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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.618 by root, Mon Aug 10 18:48:41 2015 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3;	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
20	use Digest::MD5;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
21	use Fcntl;	60	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	61	use YAML::XS ();
24	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
34		85
35	our %COMMAND = ();	86	our %COMMAND = ();
36	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
38		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	98	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
45	our $NOW;	144	our $NOW;
46		145
47	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
48		149
49	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		152
52	our %MAP; # all maps	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	154	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	155	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
57		165
58	binmode STDOUT;	166	binmode STDOUT;
59	binmode STDERR;	167	binmode STDERR;
60		168
61	# read virtual server time, if available	169	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
66	}	174	}
67		175
68	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		177
74	# a special map that is always available	178	mkdir $_
75	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		180
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	181	our $EMERGENCY_POSITION;
		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
78		188
79	#############################################################################	189	#############################################################################
80		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
81	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
82		203
83	=over 4	204	=over 4
84		205
85	=item $cf::UPTIME	206	=item $cf::UPTIME
86		207
87	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
88		224
89	=item $cf::RUNTIME	225	=item $cf::RUNTIME
90		226
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	228	every server tick.
93		229
94	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		233
96	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
98		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
99	=item $cf::NOW	245	=item $cf::LOAD
100		246
101	The time of the last (current) server tick.	247	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		248
107	=item %cf::CFG	249	=item %cf::CFG
108		250
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	252	from wherever your confdir points to.
111		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
		289
112	=back	290	=back
113		291
114	=cut	292	=cut
115		293
116	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	301	my $msg = join "", @_;
119	utf8::encode $msg;
120		302
121	$msg .= "\n"	303	$msg .= "\n"
122	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
123		305
124	LOG llevError, "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	307
126	}	308	LOG llevWarn, $msg;
		309	};
		310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
127		324
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		332
135	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	334	# within the Safe compartment.
137	for my $pkg (qw(	335	for my $pkg (qw(
138	cf::global cf::attachable	336	cf::global cf::attachable
139	cf::object cf::object::player	337	cf::object cf::object::player
140	cf::client cf::player	338	cf::client cf::player
141	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
142	cf::map cf::party cf::region	341	cf::party cf::region
143	)) {	342	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	344	}
147		345
148	$Event::DIED = sub {	346	$EV::DIED = sub {
149	warn "error in event callback: @_";	347	warn "error in event callback: $@";
150	};	348	};
151		349
152	my %ext_pkg;	350	#############################################################################
153	my @exts;	351
154	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
155		356
156	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
157		358
158	=over 4	359	=over 4
159		360
160	=cut	361	=item dumpval $ref
161		362
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
163		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
164	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
165		437
166	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
167		439
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
176		441
177	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
178		443
179	=cut	444	=cut
180		445
181	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
183	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
184	}	467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
		511	}
		512
		513	=item cf::lock_wait $string
		514
		515	Wait until the given lock is available. See cf::lock_acquire.
		516
		517	=item my $lock = cf::lock_acquire $string
		518
		519	Wait until the given lock is available and then acquires it and returns
		520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		521	for example when the coroutine gets canceled), the lock is automatically
		522	returned.
		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
		527	Lock names should begin with a unique identifier (for example, cf::map::find
		528	uses map_find and cf::map::load uses map_load).
		529
		530	=item $locked = cf::lock_active $string
		531
		532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
		537
		538	sub lock_wait($) {
		539	$LOCKS->wait ($_[0]);
		540	}
		541
		542	sub lock_acquire($) {
		543	$LOCKS->guard ($_[0])
		544	}
		545
		546	sub lock_active($) {
		547	$LOCKS->count ($_[0]) < 1
		548	}
		549
		550	sub freeze_mainloop {
		551	tick_inhibit_inc;
		552
		553	&Guard::guard (\&tick_inhibit_dec);
		554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
		639	}
		640
		641	=item cf::async { BLOCK }
		642
		643	Currently the same as Coro::async_pool, meaning you cannot use
		644	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		645	thing you are allowed to do is call C<prio> on it.
		646
		647	=cut
		648
		649	BEGIN { *async = \&Coro::async_pool }
185		650
186	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
187		652
188	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
191		657
192	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
195	fast or be very important.	661	fast or be very important.
…		…
197	=cut	663	=cut
198		664
199	sub sync_job(&) {	665	sub sync_job(&) {
200	my ($job) = @_;	666	my ($job) = @_;
201		667
		668	if (in_main) {
		669	my $time = AE::time;
		670
		671	# this is the main coro, too bad, we have to block
		672	# till the operation succeeds, freezing the server :/
		673
		674	#LOG llevError, Carp::longmess "sync job";#d#
		675
		676	my $freeze_guard = freeze_mainloop;
		677
202	my $busy = 1;	678	my $busy = 1;
203	my @res;	679	my @res;
204		680
205	my $coro = Coro::async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
206	@res = eval { $job->() };	683	@res = eval { $job->() };
207	warn $@ if $@;	684	error $@ if $@;
208	undef $busy;	685	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {
212	# TODO: use suspend/resume instead
213	local $FREEZE = 1;
214	$coro->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
		687
215	while ($busy) {	688	while ($busy) {
		689	if (Coro::nready) {
216	Coro::cede_notself;	690	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	691	} else {
		692	EV::run EV::RUN_ONCE;
218	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
		699
		700	wantarray ? @res : $res[0]
219	} else {	701	} else {
220	$coro->join;	702	# we are in another coroutine, how wonderful, everything just works
		703
		704	$job->()
221	}	705	}
222
223	wantarray ? @res : $res[0]
224	}	706	}
225		707
226	=item $coro = cf::coro { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
227		709
228	Creates and returns a new coro. This coro is automcatially being canceled	710	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	711	extension calling this is being unloaded.
230		712
231	=cut	713	=cut
232		714
233	sub coro(&) {	715	sub async_ext(&) {
234	my $cb = shift;	716	my $cb = shift;
235		717
236	my $coro; $coro = async {	718	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		719
243	$coro->on_destroy (sub {	720	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	721	delete $EXT_CORO{$coro+0};
245	});	722	});
246	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
247		724
248	$coro	725	$coro
249	}	726	}
250		727
251	sub write_runtime {	728	=item fork_call { }, @args
252	my $runtime = cf::localdir . "/runtime";
253		729
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
255	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
256		734
257	my $value = $cf::RUNTIME;	735	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		736
261	aio_fsync $fh	737	sub post_fork {
262	and return;	738	reset_signals;
		739	}
263		740
264	close $fh	741	sub fork_call(&@) {
265	or return;	742	my ($cb, @args) = @_;
266		743
267	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
268	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
269		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
270	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	927	}
272		928
273	=back	929	=back
274		930
275	=cut	931	=cut
276		932
277	#############################################################################	933	#############################################################################
278		934
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386
387	#############################################################################
388
389	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
390		936
391	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
394		940
395	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	943	Deliantra).
398		944
399	=over 4	945	=over 4
400		946
401	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
402		948
…		…
446	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
447		993
448	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
450		996
451	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
453		999
454	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
455		1001
456	=over 4	1002	=over 4
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	1063	our @CB_MAP = ();
518		1064
519	my %attachment;	1065	my %attachment;
520		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
521	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
523		1075
524	use sort 'stable';	1076	use sort 'stable';
525		1077
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
560		1112
561	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		1117
566	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
568		1120
569	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
574		1126
575	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		1129
578	} elsif (ref $type) {	1130	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
580		1132
581	} else {	1133	} else {
582	shift @arg;	1134	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
584	}	1136	}
585	}	1137	}
586	}	1138	}
587		1139
588	sub _object_attach {	1140	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
599	}	1151	}
600		1152
601	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
602	} else {	1154	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1156	}
605		1157
606	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
607	}	1159	}
608		1160
…		…
610	if (ref $_[0]) {	1162	if (ref $_[0]) {
611	_object_attach @_;	1163	_object_attach @_;
612	} else {	1164	} else {
613	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
614	}	1166	}
		1167	_recalc_want;
615	};	1168	};
616		1169
617	# all those should be optimised	1170	# all those should be optimised
618	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1176	reattach ($obj);
624	} else {	1177	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
626	}	1179	}
		1180	_recalc_want;
627	};	1181	};
628		1182
629	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
631		1185
…		…
646	";	1200	";
647	die if $@;	1201	die if $@;
648	}	1202	}
649		1203
650	our $override;	1204	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		1206
653	sub override {	1207	sub override {
654	$override = 1;	1208	$override = 1;
655	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
656	}	1210	}
657		1211
658	sub do_invoke {	1212	sub do_invoke {
659	my $event = shift;	1213	my $event = shift;
660	my $callbacks = shift;	1214	my $callbacks = shift;
661		1215
662	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
663		1217
664	local $override;	1218	local $override;
665		1219
666	for (@$callbacks) {	1220	for (@$callbacks) {
667	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
668		1222
669	if ($@) {	1223	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1225	override;
673	}	1226	}
674		1227
675	return 1 if $override;	1228	return 1 if $override;
676	}	1229	}
677		1230
678	0	1231	0
679	}	1232	}
680		1233
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1235
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1237
685	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
686		1239
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1243
691	=back	1244	=back
692		1245
693	=cut	1246	=cut
694		1247
695	#############################################################################	1248	#############################################################################
696	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
697		1292
698	sub reattach {	1293	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1295	my ($obj) = @_;
		1296
		1297	# no longer needed after getting rid of delete_package?
		1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1299
702	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
703		1301
704	@$registry = ();	1302	@$registry = ();
705		1303
…		…
710	for (@$attach) {	1308	for (@$attach) {
711	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
713	}	1311	}
714	} else {	1312	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1314	}
717	}	1315	}
718	}	1316	}
719		1317
720	cf::attachable->attach (	1318	cf::attachable->attach (
721	prio => -1000000,	1319	prio => -1000000,
722	on_instantiate => sub {	1320	on_instantiate => sub {
723	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
724		1322
725	$data = from_json $data;	1323	$data = decode_json $data;
726		1324
727	for (@$data) {	1325	for (@$data) {
728	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
729		1327
730	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1344	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
748		1346
749	sync_job {	1347	sync_job {
750	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
753		1353
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
757	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
758	close $fh;	1361	aio_close $fh;
759		1362
760	if (@$objs) {	1363	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
765	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
766	close $fh;	1372	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
768	}	1374	}
769	} else {	1375	} else {
770	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
771	}	1377	}
772		1378
773	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1383	} else {
775	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
776	}	1385	}
777	} else {	1386	} else {
778	aio_unlink $filename;	1387	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
780	}	1389	}
781	}	1390	};
782	}	1391	}
783		1392
784	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
786		1395
…		…
798	or return;	1407	or return;
799		1408
800	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
802	or return;	1411	or return;
		1412
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
804	}	1415	}
805		1416
		1417	utf8::decode (my $decname = $filename);
		1418	trace sprintf "loading %s (%d,%d)\n",
		1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
806	return ($data, $av);	1422	($data, $av)
807	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
808		1430
809	#############################################################################	1431	#############################################################################
810	# command handling &c	1432	# command handling &c
811		1433
812	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
813		1435
814	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
815	$name.	1437	$name.
