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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.591 by root, Tue Nov 6 23:33:15 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3;	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
20	use Digest::MD5;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
21	use Fcntl;	60	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	61	use YAML::XS ();
		62	use IO::AIO ();
24	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
25		66
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
27		68
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	69	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		73
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		82
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
34		86
35	our %COMMAND = ();	87	our %COMMAND = ();
36	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
		89
		90	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
		93	our %EXT_CORO = (); # coroutines bound to extensions
		94	our %EXT_MAP = (); # pluggable maps
38		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	97	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
41		100
42	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	102
		103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
		108	our $LOCALDIR = localdir;
		109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		112	our $RANDOMDIR = "$LOCALDIR/random";
		113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
		124
		125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
45	our $NOW;	143	our $NOW;
46		144
47	our %CFG;	145	our (%PLAYER, %PLAYER_LOADING); # all users
		146	our (%MAP, %MAP_LOADING ); # all maps
		147	our $LINK_MAP; # the special {link} map, which is always available
48		148
49	our $UPTIME; $UPTIME ||= time;	149	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		151
52	our %MAP; # all maps	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	153	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	154	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	155	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
57		164
58	binmode STDOUT;	165	binmode STDOUT;
59	binmode STDERR;	166	binmode STDERR;
60		167
61	# read virtual server time, if available	168	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
66	}	173	}
67		174
68	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		176
74	# a special map that is always available	177	mkdir $_
75	our $LINK_MAP;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		179
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	180	our $EMERGENCY_POSITION;
		181
		182	sub cf::map::normalise;
		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
78		187
79	#############################################################################	188	#############################################################################
80		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
81	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
82		202
83	=over 4	203	=over 4
84		204
85	=item $cf::UPTIME	205	=item $cf::UPTIME
86		206
87	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
88		223
89	=item $cf::RUNTIME	224	=item $cf::RUNTIME
90		225
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	227	every server tick.
93		228
94	=item $cf::LIBDIR	229	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		230	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		231	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		232
96	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		235	unique-items directory, player file directory, random maps directory and
		236	database environment.
98		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
99	=item $cf::NOW	244	=item $cf::LOAD
100		245
101	The time of the last (current) server tick.	246	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		247
107	=item %cf::CFG	248	=item %cf::CFG
108		249
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	251	from wherever your confdir points to.
111		252
		253	=item cf::wait_for_tick, cf::wait_for_tick_begin
		254
		255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		256	returns directly I<after> the tick processing (and consequently, can only wake one thread
		257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
112	=back	288	=back
113		289
114	=cut	290	=cut
115		291
116	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	299	my $msg = join "", @_;
119	utf8::encode $msg;
120		300
121	$msg .= "\n"	301	$msg .= "\n"
122	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
123		303
124	LOG llevError, "cfperl: $msg";	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	305
126	}	306	LOG llevWarn, $msg;
		307	};
		308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
127		322
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		330
135	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	332	# within the Safe compartment.
137	for my $pkg (qw(	333	for my $pkg (qw(
138	cf::global cf::attachable	334	cf::global cf::attachable
139	cf::object cf::object::player	335	cf::object cf::object::player
140	cf::client cf::player	336	cf::client cf::player
141	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
142	cf::map cf::party cf::region	339	cf::party cf::region
143	)) {	340	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	342	}
147		343
148	$Event::DIED = sub {	344	$EV::DIED = sub {
149	warn "error in event callback: @_";	345	warn "error in event callback: $@";
150	};	346	};
151		347
152	my %ext_pkg;	348	#############################################################################
153	my @exts;	349
154	my @hook;	350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
155		354
156	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
157		356
158	=over 4	357	=over 4
159		358
160	=cut	359	=item dumpval $ref
161		360
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	361	=cut
163		362
		363	sub dumpval {
		364	eval {
		365	local $SIG{__DIE__};
		366	my $d;
		367	if (1) {
		368	$d = new Data::Dumper([$_[0]], ["*var"]);
		369	$d->Terse(1);
		370	$d->Indent(2);
		371	$d->Quotekeys(0);
		372	$d->Useqq(1);
		373	#$d->Bless(...);
		374	$d->Seen($_[1]) if @_ > 1;
		375	$d = $d->Dump();
		376	}
		377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		378	$d
		379	} || "[unable to dump $_[0]: '$@']";
		380	}
		381
		382	=item $scalar = cf::load_file $path
		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
164	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
165		435
166	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
167		437
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
176		439
177	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
178		441
179	=cut	442	=cut
180		443
181	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
183	JSON::Syck::Dump $_[0]	446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
184	}	465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
		511	=item cf::lock_wait $string
		512
		513	Wait until the given lock is available. See cf::lock_acquire.
		514
		515	=item my $lock = cf::lock_acquire $string
		516
		517	Wait until the given lock is available and then acquires it and returns
		518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		519	for example when the coroutine gets canceled), the lock is automatically
		520	returned.
		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
		525	Lock names should begin with a unique identifier (for example, cf::map::find
		526	uses map_find and cf::map::load uses map_load).
		527
		528	=item $locked = cf::lock_active $string
		529
		530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
		535
		536	sub lock_wait($) {
		537	$LOCKS->wait ($_[0]);
		538	}
		539
		540	sub lock_acquire($) {
		541	$LOCKS->guard ($_[0])
		542	}
		543
		544	sub lock_active($) {
		545	$LOCKS->count ($_[0]) < 1
		546	}
		547
		548	sub freeze_mainloop {
		549	tick_inhibit_inc;
		550
		551	&Guard::guard (\&tick_inhibit_dec);
		552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
		621	}
		622	};
		623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
		637	}
		638
		639	=item cf::async { BLOCK }
		640
		641	Currently the same as Coro::async_pool, meaning you cannot use
		642	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		643	thing you are allowed to do is call C<prio> on it.
		644
		645	=cut
		646
		647	BEGIN { *async = \&Coro::async_pool }
185		648
186	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
187		650
188	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
191		655
192	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
195	fast or be very important.	659	fast or be very important.
…		…
197	=cut	661	=cut
198		662
199	sub sync_job(&) {	663	sub sync_job(&) {
200	my ($job) = @_;	664	my ($job) = @_;
201		665
202	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
203	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
205		671
206	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	673
208	local $FREEZE = 1;	674	my $freeze_guard = freeze_mainloop;
209		675
210	my $busy = 1;	676	my $busy = 1;
211	my @res;	677	my @res;
212		678
213	(Coro::async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	681	@res = eval { $job->() };
215	warn $@ if $@;	682	error $@ if $@;
216	undef $busy;	683	undef $busy;
217	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
218		685
219	while ($busy) {	686	while ($busy) {
		687	if (Coro::nready) {
220	Coro::cede_notself;	688	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
222	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
223		697
224	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
225	} else {	699	} else {
226	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
227		701
228	$job->()	702	$job->()
229	}	703	}
230	}	704	}
231		705
232	=item $coro = cf::coro { BLOCK }	706	=item $coro = cf::async_ext { BLOCK }
233		707
234	Creates and returns a new coro. This coro is automcatially being canceled	708	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	709	extension calling this is being unloaded.
236		710
237	=cut	711	=cut
238		712
239	sub coro(&) {	713	sub async_ext(&) {
240	my $cb = shift;	714	my $cb = shift;
241		715
242	my $coro; $coro = async {	716	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		717
249	$coro->on_destroy (sub {	718	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	719	delete $EXT_CORO{$coro+0};
251	});	720	});
252	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
253		722
254	$coro	723	$coro
255	}	724	}
256		725
257	sub write_runtime {	726	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		727
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
261	or return;	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
262		732
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	733	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		734
267	aio_fsync $fh	735	sub post_fork {
268	and return;	736	reset_signals;
		737	}
269		738
270	close $fh	739	sub fork_call(&@) {
271	or return;	740	my ($cb, @args) = @_;
272		741
273	aio_rename "$runtime~", $runtime	742	# we seemingly have to make a local copy of the whole thing,
274	and return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
275		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
276	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
		918	}
		919
		920	=item cf::datalog type => key => value, ...
		921
		922	Log a datalog packet of the given type with the given key-value pairs.
		923
		924	=cut
		925
		926	sub datalog($@) {
		927	my ($type, %kv) = @_;
		928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	929	}
278		930
279	=back	931	=back
280		932
281	=cut	933	=cut
282		934
283	#############################################################################	935	#############################################################################
284		936
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
396		938
397	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
400		942
401	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	945	Deliantra).
404		946
405	=over 4	947	=over 4
406		948
407	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
408		950
…		…
452	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
453		995
454	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
456		998
457	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
459		1001
460	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
461		1003
462	=over 4	1004	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	1064	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	1065	our @CB_MAP = ();
524		1066
525	my %attachment;	1067	my %attachment;
526		1068
		1069	sub cf::attachable::thawer_merge {
		1070	# simply override everything except _meta
		1071	local $_[0]{_meta};
		1072	%{$_[0]} = %{$_[1]};
		1073	}
		1074
527	sub _attach_cb($$$$) {	1075	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	1076	my ($registry, $event, $prio, $cb) = @_;
529		1077
530	use sort 'stable';	1078	use sort 'stable';
531		1079
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
566		1114
567	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1119
572	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
574		1122
575	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
580		1128
581	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1131
584	} elsif (ref $type) {	1132	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
586		1134
587	} else {	1135	} else {
588	shift @arg;	1136	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
590	}	1138	}
591	}	1139	}
592	}	1140	}
593		1141
594	sub _object_attach {	1142	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
605	}	1153	}
606		1154
607	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
608	} else {	1156	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1158	}
611		1159
612	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
613	}	1161	}
614		1162
…		…
616	if (ref $_[0]) {	1164	if (ref $_[0]) {
617	_object_attach @_;	1165	_object_attach @_;
618	} else {	1166	} else {
619	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
620	}	1168	}
		1169	_recalc_want;
621	};	1170	};
622		1171
623	# all those should be optimised	1172	# all those should be optimised
624	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1178	reattach ($obj);
630	} else {	1179	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
632	}	1181	}
		1182	_recalc_want;
633	};	1183	};
634		1184
635	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
637		1187
…		…
652	";	1202	";
653	die if $@;	1203	die if $@;
654	}	1204	}
655		1205
656	our $override;	1206	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1208
659	sub override {	1209	sub override {
660	$override = 1;	1210	$override = 1;
661	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
662	}	1212	}
663		1213
664	sub do_invoke {	1214	sub do_invoke {
665	my $event = shift;	1215	my $event = shift;
666	my $callbacks = shift;	1216	my $callbacks = shift;
667		1217
668	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
669		1219
670	local $override;	1220	local $override;
671		1221
672	for (@$callbacks) {	1222	for (@$callbacks) {
673	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
674		1224
675	if ($@) {	1225	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1227	override;
679	}	1228	}
680		1229
681	return 1 if $override;	1230	return 1 if $override;
682	}	1231	}
683		1232
684	0	1233	0
685	}	1234	}
686		1235
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1237
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1239
691	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
692		1241
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1245
697	=back	1246	=back
698		1247
699	=cut	1248	=cut
700		1249
701	#############################################################################	1250	#############################################################################
702	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
703		1294
704	sub reattach {	1295	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1297	my ($obj) = @_;
		1298
		1299	# no longer needed after getting rid of delete_package?
