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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.612 by root, Wed Nov 21 12:47:09 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
25	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		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" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		83
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		85
36	our %COMMAND = ();	86	our %COMMAND = ();
37	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
38		88
39	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
43		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	98	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
46		101
47	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
48	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
49	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;
50	our $NOW;	144	our $NOW;
51		145
52	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
53		147	our (%MAP, %MAP_LOADING ); # all maps
54	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;
56
57	our %PLAYER; # all users
58	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		149
65	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
68	binmode STDOUT;	166	binmode STDOUT;
69	binmode STDERR;	167	binmode STDERR;
70		168
71	# read virtual server time, if available	169	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
76	}	174	}
77		175
78	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	177
80	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		180
84	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
85		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
86	#############################################################################	189	#############################################################################
87		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
88	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
89		203
90	=over 4	204	=over 4
91		205
92	=item $cf::UPTIME	206	=item $cf::UPTIME
93		207
94	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.
95		224
96	=item $cf::RUNTIME	225	=item $cf::RUNTIME
97		226
98	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
99	every server tick.	228	every server tick.
100		229
101	=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
102		233
103	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		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
106	=item $cf::NOW	245	=item $cf::LOAD
107		246
108	The time of the last (current) server tick.	247	The raw value load value from the last tick.
109
110	=item $cf::TICK
111
112	The interval between server ticks, in seconds.
113		248
114	=item %cf::CFG	249	=item %cf::CFG
115		250
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	252	from wherever your confdir points to.
118		253
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		255
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
123	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
124	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
125		289
126	=back	290	=back
127		291
128	=cut	292	=cut
129		293
130	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
131	*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 {
132	my $msg = join "", @_;	301	my $msg = join "", @_;
133	utf8::encode $msg;
134		302
135	$msg .= "\n"	303	$msg .= "\n"
136	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
137		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
138	LOG llevError, $msg;	308	LOG llevWarn, $msg;
139	};	309	};
140	}	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	};
141		324
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@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';
147	@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)
148		332
149	# 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
150	# within the Safe compartment.	334	# within the Safe compartment.
151	for my $pkg (qw(	335	for my $pkg (qw(
152	cf::global cf::attachable	336	cf::global cf::attachable
153	cf::object cf::object::player	337	cf::object cf::object::player
154	cf::client cf::player	338	cf::client cf::player
155	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
156	cf::map cf::party cf::region	341	cf::party cf::region
157	)) {	342	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	344	}
161		345
162	$Event::DIED = sub {	346	$EV::DIED = sub {
163	warn "error in event callback: @_";	347	warn "error in event callback: $@";
164	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
165		356
166	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
167		358
168	=over 4	359	=over 4
169		360
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	380	$d
190	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
191	}	382	}
192		383
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
194		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
195	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
196		437
197	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
198		439
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
207		441
208	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
209		443
210	=cut	444	=cut
211		445
212	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
214	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
215	}	511	}
216		512
217	=item cf::lock_wait $string	513	=item cf::lock_wait $string
218		514
219	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
220		516
221	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
222		518
223	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
226	returned.	522	returned.
227		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
228	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
230		529
231	=cut	530	=item $locked = cf::lock_active $string
232		531
233	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
234		537
235	sub lock_wait($) {	538	sub lock_wait($) {
236	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	540	}
244		541
245	sub lock_acquire($) {	542	sub lock_acquire($) {
246	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
247		545
248	# wait, to be sure we are not locked	546	sub lock_active($) {
249	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	548	}
258		549
259	sub freeze_mainloop {	550	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
261		552
262	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	554	}
264	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
265	}	639	}
266		640
267	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
268		642
269	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		648
275	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
276		650
277	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
278		652
279	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
282		657
283	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
286	fast or be very important.	661	fast or be very important.
…		…
288	=cut	663	=cut
289		664
290	sub sync_job(&) {	665	sub sync_job(&) {
291	my ($job) = @_;	666	my ($job) = @_;
292		667
293	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
294	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
296		673
297	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	675
299	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
300		677
301	my $busy = 1;	678	my $busy = 1;
302	my @res;	679	my @res;
303		680
304	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	683	@res = eval { $job->() };
306	warn $@ if $@;	684	error $@ if $@;
307	undef $busy;	685	undef $busy;
308	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
309		687
310	while ($busy) {	688	while ($busy) {
311	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
312	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
313		699
314	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
315	} else {	701	} else {
316	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
317		703
…		…
337	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
338		724
339	$coro	725	$coro
340	}	726	}
341		727
342	sub write_runtime {	728	=item fork_call { }, @args
343	return unless $TICK_WATCHER->is_active;
344		729
345	my $runtime = cf::localdir . "/runtime";	730	Executes the given code block with the given arguments in a seperate
		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.
346		734
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
348	or return;
349		736
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	737	sub post_fork {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	738	reset_signals;
352	and return;	739	}
353		740
354	aio_fsync $fh	741	sub fork_call(&@) {
355	and return;	742	my ($cb, @args) = @_;
356		743
357	close $fh	744	my @res = Coro::Util::fork_eval {
358	or return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
359		748
360	aio_rename "$runtime~", $runtime	749	wantarray ? @res : $res[-1]
361	and return;	750	}
362		751
		752	sub objinfo {
363	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 });
364	}	927	}
365		928
366	=back	929	=back
367		930
368	=cut	931	=cut
369		932
370	#############################################################################	933	#############################################################################
371		934
372	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
373		936
374	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
375	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")
376	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
377		940
378	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>
379	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
380	crossfire+).	943	Deliantra).