816		1438
817	=cut	1439	=cut
…		…
823	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
824		1446
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1448	}
827		1449
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
829		1451
830	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
831		1457
832	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
833	called.
834		1459
835	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
836		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
837	sub register_extcmd {	1482	sub register_extcmd($$) {
838	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
839		1484
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
844	}	1486	}
		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
845		1507
846	cf::player->attach (	1508	cf::player->attach (
847	on_command => sub {	1509	on_unknown_command => sub {
848	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
849		1511
850	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
851	or return;	1513	or return;
852		1514
…		…
857	cf::override;	1519	cf::override;
858	},	1520	},
859	on_extcmd => sub {	1521	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
861		1523
862	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1525
864	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
867	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
868	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
869	}	1547	}
		1548
870	} else {	1549	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1551	}
873		1552
874	cf::override;	1553	cf::override;
875	},	1554	},
876	);	1555	);
877		1556
878	sub register {	1557	# "readahead" all extensions
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1558	sub cache_extensions {
885	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
886		1560
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
888	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
889	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892
893	warn "loading '$path' into '$pkg'\n";
894
895	open my $fh, "<:utf8", $path
896	or die "$path: $!";
897
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }
927
928	# remove commands
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}	1564	}
937	}	1565	};
938		1566
939	# remove extcmds	1567	$grp
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1568	}
941	delete $EXTCMD{$name};
942	}
943		1569
944	if (my $cb = $pkg->can ("unload")) {	1570	sub _ext_cfg_reg($$$$) {
945	eval {	1571	my ($rvar, $varname, $cfgname, $default) = @_;
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950		1572
951	Symbol::delete_package $pkg;	1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
952	}	1579	}
953		1580
954	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
955	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	1590	next unless -r $path;
957	eval {	1591
958	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
959	1	1664	}
960	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
961	}	1677	};
962	}	1678	}
963		1679
964	#############################################################################	1680	#############################################################################
965	# load/save/clean perl data associated with a map
966		1681
967	*cf::mapsupport::on_clean = sub {	1682	=back
		1683
		1684	=head2 CORE EXTENSIONS
		1685
		1686	Functions and methods that extend core deliantra objects.
		1687
		1688	=cut
		1689
		1690	package cf::player;
		1691
		1692	use Coro::AIO;
		1693
		1694	=head3 cf::player
		1695
		1696	=over 4
		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
		1712	=item cf::player::find $login
		1713
		1714	Returns the given player object, loading it if necessary (might block).
		1715
		1716	=cut
		1717
		1718	sub playerdir($) {
		1719	"$PLAYERDIR/"
		1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1721	}
		1722
		1723	sub path($) {
		1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1725
		1726	(playerdir $login) . "/playerdata"
		1727	}
		1728
		1729	sub find_active($) {
		1730	$cf::PLAYER{$_[0]}
		1731	and $cf::PLAYER{$_[0]}->active
		1732	and $cf::PLAYER{$_[0]}
		1733	}
		1734
		1735	sub exists($) {
968	my ($map) = @_;	1736	my ($login) = @_;
969		1737
970	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
971	defined $path or return;	1739	or !aio_stat path $login
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}	1740	}
984		1741
985	# TODO: compatibility cruft, remove when no longer needed	1742	sub find($) {
		1743	return $cf::PLAYER{$_[0]} || do {
		1744	my $login = $_[0];
		1745
		1746	my $guard = cf::lock_acquire "user_find:$login";
		1747
		1748	$cf::PLAYER{$_[0]} || do {
		1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
		1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
		1764	$cf::PLAYER{$login} = $pl
		1765	}
		1766	}
		1767	}
		1768
986	cf::player->attach (	1769	cf::player->attach (
987	on_load => sub {	1770	on_load => sub {
988	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
989		1772
990	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
992	$o->set_ob_key_value ("_perl_data");
993		1775
994	%$o = %{ Storable::thaw pack "H*", $value };	1776	$pl->ob->current_weapon ($slots->[0]);
995	}	1777	$pl->combat_ob ($slots->[1]);
996	}	1778	$pl->ranged_ob ($slots->[2]);
997	},	1779	},
998	);	1780	);
999		1781
1000	#############################################################################	1782	sub save($) {
		1783	my ($pl) = @_;
1001		1784
1002	=head2 CORE EXTENSIONS	1785	return if $pl->{deny_save};
1003		1786
1004	Functions and methods that extend core crossfire objects.	1787	my $path = path $pl;
		1788	my $guard = cf::lock_acquire "user_save:$path";
1005		1789
1006	=head3 cf::player	1790	return if $pl->{deny_save};
		1791
		1792	aio_mkdir playerdir $pl, 0770;
		1793	$pl->{last_save} = $cf::RUNTIME;
		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
		1800	$pl->save_pl ($path);
		1801	cf::cede_to_tick;
		1802	}
		1803
		1804	sub new($) {
		1805	my ($login) = @_;
		1806
		1807	my $self = create;
		1808
		1809	$self->ob->name ($login);
		1810	$self->{deny_save} = 1;
		1811
		1812	$cf::PLAYER{$login} = $self;
		1813
		1814	$self
		1815	}
		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
		1827	=item $pl->quit_character
		1828
		1829	Nukes the player without looking back. If logged in, the connection will
		1830	be destroyed. May block for a long time.
		1831
		1832	=cut
		1833
		1834	sub quit_character {
		1835	my ($pl) = @_;
		1836
		1837	my $name = $pl->ob->name;
		1838
		1839	$pl->{deny_save} = 1;
		1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1841
		1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
		1849	$pl->ns->destroy if $pl->ns;
		1850
		1851	my $path = playerdir $pl;
		1852	my $temp = "$path~$cf::RUNTIME~deleting~";
		1853	aio_rename $path, $temp;
		1854	delete $cf::PLAYER{$pl->ob->name};
		1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
		1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
		1877	}
		1878
		1879	=item cf::player::list_logins
		1880
		1881	Returns am arrayref of all valid playernames in the system, can take a
		1882	while and may block, so not sync_job-capable, ever.
		1883
		1884	=cut
		1885
		1886	sub list_logins {
		1887	my $dirs = aio_readdir $PLAYERDIR
		1888	or return [];
		1889
		1890	my @logins;
		1891
		1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
		1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1899	aio_read $fh, 0, 512, my $buf, 0 or next;
		1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
		1902
		1903	utf8::decode $login;
		1904	push @logins, $login;
		1905	}
		1906
		1907	\@logins
		1908	}
		1909
		1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
		1913
		1914	Returns an arrayref of map paths that are private for this
		1915	player. May block.
		1916
		1917	=cut
		1918
		1919	sub maps($) {
		1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
		1923
		1924	my $files = aio_readdir playerdir $pl
		1925	or return;
		1926
		1927	my @paths;
		1928
		1929	for (@$files) {
		1930	utf8::decode $_;
		1931	next if /\.(?:pl|pst)$/;
		1932	next unless /^$PATH_SEP/o;
		1933
		1934	push @paths, cf::map::normalise "~$pl/$_";
		1935	}
		1936
		1937	\@paths
		1938	}
		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
		1944	=item $player->ext_msg ($type, @msg)
		1945
		1946	Sends an ext event to the client.
		1947
		1948	=cut
		1949
		1950	sub ext_msg($$@) {
		1951	my ($self, $type, @msg) = @_;
		1952
		1953	$self->ns->ext_msg ($type, @msg);
		1954	}
		1955
		1956	=head3 cf::region
1007		1957
1008	=over 4	1958	=over 4
1009		1959
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut	1960	=cut
1015		1961
1016	sub cf::player::exists($) {	1962	package cf::region;
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020		1963
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1964	=item cf::region::find_by_path $path