		1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1301
708	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
709		1303
710	@$registry = ();	1304	@$registry = ();
711		1305
…		…
716	for (@$attach) {	1310	for (@$attach) {
717	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
719	}	1313	}
720	} else {	1314	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1316	}
723	}	1317	}
724	}	1318	}
725		1319
726	cf::attachable->attach (	1320	cf::attachable->attach (
727	prio => -1000000,	1321	prio => -1000000,
728	on_instantiate => sub {	1322	on_instantiate => sub {
729	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
730		1324
731	$data = from_json $data;	1325	$data = decode_json $data;
732		1326
733	for (@$data) {	1327	for (@$data) {
734	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
735		1329
736	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1346	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
754		1348
755	sync_job {	1349	sync_job {
756	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
759		1355
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1359	if ($cf::USE_FSYNC) {
		1360	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1361	aio_fsync $fh;
		1362	}
764	close $fh;	1363	aio_close $fh;
765		1364
766	if (@$objs) {	1365	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
		1370	if ($cf::USE_FSYNC) {
		1371	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
771	aio_fsync $fh;	1372	aio_fsync $fh;
		1373	}
772	close $fh;	1374	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
774	}	1376	}
775	} else {	1377	} else {
776	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
777	}	1379	}
778		1380
779	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1385	} else {
781	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
782	}	1387	}
783	} else {	1388	} else {
784	aio_unlink $filename;	1389	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
786	}	1391	}
787	}	1392	};
788	}	1393	}
789		1394
790	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
792		1397
…		…
804	or return;	1409	or return;
805		1410
806	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
808	or return;	1413	or return;
		1414
809	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
810	}	1417	}
811		1418
		1419	utf8::decode (my $decname = $filename);
		1420	trace sprintf "loading %s (%d,%d)\n",
		1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
812	return ($data, $av);	1424	($data, $av)
813	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
814		1432
815	#############################################################################	1433	#############################################################################
816	# command handling &c	1434	# command handling &c
817		1435
818	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1450	}
833		1451
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1453
836	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
837		1459
838	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
839	called.	1461	called.
840		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
841	=cut	1474	=cut
842		1475
843	sub register_extcmd {	1476	sub register_extcmd {
844	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
845		1478
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1479	$EXTCMD{$name} = $cb;
850	}	1480	}
		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
851		1489
852	cf::player->attach (	1490	cf::player->attach (
853	on_command => sub {	1491	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
855		1493
856	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
857	or return;	1495	or return;
858		1496
…		…
863	cf::override;	1501	cf::override;
864	},	1502	},
865	on_extcmd => sub {	1503	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
867		1505
868	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1507
870	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
876	} else {	1520	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1522	}
879		1523
880	cf::override;	1524	cf::override;
881	},	1525	},
882	);	1526	);
883		1527
884	sub register {	1528	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1529	sub cache_extensions {
891	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
892		1531
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1535	}
943	}	1536	};
944		1537
945	# remove extcmds	1538	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1539	}
947	delete $EXTCMD{$name};
948	}
949		1540
950	if (my $cb = $pkg->can ("unload")) {	1541	sub _ext_cfg_reg($$$$) {
951	eval {	1542	my ($rvar, $varname, $cfgname, $default) = @_;
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956		1543
957	Symbol::delete_package $pkg;	1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
958	}	1550	}
959		1551
960	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
961	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1561	next unless -r $path;
963	eval {	1562
964	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
965	1	1635	}
966	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
967	}	1648	};
968	}	1649	}
969		1650
970	#############################################################################	1651	#############################################################################
971	# load/save/clean perl data associated with a map
972		1652
973	*cf::mapsupport::on_clean = sub {	1653	=back
		1654
		1655	=head2 CORE EXTENSIONS
		1656
		1657	Functions and methods that extend core deliantra objects.
		1658
		1659	=cut
		1660
		1661	package cf::player;
		1662
		1663	use Coro::AIO;
		1664
		1665	=head3 cf::player
		1666
		1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
		1682
		1683	=item cf::player::find $login
		1684
		1685	Returns the given player object, loading it if necessary (might block).
		1686
		1687	=cut
		1688
		1689	sub playerdir($) {
		1690	"$PLAYERDIR/"
		1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1692	}
		1693
		1694	sub path($) {
		1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1696
		1697	(playerdir $login) . "/playerdata"
		1698	}
		1699
		1700	sub find_active($) {
		1701	$cf::PLAYER{$_[0]}
		1702	and $cf::PLAYER{$_[0]}->active
		1703	and $cf::PLAYER{$_[0]}
		1704	}
		1705
		1706	sub exists($) {
974	my ($map) = @_;	1707	my ($login) = @_;
975		1708
976	my $path = $map->tmpname;	1709	$cf::PLAYER{$login}
977	defined $path or return;	1710	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1711	}
990		1712
991	# TODO: compatibility cruft, remove when no longer needed	1713	sub find($) {
		1714	return $cf::PLAYER{$_[0]} || do {
		1715	my $login = $_[0];
		1716
		1717	my $guard = cf::lock_acquire "user_find:$login";
		1718
		1719	$cf::PLAYER{$_[0]} || do {
		1720	# rename old playerfiles to new ones
		1721	#TODO: remove when no longer required
		1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1725	aio_unlink +(playerdir $login) . "/$login.pl";
		1726
		1727	my $f = new_from_file cf::object::thawer path $login
		1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
		1735	$cf::PLAYER{$login} = $pl
		1736	}
		1737	}
		1738	}
		1739
992	cf::player->attach (	1740	cf::player->attach (
993	on_load => sub {	1741	on_load => sub {
994	my ($pl, $path) = @_;	1742	my ($pl, $path) = @_;
995		1743
996	for my $o (all_objects $pl->ob) {	1744	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1745	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1746
1000	%$o = %{ Storable::thaw pack "H*", $value };	1747	$pl->ob->current_weapon ($slots->[0]);
1001	}	1748	$pl->combat_ob ($slots->[1]);
1002	}	1749	$pl->ranged_ob ($slots->[2]);
1003	},	1750	},
1004	);	1751	);
1005		1752
1006	#############################################################################	1753	sub save($) {
		1754	my ($pl) = @_;
1007		1755
1008	=head2 CORE EXTENSIONS	1756	return if $pl->{deny_save};
1009		1757
1010	Functions and methods that extend core crossfire objects.	1758	my $path = path $pl;
		1759	my $guard = cf::lock_acquire "user_save:$path";
1011		1760
1012	=head3 cf::player	1761	return if $pl->{deny_save};
		1762
		1763	aio_mkdir playerdir $pl, 0770;
		1764	$pl->{last_save} = $cf::RUNTIME;
		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
		1771	$pl->save_pl ($path);
		1772	cf::cede_to_tick;
		1773	}
		1774
		1775	sub new($) {
		1776	my ($login) = @_;
		1777
		1778	my $self = create;
		1779
		1780	$self->ob->name ($login);
		1781	$self->{deny_save} = 1;
		1782
		1783	$cf::PLAYER{$login} = $self;
		1784
		1785	$self
		1786	}
		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
		1798	=item $pl->quit_character
		1799
		1800	Nukes the player without looking back. If logged in, the connection will
		1801	be destroyed. May block for a long time.
		1802
		1803	=cut
		1804
		1805	sub quit_character {
		1806	my ($pl) = @_;
		1807
		1808	my $name = $pl->ob->name;
		1809
		1810	$pl->{deny_save} = 1;
		1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1812
		1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
		1820	$pl->ns->destroy if $pl->ns;
		1821
		1822	my $path = playerdir $pl;
		1823	my $temp = "$path~$cf::RUNTIME~deleting~";
		1824	aio_rename $path, $temp;
		1825	delete $cf::PLAYER{$pl->ob->name};
		1826	$pl->destroy;
		1827
		1828	my $prefix = qr<^~\Q$name\E/>;
		1829
		1830	# nuke player maps
		1831	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1832
		1833	IO::AIO::aio_rmtree $temp;
		1834	}
		1835
		1836	=item $pl->kick
		1837
		1838	Kicks a player out of the game. This destroys the connection.
		1839
		1840	=cut
		1841
		1842	sub kick {
		1843	my ($pl, $kicker) = @_;
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1846	$pl->killer ("kicked");
		1847	$pl->ns->destroy;
		1848	}
		1849
		1850	=item cf::player::list_logins
		1851
		1852	Returns am arrayref of all valid playernames in the system, can take a
		1853	while and may block, so not sync_job-capable, ever.
		1854
		1855	=cut
		1856
		1857	sub list_logins {
		1858	my $dirs = aio_readdir $PLAYERDIR
		1859	or return [];
		1860
		1861	my @logins;
		1862
		1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
		1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1870	aio_read $fh, 0, 512, my $buf, 0 or next;
		1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
		1873
		1874	utf8::decode $login;
		1875	push @logins, $login;
		1876	}
		1877
		1878	\@logins
		1879	}
		1880
		1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
		1884
		1885	Returns an arrayref of map paths that are private for this
		1886	player. May block.