381		944
382	=over 4	945	=over 4
383		946
384	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
385		948
…		…
429	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
430		993
431	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
433		996
434	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
435	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.
436		999
437	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
438		1001
439	=over 4	1002	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	1063	our @CB_MAP = ();
501		1064
502	my %attachment;	1065	my %attachment;
503		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
504	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
506		1075
507	use sort 'stable';	1076	use sort 'stable';
508		1077
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
543		1112
544	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		1117
549	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
551		1120
552	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
557		1126
558	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
559	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
560		1129
561	} elsif (ref $type) {	1130	} elsif (ref $type) {
562	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
563		1132
564	} else {	1133	} else {
565	shift @arg;	1134	shift @arg;
566	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
567	}	1136	}
568	}	1137	}
569	}	1138	}
570		1139
571	sub _object_attach {	1140	sub _object_attach {
…		…
581	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
582	}	1151	}
583		1152
584	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
585	} else {	1154	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
587	}	1156	}
588		1157
589	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
590	}	1159	}
591		1160
…		…
593	if (ref $_[0]) {	1162	if (ref $_[0]) {
594	_object_attach @_;	1163	_object_attach @_;
595	} else {	1164	} else {
596	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
597	}	1166	}
		1167	_recalc_want;
598	};	1168	};
599		1169
600	# all those should be optimised	1170	# all those should be optimised
601	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
606	reattach ($obj);	1176	reattach ($obj);
607	} else {	1177	} else {
608	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
609	}	1179	}
		1180	_recalc_want;
610	};	1181	};
611		1182
612	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
614		1185
…		…
629	";	1200	";
630	die if $@;	1201	die if $@;
631	}	1202	}
632		1203
633	our $override;	1204	our $override;
634	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?
635		1206
636	sub override {	1207	sub override {
637	$override = 1;	1208	$override = 1;
638	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
639	}	1210	}
640		1211
641	sub do_invoke {	1212	sub do_invoke {
642	my $event = shift;	1213	my $event = shift;
643	my $callbacks = shift;	1214	my $callbacks = shift;
644		1215
645	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
646		1217
647	local $override;	1218	local $override;
648		1219
649	for (@$callbacks) {	1220	for (@$callbacks) {
650	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
651		1222
652	if ($@) {	1223	if ($@) {
653	warn "$@";
654	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
655	override;	1225	override;
656	}	1226	}
657		1227
658	return 1 if $override;	1228	return 1 if $override;
659	}	1229	}
660		1230
661	0	1231	0
662	}	1232	}
663		1233
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1235
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1237
668	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
669		1239
670	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
671	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
672	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1243
674	=back	1244	=back
675		1245
676	=cut	1246	=cut
677		1247
678	#############################################################################	1248	#############################################################################
679	# 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	}
680		1292
681	sub reattach {	1293	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
683	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
684		1299
685	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
686		1301
687	@$registry = ();	1302	@$registry = ();
688		1303
…		…
693	for (@$attach) {	1308	for (@$attach) {
694	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
695	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
696	}	1311	}
697	} else {	1312	} else {
698	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
699	}	1314	}
700	}	1315	}
701	}	1316	}
702		1317
703	cf::attachable->attach (	1318	cf::attachable->attach (
704	prio => -1000000,	1319	prio => -1000000,
705	on_instantiate => sub {	1320	on_instantiate => sub {
706	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
707		1322
708	$data = from_json $data;	1323	$data = decode_json $data;
709		1324
710	for (@$data) {	1325	for (@$data) {
711	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
712		1327
713	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1344	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
731		1346
732	sync_job {	1347	sync_job {
733	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
736		1353
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$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;
740	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
741	close $fh;	1361	aio_close $fh;
742		1362
743	if (@$objs) {	1363	if (@$objs) {
744	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) {
745	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	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;
748	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
749	close $fh;	1372	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
751	}	1374	}
752	} else {	1375	} else {
753	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
754	}	1377	}
755		1378
756	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1383	} else {
758	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
759	}	1385	}
760	} else {	1386	} else {
761	aio_unlink $filename;	1387	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
763	}	1389	}
764	}	1390	};
765	}	1391	}
766		1392
767	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
769		1395
…		…
781	or return;	1407	or return;
782		1408
783	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
785	or return;	1411	or return;
		1412
786	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
787	}	1415	}
788		1416
		1417	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
791	return ($data, $av);	1422	($data, $av)
792	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
793		1430
794	#############################################################################	1431	#############################################################################
795	# command handling &c	1432	# command handling &c
796		1433
797	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
798		1435
799	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
800	$name.	1437	$name.
801		1438
802	=cut	1439	=cut
…		…
808	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
809		1446
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1448	}
812		1449
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
814		1451
815	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.
816		1457
817	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
818	called.