1022		1965
1023	Sends an ext reply to the player.	1966	Tries to decuce the likely region for a map knowing only its path.
1024		1967
1025	=cut	1968	=cut
1026		1969
1027	sub cf::player::ext_reply($$$%) {	1970	sub find_by_path($) {
1028	my ($self, $id, %msg) = @_;	1971	my ($path) = @_;
1029		1972
1030	$msg{msgid} = $id;	1973	$path =~ s/^~[^\/]*//; # skip ~login
1031		1974
1032	$self->send ("ext " . to_json \%msg);	1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
1033	}	1985	}
1034		1986
1035	=back	1987	=back
1036
1037		1988
1038	=head3 cf::map	1989	=head3 cf::map
1039		1990
1040	=over 4	1991	=over 4
1041		1992
…		…
1044	package cf::map;	1995	package cf::map;
1045		1996
1046	use Fcntl;	1997	use Fcntl;
1047	use Coro::AIO;	1998	use Coro::AIO;
1048		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
1049	our $MAX_RESET = 7200;	2004	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	2005	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		2006
1054	sub generate_random_map {	2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
		2036	my ($self, $merge) = @_;
		2037
		2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
		2041
		2042	$self->SUPER::thawer_merge ($merge);
		2043	}
		2044
		2045	sub normalise {
1055	my ($path, $rmp) = @_;	2046	my ($path, $base) = @_;
1056		2047
1057	# mit "rum" bekleckern, nicht	2048	$path = "$path"; # make sure it's a string
1058	cf::map::_create_random_map	2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
1059	$path,	2077	$path
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})
1071	}	2078	}
1072		2079
1073	# and all this just because we cannot iterate over	2080	sub new_from_path {
1074	# all maps in C++...	2081	my (undef, $path, $base) = @_;
1075	sub change_all_map_light {	2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
1076	my ($change) = @_;	2102	my ($self) = @_;
1077		2103
1078	$_->change_map_light ($change) for values %cf::MAP;	2104	$self
1079	}	2105	}
1080		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
1081	sub try_load_header($) {	2157	sub load_header_from($) {
1082	my ($path) = @_;	2158	my ($self, $path) = @_;
1083		2159
1084	utf8::encode $path;	2160	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1086	or return;	2162	or return;
1087		2163
1088	my $map = cf::map::new	2164	$self->_load_header ($f)
1089	or return;	2165	or return;
1090		2166
1091	$map->load_header ($path)	2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
		2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
1092	or return;	2217	or return;
		2218	$self->prepare_orig;
		2219	}
1093		2220
1094	$map->{load_path} = $path;	2221	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	2222	if $self->no_reset;
1096		2223
1097	$map	2224	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	2225	unless $self->default_region;
1099		2226
		2227	1
		2228	}
		2229
		2230	sub find;
1100	sub find_map {	2231	sub find {
1101	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1102		2233
1103	#warn "find_map<$path,$origin>\n";#d#	2234	cf::cede_to_tick;
1104		2235
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1106	my $key = $path->as_string;
1107		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2239	my $guard2 = cf::lock_acquire "map_find:$path";
		2240
1108	$cf::MAP{$key} || do {	2241	$cf::MAP{$path} || do {
1109	# do it the slow way	2242	my $map = new_from_path cf::map $path
1110	my $map = try_load_header $path->save_path;
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	2243	or return;
1124		2244
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	2245	$map->{last_save} = $cf::RUNTIME;
1135		2246
1136	$map->reset if $map->should_reset;	2247	$map->load_header
		2248	or return;
1137		2249
		2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
		2255	$map->reset;
		2256	return find $path;
		2257	}
		2258
1138	$cf::MAP{$key} = $map	2259	$cf::MAP{$path} = $map
1139	}	2260	}
1140	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1141		2265
1142	sub load {	2266	sub load {
1143	my ($self) = @_;	2267	my ($self) = @_;
1144		2268
1145	return if $self->in_memory != cf::MAP_SWAPPED;	2269	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		2270
1149	my $path = $self->{path};	2271	my $path = $self->{path};
1150		2272
		2273	{
		2274	my $guard = cf::lock_acquire "map_data:$path";
		2275
		2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
		2278
1151	$self->alloc;	2279	$self->alloc;
1152	$self->load_objects ($self->{load_path}, 1)	2280
		2281	$self->pre_load;
		2282	cf::cede_to_tick;
		2283
		2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
1153	or return;	2288	or return;
1154		2289
		2290	$self->post_load_original
		2291	if delete $self->{load_original};
		2292
1155	if (my $uniq = $path->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	2294	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1158	$self->clear_unique_items;	2297	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1160	}	2302	}
1161	}
1162		2303
		2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1163	# now do the right thing for maps	2313	# now do the right thing for maps
1164	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	2316	unless $self->difficulty;
1176	$self->activate;	2317	cf::cede_to_tick;
		2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
		2329	}
		2330
		2331	$self->post_load;
		2332
1177	}	2333	1
1178
1179	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	2334	}
1181		2335
1182	sub load_map_sync {	2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
		2341
		2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
		2348	$self
		2349	}
		2350
		2351	sub find_sync {
1183	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1184		2353
1185	#warn "load_map_sync<$path, $origin>\n";#d#	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
1186		2357
1187	cf::sync_job {	2358	find $path, $origin
1188	my $map = cf::map::find_map $path, $origin	2359	}
1189	or return;	2360
		2361	sub do_load_sync {
		2362	my ($map) = @_;
		2363
		2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
1190	$map->load;	2368	$map->load;
1191	$map	2369	}
		2370
		2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
		2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
		2388	while (%MAP_PREFETCH) {
		2389	while (my ($k, $v) = each %MAP_PREFETCH) {
		2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
		2394	delete $MAP_PREFETCH{$k};
		2395	}
		2396	}
		2397	undef $MAP_PREFETCHER;
		2398	};
		2399	$MAP_PREFETCHER->prio (6);
		2400
		2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1192	}	2433	}
1193	}	2434	}
1194		2435
1195	sub save {	2436	sub save {
1196	my ($self) = @_;	2437	my ($self) = @_;
1197		2438
1198	my $save = $self->{path}->save_path; utf8::encode $save;	2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		2440
1201	$self->{last_save} = $cf::RUNTIME;	2441	$self->_save;
1202
1203	return unless $self->dirty;
1204
1205	$self->{load_path} = $save;
1206
1207	return if $self->{deny_save};
1208
1209	warn "saving map ", $self->path;
1210
1211	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}
1217	}	2442	}
1218		2443
1219	sub swap_out {	2444	sub swap_out {
1220	my ($self) = @_;	2445	my ($self) = @_;
1221		2446
		2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1222	return if $self->players;	2451	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};
1225		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
1226	$self->save;	2459	$self->_save;
		2460
		2461	# then free the map
1227	$self->clear;	2462	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	2463	}
		2464
		2465	sub reset_at {
		2466	my ($self) = @_;
		2467
		2468	# TODO: safety, remove and allow resettable per-player maps
		2469	return 1e99 if $self->{deny_reset};
		2470
		2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2473
		2474	$time + $to
1229	}	2475	}
1230		2476
1231	sub should_reset {	2477	sub should_reset {
1232	my ($map) = @_;	2478	my ($self) = @_;
1233		2479
1234	# TODO: safety, remove and allow resettable per-player maps	2480	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	2481	}
1243		2482
1244	sub reset {	2483	sub reset {
1245	my ($self) = @_;	2484	my ($self) = @_;
1246		2485
		2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2487
1247	return if $self->players;	2488	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		2489
1250	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1251		2491
1252	utf8::encode (my $save = $self->{path}->save_path);	2492	$self->state (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
		2501
		2502	delete $cf::MAP{$self->path};
		2503
		2504	$self->deactivate;
1256	$_->clear_links_to ($self) for values %cf::MAP;	2505	$_->clear_links_to ($self) for values %cf::MAP;
1257
1258	$self->clear;	2506	$self->clear;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}
1262		2507
1263	sub customise_for {	2508	$self->unlink_save;
1264	my ($map, $ob) = @_;	2509	$self->destroy;
		2510	}
1265		2511
1266	if ($map->per_player) {	2512	my $nuke_counter = "aaaa";
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2513
		2514	sub nuke {
		2515	my ($self) = @_;
		2516
1268	}	2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
1269		2519
1270	$map	2520	delete $cf::MAP{$self->path};
1271	}
1272		2521
1273	sub emergency_save {	2522	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		2523
1276	warn "enter emergency map save\n";	2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
		2526	$self->{deny_save} = 1;
		2527	$self->reset_timeout (1);
		2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		2529
1278	cf::sync_job {	2530	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};	2531	}
1282		2532
1283	warn "end emergency map save\n";	2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
		2570	}
		2571
		2572	=item cf::map::unique_maps
		2573
		2574	Returns an arrayref of paths of all shared maps that have
		2575	instantiated unique items. May block.
		2576
		2577	=cut
		2578
		2579	sub unique_maps() {
		2580	[
		2581	map {
		2582	utf8::decode $_;
		2583	s/\.map$//; # TODO future compatibility hack
		2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
		2590
		2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
		2622
		2623	=back
		2624
		2625	=head3 cf::object
		2626
		2627	=cut
		2628
		2629	package cf::object;
		2630
		2631	=over 4
		2632
		2633	=item $ob->inv_recursive
		2634
		2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
		2637
		2638	=cut
		2639
		2640	sub inv_recursive_;
		2641	sub inv_recursive_ {
		2642	map { $_, inv_recursive_ $_->inv } @_
		2643	}
		2644
		2645	sub inv_recursive {
		2646	inv_recursive_ inv $_[0]
		2647	}
		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
1284	}	2675	}
1285		2676
1286	package cf;	2677	package cf;
1287		2678
1288	=back	2679	=back
1289
1290		2680
1291	=head3 cf::object::player	2681	=head3 cf::object::player
1292		2682
1293	=over 4	2683	=over 4
1294		2684
…		…
1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1298	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1299	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1300		2690
1301	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1302		2706
1303	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1304	# with dialog boxes.	2708	# with dialog boxes.
1305	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1306	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1308		2712
1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1310		2714
1311	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1312	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1313	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1314	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1315	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1316	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1317	}	2740	}
1318		2741
1319	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1320		2743
1321	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
1322	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
1323		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
1324	=cut	2772	=cut
1325		2773
1326	sub cf::object::player::may {	2774	sub cf::object::player::may {
1327	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
1328		2776
1329	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
1330	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
		2781	}
		2782
		2783	=item $player_object->enter_link
		2784
		2785	Freezes the player and moves him/her to a special map (C<{link}>).
		2786
		2787	The player should be reasonably safe there for short amounts of time (e.g.
		2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
		2791
		2792	This method will never block, which is the whole reaosn for it's
		2793	existance: you can I<always> put a player onto the link map, which is the
		2794	only place to put objects that is guaranteed to exist.
		2795
		2796	A typical usage pattern is to call C<enter_link> synchronously from the
		2797	server, then start a new thread, do your blocking stuff there and then
		2798	call C<leave_link> from that thread.
		2799
		2800	=item $player_object->leave_link ($map, $x, $y)
		2801
		2802	Moves the player out of the special C<{link}> map onto the specified
		2803	map. If the map is not valid (or omitted), the player will be moved back
		2804	to the location he/she was before the call to C<enter_link>, or, if that
		2805	fails, to the emergency map position.
		2806
		2807	Might block.
		2808
		2809	=cut
		2810
		2811	sub link_map {
		2812	unless ($LINK_MAP) {
		2813	$LINK_MAP = cf::map::find "{link}"
		2814	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2815	$LINK_MAP->load;
		2816	}
		2817
		2818	$LINK_MAP
1333	}	2819	}
1334		2820
1335	sub cf::object::player::enter_link {	2821	sub cf::object::player::enter_link {
1336	my ($self) = @_;	2822	my ($self) = @_;
1337		2823
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	2824	$self->deactivate_recursive;
		2825
		2826	++$self->{_link_recursion};
		2827
		2828	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2829
		2830	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2831	if $self->map && $self->map->{path} ne "{link}";
		2832
		2833	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1345	}	2834	}
1346		2835
1347	sub cf::object::player::leave_link {	2836	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	2837	my ($self, $map, $x, $y) = @_;
1349		2838
		2839	return unless $self->contr->active;
		2840
1350	my $link_pos = delete $self->{_link_pos};	2841	my $link_pos = delete $self->{_link_pos};
1351		2842
1352	unless ($map) {	2843	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	2844	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	2845	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	2846	$map = cf::map::find $map;
1358		2847
1359	unless ($map) {	2848	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	2849	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	2850	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	2851	or die "FATAL: cannot load emergency map\n";
1363	}	2852	}
1364	}	2853	}
1365		2854
1366	($x, $y) = (-1, -1)	2855	($x, $y) = (-1, -1)
1367	unless (defined $x) && (defined $y);	2856	unless (defined $x) && (defined $y);
1368		2857
1369	# use -1 or undef as default coordinates, not 0, 0	2858	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2859	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2860	if $x <= 0 && $y <= 0;
1372		2861
1373	$map->load;	2862	$map->load;
1374		2863
		2864	return unless $self->contr->active;
		2865
		2866	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2867	if ($self->enter_map ($map, $x, $y)) {
		2868	# entering was successful
		2869	delete $self->{_link_recursion};
		2870	# only activate afterwards, to support waiting in hooks
1375	$self->activate_recursive;	2871	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	2872	}
1377	}
1378		2873
1379	=item $player_object->goto_map ($map, $x, $y)	2874	}
1380		2875
1381	=cut	2876	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1382		2877
		2878	Moves the player to the given map-path and coordinates by first freezing
		2879	her, loading and preparing them map, calling the provided $check callback
		2880	that has to return the map if sucecssful, and then unfreezes the player on
		2881	the new (success) or old (failed) map position. In either case, $done will
		2882	be called at the end of this process.