		1887
		1888	=cut
		1889
		1890	sub maps($) {
		1891	my ($pl) = @_;
		1892
		1893	$pl = ref $pl ? $pl->ob->name : $pl;
		1894
		1895	my $files = aio_readdir playerdir $pl
		1896	or return;
		1897
		1898	my @paths;
		1899
		1900	for (@$files) {
		1901	utf8::decode $_;
		1902	next if /\.(?:pl|pst)$/;
		1903	next unless /^$PATH_SEP/o;
		1904
		1905	push @paths, cf::map::normalise "~$pl/$_";
		1906	}
		1907
		1908	\@paths
		1909	}
		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
		1915	=item $player->ext_reply ($msgid, @msg)
		1916
		1917	Sends an ext reply to the player.
		1918
		1919	=cut
		1920
		1921	sub ext_reply($$@) {
		1922	my ($self, $id, @msg) = @_;
		1923
		1924	$self->ns->ext_reply ($id, @msg)
		1925	}
		1926
		1927	=item $player->ext_msg ($type, @msg)
		1928
		1929	Sends an ext event to the client.
		1930
		1931	=cut
		1932
		1933	sub ext_msg($$@) {
		1934	my ($self, $type, @msg) = @_;
		1935
		1936	$self->ns->ext_msg ($type, @msg);
		1937	}
		1938
		1939	=head3 cf::region
1013		1940
1014	=over 4	1941	=over 4
1015		1942
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1943	=cut
1021		1944
1022	sub cf::player::exists($) {	1945	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1946
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1947	=item cf::region::find_by_path $path
1028		1948
1029	Sends an ext reply to the player.	1949	Tries to decuce the likely region for a map knowing only its path.
1030		1950
1031	=cut	1951	=cut
1032		1952
1033	sub cf::player::ext_reply($$$%) {	1953	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1954	my ($path) = @_;
1035		1955
1036	$msg{msgid} = $id;	1956	$path =~ s/^~[^\/]*//; # skip ~login
1037		1957
1038	$self->send ("ext " . to_json \%msg);	1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
1039	}	1968	}
1040		1969
1041	=back	1970	=back
1042
1043		1971
1044	=head3 cf::map	1972	=head3 cf::map
1045		1973
1046	=over 4	1974	=over 4
1047		1975
…		…
1050	package cf::map;	1978	package cf::map;
1051		1979
1052	use Fcntl;	1980	use Fcntl;
1053	use Coro::AIO;	1981	use Coro::AIO;
1054		1982
		1983	use overload
		1984	'""' => \&as_string,
		1985	fallback => 1;
		1986
1055	our $MAX_RESET = 7200;	1987	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1988	our $DEFAULT_RESET = 3000;
1057		1989
1058	sub generate_random_map {	1990	sub generate_random_map {
		1991	my ($self, $rmp) = @_;
		1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
		1995	$self->_create_random_map ($rmp);
		1996	}
		1997
		1998	=item cf::map->register ($regex, $prio)
		1999
		2000	Register a handler for the map path matching the given regex at the
		2001	givne priority (higher is better, built-in handlers have priority 0, the
		2002	default).
		2003
		2004	=cut
		2005
		2006	sub register {
		2007	my (undef, $regex, $prio) = @_;
		2008	my $pkg = caller;
		2009
		2010	push @{"$pkg\::ISA"}, __PACKAGE__;
		2011
		2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2013	}
		2014
		2015	# also paths starting with '/'
		2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2017
		2018	sub thawer_merge {
		2019	my ($self, $merge) = @_;
		2020
		2021	# we have to keep some variables in memory intact
		2022	local $self->{path};
		2023	local $self->{load_path};
		2024
		2025	$self->SUPER::thawer_merge ($merge);
		2026	}
		2027
		2028	sub normalise {
1059	my ($path, $rmp) = @_;	2029	my ($path, $base) = @_;
1060		2030
1061	# mit "rum" bekleckern, nicht	2031	$path = "$path"; # make sure it's a string
1062	cf::map::_create_random_map	2032
		2033	$path =~ s/\.map$//;
		2034
		2035	# map plan:
		2036	#
		2037	# /! non-realised random map exit (special hack!)
		2038	# {... are special paths that are not being touched
		2039	# ?xxx/... are special absolute paths
		2040	# ?random/... random maps
		2041	# /... normal maps
		2042	# ~user/... per-player map of a specific user
		2043
		2044	$path =~ s/$PATH_SEP/\//go;
		2045
		2046	# treat it as relative path if it starts with
		2047	# something that looks reasonable
		2048	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2049	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2050
		2051	$base =~ s{[^/]+/?$}{};
		2052	$path = "$base/$path";
		2053	}
		2054
		2055	for ($path) {
		2056	redo if s{/\.?/}{/};
		2057	redo if s{/[^/]+/\.\./}{/};
		2058	}
		2059
1063	$path,	2060	$path
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})
1075	}	2061	}
1076		2062
1077	# and all this just because we cannot iterate over	2063	sub new_from_path {
1078	# all maps in C++...	2064	my (undef, $path, $base) = @_;
1079	sub change_all_map_light {	2065
		2066	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2067
		2068	$path = normalise $path, $base;
		2069
		2070	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2071	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2072	my $self = bless cf::map::new, $pkg;
		2073	$self->{path} = $path; $self->path ($path);
		2074	$self->init; # pass $1 etc.
		2075	return $self;
		2076	}
		2077	}
		2078
		2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2080	()
		2081	}
		2082
		2083	# may re-bless or do other evil things
		2084	sub init {
1080	my ($change) = @_;	2085	my ($self) = @_;
1081		2086
1082	$_->change_map_light ($change) for values %cf::MAP;	2087	$self
1083	}	2088	}
1084		2089
		2090	sub as_string {
		2091	my ($self) = @_;
		2092
		2093	"$self->{path}"
		2094	}
		2095
		2096	# the displayed name, this is a one way mapping
		2097	sub visible_name {
		2098	&as_string
		2099	}
		2100
		2101	# the original (read-only) location
		2102	sub load_path {
		2103	my ($self) = @_;
		2104
		2105	"$MAPDIR/$self->{path}.map"
		2106	}
		2107
		2108	# the temporary/swap location
		2109	sub save_path {
		2110	my ($self) = @_;
		2111
		2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2113	"$TMPDIR/$path.map"
		2114	}
		2115
		2116	# the unique path, undef == no special unique path
		2117	sub uniq_path {
		2118	my ($self) = @_;
		2119
		2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2121	"$UNIQUEDIR/$path"
		2122	}
		2123
		2124	sub decay_objects {
		2125	my ($self) = @_;
		2126
		2127	return if $self->{deny_reset};
		2128
		2129	$self->do_decay_objects;
		2130	}
		2131
		2132	sub unlink_save {
		2133	my ($self) = @_;
		2134
		2135	utf8::encode (my $save = $self->save_path);
		2136	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2137	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2138	}
		2139
1085	sub try_load_header($) {	2140	sub load_header_from($) {
1086	my ($path) = @_;	2141	my ($self, $path) = @_;
1087		2142
1088	utf8::encode $path;	2143	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1090	or return;	2145	or return;
1091		2146
1092	my $map = cf::map::new	2147	$self->_load_header ($f)
1093	or return;	2148	or return;
1094		2149
1095	$map->load_header ($path)	2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
		2153	$self->{load_path} = $path;
		2154
		2155	1
		2156	}
		2157
		2158	# used to laod the header of an original map
		2159	sub load_header_orig {
		2160	my ($self) = @_;
		2161
		2162	$self->load_header_from ($self->load_path)
		2163	}
		2164
		2165	# used to laod the header of an instantiated map
		2166	sub load_header_temp {
		2167	my ($self) = @_;
		2168
		2169	$self->load_header_from ($self->save_path)
		2170	}
		2171
		2172	# called after loading the header from an instantiated map
		2173	sub prepare_temp {
		2174	my ($self) = @_;
		2175
		2176	$self->last_access ((delete $self->{last_access})
		2177	|| $cf::RUNTIME); #d#
		2178	# safety
		2179	$self->{instantiate_time} = $cf::RUNTIME
		2180	if $self->{instantiate_time} > $cf::RUNTIME;
		2181	}
		2182
		2183	# called after loading the header from an original map
		2184	sub prepare_orig {
		2185	my ($self) = @_;
		2186
		2187	$self->{load_original} = 1;
		2188	$self->{instantiate_time} = $cf::RUNTIME;
		2189	$self->last_access ($cf::RUNTIME);
		2190	$self->instantiate;
		2191	}
		2192
		2193	sub load_header {
		2194	my ($self) = @_;
		2195
		2196	if ($self->load_header_temp) {
		2197	$self->prepare_temp;
		2198	} else {
		2199	$self->load_header_orig
1096	or return;	2200	or return;
		2201	$self->prepare_orig;
		2202	}
1097		2203
1098	$map->{load_path} = $path;	2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
1099		2206
1100	$map	2207	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2208	unless $self->default_region;
1102		2209
		2210	1
		2211	}
		2212
		2213	sub find;
1103	sub find_map {	2214	sub find {
1104	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1105		2216
1106	#warn "find_map<$path,$origin>\n";#d#	2217	cf::cede_to_tick;
1107		2218
1108	$path = new cf::path $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1109	my $key = $path->as_string;
1110		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2222	my $guard2 = cf::lock_acquire "map_find:$path";
		2223
1111	$cf::MAP{$key} || do {	2224	$cf::MAP{$path} || do {
1112	# do it the slow way	2225	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2226	or return;
1127		2227
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2228	$map->{last_save} = $cf::RUNTIME;
1139		2229
1140	if ($map->should_reset) {	2230	$map->load_header
		2231	or return;
		2232
		2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2234	# doing this can freeze the server in a sync job, obviously
		2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1141	$map->reset;	2238	$map->reset;
1142	$map = find_map $path;	2239	return find $path;
1143	}	2240	}
1144		2241
1145	$cf::MAP{$key} = $map	2242	$cf::MAP{$path} = $map
1146	}	2243	}
1147	}	2244	}
		2245
		2246	sub pre_load { }
		2247	#sub post_load { } # XS
1148		2248
1149	sub load {	2249	sub load {
1150	my ($self) = @_;	2250	my ($self) = @_;
1151		2251
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2252	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2253
1156	my $path = $self->{path};	2254	my $path = $self->{path};