819		1459
820	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
821		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
822	sub register_extcmd {	1482	sub register_extcmd($$) {
823	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
824		1484
825	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
826	}	1486	}
827		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 ();
		1507
828	cf::player->attach (	1508	cf::player->attach (
829	on_command => sub {	1509	on_unknown_command => sub {
830	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
831		1511
832	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
833	or return;	1513	or return;
834		1514
…		…
839	cf::override;	1519	cf::override;
840	},	1520	},
841	on_extcmd => sub {	1521	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
843		1523
844	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1525
846	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
849	$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);
850	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
851	}	1547	}
		1548
852	} else {	1549	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1551	}
855		1552
856	cf::override;	1553	cf::override;
857	},	1554	},
858	);	1555	);
859		1556
		1557	# "readahead" all extensions
860	sub load_extension {	1558	sub cache_extensions {
861	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
862		1560
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1564	}
888	die $@;
889	}	1565	};
890		1566
891	push @EXTS, $pkg;	1567	$grp
		1568	}
		1569
		1570	sub _ext_cfg_reg($$$$) {
		1571	my ($rvar, $varname, $cfgname, $default) = @_;
		1572
		1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
892	}	1579	}
893		1580
894	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
895	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1590	next unless -r $path;
897	eval {	1591
898	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 $active;
		1663	}
899	1	1664	}
900	} or warn "$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	}
901	}	1677	};
902	}	1678	}
903		1679
904	#############################################################################	1680	#############################################################################
905		1681
		1682	=back
		1683
906	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
907		1685
908	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
909		1687
910	=cut	1688	=cut
911		1689
912	package cf::player;	1690	package cf::player;
913		1691
…		…
915		1693
916	=head3 cf::player	1694	=head3 cf::player
917		1695
918	=over 4	1696	=over 4
919		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
920	=item cf::player::find $login	1712	=item cf::player::find $login
921		1713
922	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
923		1715
924	=cut	1716	=cut
925		1717
926	sub playerdir($) {	1718	sub playerdir($) {
927	cf::localdir	1719	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1721	}
933		1722
934	sub path($) {	1723	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1725
937	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
938	}	1727	}
939		1728
940	sub find_active($) {	1729	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
945		1734
946	sub exists($) {	1735	sub exists($) {
947	my ($login) = @_;	1736	my ($login) = @_;
948		1737
949	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1739	or !aio_stat path $login
951	}	1740	}
952		1741
953	sub find($) {	1742	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1744	my $login = $_[0];
956		1745
957	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
958		1747
959	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	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
961	or return;	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;
962	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
963	}	1765	}
964	}	1766	}
965	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($pl, $path) = @_;
		1772
		1773	# restore slots saved in save, below
		1774	my $slots = delete $pl->{_slots};
		1775
		1776	$pl->ob->current_weapon ($slots->[0]);
		1777	$pl->combat_ob ($slots->[1]);
		1778	$pl->ranged_ob ($slots->[2]);
		1779	},
		1780	);
966		1781
967	sub save($) {	1782	sub save($) {
968	my ($pl) = @_;	1783	my ($pl) = @_;
969		1784
970	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
975	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
976		1791
977	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
979		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
980	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
981	Coro::cede;	1801	cf::cede_to_tick;
982	}	1802	}
983		1803
984	sub new($) {	1804	sub new($) {
985	my ($login) = @_;	1805	my ($login) = @_;
986		1806
…		…
992	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
993		1813
994	$self	1814	$self
995	}	1815	}
996		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
997	=item $pl->quit_character	1827	=item $pl->quit_character
998		1828
999	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1001		1831
1002	=cut	1832	=cut
1003		1833
1004	sub quit_character {	1834	sub quit_character {
1005	my ($pl) = @_;	1835	my ($pl) = @_;
1006		1836
		1837	my $name = $pl->ob->name;
		1838
1007	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1841
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1011	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1013	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1014		1850
1015	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	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
1020	IO::AIO::aio_rmtree $temp;	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;
1021	}	1877	}
1022		1878
1023	=item cf::player::list_logins	1879	=item cf::player::list_logins
1024		1880
1025	Returns am arrayref of all valid playernames in the system, can take a	1881	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1027		1883
1028	=cut	1884	=cut
1029		1885
1030	sub list_logins {	1886	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1888	or return [];
1033		1889
1034	my @logins;	1890	my @logins;
1035		1891
1036	for my $login (@$dirs) {	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") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1040		1902
1041	utf8::decode $login;	1903	utf8::decode $login;
1042	push @logins, $login;	1904	push @logins, $login;
1043	}	1905	}
1044		1906
1045	\@logins	1907	\@logins
1046	}	1908	}
1047		1909
1048	=item $player->maps	1910	=item $player->maps
1049		1911
		1912	=item cf::player::maps $login
		1913
1050	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1051	player. May block.	1915	player. May block.
1052		1916
1053	=cut	1917	=cut
1054		1918
1055	sub maps($) {	1919	sub maps($) {
1056	my ($pl) = @_;	1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1923
1058	my $files = aio_readdir playerdir $pl	1924	my $files = aio_readdir playerdir $pl
1059	or return;	1925	or return;
1060		1926
1061	my @paths;	1927	my @paths;
…		…
1063	for (@$files) {	1929	for (@$files) {
1064	utf8::decode $_;	1930	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1931	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1932	next unless /^$PATH_SEP/o;
1067		1933
1068	s/\.map$//;	1934	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1935	}
1071		1936
1072	\@paths	1937	\@paths
1073	}	1938	}
1074		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1076		1945
1077	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1078		1947
1079	=cut	1948	=cut
1080		1949
1081	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1082	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1083		1952
1084	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1954	}
1088		1955
1089	package cf;	1956	=head3 cf::region
		1957
		1958	=over 4
		1959
		1960	=cut
		1961
		1962	package cf::region;