		2883
		2884	Note that $check will be called with a potentially non-loaded map, so if
		2885	it needs a loaded map it has to call C<< ->load >>.
		2886
		2887	=cut
		2888
		2889	our $GOTOGEN;
		2890
1383	sub cf::object::player::goto_map {	2891	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	2892	my ($self, $path, $x, $y, $check, $done) = @_;
		2893
		2894	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2895	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2896	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2897	($path, $x, $y) = @$EMERGENCY_POSITION;
		2898	}
		2899
		2900	# do generation counting so two concurrent goto's will be executed in-order
		2901	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		2902
1386	$self->enter_link;	2903	$self->enter_link;
1387		2904
1388	(Coro::async {	2905	(async {
1389	$path = new cf::path $path;	2906	$Coro::current->{desc} = "player::goto $path $x $y";
1390		2907
1391	my $map = cf::map::find_map $path->as_string;	2908	# *tag paths override both path and x|y
		2909	if ($path =~ /^\*(.*)$/) {
		2910	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2911	my $ob = $obs[rand @obs];
		2912
		2913	# see if we actually can go there
		2914	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2915	$ob = $obs[rand @obs];
		2916	} else {
		2917	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2918	}
		2919	# else put us there anyways for now #d#
		2920
		2921	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2922	} else {
		2923	($path, $x, $y) = (undef, undef, undef);
		2924	}
		2925	}
		2926
		2927	my $map = eval {
		2928	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2929
		2930	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	2931	$map = $map->customise_for ($self);
		2932	$map = $check->($map, $x, $y, $self) if $check && $map;
		2933	} else {
		2934	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2935	}
1393		2936
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2937	$map
		2938	};
1396		2939
		2940	if ($@) {
		2941	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2942	LOG llevError | logBacktrace, Carp::longmess $@;
		2943	}
		2944
		2945	if ($gen == $self->{_goto_generation}) {
		2946	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2947	$self->leave_link ($map, $x, $y);
		2948	}
		2949
		2950	$done->($self) if $done;
1398	})->prio (1);	2951	})->prio (1);
1399	}	2952	}
1400		2953
1401	=item $player_object->enter_exit ($exit_object)	2954	=item $player_object->enter_exit ($exit_object)
1402		2955
…		…
1404		2957
1405	sub parse_random_map_params {	2958	sub parse_random_map_params {
1406	my ($spec) = @_;	2959	my ($spec) = @_;
1407		2960
1408	my $rmp = { # defaults	2961	my $rmp = { # defaults
1409	xsize => 10,	2962	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2963	ysize => (cf::rndm 15, 40),
		2964	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2965	#layout => string,
1411	};	2966	};
1412		2967
1413	for (split /\n/, $spec) {	2968	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2969	my ($k, $v) = split /\s+/, $_, 2;
1415		2970
…		…
1427	# that depends on the exit object	2982	# that depends on the exit object
1428		2983
1429	my $rmp = parse_random_map_params $exit->msg;	2984	my $rmp = parse_random_map_params $exit->msg;
1430		2985
1431	if ($exit->map) {	2986	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2987	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2988	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2989	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2990	$rmp->{origin_y} = $exit->y;
		2991
		2992	$exit->map->touch;
1436	}	2993	}
1437		2994
1438	$rmp->{random_seed} ||= $exit->random_seed;	2995	$rmp->{random_seed} ||= $exit->random_seed;
1439		2996
1440	my $data = cf::to_json $rmp;	2997	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1441	my $md5 = Digest::MD5::md5_hex $data;	2998	my $md5 = Digest::MD5::md5_hex $data;
		2999	my $meta = "$RANDOMDIR/$md5.meta";
1442		3000
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3001	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	3002	aio_write $fh, 0, (length $data), $data, 0;
		3003	undef $fh;
		3004	aio_rename "$meta~", $meta;
1445		3005
		3006	my $slaying = "?random/$md5";
		3007
		3008	if ($exit->valid) {
1446	$exit->slaying ("?random/$md5");	3009	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	3010	$exit->msg (undef);
		3011	}
1448	}	3012	}
1449	}	3013	}
1450		3014
1451	sub cf::object::player::enter_exit {	3015	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	3016	my ($self, $exit) = @_;
1453		3017
1454	return unless $self->type == cf::PLAYER;	3018	return unless $self->type == cf::PLAYER;
1455		3019
1456	$self->enter_link;	3020	$self->enter_link;
1457		3021
1458	(Coro::async {	3022	(async {
		3023	$Coro::current->{desc} = "enter_exit";
		3024
1459	unless (eval {	3025	unless (eval {
		3026	$self->deactivate_recursive; # just to be sure
1460		3027
		3028	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3029	my $x = $exit->stats->hp;
		3030	my $y = $exit->stats->sp;
		3031
		3032	# special map handling
		3033	my $slaying = $exit->slaying;
		3034
		3035	# special map handling
		3036	if ($slaying eq "/!") {
		3037	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3038
1461	prepare_random_map $exit	3039	prepare_random_map $exit
		3040	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3041
1462	if $exit->slaying eq "/!";	3042	$map = $exit->slaying;
1463		3043
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3044	} elsif ($slaying eq '!up') {
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	3045	$map = $exit->map->tile_path (cf::TILE_UP);
		3046	$x = $exit->x;
		3047	$y = $exit->y;
1466		3048
		3049	} elsif ($slaying eq '!down') {
		3050	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3051	$x = $exit->x;
		3052	$y = $exit->y;
		3053	}
		3054
		3055	$self->goto ($map, $x, $y);
		3056
		3057	# if exit is damned, update players death & WoR home-position
		3058	$self->contr->savebed ($map, $x, $y)
		3059	if $exit->flag (cf::FLAG_DAMNED);
		3060
1467	1;	3061	1
1468	}) {	3062	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	3063	$self->message ("Something went wrong deep within the deliantra server. "
1470	. "I'll try to bring you back to the map you were before. "	3064	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	3065	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	3066	cf::NDI_UNIQUE | cf::NDI_RED);
1473		3067
1474	warn "ERROR in enter_exit: $@";	3068	error "ERROR in enter_exit: $@";
1475	$self->leave_link;	3069	$self->leave_link;
1476	}	3070	}
1477	})->prio (1);	3071	})->prio (1);
1478	}	3072	}
1479		3073
1480	=head3 cf::client	3074	=head3 cf::client
1481		3075
1482	=over 4	3076	=over 4
1483		3077
1484	=item $client->send_drawinfo ($text, $flags)	3078	=item $client->send_big_packet ($pkt)
1485		3079
1486	Sends a drawinfo packet to the client. Circumvents output buffering so	3080	Like C<send_packet>, but tries to compress large packets, and fragments
1487	should not be used under normal circumstances.	3081	them as required.
1488		3082
1489	=cut	3083	=cut
1490		3084
		3085	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3086
		3087	sub cf::client::send_big_packet {
		3088	my ($self, $pkt) = @_;
		3089
		3090	# try lzf for large packets
		3091	$pkt = "lzf " . Compress::LZF::compress $pkt
		3092	if 1024 <= length $pkt and $self->{can_lzf};
		3093
		3094	# split very large packets
		3095	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3096	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3097	$pkt = "frag";
		3098	}
		3099
		3100	$self->send_packet ($pkt);
		3101	}
		3102
		3103	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3104
		3105	Send a msg packet to the client, formatting the msg for the client if
		3106	necessary. C<$type> should be a string identifying the type of the
		3107	message, with C<log> being the default. If C<$color> is negative, suppress
		3108	the message unless the client supports the msg packet.