1157		2255
		2256	{
		2257	my $guard = cf::lock_acquire "map_data:$path";
		2258
		2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
		2261
1158	$self->alloc;	2262	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2263
		2264	$self->pre_load;
		2265	cf::cede_to_tick;
		2266
		2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1160	or return;	2271	or return;
1161		2272
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1163	if delete $self->{load_original};	2274	if delete $self->{load_original};
1164		2275
1165	if (my $uniq = $path->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2277	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2280	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1170	}	2285	}
1171	}
1172		2286
		2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1173	# now do the right thing for maps	2296	# now do the right thing for maps
1174	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2299	unless $self->difficulty;
1186	$self->activate;	2300	cf::cede_to_tick;
		2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
		2312	}
		2313
		2314	$self->post_load;
		2315
1187	}	2316	1
1188
1189	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2317	}
1191		2318
1192	sub load_map_sync {	2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
		2322	sub customise_for {
		2323	my ($self, $ob) = @_;
		2324
		2325	return find "~" . $ob->name . "/" . $self->{path}
		2326	if $self->per_player;
		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
		2331	$self
		2332	}
		2333
		2334	sub find_sync {
1193	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1194		2336
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
1196		2340
1197	cf::sync_job {	2341	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2342	}
1199	or return;	2343
		2344	sub do_load_sync {
		2345	my ($map) = @_;
		2346
		2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
1200	$map->load;	2351	$map->load;
1201	$map	2352	}
		2353
		2354	our %MAP_PREFETCH;
		2355	our $MAP_PREFETCHER = undef;
		2356
		2357	sub find_async {
		2358	my ($path, $origin, $load) = @_;
		2359
		2360	$path = normalise $path, $origin;
		2361
		2362	if (my $map = $cf::MAP{$path}) {
		2363	return $map if !$load || $map->linkable;
		2364	}
		2365
		2366	$MAP_PREFETCH{$path} |= $load;
		2367
		2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
		2371	while (%MAP_PREFETCH) {
		2372	while (my ($k, $v) = each %MAP_PREFETCH) {
		2373	if (my $map = find $k) {
		2374	$map->load if $v;
		2375	}
		2376
		2377	delete $MAP_PREFETCH{$k};
		2378	}
		2379	}
		2380	undef $MAP_PREFETCHER;
		2381	};
		2382	$MAP_PREFETCHER->prio (6);
		2383
		2384	()
		2385	}
		2386
		2387	# common code, used by both ->save and ->swapout
		2388	sub _save {
		2389	my ($self) = @_;
		2390
		2391	$self->{last_save} = $cf::RUNTIME;
		2392
		2393	return unless $self->dirty;
		2394
		2395	my $save = $self->save_path; utf8::encode $save;
		2396	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2397
		2398	$self->{load_path} = $save;
		2399
		2400	return if $self->{deny_save};
		2401
		2402	local $self->{last_access} = $self->last_access;#d#
		2403
		2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
		2406	$_->contr->save for $self->players;
		2407	};
		2408
		2409	cf::get_slot 0.02;
		2410
		2411	if ($uniq) {
		2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2414	} else {
		2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2416	}
1203	}	2417	}
1204		2418
1205	sub save {	2419	sub save {
1206	my ($self) = @_;	2420	my ($self) = @_;
1207		2421
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2423
1211	$self->{last_save} = $cf::RUNTIME;	2424	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2425	}
1226		2426
1227	sub swap_out {	2427	sub swap_out {
1228	my ($self) = @_;	2428	my ($self) = @_;
1229		2429
		2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1230	return if $self->players;	2434	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
1234	$self->save;	2442	$self->_save;
		2443
		2444	# then free the map
1235	$self->clear;	2445	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2446	}
1238		2447
1239	sub reset_at {	2448	sub reset_at {
1240	my ($self) = @_;	2449	my ($self) = @_;
1241		2450
1242	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1245		2453
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2456
1250	$time + $to	2457	$time + $to
1251	}	2458	}
1252		2459
1253	sub should_reset {	2460	sub should_reset {
1254	my ($self) = @_;	2461	my ($self) = @_;
1255		2462
1256	$self->reset_at <= $cf::RUNTIME	2463	$self->reset_at <= $cf::RUNTIME
1257	}	2464	}
1258		2465
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2466	sub reset {
1281	my ($self) = @_;	2467	my ($self) = @_;
1282		2468
		2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2470
1283	return if $self->players;	2471	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2472
1286	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
		2474
		2475	$self->state (cf::MAP_SWAPPED);
		2476
		2477	# need to save uniques path
		2478	unless ($self->{deny_save}) {
		2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2480
		2481	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2482	if $uniq;
		2483	}
1287		2484
1288	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1289		2486
		2487	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2488	$_->clear_links_to ($self) for values %cf::MAP;
		2489	$self->clear;
1291		2490
1292	$self->unlink_save;	2491	$self->unlink_save;
1293	$self->destroy;	2492	$self->destroy;
1294	}	2493	}
1295		2494
1296	sub customise_for {	2495	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2496
1299	if ($map->per_player) {	2497	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2498	my ($self) = @_;
		2499
1301	}	2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2502
1303	$map	2503	delete $cf::MAP{$self->path};
1304	}
1305		2504
1306	sub emergency_save {	2505	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2506
1309	warn "enter emergency map save\n";	2507	bless $self, "cf::map::wrap";
		2508	delete $self->{deny_reset};
		2509	$self->{deny_save} = 1;
		2510	$self->reset_timeout (1);
		2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2512
1311	cf::sync_job {	2513	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2514	}
1315		2515
1316	warn "end emergency map save\n";	2516	$self->reset; # polite request, might not happen
		2517	}
		2518
		2519	=item $maps = cf::map::tmp_maps
		2520
		2521	Returns an arrayref with all map paths of currently instantiated and saved
		2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
		2527	[
		2528	map {
		2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
		2535	}
		2536
		2537	=item $maps = cf::map::random_maps
		2538
		2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
		2541
		2542	=cut
		2543
		2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
		2553	}
		2554
		2555	=item cf::map::unique_maps
		2556
		2557	Returns an arrayref of paths of all shared maps that have
		2558	instantiated unique items. May block.
		2559
		2560	=cut
		2561
		2562	sub unique_maps() {
		2563	[
		2564	map {
		2565	utf8::decode $_;
		2566	s/\.map$//; # TODO future compatibility hack
		2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2568	? ()
		2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
		2571	]
		2572	}
		2573
		2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
		2605
		2606	=back
		2607
		2608	=head3 cf::object
		2609
		2610	=cut
		2611
		2612	package cf::object;
		2613
		2614	=over 4
		2615
		2616	=item $ob->inv_recursive
		2617
		2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
		2620
		2621	=cut
		2622
		2623	sub inv_recursive_;
		2624	sub inv_recursive_ {
		2625	map { $_, inv_recursive_ $_->inv } @_
		2626	}
		2627
		2628	sub inv_recursive {
		2629	inv_recursive_ inv $_[0]
		2630	}
		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
1317	}	2658	}
1318		2659
1319	package cf;	2660	package cf;
1320		2661
1321	=back	2662	=back
1322
1323		2663
1324	=head3 cf::object::player	2664	=head3 cf::object::player
1325		2665
1326	=over 4	2666	=over 4
1327		2667
…		…
1330	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1331	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1332	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1333		2673
1334	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1335		2689
1336	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1337	# with dialog boxes.	2691	# with dialog boxes.
1338	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1339	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1341		2695
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2697
1344	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1346	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1349	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1350	}	2723	}
1351		2724
1352	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1353		2726
1354	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2736	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2737	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2738	: $cf::CFG{"may_$access"})
1366	}	2739	}
1367		2740
		2741	=item $player_object->enter_link
		2742
		2743	Freezes the player and moves him/her to a special map (C<{link}>).
		2744
		2745	The player should be reasonably safe there for short amounts of time (e.g.
		2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
		2749
		2750	Will never block.
		2751
		2752	=item $player_object->leave_link ($map, $x, $y)
		2753
		2754	Moves the player out of the special C<{link}> map onto the specified
		2755	map. If the map is not valid (or omitted), the player will be moved back
		2756	to the location he/she was before the call to C<enter_link>, or, if that
		2757	fails, to the emergency map position.