		1963
		1964	=item cf::region::find_by_path $path
		1965
		1966	Tries to decuce the likely region for a map knowing only its path.
		1967
		1968	=cut
		1969
		1970	sub find_by_path($) {
		1971	my ($path) = @_;
		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
		1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
		1985	}
1090		1986
1091	=back	1987	=back
1092
1093		1988
1094	=head3 cf::map	1989	=head3 cf::map
1095		1990
1096	=over 4	1991	=over 4
1097		1992
…		…
1101		1996
1102	use Fcntl;	1997	use Fcntl;
1103	use Coro::AIO;	1998	use Coro::AIO;
1104		1999
1105	use overload	2000	use overload
1106	'""' => \&as_string;	2001	'""' => \&as_string,
		2002	fallback => 1;
1107		2003
1108	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1110		2006
1111	sub generate_random_map {	2007	sub generate_random_map {
1112	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1113		2009
1114	# mit "rum" bekleckern, nicht	2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1115	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1119	$rmp->{exit_on_final_map},
1120	$rmp->{xsize}, $rmp->{ysize},
1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1123	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1124	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)
1128	}	2013	}
		2014
		2015	=item cf::map->register ($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
1129		2022
1130	sub register {	2023	sub register {
1131	my (undef, $regex) = @_;	2024	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	2025	my $pkg = caller;
1133		2026
1134	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		2028
1137	$EXT_MAP{$pkg} = qr<$regex>;	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	2030	}
1139		2031
1140	# also paths starting with '/'	2032	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	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	}
1142		2044
1143	sub normalise {	2045	sub normalise {
1144	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
		2047
		2048	$path = "$path"; # make sure it's a string
		2049
		2050	$path =~ s/\.map$//;
1145		2051
1146	# map plan:	2052	# map plan:
1147	#	2053	#
1148	# /! non-realised random map exit (special hack!)	2054	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	2055	# {... are special paths that are not being touched
…		…
1162	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1163	$path = "$base/$path";	2069	$path = "$base/$path";
1164	}	2070	}
1165		2071
1166	for ($path) {	2072	for ($path) {
1167	redo if s{//}{/};
1168	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1169	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1170	}	2075	}
1171		2076
1172	$path	2077	$path
…		…
1177		2082
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		2084
1180	$path = normalise $path, $base;	2085	$path = normalise $path, $base;
1181		2086
1182	for my $pkg (keys %EXT_MAP) {	2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	2089	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	2090	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1187	return $self;	2092	return $self;
1188	}	2093	}
1189	}	2094	}
1190		2095
1191	Carp::carp "unable to resolve path '$path'.";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1192	()	2097	()
1193	}	2098	}
1194		2099
		2100	# may re-bless or do other evil things
1195	sub init {	2101	sub init {
1196	my ($self) = @_;	2102	my ($self) = @_;
1197		2103
1198	$self	2104	$self
1199	}	2105	}
…		…
1211		2117
1212	# the original (read-only) location	2118	# the original (read-only) location
1213	sub load_path {	2119	sub load_path {
1214	my ($self) = @_;	2120	my ($self) = @_;
1215		2121
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1217	}	2123	}
1218		2124
1219	# the temporary/swap location	2125	# the temporary/swap location
1220	sub save_path {	2126	sub save_path {
1221	my ($self) = @_;	2127	my ($self) = @_;
1222		2128
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1225	}	2131	}
1226		2132
1227	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1228	sub uniq_path {	2134	sub uniq_path {
1229	my ($self) = @_;	2135	my ($self) = @_;
1230		2136
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1233	}	2139	}
1234		2140
1235	# and all this just because we cannot iterate over	2141	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	2142	my ($self) = @_;
1239		2143
1240	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1242	}	2147	}
1243		2148
1244	sub unlink_save {	2149	sub unlink_save {
1245	my ($self) = @_;	2150	my ($self) = @_;
1246		2151
1247	utf8::encode (my $save = $self->save_path);	2152	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	2155	}
1251		2156
1252	sub load_header_from($) {	2157	sub load_header_from($) {
1253	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1254		2159
1255	utf8::encode $path;	2160	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1257	or return;	2162	or return;
1258		2163
1259	$self->_load_header ($path)	2164	$self->_load_header ($f)
1260	or return;	2165	or return;
1261		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1262	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1263		2171
1264	1	2172	1
1265	}	2173	}
1266		2174
		2175	# used to laod the header of an original map
1267	sub load_orig {	2176	sub load_header_orig {
1268	my ($self) = @_;	2177	my ($self) = @_;
1269		2178
1270	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1271	}	2180	}
1272		2181
		2182	# used to laod the header of an instantiated map
1273	sub load_temp {	2183	sub load_header_temp {
1274	my ($self) = @_;	2184	my ($self) = @_;
1275		2185
1276	$self->load_header_from ($self->save_path)	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	$self->instantiate;
1277	}	2208	}
1278		2209
1279	sub load_header {	2210	sub load_header {
1280	my ($self) = @_;	2211	my ($self) = @_;
1281		2212
1282	if ($self->load_temp) {	2213	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	2214	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	2215	} else {
1289	$self->load_orig	2216	$self->load_header_orig
1290	or return;	2217	or return;
1291		2218	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	2219	}
		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
		2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
1297		2226
1298	1	2227	1
1299	}	2228	}
1300		2229
1301	sub find;	2230	sub find;
1302	sub find {	2231	sub find {
1303	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1304		2233
		2234	cf::cede_to_tick;
		2235
1305	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1306		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1308		2240
1309	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1312	or return;	2243	or return;
1313		2244
1314	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1315		2246