		3109
		3110	=cut
		3111
		3112	# non-persistent channels (usually the info channel)
		3113	our %CHANNEL = (
		3114	"c/motd" => {
		3115	id => "infobox",
		3116	title => "MOTD",
		3117	reply => undef,
		3118	tooltip => "The message of the day",
		3119	},
		3120	"c/identify" => {
		3121	id => "infobox",
		3122	title => "Identify",
		3123	reply => undef,
		3124	tooltip => "Items recently identified",
		3125	},
		3126	"c/examine" => {
		3127	id => "infobox",
		3128	title => "Examine",
		3129	reply => undef,
		3130	tooltip => "Signs and other items you examined",
		3131	},
		3132	"c/shopinfo" => {
		3133	id => "infobox",
		3134	title => "Shop Info",
		3135	reply => undef,
		3136	tooltip => "What your bargaining skill tells you about the shop",
		3137	},
		3138	"c/book" => {
		3139	id => "infobox",
		3140	title => "Book",
		3141	reply => undef,
		3142	tooltip => "The contents of a note or book",
		3143	},
		3144	"c/lookat" => {
		3145	id => "infobox",
		3146	title => "Look",
		3147	reply => undef,
		3148	tooltip => "What you saw there",
		3149	},
		3150	"c/who" => {
		3151	id => "infobox",
		3152	title => "Players",
		3153	reply => undef,
		3154	tooltip => "Shows players who are currently online",
		3155	},
		3156	"c/body" => {
		3157	id => "infobox",
		3158	title => "Body Parts",
		3159	reply => undef,
		3160	tooltip => "Shows which body parts you posess and are available",
		3161	},
		3162	"c/statistics" => {
		3163	id => "infobox",
		3164	title => "Statistics",
		3165	reply => undef,
		3166	tooltip => "Shows your primary statistics",
		3167	},
		3168	"c/skills" => {
		3169	id => "infobox",
		3170	title => "Skills",
		3171	reply => undef,
		3172	tooltip => "Shows your experience per skill and item power",
		3173	},
		3174	"c/shopitems" => {
		3175	id => "infobox",
		3176	title => "Shop Items",
		3177	reply => undef,
		3178	tooltip => "Shows the items currently for sale in this shop",
		3179	},
		3180	"c/resistances" => {
		3181	id => "infobox",
		3182	title => "Resistances",
		3183	reply => undef,
		3184	tooltip => "Shows your resistances",
		3185	},
		3186	"c/pets" => {
		3187	id => "infobox",
		3188	title => "Pets",
		3189	reply => undef,
		3190	tooltip => "Shows information abotu your pets/a specific pet",
		3191	},
		3192	"c/perceiveself" => {
		3193	id => "infobox",
		3194	title => "Perceive Self",
		3195	reply => undef,
		3196	tooltip => "You gained detailed knowledge about yourself",
		3197	},
		3198	"c/uptime" => {
		3199	id => "infobox",
		3200	title => "Uptime",
		3201	reply => undef,
		3202	tooltip => "How long the server has been running since last restart",
		3203	},
		3204	"c/mapinfo" => {
		3205	id => "infobox",
		3206	title => "Map Info",
		3207	reply => undef,
		3208	tooltip => "Information related to the maps",
		3209	},
		3210	"c/party" => {
		3211	id => "party",
		3212	title => "Party",
		3213	reply => "gsay ",
		3214	tooltip => "Messages and chat related to your party",
		3215	},
		3216	"c/death" => {
		3217	id => "death",
		3218	title => "Death",
		3219	reply => undef,
		3220	tooltip => "Reason for and more info about your most recent death",
		3221	},
		3222	"c/fatal" => {
		3223	id => "fatal",
		3224	title => "Fatal Error",
		3225	reply => undef,
		3226	tooltip => "Reason for the server disconnect",
		3227	},
		3228	"c/say" => $SAY_CHANNEL,
		3229	"c/chat" => $CHAT_CHANNEL,
		3230	);
		3231
1491	sub cf::client::send_drawinfo {	3232	sub cf::client::send_msg {
		3233	my ($self, $channel, $msg, $color, @extra) = @_;
		3234
		3235	$msg = $self->pl->expand_cfpod ($msg)
		3236	unless $color & cf::NDI_VERBATIM;
		3237
		3238	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3239
		3240	# check predefined channels, for the benefit of C
		3241	if ($CHANNEL{$channel}) {
		3242	$channel = $CHANNEL{$channel};
		3243
		3244	$self->ext_msg (channel_info => $channel);
		3245	$channel = $channel->{id};
		3246
		3247	} elsif (ref $channel) {
		3248	# send meta info to client, if not yet sent
		3249	unless (exists $self->{channel}{$channel->{id}}) {
		3250	$self->{channel}{$channel->{id}} = $channel;
		3251	$self->ext_msg (channel_info => $channel);
		3252	}
		3253
		3254	$channel = $channel->{id};
		3255	}
		3256
		3257	return unless @extra || length $msg;
		3258
		3259	# default colour, mask it out
		3260	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3261	if $color & cf::NDI_DEF;
		3262
		3263	my $pkt = "msg "
		3264	. $self->{json_coder}->encode (
		3265	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3266	);
		3267
		3268	$self->send_big_packet ($pkt);
		3269	}
		3270
		3271	=item $client->ext_msg ($type, @msg)
		3272
		3273	Sends an ext event to the client.
		3274
		3275	=cut
		3276
		3277	sub cf::client::ext_msg($$@) {
1492	my ($self, $text, $flags) = @_;	3278	my ($self, $type, @msg) = @_;
1493		3279
1494	utf8::encode $text;	3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1496	}	3281	}
1497
1498		3282
1499	=item $success = $client->query ($flags, "text", \&cb)	3283	=item $success = $client->query ($flags, "text", \&cb)
1500		3284
1501	Queues a query to the client, calling the given callback with	3285	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3286	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3287	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1504		3288
1505	Queries can fail, so check the return code. Or don't, as queries will become	3289	Queries can fail, so check the return code. Or don't, as queries will
1506	reliable at some point in the future.	3290	become reliable at some point in the future.
1507		3291
1508	=cut	3292	=cut
1509		3293
1510	sub cf::client::query {	3294	sub cf::client::query {
1511	my ($self, $flags, $text, $cb) = @_;	3295	my ($self, $flags, $text, $cb) = @_;
…		…
1519	utf8::encode $text;	3303	utf8::encode $text;
1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3304	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1521		3305
1522	$self->send_packet ($self->{query_queue}[0][0])	3306	$self->send_packet ($self->{query_queue}[0][0])
1523	if @{ $self->{query_queue} } == 1;	3307	if @{ $self->{query_queue} } == 1;
		3308
		3309	1
		3310	}
		3311
		3312	=item $client->update_command_faces
		3313
		3314	=cut
		3315
		3316	our %COMMAND_FACE;
		3317
		3318	sub cf::client::update_command_faces {
		3319	my ($self) = @_;
		3320
		3321	my @faces = grep $_,
		3322	$COMMAND_FACE{preferred},
		3323	$COMMAND_FACE{standard},
		3324	$COMMAND_FACE{skill},
		3325	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3326	$COMMAND_FACE{emote},
		3327	;
		3328
		3329	$self->send_face ($_)
		3330	for @faces;
		3331	$self->flush_fx;
		3332
		3333	$self->ext_msg (command_list => @faces);
		3334	}
		3335
		3336	=item cf::client::set_command_face $type, $commands
		3337
		3338	=cut
		3339
		3340	sub cf::client::set_command_face {
		3341	my ($type, $list) = @_;
		3342
		3343	my $idx = &cf::face::set ( #d# ugly forward reference
		3344	"command_list/$type" => cf::FT_RSRC,
		3345	JSON::XS->new->utf8->encode ([ sort @$list ])
		3346	);
		3347
		3348	$COMMAND_FACE{$type} = $idx;
1524	}	3349	}
1525		3350
1526	cf::client->attach (	3351	cf::client->attach (
		3352	on_connect => sub {
		3353	my ($ns) = @_;
		3354
		3355	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3356	},
1527	on_reply => sub {	3357	on_reply => sub {
1528	my ($ns, $msg) = @_;	3358	my ($ns, $msg) = @_;
1529		3359
1530	# this weird shuffling is so that direct followup queries	3360	# this weird shuffling is so that direct followup queries
1531	# get handled first	3361	# get handled first
1532	my $queue = delete $ns->{query_queue};	3362	my $queue = delete $ns->{query_queue}
		3363	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		3364
1534	(shift @$queue)->[1]->($msg);	3365	(shift @$queue)->[1]->($msg);
		3366	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		3367
1536	push @{ $ns->{query_queue} }, @$queue;	3368	push @{ $ns->{query_queue} }, @$queue;
1537		3369
1538	if (@{ $ns->{query_queue} } == @$queue) {	3370	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	3371	if (@$queue) {
…		…
1541	} else {	3373	} else {
1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3374	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1543	}	3375	}
1544	}	3376	}
1545	},	3377	},
		3378	on_exticmd => sub {
		3379	my ($ns, $buf) = @_;
		3380
		3381	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3382
		3383	if (ref $msg) {
		3384	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3385
		3386	if (my $cb = $EXTIACMD{$type}) {
		3387	$cb->(
		3388	$ns,
		3389	sub {
		3390	$ns->ext_msg ("reply-$reply", @_)
		3391	if $reply;
		3392	},
		3393	@payload
		3394	);
		3395	} else {
		3396	my @reply;
		3397
		3398	if (my $cb = $EXTICMD{$type}) {
		3399	@reply = $cb->($ns, @payload);
		3400	}
		3401
		3402	$ns->ext_msg ("reply-$reply", @reply)
		3403	if $reply;
		3404	}
		3405	} else {
		3406	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3407	}
		3408
		3409	cf::override;
		3410	},
1546	);	3411	);
1547		3412
1548	=item $client->coro (\&cb)	3413	=item $client->async (\&cb)
1549		3414
1550	Create a new coroutine, running the specified callback. The coroutine will	3415	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	3416	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	3417	or loss of connection).
1553		3418
1554	=cut	3419	=cut
1555		3420
1556	sub cf::client::coro {	3421	sub cf::client::async {
1557	my ($self, $cb) = @_;	3422	my ($self, $cb) = @_;
1558		3423
1559	my $coro; $coro = async {	3424	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		3425
1566	$coro->on_destroy (sub {	3426	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	3427	delete $self->{_coro}{$coro+0};
1568	});	3428	});
1569		3429
…		…
1571		3431
1572	$coro	3432	$coro
1573	}	3433	}
1574		3434
1575	cf::client->attach (	3435	cf::client->attach (
1576	on_destroy => sub {	3436	on_client_destroy => sub {
1577	my ($ns) = @_;	3437	my ($ns) = @_;
1578		3438
1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3439	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1580	},	3440	},
1581	);	3441	);
…		…
1596	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
1597	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
1598		3458
1599	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
1600		3460
1601	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3461	$safe->permit_only (Opcode::opset qw(
		3462	:base_core :base_mem :base_orig :base_math :base_loop
		3463	grepstart grepwhile mapstart mapwhile
		3464	sort time
		3465	));
1602		3466
1603	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
1604		3468
1605	=pod	3469	=pod
1606		3470
1607	The following fucntions and emthods are available within a safe environment:	3471	The following functions and methods are available within a safe environment:
1608		3472
1609	cf::object contr pay_amount pay_player map	3473	cf::object
		3474	contr pay_amount pay_player map x y force_find force_add destroy
		3475	insert remove name archname title slaying race decrease split
		3476	value
		3477
1610	cf::object::player player	3478	cf::object::player
1611	cf::player peaceful	3479	player
1612	cf::map trigger	3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
1613		3486
1614	=cut	3487	=cut
1615		3488
1616	for (	3489	for (
1617	["cf::object" => qw(contr pay_amount pay_player map)],	3490	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3491	insert remove inv nrof name archname title slaying race
		3492	decrease split destroy change_exp value msg lore send_msg)],
1618	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
1619	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
1620	["cf::map" => qw(trigger)],	3495	["cf::map" => qw(trigger)],
1621	) {	3496	) {
1622	no strict 'refs';
1623	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1625	for @funs;	3499	for @funs;
1626	}	3500	}
1627		3501
…		…
1642		3516
1643	my $qcode = $code;	3517	my $qcode = $code;
1644	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1645	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
1646		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
1647	local $_;	3524	local $_;
1648	local @safe::cf::_safe_eval_args = values %vars;
1649		3525
1650	my $eval =	3526	my $eval =
1651	"do {\n"	3527	"do {\n"
1652	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1653	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
1654	. $code	3530	. $code
1655	. "\n}"	3531	. "\n}"
1656	;	3532	;
1657		3533
		3534	if ($CFG{safe_eval}) {
1658	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
1659	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1660	sub_generation_inc;	3538	sub_generation_inc;
		3539	} else {
		3540	local @cf::_safe_eval_args = values %vars;
		3541	@res = wantarray ? eval eval : scalar eval $eval;
		3542	}
1661		3543
1662	if ($@) {	3544	if ($@) {
1663	warn "$@";	3545	warn "$@",
1664	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
1665	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
1666	}	3548	}
1667		3549
1668	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
1669	}	3551	}
1670		3552
…		…
1684	=cut	3566	=cut
1685		3567
1686	sub register_script_function {	3568	sub register_script_function {
1687	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
1688		3570
1689	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
1690	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
1691	}	3573	}
1692		3574
1693	=back	3575	=back
1694		3576
1695	=cut	3577	=cut
1696		3578
1697	#############################################################################	3579	#############################################################################
1698		3580	# the server's init and main functions
1699	=head2 EXTENSION DATABASE SUPPORT
1700
1701	Crossfire maintains a very simple database for extension use. It can
1702	currently store anything that can be serialised using Storable, which
1703	excludes objects.