		2758
		2759	Might block.
		2760
		2761	=cut
		2762
		2763	sub link_map {
		2764	unless ($LINK_MAP) {
		2765	$LINK_MAP = cf::map::find "{link}"
		2766	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2767	$LINK_MAP->load;
		2768	}
		2769
		2770	$LINK_MAP
		2771	}
		2772
1368	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2774	my ($self) = @_;
1370		2775
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
		2777
		2778	++$self->{_link_recursion};
		2779
		2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2781
		2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2783	if $self->map && $self->map->{path} ne "{link}";
		2784
		2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1378	}	2786	}
1379		2787
1380	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
1382		2790
		2791	return unless $self->contr->active;
		2792
1383	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1384		2794
1385	unless ($map) {	2795	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2796	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2797	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2798	$map = cf::map::find $map;
1391		2799
1392	unless ($map) {	2800	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2801	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2802	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2803	or die "FATAL: cannot load emergency map\n";
1396	}	2804	}
1397	}	2805	}
1398		2806
1399	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1400	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1401		2809
1402	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1405		2813
1406	$map->load;	2814	$map->load;
1407		2815
		2816	return unless $self->contr->active;
		2817
		2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2819	if ($self->enter_map ($map, $x, $y)) {
		2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
1408	$self->activate_recursive;	2823	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	2824	}
1410	}
1411		2825
1412	=item $player_object->goto_map ($map, $x, $y)	2826	}
1413		2827
1414	=cut	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1415		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
		2839	=cut
		2840
		2841	our $GOTOGEN;
		2842
1416	sub cf::object::player::goto_map {	2843	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2854
1419	$self->enter_link;	2855	$self->enter_link;
1420		2856
1421	(Coro::async {	2857	(async {
1422	$path = new cf::path $path;	2858	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2859
1424	my $map = cf::map::find_map $path->as_string;	2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
		2879	my $map = eval {
		2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
		2885	} else {
		2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
1426		2888
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2889	$map
		2890	};
1429		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
		2895	}
		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1431	})->prio (1);	2903	})->prio (1);
1432	}	2904	}
1433		2905
1434	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1435		2907
…		…
1437		2909
1438	sub parse_random_map_params {	2910	sub parse_random_map_params {
1439	my ($spec) = @_;	2911	my ($spec) = @_;
1440		2912
1441	my $rmp = { # defaults	2913	my $rmp = { # defaults
1442	xsize => 10,	2914	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2915	ysize => (cf::rndm 15, 40),
		2916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2917	#layout => string,
1444	};	2918	};
1445		2919
1446	for (split /\n/, $spec) {	2920	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2921	my ($k, $v) = split /\s+/, $_, 2;
1448		2922
…		…
1460	# that depends on the exit object	2934	# that depends on the exit object
1461		2935
1462	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
1463		2937
1464	if ($exit->map) {	2938	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2939	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1469	}	2945	}
1470		2946
1471	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1472		2948
1473	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1474	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
		2951	my $meta = "$RANDOMDIR/$md5.meta";
1475		2952
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
		2955	undef $fh;
		2956	aio_rename "$meta~", $meta;
1478		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1479	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1481	}	2964	}
1482	}	2965	}
1483		2966
1484	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
1486		2969
1487	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1488		2971
1489	$self->enter_link;	2972	$self->enter_link;
1490		2973
1491	(Coro::async {	2974	(async {
		2975	$Coro::current->{desc} = "enter_exit";
		2976
1492	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
1493		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
1494	prepare_random_map $exit	2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
1495	if $exit->slaying eq "/!";	2994	$map = $exit->slaying;
1496		2995
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2996	} elsif ($slaying eq '!up') {
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
1499		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
		3007	$self->goto ($map, $x, $y);
		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
1500	1;	3013	1
1501	}) {	3014	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1503	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	3017	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1506		3019
1507	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
1508	$self->leave_link;	3021	$self->leave_link;
1509	}	3022	}
1510	})->prio (1);	3023	})->prio (1);
1511	}	3024	}
1512		3025
…		…
1523		3036
1524	sub cf::client::send_drawinfo {	3037	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	3038	my ($self, $text, $flags) = @_;
1526		3039
1527	utf8::encode $text;	3040	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	3042	}
1530		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
		3231	=item $client->ext_msg ($type, @msg)
		3232
		3233	Sends an ext event to the client.
		3234
		3235	=cut
		3236
		3237	sub cf::client::ext_msg($$@) {
		3238	my ($self, $type, @msg) = @_;
		3239
		3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3241	}
		3242
		3243	=item $client->ext_reply ($msgid, @msg)
		3244
		3245	Sends an ext reply to the client.
		3246
		3247	=cut
		3248
		3249	sub cf::client::ext_reply($$@) {
		3250	my ($self, $id, @msg) = @_;
		3251
		3252	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3253	}
1531		3254
1532	=item $success = $client->query ($flags, "text", \&cb)	3255	=item $success = $client->query ($flags, "text", \&cb)
1533		3256
1534	Queues a query to the client, calling the given callback with	3257	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3258	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3259	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		3260
1538	Queries can fail, so check the return code. Or don't, as queries will become	3261	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	3262	become reliable at some point in the future.
1540		3263
1541	=cut	3264	=cut
1542		3265
1543	sub cf::client::query {	3266	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	3267	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	3275	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3276	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		3277
1555	$self->send_packet ($self->{query_queue}[0][0])	3278	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	3279	if @{ $self->{query_queue} } == 1;
		3280
		3281	1
1557	}	3282	}
1558		3283
1559	cf::client->attach (	3284	cf::client->attach (
		3285	on_connect => sub {
		3286	my ($ns) = @_;
		3287
		3288	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3289	},
1560	on_reply => sub {	3290	on_reply => sub {
1561	my ($ns, $msg) = @_;	3291	my ($ns, $msg) = @_;
1562		3292
1563	# this weird shuffling is so that direct followup queries	3293	# this weird shuffling is so that direct followup queries
1564	# get handled first	3294	# get handled first
1565	my $queue = delete $ns->{query_queue};	3295	my $queue = delete $ns->{query_queue}
		3296	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		3297
1567	(shift @$queue)->[1]->($msg);	3298	(shift @$queue)->[1]->($msg);
		3299	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		3300
1569	push @{ $ns->{query_queue} }, @$queue;	3301	push @{ $ns->{query_queue} }, @$queue;
1570		3302
1571	if (@{ $ns->{query_queue} } == @$queue) {	3303	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	3304	if (@$queue) {
…		…
1574	} else {	3306	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3307	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	3308	}
1577	}	3309	}
1578	},	3310	},
		3311	on_exticmd => sub {
		3312	my ($ns, $buf) = @_;
		3313
		3314	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3315
		3316	if (ref $msg) {
		3317	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3318
		3319	my @reply;
		3320
		3321	if (my $cb = $EXTICMD{$type}) {
		3322	@reply = $cb->($ns, @payload);
		3323	}
		3324
		3325	$ns->ext_reply ($reply, @reply)
		3326	if $reply;
		3327
		3328	} else {
		3329	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3330	}
		3331
		3332	cf::override;
		3333	},
1579	);	3334	);
1580		3335
1581	=item $client->coro (\&cb)	3336	=item $client->async (\&cb)
1582		3337
1583	Create a new coroutine, running the specified callback. The coroutine will	3338	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	3339	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	3340	or loss of connection).
1586		3341
1587	=cut	3342	=cut
1588		3343
1589	sub cf::client::coro {	3344	sub cf::client::async {
1590	my ($self, $cb) = @_;	3345	my ($self, $cb) = @_;
1591		3346
1592	my $coro; $coro = async {	3347	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		3348
1599	$coro->on_destroy (sub {	3349	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	3350	delete $self->{_coro}{$coro+0};
1601	});	3351	});
1602		3352
…		…
1604		3354
1605	$coro	3355	$coro
1606	}	3356	}
1607		3357
1608	cf::client->attach (	3358	cf::client->attach (
1609	on_destroy => sub {	3359	on_client_destroy => sub {
1610	my ($ns) = @_;	3360	my ($ns) = @_;
1611		3361
1612	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3362	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1613	},	3363	},
1614	);	3364	);
…		…
1629	our $safe = new Safe "safe";	3379	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	3380	our $safe_hole = new Safe::Hole;
1631		3381
1632	$SIG{FPE} = 'IGNORE';	3382	$SIG{FPE} = 'IGNORE';
1633		3383
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3384	$safe->permit_only (Opcode::opset qw(
		3385	:base_core :base_mem :base_orig :base_math :base_loop
		3386	grepstart grepwhile mapstart mapwhile
		3387	sort time
		3388	));
1635		3389
1636	# here we export the classes and methods available to script code	3390	# here we export the classes and methods available to script code
1637		3391
1638	=pod	3392	=pod
1639		3393
1640	The following fucntions and emthods are available within a safe environment:	3394	The following functions and methods are available within a safe environment:
1641		3395
1642	cf::object contr pay_amount pay_player map	3396	cf::object
		3397	contr pay_amount pay_player map x y force_find force_add destroy
		3398	insert remove name archname title slaying race decrease split
		3399	value
		3400
1643	cf::object::player player	3401	cf::object::player
1644	cf::player peaceful	3402	player
1645	cf::map trigger	3403
		3404	cf::player
		3405	peaceful
		3406
		3407	cf::map
		3408	trigger
1646		3409
1647	=cut	3410	=cut
1648		3411
1649	for (	3412	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3413	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3414	insert remove inv nrof name archname title slaying race
		3415	decrease split destroy change_exp value msg lore send_msg)],
1651	["cf::object::player" => qw(player)],	3416	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3417	["cf::player" => qw(peaceful send_msg)],
1653	["cf::map" => qw(trigger)],	3418	["cf::map" => qw(trigger)],
1654	) {	3419	) {
1655	no strict 'refs';
1656	my ($pkg, @funs) = @$_;	3420	my ($pkg, @funs) = @$_;
1657	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3421	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1658	for @funs;	3422	for @funs;
1659	}	3423	}
1660		3424
…		…
1675		3439
1676	my $qcode = $code;	3440	my $qcode = $code;
1677	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3441	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1678	$qcode =~ s/\n/\\n/g;	3442	$qcode =~ s/\n/\\n/g;
1679		3443
		3444	%vars = (_dummy => 0) unless %vars;
		3445
		3446	my @res;
1680	local $_;	3447	local $_;
1681	local @safe::cf::_safe_eval_args = values %vars;
1682		3448
1683	my $eval =	3449	my $eval =
1684	"do {\n"	3450	"do {\n"
1685	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3451	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1686	. "#line 0 \"{$qcode}\"\n"	3452	. "#line 0 \"{$qcode}\"\n"
1687	. $code	3453	. $code
1688	. "\n}"	3454	. "\n}"
1689	;	3455	;
1690		3456
		3457	if ($CFG{safe_eval}) {
1691	sub_generation_inc;	3458	sub_generation_inc;
		3459	local @safe::cf::_safe_eval_args = values %vars;
1692	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3460	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1693	sub_generation_inc;	3461	sub_generation_inc;
		3462	} else {
		3463	local @cf::_safe_eval_args = values %vars;
		3464	@res = wantarray ? eval eval : scalar eval $eval;
		3465	}
1694		3466
1695	if ($@) {	3467	if ($@) {
1696	warn "$@";	3468	warn "$@",
1697	warn "while executing safe code '$code'\n";	3469	"while executing safe code '$code'\n",
1698	warn "with arguments " . (join " ", %vars) . "\n";	3470	"with arguments " . (join " ", %vars) . "\n";
1699	}	3471	}
1700		3472
1701	wantarray ? @res : $res[0]	3473	wantarray ? @res : $res[0]
1702	}	3474	}
1703		3475
…		…
1717	=cut	3489	=cut
1718		3490
1719	sub register_script_function {	3491	sub register_script_function {
1720	my ($fun, $cb) = @_;	3492	my ($fun, $cb) = @_;
1721		3493
1722	no strict 'refs';	3494	$fun = "safe::$fun" if $CFG{safe_eval};
1723	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3495	*$fun = $safe_hole->wrap ($cb);
1724	}	3496	}
1725		3497
1726	=back	3498	=back
1727		3499
1728	=cut	3500	=cut
1729		3501
1730	#############################################################################	3502	#############################################################################
		3503	# the server's init and main functions
1731		3504
1732	=head2 EXTENSION DATABASE SUPPORT	3505	our %FACEHASH; # hash => idx, #d# HACK for http server
1733		3506
1734	Crossfire maintains a very simple database for extension use. It can	3507	# internal api, not fianlised
1735	currently store anything that can be serialised using Storable, which	3508	sub add_face {
1736	excludes objects.	3509	my ($name, $type, $data) = @_;
1737		3510
1738	The parameter C<$family> should best start with the name of the extension	3511	my $idx = cf::face::find $name;
1739	using it, it should be unique.