1316	$map->load_header	2247	$map->load_header
1317	or return;	2248	or return;
1318		2249
1319	if ($map->should_reset) {	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1320	$map->reset;	2255	$map->reset;
1321	undef $guard;
1322	$map = find $path	2256	return find $path;
1323	or return;
1324	}	2257	}
1325		2258
1326	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1327	}	2260	}
1328	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1329		2265
1330	sub load {	2266	sub load {
1331	my ($self) = @_;	2267	my ($self) = @_;
1332		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
1333	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1335		2275
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1337		2278
1338	$self->in_memory (cf::MAP_LOADING);
1339
1340	$self->alloc;	2279	$self->alloc;
1341	$self->_load_objects ($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)
1342	or return;	2288	or return;
1343		2289
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1345	if delete $self->{load_original};	2291	if delete $self->{load_original};
1346		2292
1347	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2294	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2297	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1352	}	2302	}
1353	}
1354		2303
1355	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1356		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1357	# now do the right thing for maps	2313	# now do the right thing for maps
1358	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2316	unless $self->difficulty;
1368	Coro::cede;	2317	cf::cede_to_tick;
1369	$self->activate;	2318
		2319	unless ($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
1370	}	2333	1
1371
1372	$self->in_memory (cf::MAP_IN_MEMORY);
1373	}	2334	}
1374		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1375	sub customise_for {	2339	sub customise_for {
1376	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1377		2341
1378	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2343	if $self->per_player;
1380		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1381	$self	2348	$self
1382	}
1383
1384	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {
1386	my ($map) = @_;
1387
1388	my @diag; # diagonal neighbours
1389
1390	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)
1392	or next;
1393	$neigh = find $neigh, $map
1394	or next;
1395	$neigh->load;
1396
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}
1400
1401	for (@diag) {
1402	my $neigh = find @$_
1403	or next;
1404	$neigh->load;
1405	}
1406	}	2349	}
1407		2350
1408	sub find_sync {	2351	sub find_sync {
1409	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1410		2353
1411	cf::sync_job { find $path, $origin }	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
1412	}	2359	}
1413		2360
1414	sub do_load_sync {	2361	sub do_load_sync {
1415	my ($map) = @_;	2362	my ($map) = @_;
1416		2363
1417	cf::sync_job { $map->load };	2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
1418	}	2369	}
1419		2370
1420	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2372	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2373
1434	sub find_async {	2374	sub find_async {
1435	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1436		2376
1437	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1438		2378
1439	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	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;
1441	}	2398	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2399	$MAP_PREFETCHER->prio (6);
1445		2400
1446	()	2401	()
1447	}	2402	}
1448		2403
		2404	# common code, used by both ->save and ->swapout
1449	sub save {	2405	sub _save {
1450	my ($self) = @_;	2406	my ($self) = @_;
1451
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;
1453		2407
1454	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1455		2409
1456	return unless $self->dirty;	2410	return unless $self->dirty;
1457		2411
…		…
1463	return if $self->{deny_save};	2417	return if $self->{deny_save};
1464		2418
1465	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1466		2420
1467	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1469	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1470		2427
1471	if ($uniq) {	2428	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2431	} else {
1475	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1476	}	2433	}
1477	}	2434	}
1478		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1479	sub swap_out {	2444	sub swap_out {
1480	my ($self) = @_;	2445	my ($self) = @_;
1481		2446
1482	# save first because save cedes
1483	$self->save;
1484
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1487	return if $self->players;	2451	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;
1489	return if $self->{deny_save};
1490		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
1491	$self->clear;	2462	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2463	}
1494		2464
1495	sub reset_at {	2465	sub reset_at {
1496	my ($self) = @_;	2466	my ($self) = @_;
1497		2467
1498	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1501		2470
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2473
…		…
1509	my ($self) = @_;	2478	my ($self) = @_;
1510		2479
1511	$self->reset_at <= $cf::RUNTIME	2480	$self->reset_at <= $cf::RUNTIME
1512	}	2481	}
1513		2482
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2483	sub reset {
1529	my ($self) = @_;	2484	my ($self) = @_;
1530		2485
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2487
1533	return if $self->players;	2488	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2489
1536	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
		2491
		2492	$self->state (cf::MAP_SWAPPED);
		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
1537		2501
1538	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1539		2503
1540	$self->in_memory (cf::MAP_SWAPPED);	2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2506	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2507
1545	$self->unlink_save;	2508	$self->unlink_save;
1546	$self->destroy;	2509	$self->destroy;
1547	}	2510	}
1548		2511
1549	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1550		2513
1551	sub nuke {	2514	sub nuke {
1552	my ($self) = @_;	2515	my ($self) = @_;
1553		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
		2520	delete $cf::MAP{$self->path};
		2521
		2522	$self->unlink_save;
		2523
		2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
1557	$self->reset; # polite request, might not happen	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	]
1558	}	2570	}
1559		2571
1560	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1561		2573
1562	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2575	instantiated unique items. May block.