1704
1705	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.
1707
1708	=over 4
1709
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key
1717
1718	Returns a single value from the database
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724
1725	=item cf::db_put $family => $key => $value
1726
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737
1738	=cut
1739
1740	our $DB;
1741		3581
1742	{	3582	{
1743	my $path = cf::localdir . "/database.pst";	3583	package cf::face;
1744		3584
1745	sub db_load() {	3585	our %HASH; # hash => idx
1746	warn "loading database $path\n";#d# remove later	3586	our @DATA; # dynamically-created facedata, only faceste 0 used
1747	$DB = stat $path ? Storable::retrieve $path : { };	3587	our @FOFS; # file offset, if > 0
1748	}	3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
1749		3591
1750	my $pid;	3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
1751		3595
1752	sub db_save() {	3596	my $idx = cf::face::find $name;
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}
1761	}
1762		3597
1763	my $dirty;	3598	if ($idx) {
1764		3599	delete $HASH{cf::face::get_csum $idx};
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});
1773
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {
1780	@_ >= 2
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784
1785	sub db_put($$;$) {
1786	if (@_ >= 3) {
1787	$DB->{$_[0]}{$_[1]} = $_[2];
1788	} else {	3600	} else {
1789	$DB->{$_[0]} = $_[1];	3601	$idx = cf::face::alloc $name;
1790	}
1791	db_dirty;
1792	}
1793
1794	cf::global->attach (
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	3602	}
		3603
		3604	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3605
		3606	cf::face::set_type $idx, $type;
		3607	cf::face::set_csum $idx, 0, $hash;
		3608
		3609	# we need to destroy the SV itself, not just modify it, as a running ix
		3610	# might hold a reference to it: "delete" achieves that.
		3611	delete $FOFS[0][$idx];
		3612	delete $DATA[0][$idx];
		3613	$DATA[0][$idx] = $data;
		3614	$SIZE[0][$idx] = length $data;
		3615	delete $META[$idx];
		3616	$HASH{$hash} = $idx;#d#
		3617
		3618	$idx
		3619	}
		3620
		3621	sub _get_data($$$) {
		3622	my ($idx, $set, $cb) = @_;
		3623
		3624	if (defined $DATA[$set][$idx]) {
		3625	$cb->($DATA[$set][$idx]);
		3626	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3627	my $size = $SIZE[$set][$idx];
		3628	my $buf;
		3629	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3630	if ($_[0] == $size) {
		3631	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3632	$cb->($buf);
		3633	} else {
		3634	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3635	}
		3636	};
		3637	} else {
		3638	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3639	}
		3640	}
		3641
		3642	# rather ineffient
		3643	sub cf::face::get_data($;$) {
		3644	my ($idx, $set) = @_;
		3645
		3646	_get_data $idx, $set, Coro::rouse_cb;
		3647	Coro::rouse_wait
		3648	}
		3649
		3650	sub cf::face::ix {
		3651	my ($ns, $set, $idx, $pri) = @_;
		3652
		3653	_get_data $idx, $set, sub {
		3654	$ns->ix_send ($idx, $pri, $_[0]);
		3655	};
		3656	}
		3657	}
		3658
		3659	sub load_facedata($) {
		3660	my ($path) = @_;
		3661
		3662	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3663
		3664	trace "loading facedata from $path\n";
		3665
		3666	my $facedata = decode_storable load_file "$path/faceinfo";
		3667
		3668	$facedata->{version} == 2
		3669	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3670
		3671	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3672	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3673
		3674	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3675
		3676	# BEGIN ATOMIC
		3677	# from here on, everything must be atomic - no thread switch allowed
		3678	my $t1 = EV::time;
		3679
		3680	{
		3681	my $faces = $facedata->{faceinfo};
		3682
		3683	for my $face (sort keys %$faces) {
		3684	my $info = $faces->{$face};
		3685	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3686
		3687	cf::face::set_visibility $idx, $info->{visibility};
		3688	cf::face::set_magicmap $idx, $info->{magicmap};
		3689	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3690	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3691	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3692	$cf::face::HASH{$info->{hash64}} = $idx;
		3693	delete $cf::face::META[$idx];
		3694	}
		3695
		3696	while (my ($face, $info) = each %$faces) {
		3697	next unless $info->{smooth};
		3698
		3699	my $idx = cf::face::find $face
		3700	or next;
		3701
		3702	if (my $smooth = cf::face::find $info->{smooth}) {
		3703	cf::face::set_smooth $idx, $smooth;
		3704	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3705	} else {
		3706	error "smooth face '$info->{smooth}' not found for face '$face'";
		3707	}
		3708	}
		3709	}
		3710
		3711	{
		3712	my $anims = $facedata->{animinfo};
		3713
		3714	while (my ($anim, $info) = each %$anims) {
		3715	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3716	}
		3717
		3718	cf::anim::invalidate_all; # d'oh
		3719	}
		3720
		3721	{
		3722	my $res = $facedata->{resource};
		3723
		3724	while (my ($name, $info) = each %$res) {
		3725	if (defined (my $type = $info->{type})) {
		3726	# TODO: different hash - must free and use new index, or cache ixface data queue
		3727	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3728
		3729	cf::face::set_type $idx, $type;
		3730	cf::face::set_csum $idx, 0, $info->{hash};
		3731	$cf::face::SIZE[0][$idx] = $info->{size};
		3732	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3733	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3734	$cf::face::HASH{$info->{hash}} = $idx;
		3735	} else {
		3736	# $RESOURCE{$name} = $info; # unused
		3737	}
		3738	}
		3739	}
		3740
		3741	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3742
		3743	# HACK to clear player env face cache, we need some signal framework
		3744	# for this (global event?)
		3745	%ext::player_env::MUSIC_FACE_CACHE = ();
		3746
		3747	# END ATOMIC
		3748
		3749	cf::debug "facedata atomic update time ", EV::time - $t1;
		3750
		3751	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3752
		3753	aio_close $fh if $fh; # close old facedata
		3754
		3755	1
		3756	}
		3757
		3758	register_exticmd fx_want => sub {
		3759	my ($ns, $want) = @_;
		3760
		3761	while (my ($k, $v) = each %$want) {
		3762	$ns->fx_want ($k, $v);
		3763	}
		3764	};
		3765
		3766	sub load_resource_file($) {
		3767	my $guard = lock_acquire "load_resource_file";
		3768
		3769	my $status = load_resource_file_ $_[0];
		3770	get_slot 0.1, 100;
		3771	cf::arch::commit_load;
		3772
		3773	$status
		3774	}
		3775
		3776	sub reload_exp_table {
		3777	_reload_exp_table;
		3778
		3779	cf::face::set
		3780	"res/exp_table" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3783	);
		3784	}
		3785
		3786	sub reload_materials {
		3787	_reload_materials;
		3788	}
		3789
		3790	sub reload_regions {
		3791	# HACK to clear player env face cache, we need some signal framework
		3792	# for this (global event?)
		3793	%ext::player_env::MUSIC_FACE_CACHE = ();
		3794
		3795	load_resource_file "$MAPDIR/regions"
		3796	or die "unable to load regions file\n";
		3797
		3798	for (cf::region::list) {
		3799	$_->{match} = qr/$_->{match}/
		3800	if exists $_->{match};
		3801	}
		3802	}
		3803
		3804	sub reload_facedata {
		3805	load_facedata $DATADIR
		3806	or die "unable to load facedata\n";
		3807	}
		3808
		3809	sub reload_archetypes {
		3810	load_resource_file "$DATADIR/archetypes"
		3811	or die "unable to load archetypes\n";
		3812
		3813	cf::face::set
		3814	"res/skill_info" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3817	);
		3818
		3819	cf::face::set
		3820	"res/spell_paths" => FT_RSRC,
		3821	JSON::XS->new->utf8->canonical->encode (
		3822	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3823	);
		3824
		3825	# command completion
		3826	my @commands;
		3827
		3828	for (0..cf::arch::skillvec_size - 1) {
		3829	my $skill = cf::arch::skillvec $_;
		3830	my $name = $skill->name;
		3831	my $flags = cf::skill_flags $skill->subtype;
		3832
		3833	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3834	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3835	}
		3836
		3837	cf::client::set_command_face skill => \@commands;
		3838	}
		3839
		3840	sub reload_treasures {
		3841	load_resource_file "$DATADIR/treasures"
		3842	or die "unable to load treasurelists\n";
		3843	}
		3844
		3845	sub reload_sound {
		3846	trace "loading sound config from $DATADIR/sound\n";
		3847
		3848	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3849
		3850	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3851	my $sound = $soundconf->{compat}[$_]
		3852	or next;
		3853
		3854	my $face = cf::face::find "sound/$sound->[1]";
		3855	cf::sound::set $sound->[0] => $face;
		3856	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3857	}
		3858
		3859	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3860	my $face = cf::face::find "sound/$v";
		3861	cf::sound::set $k => $face;
		3862	}
		3863	}
		3864
		3865	sub reload_resources {
		3866	trace "reloading resource files...\n";
		3867
		3868	reload_materials;
		3869	reload_facedata;
		3870	reload_exp_table;
		3871	reload_sound;
		3872	reload_archetypes;
		3873	reload_regions;
		3874	reload_treasures;
		3875
		3876	trace "finished reloading resource files\n";
		3877	}
		3878
		3879	sub reload_config {
		3880	trace "reloading config file...\n";
		3881
		3882	my $config = load_file "$CONFDIR/config";
		3883	utf8::decode $config;
		3884	*CFG = decode_yaml $config;
		3885
		3886	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3887
		3888	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3889	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3890
		3891	if (exists $CFG{mlockall}) {
		3892	eval {
		3893	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3894	and die "WARNING: m(un)lockall failed: $!\n";
		3895	};
		3896	warn $@ if $@;
		3897	}
		3898	}
		3899
		3900	sub pidfile() {
		3901	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3902	or die "$PIDFILE: $!";
		3903	flock $fh, &Fcntl::LOCK_EX
		3904	or die "$PIDFILE: flock: $!";
		3905	$fh
		3906	}
		3907
		3908	# make sure only one server instance is running at any one time
		3909	sub atomic {
		3910	my $fh = pidfile;
		3911
		3912	my $pid = <$fh>;
		3913	kill 9, $pid if $pid > 0;
		3914
		3915	seek $fh, 0, 0;
		3916	print $fh $$;
		3917	}
		3918
		3919	sub main_loop {
		3920	trace "EV::run starting\n";
		3921	if (1) {
		3922	EV::run;
		3923	}
		3924	trace "EV::run returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
		3927
		3928	sub main {
		3929	cf::init_globals; # initialise logging
		3930
		3931	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3932	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3933	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3934	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3935
		3936	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3937
		3938	# we must not ever block the main coroutine
		3939	$Coro::idle = sub {
		3940	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3941	(async {
		3942	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3943	EV::run EV::RUN_ONCE;
		3944	})->prio (Coro::PRIO_MAX);
1799	);	3945	};
		3946
		3947	evthread_start IO::AIO::poll_fileno;
		3948
		3949	cf::sync_job {
		3950	cf::incloader::init ();
		3951
		3952	db_init;
		3953
		3954	cf::init_anim;
		3955	cf::init_attackmess;
		3956	cf::init_dynamic;
		3957
		3958	cf::load_settings;
		3959
		3960	reload_resources;
		3961	reload_config;
		3962
		3963	cf::init_uuid;
		3964	cf::init_signals;
		3965	cf::init_skills;
		3966
		3967	cf::init_beforeplay;
		3968
		3969	atomic;
		3970
		3971	load_extensions;
		3972
		3973	utime time, time, $RUNTIMEFILE;
		3974
		3975	# no (long-running) fork's whatsoever before this point(!)