1740		3512
1741	=over 4	3513	if ($idx) {
1742		3514	delete $FACEHASH{cf::face::get_chksum $idx};
1743	=item $hashref = cf::db_get $family
1744
1745	Return a hashref for use by the extension C<$family>, which can be
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748
1749	=item $value = cf::db_get $family => $key
1750
1751	Returns a single value from the database
1752
1753	=item cf::db_put $family => $hashref
1754
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});
1806
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {
1813	@_ >= 2
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817
1818	sub db_put($$;$) {
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {	3515	} else {
1822	$DB->{$_[0]} = $_[1];	3516	$idx = cf::face::alloc $name;
1823	}	3517	}
1824	db_dirty;	3518
		3519	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3520
		3521	cf::face::set_type $idx, $type;
		3522	cf::face::set_data $idx, 0, $data, $hash;
		3523	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3524	$FACEHASH{$hash} = $idx;#d#
		3525
		3526	$idx
		3527	}
		3528
		3529	sub load_facedata($) {
		3530	my ($path) = @_;
		3531
		3532	# HACK to clear player env face cache, we need some signal framework
		3533	# for this (global event?)
		3534	%ext::player_env::MUSIC_FACE_CACHE = ();
		3535
		3536	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3537
		3538	trace "loading facedata from $path\n";
		3539
		3540	my $facedata = decode_storable load_file $path;
		3541
		3542	$facedata->{version} == 2
		3543	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3544
		3545	cf::cede_to_tick;
		3546
1825	}	3547	{
		3548	my $faces = $facedata->{faceinfo};
1826		3549
1827	cf::global->attach (	3550	for my $face (sort keys %$faces) {
1828	prio => 10000,	3551	my $info = $faces->{$face};
1829	on_cleanup => sub {	3552	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1830	db_sync;	3553
		3554	cf::face::set_visibility $idx, $info->{visibility};
		3555	cf::face::set_magicmap $idx, $info->{magicmap};
		3556	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3557	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3558	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3559	$FACEHASH{$info->{hash64}} = $idx;#d#
		3560
		3561	cf::cede_to_tick;
1831	},	3562	}
		3563
		3564	while (my ($face, $info) = each %$faces) {
		3565	next unless $info->{smooth};
		3566
		3567	my $idx = cf::face::find $face
		3568	or next;
		3569
		3570	if (my $smooth = cf::face::find $info->{smooth}) {
		3571	cf::face::set_smooth $idx, $smooth;
		3572	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3573	} else {
		3574	error "smooth face '$info->{smooth}' not found for face '$face'";
		3575	}
		3576
		3577	cf::cede_to_tick;
		3578	}
		3579	}
		3580
		3581	{
		3582	my $anims = $facedata->{animinfo};
		3583
		3584	while (my ($anim, $info) = each %$anims) {
		3585	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3586	cf::cede_to_tick;
		3587	}
		3588
		3589	cf::anim::invalidate_all; # d'oh
		3590	}
		3591
		3592	{
		3593	my $res = $facedata->{resource};
		3594
		3595	while (my ($name, $info) = each %$res) {
		3596	if (defined (my $type = $info->{type})) {
		3597	# TODO: different hash - must free and use new index, or cache ixface data queue
		3598	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3599
		3600	cf::face::set_type $idx, $type;
		3601	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3602	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3603	$FACEHASH{$info->{hash}} = $idx;#d#
		3604	} else {
		3605	# $RESOURCE{$name} = $info; # unused
		3606	}
		3607
		3608	cf::cede_to_tick;
		3609	}
		3610	}
		3611
		3612	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3613
		3614	1
		3615	}
		3616
		3617	register_exticmd fx_want => sub {
		3618	my ($ns, $want) = @_;
		3619
		3620	while (my ($k, $v) = each %$want) {
		3621	$ns->fx_want ($k, $v);
		3622	}
		3623	};
		3624
		3625	sub load_resource_file($) {
		3626	my $guard = lock_acquire "load_resource_file";
		3627
		3628	my $status = load_resource_file_ $_[0];
		3629	get_slot 0.1, 100;
		3630	cf::arch::commit_load;
		3631
		3632	$status
		3633	}
		3634
		3635	sub reload_exp_table {
		3636	_reload_exp_table;
		3637
		3638	add_face "res/exp_table" => FT_RSRC,
		3639	JSON::XS->new->utf8->canonical->encode (
		3640	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3641	);
		3642	}
		3643
		3644	sub reload_materials {
		3645	_reload_materials;
		3646	}
		3647
		3648	sub reload_regions {
		3649	# HACK to clear player env face cache, we need some signal framework
		3650	# for this (global event?)
		3651	%ext::player_env::MUSIC_FACE_CACHE = ();
		3652
		3653	load_resource_file "$MAPDIR/regions"
		3654	or die "unable to load regions file\n";
		3655
		3656	for (cf::region::list) {
		3657	$_->{match} = qr/$_->{match}/
		3658	if exists $_->{match};
		3659	}
		3660	}
		3661
		3662	sub reload_facedata {
		3663	load_facedata "$DATADIR/facedata"
		3664	or die "unable to load facedata\n";
		3665	}
		3666
		3667	sub reload_archetypes {
		3668	load_resource_file "$DATADIR/archetypes"
		3669	or die "unable to load archetypes\n";
		3670
		3671	add_face "res/skill_info" => FT_RSRC,
		3672	JSON::XS->new->utf8->canonical->encode (
		3673	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3674	);
		3675	add_face "res/spell_paths" => FT_RSRC,
		3676	JSON::XS->new->utf8->canonical->encode (
		3677	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3678	);
		3679	}
		3680
		3681	sub reload_treasures {
		3682	load_resource_file "$DATADIR/treasures"
		3683	or die "unable to load treasurelists\n";
		3684	}
		3685
		3686	sub reload_sound {
		3687	trace "loading sound config from $DATADIR/sound\n";
		3688
		3689	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3690
		3691	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3692	my $sound = $soundconf->{compat}[$_]
		3693	or next;
		3694
		3695	my $face = cf::face::find "sound/$sound->[1]";
		3696	cf::sound::set $sound->[0] => $face;
		3697	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3698	}
		3699
		3700	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3701	my $face = cf::face::find "sound/$v";
		3702	cf::sound::set $k => $face;
		3703	}
		3704	}
		3705
		3706	sub reload_pod {
		3707	trace "loading pods $PODDIR\n";
		3708
		3709	my @command_help;
		3710
		3711	for (
		3712	[0, "command_help"],
		3713	[1, "emote_help"],
		3714	[2, "dmcommand_help"],
		3715	) {
		3716	my ($type, $path) = @$_;
		3717
		3718	my $paragraphs = &cf::pod::load_pod ("$PODDIR/$path.pod")
		3719	or die "unable to load $path";
		3720
		3721	my $level = 1e9;
		3722
		3723	for my $par (@$paragraphs) {
		3724	if ($par->{type} eq "head2") {
		3725	# this code taken almost verbatim from DC/Protocol.pm
		3726
		3727	if ($par->{markup} =~ /^(\S+) (?:\s+ \( ([^\)]*) \) )?/x) {
		3728	my $cmd = $1;
		3729	my @args = split /\|/, $2;
		3730	@args = (".*") unless @args;
		3731
		3732	$_ = $_ eq ".*" ? "" : " $_"
		3733	for @args;
		3734
		3735	my @variants = map "$cmd$_", sort { (length $a) <=> (length $b) } @args;
		3736
		3737	push @command_help, [$type, \@variants, &cf::pod::as_cfpod ([$par])];
		3738	$level = $par->{level};
		3739	} else {
		3740	error "$par->{markup}: unparsable command heading";
		3741	}
		3742	} elsif ($par->{level} > $level) {
		3743	$command_help[-1][2] .= &cf::pod::as_cfpod ([$par]);
		3744	}
		3745
		3746	cf::cede_to_tick;
		3747	}
		3748	}
		3749
		3750	@command_help = sort {
		3751	$a->[0] <=> $b->[0]
		3752	or $a->[1] cmp $b->[1]
		3753	} @command_help;
		3754
		3755	cf::cede_to_tick;
		3756
		3757	add_face "res/command_help" => FT_RSRC,
		3758	JSON::XS->new->utf8->encode (\@command_help);
		3759	}
		3760
		3761	sub reload_resources {
		3762	trace "reloading resource files...\n";
		3763
		3764	reload_materials;
		3765	reload_facedata;
		3766	reload_exp_table;
		3767	reload_sound;
		3768	reload_archetypes;
		3769	reload_regions;
		3770	reload_treasures;
		3771	reload_pod;
		3772
		3773	trace "finished reloading resource files\n";
		3774	}
		3775
		3776	sub reload_config {
		3777	trace "reloading config file...\n";
		3778
		3779	my $config = load_file "$CONFDIR/config";
		3780	utf8::decode $config;
		3781	*CFG = decode_yaml $config;
		3782
		3783	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3784
		3785	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3786	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3787
		3788	if (exists $CFG{mlockall}) {
		3789	eval {
		3790	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3791	and die "WARNING: m(un)lockall failed: $!\n";
		3792	};
		3793	warn $@ if $@;
		3794	}
		3795	}
		3796
		3797	sub pidfile() {
		3798	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3799	or die "$PIDFILE: $!";
		3800	flock $fh, &Fcntl::LOCK_EX
		3801	or die "$PIDFILE: flock: $!";
		3802	$fh
		3803	}
		3804
		3805	# make sure only one server instance is running at any one time
		3806	sub atomic {
		3807	my $fh = pidfile;
		3808
		3809	my $pid = <$fh>;
		3810	kill 9, $pid if $pid > 0;
		3811
		3812	seek $fh, 0, 0;
		3813	print $fh $$;
		3814	}
		3815
		3816	sub main_loop {
		3817	trace "EV::loop starting\n";
		3818	if (1) {
		3819	EV::loop;
		3820	}
		3821	trace "EV::loop returned\n";
		3822	goto &main_loop unless $REALLY_UNLOOP;
		3823	}
		3824
		3825	sub main {
		3826	cf::init_globals; # initialise logging
		3827
		3828	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3829	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3830	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3831	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3832
		3833	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3834
		3835	# we must not ever block the main coroutine
		3836	$Coro::idle = sub {
		3837	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3838	(async {
		3839	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3840	EV::loop EV::LOOP_ONESHOT;
		3841	})->prio (Coro::PRIO_MAX);
1832	);	3842	};
		3843
		3844	evthread_start IO::AIO::poll_fileno;
		3845
		3846	cf::sync_job {
		3847	cf::incloader::init ();
		3848
		3849	db_init;
		3850
		3851	cf::init_anim;
		3852	cf::init_attackmess;
		3853	cf::init_dynamic;
		3854
		3855	cf::load_settings;
		3856
		3857	reload_resources;
		3858	reload_config;
		3859
		3860	cf::init_uuid;
		3861	cf::init_signals;
		3862	cf::init_skills;
		3863
		3864	cf::init_beforeplay;
		3865
		3866	atomic;
		3867
		3868	load_extensions;
		3869
		3870	utime time, time, $RUNTIMEFILE;
		3871
		3872	# no (long-running) fork's whatsoever before this point(!)