1564		2576
1565	=cut	2577	=cut
1566		2578
1567	sub unique_maps() {	2579	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1569	or return;	2581	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2582	utf8::decode $_;
1575	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
1577		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) {
1578	s/\.map$//;	2612	s/\.map$// or next;
1579	push @paths, $_;	2613	utf8::decode $_;
1580	}	2614	push @maps, "$dir/$_";
		2615	}
1581		2616
1582	\@paths	2617	push @dirs, map "$dir/$_", @$dirs;
1583	}	2618	}
1584		2619
1585	package cf;	2620	\@maps
		2621	}
1586		2622
1587	=back	2623	=back
1588		2624
1589	=head3 cf::object	2625	=head3 cf::object
1590		2626
…		…
1594		2630
1595	=over 4	2631	=over 4
1596		2632
1597	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1598		2634
1599	Returns the inventory of the object _and_ their inventories, recursively.	2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
1600		2637
1601	=cut	2638	=cut
1602		2639
1603	sub inv_recursive_;	2640	sub inv_recursive_;
1604	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1607		2644
1608	sub inv_recursive {	2645	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1610	}	2647	}
1611		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
1612	package cf;	2677	package cf;
1613		2678
1614	=back	2679	=back
1615		2680
1616	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1622	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>
1623	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
1624	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1625		2690
1626	=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	};
1627		2706
1628	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2708	# with dialog boxes.
1630	#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
1631	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1633		2712
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2714
1636	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1638	} 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 {
1639	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1641	}	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 (@_);
1642	}	2740	}
1643		2741
1644	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1645		2743
1646	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1659		2757
1660	=item $player_object->enter_link	2758	=item $player_object->enter_link
1661		2759
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2760	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2761
1664	The player should be reasonably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2763	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2764	though, as the player cannot control the character while it is on the link
		2765	map.
1666		2766
1667	Will never block.	2767	Will never block.
1668		2768
1669	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1670		2770
…		…
1678	=cut	2778	=cut
1679		2779
1680	sub link_map {	2780	sub link_map {
1681	unless ($LINK_MAP) {	2781	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2782	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2783	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2784	$LINK_MAP->load;
1685	}	2785	}
1686		2786
1687	$LINK_MAP	2787	$LINK_MAP
1688	}	2788	}
…		…
1690	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1691	my ($self) = @_;	2791	my ($self) = @_;
1692		2792
1693	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1694		2794
		2795	++$self->{_link_recursion};
		2796
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2798
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1699		2801
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1701	}	2803	}
1702		2804
1703	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1705		2809
1706	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1707		2811
1708	unless ($map) {	2812	unless ($map) {
1709	# restore original map position	2813	# restore original map position
…		…
1720	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1721	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1722		2826
1723	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1726		2830
1727	$map->load;	2831	$map->load;
1728	$map->load_diag;
1729		2832
1730	return unless $self->contr->active;	2833	return unless $self->contr->active;
		2834
		2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2836	if ($self->enter_map ($map, $x, $y)) {
		2837	# entering was successful
		2838	delete $self->{_link_recursion};
		2839	# only activate afterwards, to support waiting in hooks
1731	$self->activate_recursive;	2840	$self->activate_recursive;
1732	$self->enter_map ($map, $x, $y);
1733	}
1734
1735	cf::player->attach (
1736	on_logout => sub {
1737	my ($pl) = @_;
1738
1739	# abort map switching before logout
1740	if ($pl->ob->{_link_pos}) {
1741	cf::sync_job {
1742	$pl->ob->leave_link
1743	};
1744	}
1745	},	2841	}
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2842
1749	# try to abort aborted map switching on player login :)	2843	}
1750	# should happen only on crashes
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2844
1767	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1768		2846
		2847	Moves the player to the given map-path and coordinates by first freezing
		2848	her, loading and preparing them map, calling the provided $check callback
		2849	that has to return the map if sucecssful, and then unfreezes the player on
		2850	the new (success) or old (failed) map position. In either case, $done will
		2851	be called at the end of this process.
		2852
		2853	Note that $check will be called with a potentially non-loaded map, so if
		2854	it needs a loaded map it has to call C<< ->load >>.
		2855
1769	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1770		2859
1771	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2861	my ($self, $path, $x, $y, $check, $done) = @_;
		2862
		2863	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2864	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2865	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2866	($path, $x, $y) = @$EMERGENCY_POSITION;
		2867	}
		2868
		2869	# do generation counting so two concurrent goto's will be executed in-order
		2870	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2871
1774	$self->enter_link;	2872	$self->enter_link;
1775		2873
1776	(async {	2874	(async {
