;	4324	$sig->send;
1451	%EXT_CORO = ();	4325	}
		4326	$WAIT_FOR_TICK->broadcast;
1452		4327
1453	# unload all extensions	4328	$LOAD = ($NOW - $TICK_START) / $TICK;
1454	for (@exts) {	4329	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1455	warn "unloading <$_>";
1456	unload_extension $_;
1457	}
1458		4330
1459	# unload all modules loaded from $LIBDIR	4331	if (0) {
1460	while (my ($k, $v) = each %INC) {	4332	if ($NEXT_TICK) {
1461	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4333	my $jitter = $TICK_START - $NEXT_TICK;
		4334	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4335	debug "jitter $JITTER\n";#d#
		4336	}
		4337	}
		4338	}
1462		4339
1463	warn "removing <$k>";	4340	{
1464	delete $INC{$k};	4341	# configure BDB
		4342	info "initialising database";
1465		4343
1466	$k =~ s/\.pm$//;	4344	BDB::min_parallel 16;
1467	$k =~ s/\//::/g;	4345	BDB::max_poll_reqs $TICK * 0.1;
		4346	#$AnyEvent::BDB::WATCHER->priority (1);
1468		4347
1469	if (my $cb = $k->can ("unload_module")) {	4348	unless ($DB_ENV) {
1470	$cb->();	4349	$DB_ENV = BDB::db_env_create;
		4350	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4351	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4352	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4353	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4354	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4355
		4356	cf::sync_job {
		4357	eval {
		4358	BDB::db_env_open
		4359	$DB_ENV,
		4360	$BDBDIR,
		4361	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4362	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4363	0666;
		4364
		4365	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1471	}	4366	};
1472		4367
1473	Symbol::delete_package $k;	4368	cf::cleanup "db_env_open(db): $@" if $@;
1474	}	4369	};
		4370	}
1475		4371
1476	# sync database to disk	4372	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1477	cf::db_sync;	4373	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1478	IO::AIO::flush;
1479
1480	# get rid of safe::, as good as possible
1481	Symbol::delete_package "safe::$_"
1482	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1483
1484	# remove register_script_function callbacks
1485	# TODO
1486
1487	# unload cf.pm "a bit"
1488	delete $INC{"cf.pm"};
1489
1490	# don't, removes xs symbols, too,
1491	# and global variables created in xs
1492	#Symbol::delete_package __PACKAGE__;
1493
1494	# reload cf.pm
1495	warn "reloading cf.pm";
1496	require cf;
1497	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1498
1499	# load config and database again
1500	cf::cfg_load;
1501	cf::db_load;
1502
1503	# load extensions
1504	warn "load extensions";
1505	cf::load_extensions;
1506
1507	# reattach attachments to objects
1508	warn "reattach";
1509	_global_reattach;
1510	};	4374	};
1511		4375	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1512	if ($@) {	4376	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1513	warn $@;
1514	warn "error while reloading, exiting.";
1515	exit 1;
1516	}	4377	};
1517		4378	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
1518	warn "reloaded successfully";	4379	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
1519	};
1520
1521	#############################################################################
1522
1523	unless ($LINK_MAP) {
1524	$LINK_MAP = cf::map::new;
1525
1526	$LINK_MAP->width (41);
1527	$LINK_MAP->height (41);
1528	$LINK_MAP->alloc;
1529	$LINK_MAP->path ("{link}");
1530	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1531	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1532	}
1533
1534	register "<global>", __PACKAGE__;
1535
1536	register_command "perl-reload" => sub {
1537	my ($who, $arg) = @_;
1538
1539	if ($who->flag (FLAG_WIZ)) {
1540	$who->message ("start of reload.");
1541	perl_reload;
1542	$who->message ("end of reload.");
1543	}	4380	};
1544	};
1545		4381
1546	unshift @INC, $LIBDIR;	4382	info "database initialised";
		4383	}
1547		4384
1548	$TICK_WATCHER = Event->timer (	4385	{
1549	reentrant => 0,	4386	# configure IO::AIO
1550	prio => 0,	4387
1551	at => $NEXT_TICK || $TICK,	4388	info "initialising aio";
1552	data => WF_AUTOCANCEL,	4389	IO::AIO::min_parallel 8;
1553	cb => sub {	4390	IO::AIO::max_poll_time $TICK * 0.1;
1554	unless ($FREEZE) {	4391	undef $AnyEvent::AIO::WATCHER;
1555	cf::server_tick; # one server iteration	4392	info "aio initialised";
1556	$RUNTIME += $TICK;	4393	}
		4394
		4395	our $_log_backtrace;
		4396	our $_log_backtrace_last;
		4397
		4398	sub _log_backtrace {
		4399	my ($msg, @addr) = @_;
		4400
		4401	$msg =~ s/\n$//;
		4402
		4403	if ($_log_backtrace_last eq $msg) {
		4404	LOG llevInfo, "[ABT] $msg\n";
		4405	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4406	# limit the # of concurrent backtraces
		4407	} elsif ($_log_backtrace < 2) {
		4408	$_log_backtrace_last = $msg;
		4409	++$_log_backtrace;
		4410	my $perl_bt = Carp::longmess $msg;
		4411	async {
		4412	$Coro::current->{desc} = "abt $msg";
		4413
		4414	my @bt = fork_call {
		4415	@addr = map { sprintf "%x", $_ } @addr;
		4416	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4417	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4418	or die "addr2line: $!";
		4419
		4420	my @funcs;
		4421	my @res = <$fh>;
		4422	chomp for @res;
		4423	while (@res) {
		4424	my ($func, $line) = splice @res, 0, 2, ();
		4425	push @funcs, "[$func] $line";
		4426	}
		4427
		4428	@funcs
		4429	};
		4430
		4431	LOG llevInfo, "[ABT] $perl_bt\n";
		4432	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4433	LOG llevInfo, "[ABT] $_\n" for @bt;
		4434	--$_log_backtrace;
1557	}	4435	};
1558		4436	} else {
1559	$NEXT_TICK += $TICK;	4437	LOG llevInfo, "[ABT] $msg\n";
1560		4438	LOG llevInfo, "[ABT] [overload, suppressed]\n";
1561	# if we are delayed by four ticks or more, skip them all
1562	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1563
1564	$TICK_WATCHER->at ($NEXT_TICK);
1565	$TICK_WATCHER->start;
1566	},	4439	}
1567	);	4440	}
1568		4441
1569	IO::AIO::max_poll_time $TICK * 0.2;	4442	# load additional modules
		4443	require "cf/$_.pm" for @EXTRA_MODULES;
		4444	cf::_connect_to_perl_2;
1570		4445
1571	Event->io (	4446	END { cf::emergency_save }
1572	fd => IO::AIO::poll_fileno,
1573	poll => 'r',
1574	prio => 5,
1575	data => WF_AUTOCANCEL,
1576	cb => \&IO::AIO::poll_cb,
1577	);
1578
1579	Event->timer (
1580	data => WF_AUTOCANCEL,
1581	after => 0,
1582	interval => 10,
1583	cb => sub {
1584	(Coro::unblock_sub {
1585	write_runtime
1586	or warn "ERROR: unable to write runtime file: $!";
1587	})->();
1588	},
1589	);
1590		4447
1591	1	4448	1
1592		4449

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