		3873	use POSIX ();
		3874	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3875
		3876	cf::_post_init 0;
		3877	};
		3878
		3879	cf::object::thawer::errors_are_fatal 0;
		3880	info "parse errors in files are no longer fatal from this point on.\n";
		3881
		3882	AE::postpone {
		3883	undef &main; # free gobs of memory :)
		3884	};
		3885
		3886	goto &main_loop;
1833	}	3887	}
1834		3888
1835	#############################################################################	3889	#############################################################################
1836	# the server's main()	3890	# initialisation and cleanup
1837		3891
1838	sub cfg_load {	3892	# install some emergency cleanup handlers
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3893	BEGIN {
		3894	our %SIGWATCHER = ();
		3895	for my $signal (qw(INT HUP TERM)) {
		3896	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3897	cf::cleanup "SIG$signal";
		3898	};
		3899	}
		3900	}
		3901
		3902	sub write_runtime_sync {
		3903	my $t0 = AE::time;
		3904
		3905	# first touch the runtime file to show we are still running:
		3906	# the fsync below can take a very very long time.
		3907
		3908	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3909
		3910	my $guard = cf::lock_acquire "write_runtime";
		3911
		3912	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1840	or return;	3913	or return;
1841		3914
1842	local $/;	3915	my $value = $cf::RUNTIME + 90 + 10;
1843	*CFG = YAML::Syck::Load <$fh>;	3916	# 10 is the runtime save interval, for a monotonic clock
1844	}	3917	# 60 allows for the watchdog to kill the server.
1845		3918
1846	sub main {	3919	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1847	# we must not ever block the main coroutine	3920	and return;
1848	local $Coro::idle = sub {	3921
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3922	# always fsync - this file is important
1850	(Coro::unblock_sub {	3923	aio_fsync $fh
1851	Event::one_event;	3924	and return;
		3925
		3926	# touch it again to show we are up-to-date
		3927	aio_utime $fh, undef, undef;
		3928
		3929	close $fh
		3930	or return;
		3931
		3932	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3933	and return;
		3934
		3935	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3936
		3937	1
		3938	}
		3939
		3940	our $uuid_lock;
		3941	our $uuid_skip;
		3942
		3943	sub write_uuid_sync($) {
		3944	$uuid_skip ||= $_[0];
		3945
		3946	return if $uuid_lock;
		3947	local $uuid_lock = 1;
		3948
		3949	my $uuid = "$LOCALDIR/uuid";
		3950
		3951	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3952	or return;
		3953
		3954	my $value = uuid_seq uuid_cur;
		3955
		3956	unless ($value) {
		3957	info "cowardly refusing to write zero uuid value!\n";
		3958	return;
		3959	}
		3960
		3961	my $value = uuid_str $value + $uuid_skip;
		3962	$uuid_skip = 0;
		3963
		3964	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3965	and return;
		3966
		3967	# always fsync - this file is important
		3968	aio_fsync $fh
		3969	and return;
		3970
		3971	close $fh
		3972	or return;
		3973
		3974	aio_rename "$uuid~", $uuid
		3975	and return;
		3976
		3977	trace "uuid file written ($value).\n";
		3978
		3979	1
		3980
		3981	}
		3982
		3983	sub write_uuid($$) {
		3984	my ($skip, $sync) = @_;
		3985
		3986	$sync ? write_uuid_sync $skip
		3987	: async { write_uuid_sync $skip };
		3988	}
		3989
		3990	sub emergency_save() {
		3991	my $freeze_guard = cf::freeze_mainloop;
		3992
		3993	info "emergency_perl_save: enter\n";
		3994
		3995	# this is a trade-off: we want to be very quick here, so
		3996	# save all maps without fsync, and later call a global sync
		3997	# (which in turn might be very very slow)
		3998	local $USE_FSYNC = 0;
		3999
		4000	cf::sync_job {
		4001	cf::write_runtime_sync; # external watchdog should not bark
		4002
		4003	# use a peculiar iteration method to avoid tripping on perl
		4004	# refcount bugs in for. also avoids problems with players
		4005	# and maps saved/destroyed asynchronously.
		4006	info "emergency_perl_save: begin player save\n";
		4007	for my $login (keys %cf::PLAYER) {
		4008	my $pl = $cf::PLAYER{$login} or next;
		4009	$pl->valid or next;
		4010	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4011	$pl->save;
		4012	}
		4013	info "emergency_perl_save: end player save\n";
		4014
		4015	cf::write_runtime_sync; # external watchdog should not bark
		4016
		4017	info "emergency_perl_save: begin map save\n";
		4018	for my $path (keys %cf::MAP) {
		4019	my $map = $cf::MAP{$path} or next;
		4020	$map->valid or next;
		4021	$map->save;
		4022	}
		4023	info "emergency_perl_save: end map save\n";
		4024
		4025	cf::write_runtime_sync; # external watchdog should not bark
		4026
		4027	info "emergency_perl_save: begin database checkpoint\n";
		4028	BDB::db_env_txn_checkpoint $DB_ENV;
		4029	info "emergency_perl_save: end database checkpoint\n";
		4030
		4031	info "emergency_perl_save: begin write uuid\n";
		4032	write_uuid_sync 1;
		4033	info "emergency_perl_save: end write uuid\n";
		4034
		4035	cf::write_runtime_sync; # external watchdog should not bark
		4036
		4037	trace "emergency_perl_save: syncing database to disk";
		4038	BDB::db_env_txn_checkpoint $DB_ENV;
		4039
		4040	info "emergency_perl_save: starting sync\n";
		4041	IO::AIO::aio_sync sub {
		4042	info "emergency_perl_save: finished sync\n";
1852	})->();	4043	};
		4044
		4045	cf::write_runtime_sync; # external watchdog should not bark
		4046
		4047	trace "emergency_perl_save: flushing outstanding aio requests";
		4048	while (IO::AIO::nreqs || BDB::nreqs) {
		4049	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4050	}
		4051
		4052	cf::write_runtime_sync; # external watchdog should not bark
1853	};	4053	};
1854		4054
1855	cfg_load;	4055	info "emergency_perl_save: leave\n";
1856	db_load;
1857	load_extensions;
1858	Event::loop;
1859	}	4056	}
1860		4057
1861	#############################################################################	4058	sub post_cleanup {
1862	# initialisation	4059	my ($make_core) = @_;
1863		4060
		4061	IO::AIO::flush;
		4062
		4063	error Carp::longmess "post_cleanup backtrace"
		4064	if $make_core;
		4065
		4066	my $fh = pidfile;
		4067	unlink $PIDFILE if <$fh> == $$;
		4068	}
		4069
		4070	# a safer delete_package, copied from Symbol
		4071	sub clear_package($) {
		4072	my $pkg = shift;
		4073
		4074	# expand to full symbol table name if needed
		4075	unless ($pkg =~ /^main::.*::$/) {
		4076	$pkg = "main$pkg" if $pkg =~ /^::/;
		4077	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4078	$pkg .= '::' unless $pkg =~ /::$/;
		4079	}
		4080
		4081	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4082	my $stem_symtab = *{$stem}{HASH};
		4083
		4084	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4085	or return;
		4086
		4087	# clear all symbols
		4088	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4089	for my $name (keys %$leaf_symtab) {
		4090	_gv_clear *{"$pkg$name"};
		4091	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4092	}
		4093	}
		4094
1864	sub reload() {	4095	sub do_reload_perl() {
1865	# can/must only be called in main	4096	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	4097	unless (in_main) {
1867	warn "can only reload from main coroutine\n";	4098	error "can only reload from main coroutine";
1868	return;	4099	return;
1869	}	4100	}
1870		4101
1871	warn "reloading...";	4102	return if $RELOAD++;
1872		4103
1873	local $FREEZE = 1;	4104	my $t1 = AE::time;
		4105
		4106	while ($RELOAD) {
		4107	cf::get_slot 0.1, -1, "reload_perl";
		4108	info "perl_reload: reloading...";
		4109
		4110	trace "perl_reload: entering sync_job";
		4111
		4112	cf::sync_job {
1874	cf::emergency_save;	4113	#cf::emergency_save;
1875		4114
1876	eval {	4115	trace "perl_reload: cancelling all extension coros";
1877	# if anything goes wrong in here, we should simply crash as we already saved
1878
1879	# cancel all watchers
1880	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}
1883
1884	# cancel all extension coros
1885	$_->cancel for values %EXT_CORO;	4116	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	4117	%EXT_CORO = ();
1887		4118
1888	# unload all extensions	4119	trace "perl_reload: removing commands";
1889	for (@exts) {	4120	%COMMAND = ();
1890	warn "unloading <$_>";
1891	unload_extension $_;
1892	}
1893		4121
1894	# unload all modules loaded from $LIBDIR	4122	trace "perl_reload: removing ext/exti commands";
1895	while (my ($k, $v) = each %INC) {	4123	%EXTCMD = ();
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4124	%EXTICMD = ();
1897		4125
1898	warn "removing <$k>";	4126	trace "perl_reload: unloading/nuking all extensions";
1899	delete $INC{$k};	4127	for my $pkg (@EXTS) {
		4128	trace "... unloading $pkg";
1900		4129
1901	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;
1903
1904	if (my $cb = $k->can ("unload_module")) {	4130	if (my $cb = $pkg->can ("unload")) {
		4131	eval {
1905	$cb->();	4132	$cb->($pkg);
		4133	1
		4134	} or error "$pkg unloaded, but with errors: $@";
		4135	}
		4136
		4137	trace "... clearing $pkg";
		4138	clear_package $pkg;
1906	}	4139	}
1907		4140
1908	Symbol::delete_package $k;	4141	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4142	while (my ($k, $v) = each %INC) {