1777	my $map = cf::map::find $path;	2875	$Coro::current->{desc} = "player::goto $path $x $y";
		2876
		2877	# *tag paths override both path and x|y
		2878	if ($path =~ /^\*(.*)$/) {
		2879	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2880	my $ob = $obs[rand @obs];
		2881
		2882	# see if we actually can go there
		2883	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2884	$ob = $obs[rand @obs];
		2885	} else {
		2886	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888	# else put us there anyways for now #d#
		2889
		2890	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2891	} else {
		2892	($path, $x, $y) = (undef, undef, undef);
		2893	}
		2894	}
		2895
		2896	my $map = eval {
		2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
1779		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2902	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
1784		2905
		2906	$map
		2907	};
		2908
		2909	if ($@) {
		2910	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2911	LOG llevError | logBacktrace, Carp::longmess $@;
		2912	}
		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1786	})->prio (1);	2920	})->prio (1);
1787	}	2921	}
1788		2922
1789	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1790		2924
…		…
1792		2926
1793	sub parse_random_map_params {	2927	sub parse_random_map_params {
1794	my ($spec) = @_;	2928	my ($spec) = @_;
1795		2929
1796	my $rmp = { # defaults	2930	my $rmp = { # defaults
1797	xsize => 10,	2931	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2932	ysize => (cf::rndm 15, 40),
		2933	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2934	#layout => string,
1799	};	2935	};
1800		2936
1801	for (split /\n/, $spec) {	2937	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2938	my ($k, $v) = split /\s+/, $_, 2;
1803		2939
…		…
1815	# that depends on the exit object	2951	# that depends on the exit object
1816		2952
1817	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
1818		2954
1819	if ($exit->map) {	2955	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2956	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1824	}	2962	}
1825		2963
1826	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1827		2965
1828	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
		2968	my $meta = "$RANDOMDIR/$md5.meta";
1830		2969
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
		2972	undef $fh;
		2973	aio_rename "$meta~", $meta;
1833		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
1836	}	2981	}
1837	}	2982	}
1838		2983
1839	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
1843		2988
1844	$self->enter_link;	2989	$self->enter_link;
1845		2990
1846	(async {	2991	(async {
1847	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
1848	unless (eval {	2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
		2996
		2997	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2998	my $x = $exit->stats->hp;
		2999	my $y = $exit->stats->sp;
		3000
		3001	# special map handling
		3002	my $slaying = $exit->slaying;
		3003
		3004	# special map handling
		3005	if ($slaying eq "/!") {
		3006	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3007
1849	prepare_random_map $exit	3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
1850	if $exit->slaying eq "/!";	3011	$map = $exit->slaying;
1851		3012
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	3013	} elsif ($slaying eq '!up') {
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
1854		3017
		3018	} elsif ($slaying eq '!down') {
		3019	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3020	$x = $exit->x;
		3021	$y = $exit->y;
		3022	}
		3023
		3024	$self->goto ($map, $x, $y);
		3025
		3026	# if exit is damned, update players death & WoR home-position
		3027	$self->contr->savebed ($map, $x, $y)
		3028	if $exit->flag (cf::FLAG_DAMNED);
		3029
1855	1;	3030	1
1856	}) {	3031	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	3033	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
1861		3036
1862	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
1863	$self->leave_link;	3038	$self->leave_link;
1864	}	3039	}
1865	})->prio (1);	3040	})->prio (1);
1866	}	3041	}
1867		3042
1868	=head3 cf::client	3043	=head3 cf::client
1869		3044
1870	=over 4	3045	=over 4
1871		3046
1872	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1873		3048
1874	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1875	should not be used under normal circumstances.	3050	them as required.
1876		3051
1877	=cut	3052	=cut
1878		3053
		3054	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3055
		3056	sub cf::client::send_big_packet {
		3057	my ($self, $pkt) = @_;
		3058
		3059	# try lzf for large packets
		3060	$pkt = "lzf " . Compress::LZF::compress $pkt
		3061	if 1024 <= length $pkt and $self->{can_lzf};
		3062
		3063	# split very large packets
		3064	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3065	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3066	$pkt = "frag";
		3067	}
		3068
		3069	$self->send_packet ($pkt);
		3070	}
		3071
		3072	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3073
		3074	Send a msg packet to the client, formatting the msg for the client if
		3075	necessary. C<$type> should be a string identifying the type of the
		3076	message, with C<log> being the default. If C<$color> is negative, suppress
		3077	the message unless the client supports the msg packet.
		3078
		3079	=cut
		3080
		3081	# non-persistent channels (usually the info channel)
		3082	our %CHANNEL = (
		3083	"c/motd" => {
		3084	id => "infobox",
		3085	title => "MOTD",
		3086	reply => undef,
		3087	tooltip => "The message of the day",
		3088	},
		3089	"c/identify" => {
		3090	id => "infobox",
		3091	title => "Identify",
		3092	reply => undef,
		3093	tooltip => "Items recently identified",
		3094	},
		3095	"c/examine" => {
		3096	id => "infobox",
		3097	title => "Examine",
		3098	reply => undef,
		3099	tooltip => "Signs and other items you examined",
		3100	},
		3101	"c/shopinfo" => {
		3102	id => "infobox",
		3103	title => "Shop Info",
		3104	reply => undef,
		3105	tooltip => "What your bargaining skill tells you about the shop",
		3106	},
		3107	"c/book" => {
		3108	id => "infobox",
		3109	title => "Book",
		3110	reply => undef,
		3111	tooltip => "The contents of a note or book",
		3112	},
		3113	"c/lookat" => {
		3114	id => "infobox",
		3115	title => "Look",
		3116	reply => undef,