		3976	use POSIX ();
		3977	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3978
		3979	cf::_post_init 0;
		3980	};
		3981
		3982	cf::object::thawer::errors_are_fatal 0;
		3983	info "parse errors in files are no longer fatal from this point on.\n";
		3984
		3985	AE::postpone {
		3986	undef &main; # free gobs of memory :)
		3987	};
		3988
		3989	goto &main_loop;
1800	}	3990	}
1801		3991
1802	#############################################################################	3992	#############################################################################
1803	# the server's main()	3993	# initialisation and cleanup
1804		3994
1805	sub cfg_load {	3995	# install some emergency cleanup handlers
1806	open my $fh, "<:utf8", cf::confdir . "/config"	3996	BEGIN {
		3997	our %SIGWATCHER = ();
		3998	for my $signal (qw(INT HUP TERM)) {
		3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		4000	cf::cleanup "SIG$signal";
		4001	};
		4002	}
		4003	}
		4004
		4005	sub write_runtime_sync {
		4006	my $t0 = AE::time;
		4007
		4008	# first touch the runtime file to show we are still running:
		4009	# the fsync below can take a very very long time.
		4010
		4011	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4012
		4013	my $guard = cf::lock_acquire "write_runtime";
		4014
		4015	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1807	or return;	4016	or return;
1808		4017
1809	local $/;	4018	my $value = $cf::RUNTIME + 90 + 10;
1810	*CFG = YAML::Syck::Load <$fh>;	4019	# 10 is the runtime save interval, for a monotonic clock
1811	}	4020	# 60 allows for the watchdog to kill the server.
1812		4021
1813	sub main {	4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1814	# we must not ever block the main coroutine	4023	and return;
1815	local $Coro::idle = sub {	4024
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	4025	# always fsync - this file is important
1817	(Coro::unblock_sub {	4026	aio_fsync $fh
1818	Event::one_event;	4027	and return;
		4028
		4029	# touch it again to show we are up-to-date
		4030	aio_utime $fh, undef, undef;
		4031
		4032	close $fh
		4033	or return;
		4034
		4035	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4036	and return;
		4037
		4038	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4039
		4040	1
		4041	}
		4042
		4043	our $uuid_lock;
		4044	our $uuid_skip;
		4045
		4046	sub write_uuid_sync($) {
		4047	$uuid_skip ||= $_[0];
		4048
		4049	return if $uuid_lock;
		4050	local $uuid_lock = 1;
		4051
		4052	my $uuid = "$LOCALDIR/uuid";
		4053
		4054	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4055	or return;
		4056
		4057	my $value = uuid_seq uuid_cur;
		4058
		4059	unless ($value) {
		4060	info "cowardly refusing to write zero uuid value!\n";
		4061	return;
		4062	}
		4063
		4064	my $value = uuid_str $value + $uuid_skip;
		4065	$uuid_skip = 0;
		4066
		4067	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4068	and return;
		4069
		4070	# always fsync - this file is important
		4071	aio_fsync $fh
		4072	and return;
		4073
		4074	close $fh
		4075	or return;
		4076
		4077	aio_rename "$uuid~", $uuid
		4078	and return;
		4079
		4080	trace "uuid file written ($value).\n";
		4081
		4082	1
		4083
		4084	}
		4085
		4086	sub write_uuid($$) {
		4087	my ($skip, $sync) = @_;
		4088
		4089	$sync ? write_uuid_sync $skip
		4090	: async { write_uuid_sync $skip };
		4091	}
		4092
		4093	sub emergency_save() {
		4094	my $freeze_guard = cf::freeze_mainloop;
		4095
		4096	info "emergency_perl_save: enter\n";
		4097
		4098	# this is a trade-off: we want to be very quick here, so
		4099	# save all maps without fsync, and later call a global sync
		4100	# (which in turn might be very very slow)
		4101	local $USE_FSYNC = 0;
		4102
		4103	cf::sync_job {
		4104	cf::write_runtime_sync; # external watchdog should not bark
		4105
		4106	# use a peculiar iteration method to avoid tripping on perl
		4107	# refcount bugs in for. also avoids problems with players
		4108	# and maps saved/destroyed asynchronously.
		4109	info "emergency_perl_save: begin player save\n";
		4110	for my $login (keys %cf::PLAYER) {
		4111	my $pl = $cf::PLAYER{$login} or next;
		4112	$pl->valid or next;
		4113	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4114	$pl->save;
		4115	}
		4116	info "emergency_perl_save: end player save\n";
		4117
		4118	cf::write_runtime_sync; # external watchdog should not bark
		4119
		4120	info "emergency_perl_save: begin map save\n";
		4121	for my $path (keys %cf::MAP) {
		4122	my $map = $cf::MAP{$path} or next;
		4123	$map->valid or next;
		4124	$map->save;
		4125	}
		4126	info "emergency_perl_save: end map save\n";
		4127
		4128	cf::write_runtime_sync; # external watchdog should not bark
		4129
		4130	info "emergency_perl_save: begin database checkpoint\n";
		4131	BDB::db_env_txn_checkpoint $DB_ENV;
		4132	info "emergency_perl_save: end database checkpoint\n";
		4133
		4134	info "emergency_perl_save: begin write uuid\n";
		4135	write_uuid_sync 1;
		4136	info "emergency_perl_save: end write uuid\n";
		4137
		4138	cf::write_runtime_sync; # external watchdog should not bark
		4139
		4140	trace "emergency_perl_save: syncing database to disk";
		4141	BDB::db_env_txn_checkpoint $DB_ENV;
		4142
		4143	info "emergency_perl_save: starting sync\n";
		4144	IO::AIO::aio_sync sub {
		4145	info "emergency_perl_save: finished sync\n";
1819	})->();	4146	};
		4147
		4148	cf::write_runtime_sync; # external watchdog should not bark
		4149
		4150	trace "emergency_perl_save: flushing outstanding aio requests";
		4151	while (IO::AIO::nreqs || BDB::nreqs) {
		4152	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4153	}
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
1820	};	4156	};
1821		4157
1822	cfg_load;	4158	info "emergency_perl_save: leave\n";
1823	db_load;	4159	}
		4160
		4161	sub post_cleanup {
		4162	my ($make_core) = @_;
		4163
		4164	IO::AIO::flush;
		4165
		4166	error Carp::longmess "post_cleanup backtrace"
		4167	if $make_core;
		4168
		4169	my $fh = pidfile;
		4170	unlink $PIDFILE if <$fh> == $$;
		4171	}
		4172
		4173	# a safer delete_package, copied from Symbol
		4174	sub clear_package($) {
		4175	my $pkg = shift;
		4176
		4177	# expand to full symbol table name if needed
		4178	unless ($pkg =~ /^main::.*::$/) {
		4179	$pkg = "main$pkg" if $pkg =~ /^::/;
		4180	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4181	$pkg .= '::' unless $pkg =~ /::$/;
		4182	}
		4183
		4184	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4185	my $stem_symtab = *{$stem}{HASH};
		4186
		4187	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4188	or return;
		4189
		4190	# clear all symbols
		4191	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4192	for my $name (keys %$leaf_symtab) {
		4193	_gv_clear *{"$pkg$name"};
		4194	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4195	}
		4196	}
		4197
		4198	sub do_reload_perl() {
		4199	# can/must only be called in main
		4200	unless (in_main) {
		4201	error "can only reload from main coroutine";
		4202	return;
		4203	}
		4204
		4205	return if $RELOAD++;
		4206
		4207	my $t1 = AE::time;
		4208
		4209	while ($RELOAD) {
		4210	cf::get_slot 0.1, -1, "reload_perl";
		4211	info "perl_reload: reloading...";
		4212
		4213	trace "perl_reload: entering sync_job";
		4214
		4215	cf::sync_job {
		4216	#cf::emergency_save;
		4217
		4218	trace "perl_reload: cancelling all extension coros";
		4219	$_->cancel for values %EXT_CORO;
		4220	%EXT_CORO = ();
		4221
		4222	trace "perl_reload: removing commands";
		4223	%COMMAND = ();
		4224
		4225	trace "perl_reload: removing ext/exti commands";
		4226	%EXTCMD = ();
		4227	%EXTICMD = ();
		4228
		4229	trace "perl_reload: unloading/nuking all extensions";
		4230	for my $pkg (@EXTS) {
		4231	trace "... unloading $pkg";
		4232
		4233	if (my $cb = $pkg->can ("unload")) {
		4234	eval {
		4235	$cb->($pkg);
		4236	1
		4237	} or error "$pkg unloaded, but with errors: $@";
		4238	}
		4239
		4240	trace "... clearing $pkg";
		4241	clear_package $pkg;
		4242	}
		4243
		4244	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4245	while (my ($k, $v) = each %INC) {
		4246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4247
		4248	trace "... unloading $k";
		4249	delete $INC{$k};
		4250
		4251	$k =~ s/\.pm$//;
		4252	$k =~ s/\//::/g;
		4253
		4254	if (my $cb = $k->can ("unload_module")) {
		4255	$cb->();
		4256	}
		4257
		4258	clear_package $k;
		4259	}
		4260
		4261	trace "perl_reload: getting rid of safe::, as good as possible";
		4262	clear_package "safe::$_"
		4263	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		4264
		4265	trace "perl_reload: unloading cf.pm \"a bit\"";
		4266	delete $INC{"cf.pm"};
		4267	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		4268
		4269	# don't, removes xs symbols, too,
		4270	# and global variables created in xs
		4271	#clear_package __PACKAGE__;
		4272
		4273	info "perl_reload: unload completed, starting to reload now";
		4274
		4275	trace "perl_reload: reloading cf.pm";
		4276	require cf;
		4277	cf::_connect_to_perl_1;
		4278
		4279	trace "perl_reload: loading config and database again";
		4280	cf::reload_config;
		4281
		4282	trace "perl_reload: loading extensions";
1824	load_extensions;	4283	cf::load_extensions;
1825	Event::loop;	4284
		4285	if ($REATTACH_ON_RELOAD) {
		4286	trace "perl_reload: reattaching attachments to objects/players";
		4287	_global_reattach; # objects, sockets
		4288	trace "perl_reload: reattaching attachments to maps";
		4289	reattach $_ for values %MAP;
		4290	trace "perl_reload: reattaching attachments to players";
		4291	reattach $_ for values %PLAYER;
		4292	}
		4293
		4294	cf::_post_init 1;
		4295
		4296	trace "perl_reload: leaving sync_job";
		4297
		4298	1
		4299	} or do {
		4300	error $@;
		4301	cf::cleanup "perl_reload: error, exiting.";
		4302	};
		4303
		4304	--$RELOAD;
		4305	}
		4306
		4307	$t1 = AE::time - $t1;
		4308	info "perl_reload: completed in ${t1}s\n";
		4309	};
		4310
		4311	our $RELOAD_WATCHER; # used only during reload
		4312
		4313	sub reload_perl() {
		4314	# doing reload synchronously and two reloads happen back-to-back,
		4315	# coro crashes during coro_state_free->destroy here.