		4143	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4144
		4145	trace "... unloading $k";
		4146	delete $INC{$k};
		4147
		4148	$k =~ s/\.pm$//;
		4149	$k =~ s/\//::/g;
		4150
		4151	if (my $cb = $k->can ("unload_module")) {
		4152	$cb->();
		4153	}
		4154
		4155	clear_package $k;
1909	}	4156	}
1910		4157
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	4158	trace "perl_reload: getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	4159	clear_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4160	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		4161
1919	# remove register_script_function callbacks	4162	trace "perl_reload: unloading cf.pm \"a bit\"";
1920	# TODO
1921
1922	# unload cf.pm "a bit"
1923	delete $INC{"cf.pm"};	4163	delete $INC{"cf.pm"};
		4164	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1924		4165
1925	# don't, removes xs symbols, too,	4166	# don't, removes xs symbols, too,
1926	# and global variables created in xs	4167	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	4168	#clear_package __PACKAGE__;
1928		4169
1929	# reload cf.pm	4170	info "perl_reload: unload completed, starting to reload now";
1930	warn "reloading cf.pm";	4171
		4172	trace "perl_reload: reloading cf.pm";
1931	require cf;	4173	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4174	cf::_connect_to_perl_1;
1933		4175
1934	# load config and database again	4176	trace "perl_reload: loading config and database again";
1935	cf::cfg_load;	4177	cf::reload_config;
1936	cf::db_load;
1937		4178
1938	# load extensions	4179	trace "perl_reload: loading extensions";
1939	warn "load extensions";
1940	cf::load_extensions;	4180	cf::load_extensions;
1941		4181
1942	# reattach attachments to objects	4182	if ($REATTACH_ON_RELOAD) {
1943	warn "reattach";	4183	trace "perl_reload: reattaching attachments to objects/players";
1944	_global_reattach;	4184	_global_reattach; # objects, sockets
		4185	trace "perl_reload: reattaching attachments to maps";
		4186	reattach $_ for values %MAP;
		4187	trace "perl_reload: reattaching attachments to players";
		4188	reattach $_ for values %PLAYER;
		4189	}
		4190
		4191	cf::_post_init 1;
		4192
		4193	trace "perl_reload: leaving sync_job";
		4194
		4195	1
		4196	} or do {
		4197	error $@;
		4198	cf::cleanup "perl_reload: error, exiting.";
		4199	};
		4200
		4201	--$RELOAD;
		4202	}
		4203
		4204	$t1 = AE::time - $t1;
		4205	info "perl_reload: completed in ${t1}s\n";
		4206	};
		4207
		4208	our $RELOAD_WATCHER; # used only during reload
		4209
		4210	sub reload_perl() {
		4211	# doing reload synchronously and two reloads happen back-to-back,
		4212	# coro crashes during coro_state_free->destroy here.
		4213
		4214	$RELOAD_WATCHER ||= cf::async {
		4215	Coro::AIO::aio_wait cache_extensions;
		4216
		4217	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4218	do_reload_perl;
		4219	undef $RELOAD_WATCHER;
		4220	};
1945	};	4221	};
1946
1947	if ($@) {
1948	warn $@;
1949	warn "error while reloading, exiting.";
1950	exit 1;
1951	}
1952
1953	warn "reloaded successfully";
1954	};
1955
1956	#############################################################################
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	4222	}
1998
1999	register "<global>", __PACKAGE__;
2000		4223
2001	register_command "reload" => sub {	4224	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	4225	my ($who, $arg) = @_;
2003		4226
2004	if ($who->flag (FLAG_WIZ)) {	4227	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	4228	$who->message ("reloading server.");
		4229	async {
		4230	$Coro::current->{desc} = "perl_reload";
		4231	reload_perl;
		4232	};
2008	}	4233	}
2009	};	4234	};
2010		4235
2011	unshift @INC, $LIBDIR;	4236	#############################################################################
2012		4237
2013	$TICK_WATCHER = Event->timer (	4238	my $bug_warning = 0;
2014	reentrant => 0,
2015	prio => 0,
2016	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,
2018	cb => sub {
2019	unless ($FREEZE) {
2020	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;
2022	}
2023		4239
2024	$NEXT_TICK += $TICK;	4240	sub wait_for_tick() {
		4241	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2025		4242
2026	# if we are delayed by four ticks or more, skip them all	4243	$WAIT_FOR_TICK->wait;
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4244	}
2028		4245
2029	$TICK_WATCHER->at ($NEXT_TICK);	4246	sub wait_for_tick_begin() {
2030	$TICK_WATCHER->start;	4247	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4248
		4249	my $signal = new Coro::Signal;
		4250	push @WAIT_FOR_TICK_BEGIN, $signal;
		4251	$signal->wait;
		4252	}
		4253
		4254	sub tick {
		4255	if ($Coro::current != $Coro::main) {
		4256	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4257	unless ++$bug_warning > 10;
		4258	return;
2031	},	4259	}
2032	);
2033		4260
2034	IO::AIO::max_poll_time $TICK * 0.2;	4261	cf::one_tick; # one server iteration
2035		4262
2036	Event->io (	4263	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2037	fd => IO::AIO::poll_fileno,
2038	poll => 'r',
2039	prio => 5,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043		4264
2044	Event->timer (	4265	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2045	data => WF_AUTOCANCEL,	4266	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2046	after => 0,	4267	Coro::async_pool {
2047	interval => 10,	4268	$Coro::current->{desc} = "runtime saver";
2048	cb => sub {
2049	(Coro::unblock_sub {
2050	write_runtime	4269	write_runtime_sync
2051	or warn "ERROR: unable to write runtime file: $!";	4270	or error "ERROR: unable to write runtime file: $!";
2052	})->();	4271	};
2053	},	4272	}
2054	);	4273
		4274	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4275	$sig->send;
		4276	}
		4277	$WAIT_FOR_TICK->broadcast;
		4278
		4279	$LOAD = ($NOW - $TICK_START) / $TICK;
		4280	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4281
		4282	if (0) {
		4283	if ($NEXT_TICK) {
		4284	my $jitter = $TICK_START - $NEXT_TICK;
		4285	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4286	debug "jitter $JITTER\n";#d#
		4287	}
		4288	}
		4289	}
		4290
		4291	{
		4292	# configure BDB
		4293	info "initialising database";
		4294
		4295	BDB::min_parallel 16;
		4296	BDB::max_poll_reqs $TICK * 0.1;
		4297	#$AnyEvent::BDB::WATCHER->priority (1);
		4298
		4299	unless ($DB_ENV) {
		4300	$DB_ENV = BDB::db_env_create;
		4301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4302	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4303	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4304	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4305	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4306
		4307	cf::sync_job {
		4308	eval {
		4309	BDB::db_env_open
		4310	$DB_ENV,
		4311	$BDBDIR,
		4312	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4313	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4314	0666;
		4315
		4316	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4317	};
		4318
		4319	cf::cleanup "db_env_open(db): $@" if $@;
		4320	};
		4321	}
		4322
		4323	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4324	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4325	};
		4326	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4327	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4328	};
		4329	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4330	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4331	};
		4332
		4333	info "database initialised";
		4334	}
		4335
		4336	{
		4337	# configure IO::AIO
		4338
		4339	info "initialising aio";
		4340	IO::AIO::min_parallel 8;
		4341	IO::AIO::max_poll_time $TICK * 0.1;
		4342	undef $AnyEvent::AIO::WATCHER;
		4343	info "aio initialised";
		4344	}
		4345
		4346	our $_log_backtrace;
		4347	our $_log_backtrace_last;
		4348
		4349	sub _log_backtrace {
		4350	my ($msg, @addr) = @_;
		4351
		4352	$msg =~ s/\n$//;
		4353
		4354	if ($_log_backtrace_last eq $msg) {
		4355	LOG llevInfo, "[ABT] $msg\n";
		4356	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4357	# limit the # of concurrent backtraces
		4358	} elsif ($_log_backtrace < 2) {
		4359	$_log_backtrace_last = $msg;
		4360	++$_log_backtrace;
		4361	my $perl_bt = Carp::longmess $msg;
		4362	async {
		4363	$Coro::current->{desc} = "abt $msg";
		4364
		4365	my @bt = fork_call {
		4366	@addr = map { sprintf "%x", $_ } @addr;
		4367	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4368	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4369	or die "addr2line: $!";
		4370
		4371	my @funcs;
		4372	my @res = <$fh>;
		4373	chomp for @res;
		4374	while (@res) {
		4375	my ($func, $line) = splice @res, 0, 2, ();
		4376	push @funcs, "[$func] $line";
		4377	}
		4378
		4379	@funcs
		4380	};
		4381
		4382	LOG llevInfo, "[ABT] $perl_bt\n";
		4383	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4384	LOG llevInfo, "[ABT] $_\n" for @bt;
		4385	--$_log_backtrace;
		4386	};
		4387	} else {
		4388	LOG llevInfo, "[ABT] $msg\n";
		4389	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4390	}
		4391	}
		4392
		4393	# load additional modules
		4394	require "cf/$_.pm" for @EXTRA_MODULES;
		4395	cf::_connect_to_perl_2;
		4396
		4397	END { cf::emergency_save }
2055		4398
2056	1	4399	1
2057		4400

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