		4316
		4317	$RELOAD_WATCHER ||= cf::async {
		4318	Coro::AIO::aio_wait cache_extensions;
		4319
		4320	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4321	do_reload_perl;
		4322	undef $RELOAD_WATCHER;
		4323	};
		4324	};
1826	}	4325	}
		4326
		4327	register_command "reload" => sub {
		4328	my ($who, $arg) = @_;
		4329
		4330	if ($who->flag (FLAG_WIZ)) {
		4331	$who->message ("reloading server.");
		4332	async {
		4333	$Coro::current->{desc} = "perl_reload";
		4334	reload_perl;
		4335	};
		4336	}
		4337	};
1827		4338
1828	#############################################################################	4339	#############################################################################
1829	# initialisation
1830		4340
1831	sub perl_reload() {	4341	my $bug_warning = 0;
1832	# can/must only be called in main	4342
		4343	sub wait_for_tick() {
		4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4345
		4346	$WAIT_FOR_TICK->wait;
		4347	}
		4348
		4349	sub wait_for_tick_begin() {
		4350	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4351
		4352	my $signal = new Coro::Signal;
		4353	push @WAIT_FOR_TICK_BEGIN, $signal;
		4354	$signal->wait;
		4355	}
		4356
		4357	sub tick {
1833	if ($Coro::current != $Coro::main) {	4358	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	4359	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4360	unless ++$bug_warning > 10;
1835	return;	4361	return;
1836	}	4362	}
1837		4363
1838	warn "reloading...";	4364	cf::one_tick; # one server iteration
1839		4365
1840	local $FREEZE = 1;	4366	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
1841	cf::emergency_save;
1842		4367
1843	eval {	4368	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1844	# if anything goes wrong in here, we should simply crash as we already saved	4369	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1845		4370	Coro::async_pool {
1846	# cancel all watchers	4371	$Coro::current->{desc} = "runtime saver";
1847	for (Event::all_watchers) {	4372	write_runtime_sync
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	4373	or error "ERROR: unable to write runtime file: $!";
1849	}	4374	};
		4375	}
1850		4376
1851	# cancel all extension coros	4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
1852	$_->cancel for values %EXT_CORO;	4378	$sig->send;
1853	%EXT_CORO = ();	4379	}
		4380	$WAIT_FOR_TICK->broadcast;
1854		4381
1855	# unload all extensions	4382	$LOAD = ($NOW - $TICK_START) / $TICK;
1856	for (@exts) {	4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1857	warn "unloading <$_>";
1858	unload_extension $_;
1859	}
1860		4384
1861	# unload all modules loaded from $LIBDIR	4385	if (0) {
1862	while (my ($k, $v) = each %INC) {	4386	if ($NEXT_TICK) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4387	my $jitter = $TICK_START - $NEXT_TICK;
		4388	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4389	debug "jitter $JITTER\n";#d#
		4390	}
		4391	}
		4392	}
1864		4393
1865	warn "removing <$k>";	4394	{
1866	delete $INC{$k};	4395	# configure BDB
		4396	info "initialising database";
1867		4397
1868	$k =~ s/\.pm$//;	4398	BDB::min_parallel 16;
1869	$k =~ s/\//::/g;	4399	BDB::max_poll_reqs $TICK * 0.1;
		4400	#$AnyEvent::BDB::WATCHER->priority (1);
1870		4401
1871	if (my $cb = $k->can ("unload_module")) {	4402	unless ($DB_ENV) {
1872	$cb->();	4403	$DB_ENV = BDB::db_env_create;
		4404	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4405	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4406	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4407	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4408	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4409
		4410	cf::sync_job {
		4411	eval {
		4412	BDB::db_env_open
		4413	$DB_ENV,
		4414	$BDBDIR,
		4415	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4416	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4417	0666;
		4418
		4419	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1873	}	4420	};
1874		4421
1875	Symbol::delete_package $k;	4422	cf::cleanup "db_env_open(db): $@" if $@;
1876	}	4423	};
		4424	}
1877		4425
1878	# sync database to disk	4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1879	cf::db_sync;	4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible
1883	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"
1890	delete $INC{"cf.pm"};
1891
1892	# don't, removes xs symbols, too,
1893	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;
1895
1896	# reload cf.pm
1897	warn "reloading cf.pm";
1898	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900
1901	# load config and database again
1902	cf::cfg_load;
1903	cf::db_load;
1904
1905	# load extensions
1906	warn "load extensions";
1907	cf::load_extensions;
1908
1909	# reattach attachments to objects
1910	warn "reattach";
1911	_global_reattach;
1912	};	4428	};
1913		4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1914	if ($@) {	4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1915	warn $@;
1916	warn "error while reloading, exiting.";
1917	exit 1;
1918	}	4431	};
		4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
1919		4435
1920	warn "reloaded successfully";	4436	info "database initialised";
1921	};	4437	}
1922		4438
1923	#############################################################################	4439	{
		4440	# configure IO::AIO
1924		4441
1925	unless ($LINK_MAP) {	4442	info "initialising aio";
1926	$LINK_MAP = cf::map::new;	4443	IO::AIO::min_parallel 8;
		4444	IO::AIO::max_poll_time $TICK * 0.1;
		4445	undef $AnyEvent::AIO::WATCHER;
		4446	info "aio initialised";
		4447	}
1927		4448
1928	$LINK_MAP->width (41);	4449	our $_log_backtrace;
1929	$LINK_MAP->height (41);	4450	our $_log_backtrace_last;
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934		4451
1935	# dirty hack because... archetypes are not yet loaded	4452	sub _log_backtrace {
1936	Event->timer (	4453	my ($msg, @addr) = @_;
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940		4454
1941	# provide some exits "home"	4455	$msg =~ s/\n$//;
1942	my $exit = cf::object::new "exit";
1943		4456
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);	4457	if ($_log_backtrace_last eq $msg) {
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);	4458	LOG llevInfo, "[ABT] $msg\n";
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);	4459	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4460	# limit the # of concurrent backtraces
		4461	} elsif ($_log_backtrace < 2) {
		4462	$_log_backtrace_last = $msg;
		4463	++$_log_backtrace;
		4464	my $perl_bt = Carp::longmess $msg;
		4465	async {
		4466	$Coro::current->{desc} = "abt $msg";
1947		4467
1948	$LINK_MAP->insert ($exit->clone, 19, 19);	4468	my @bt = fork_call {
1949	$LINK_MAP->insert ($exit->clone, 19, 20);	4469	@addr = map { sprintf "%x", $_ } @addr;
1950	$LINK_MAP->insert ($exit->clone, 19, 21);	4470	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
1951	$LINK_MAP->insert ($exit->clone, 20, 19);	4471	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
1952	$LINK_MAP->insert ($exit->clone, 20, 21);	4472	or die "addr2line: $!";
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956		4473
1957	$exit->destroy;	4474	my @funcs;
		4475	my @res = <$fh>;
		4476	chomp for @res;
		4477	while (@res) {
		4478	my ($func, $line) = splice @res, 0, 2, ();
		4479	push @funcs, "[$func] $line";
		4480	}
		4481
		4482	@funcs
		4483	};
		4484
		4485	LOG llevInfo, "[ABT] $perl_bt\n";
		4486	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4487	LOG llevInfo, "[ABT] $_\n" for @bt;
		4488	--$_log_backtrace;
1958	});	4489	};
1959		4490	} else {
1960	$LINK_MAP->{deny_save} = 1;	4491	LOG llevInfo, "[ABT] $msg\n";
1961	$LINK_MAP->{deny_reset} = 1;	4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {
1969	my ($who, $arg) = @_;
1970
1971	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");
1975	}
1976	};
1977
1978	unshift @INC, $LIBDIR;
1979
1980	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,
1982	prio => 0,
1983	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,
1985	cb => sub {
1986	unless ($FREEZE) {
1987	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;
1992
1993	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995
1996	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;
1998	},	4493	}
1999	);	4494	}
2000		4495
2001	IO::AIO::max_poll_time $TICK * 0.2;	4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
2002		4499
2003	Event->io (	4500	END { cf::emergency_save }
2004	fd => IO::AIO::poll_fileno,
2005	poll => 'r',
2006	prio => 5,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,
2013	after => 0,
2014	interval => 10,
2015	cb => sub {
2016	(Coro::unblock_sub {
2017	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},
2021	);
2022		4501
2023	1	4502	1
2024		4503

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