		3117	tooltip => "What you saw there",
		3118	},
		3119	"c/who" => {
		3120	id => "infobox",
		3121	title => "Players",
		3122	reply => undef,
		3123	tooltip => "Shows players who are currently online",
		3124	},
		3125	"c/body" => {
		3126	id => "infobox",
		3127	title => "Body Parts",
		3128	reply => undef,
		3129	tooltip => "Shows which body parts you posess and are available",
		3130	},
		3131	"c/statistics" => {
		3132	id => "infobox",
		3133	title => "Statistics",
		3134	reply => undef,
		3135	tooltip => "Shows your primary statistics",
		3136	},
		3137	"c/skills" => {
		3138	id => "infobox",
		3139	title => "Skills",
		3140	reply => undef,
		3141	tooltip => "Shows your experience per skill and item power",
		3142	},
		3143	"c/shopitems" => {
		3144	id => "infobox",
		3145	title => "Shop Items",
		3146	reply => undef,
		3147	tooltip => "Shows the items currently for sale in this shop",
		3148	},
		3149	"c/resistances" => {
		3150	id => "infobox",
		3151	title => "Resistances",
		3152	reply => undef,
		3153	tooltip => "Shows your resistances",
		3154	},
		3155	"c/pets" => {
		3156	id => "infobox",
		3157	title => "Pets",
		3158	reply => undef,
		3159	tooltip => "Shows information abotu your pets/a specific pet",
		3160	},
		3161	"c/perceiveself" => {
		3162	id => "infobox",
		3163	title => "Perceive Self",
		3164	reply => undef,
		3165	tooltip => "You gained detailed knowledge about yourself",
		3166	},
		3167	"c/uptime" => {
		3168	id => "infobox",
		3169	title => "Uptime",
		3170	reply => undef,
		3171	tooltip => "How long the server has been running since last restart",
		3172	},
		3173	"c/mapinfo" => {
		3174	id => "infobox",
		3175	title => "Map Info",
		3176	reply => undef,
		3177	tooltip => "Information related to the maps",
		3178	},
		3179	"c/party" => {
		3180	id => "party",
		3181	title => "Party",
		3182	reply => "gsay ",
		3183	tooltip => "Messages and chat related to your party",
		3184	},
		3185	"c/death" => {
		3186	id => "death",
		3187	title => "Death",
		3188	reply => undef,
		3189	tooltip => "Reason for and more info about your most recent death",
		3190	},
		3191	"c/fatal" => {
		3192	id => "fatal",
		3193	title => "Fatal Error",
		3194	reply => undef,
		3195	tooltip => "Reason for the server disconnect",
		3196	},
		3197	"c/say" => $SAY_CHANNEL,
		3198	"c/chat" => $CHAT_CHANNEL,
		3199	);
		3200
1879	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($self, $channel, $msg, $color, @extra) = @_;
		3203
		3204	$msg = $self->pl->expand_cfpod ($msg)
		3205	unless $color & cf::NDI_VERBATIM;
		3206
		3207	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3208
		3209	# check predefined channels, for the benefit of C
		3210	if ($CHANNEL{$channel}) {
		3211	$channel = $CHANNEL{$channel};
		3212
		3213	$self->ext_msg (channel_info => $channel);
		3214	$channel = $channel->{id};
		3215
		3216	} elsif (ref $channel) {
		3217	# send meta info to client, if not yet sent
		3218	unless (exists $self->{channel}{$channel->{id}}) {
		3219	$self->{channel}{$channel->{id}} = $channel;
		3220	$self->ext_msg (channel_info => $channel);
		3221	}
		3222
		3223	$channel = $channel->{id};
		3224	}
		3225
		3226	return unless @extra || length $msg;
		3227
		3228	# default colour, mask it out
		3229	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3230	if $color & cf::NDI_DEF;
		3231
		3232	my $pkt = "msg "
		3233	. $self->{json_coder}->encode (
		3234	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3235	);
		3236
		3237	$self->send_big_packet ($pkt);
		3238	}
		3239
		3240	=item $client->ext_msg ($type, @msg)
		3241
		3242	Sends an ext event to the client.
		3243
		3244	=cut
		3245
		3246	sub cf::client::ext_msg($$@) {
1880	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1881		3248
1882	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1884	}	3250	}
1885
1886		3251
1887	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1888		3253
1889	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3255	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3256	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		3257
1893	Queries can fail, so check the return code. Or don't, as queries will become	3258	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	3259	become reliable at some point in the future.
1895		3260
1896	=cut	3261	=cut
1897		3262
1898	sub cf::client::query {	3263	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	3272	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		3274
1910	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	3276	if @{ $self->{query_queue} } == 1;
		3277
		3278	1
		3279	}
		3280
		3281	=item $client->update_command_faces
		3282
		3283	=cut
		3284
		3285	our %COMMAND_FACE;
		3286
		3287	sub cf::client::update_command_faces {
		3288	my ($self) = @_;
		3289
		3290	my @faces = grep $_,
		3291	$COMMAND_FACE{standard},
		3292	$COMMAND_FACE{emote},
		3293	$COMMAND_FACE{skill},
		3294	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3295	;
		3296
		3297	$self->send_face ($_)
		3298	for @faces;
		3299	$self->flush_fx;
		3300
		3301	$self->ext_msg (command_list => @faces);
		3302	}
		3303
		3304	=item cf::client::set_command_face $type, $commands
		3305
		3306	=cut
		3307
		3308	sub cf::client::set_command_face {
		3309	my ($type, $list) = @_;
		3310
		3311	my $idx = &cf::face::set ( #d# ugly forward reference
		3312	"command_list/$type" => cf::FT_RSRC,
		3313	JSON::XS->new->utf8->encode ([ sort @$list ])
		3314	);
		3315
		3316	$COMMAND_FACE{$type} = $idx;
1912	}	3317	}
1913		3318
1914	cf::client->attach (	3319	cf::client->attach (
		3320	on_connect => sub {
		3321	my ($ns) = @_;
		3322
		3323	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3324	},
1915	on_reply => sub {	3325	on_reply => sub {
1916	my ($ns, $msg) = @_;	3326	my ($ns, $msg) = @_;
1917		3327
1918	# this weird shuffling is so that direct followup queries	3328	# this weird shuffling is so that direct followup queries
1919	# get handled first	3329	# get handled first
1920	my $queue = delete $ns->{query_queue}	3330	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	3331	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		3332
1923	(shift @$queue)->[1]->($msg);	3333	(shift @$queue)->[1]->($msg);
		3334	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		3335
1925	push @{ $ns->{query_queue} }, @$queue;	3336	push @{ $ns->{query_queue} }, @$queue;
1926		3337
1927	if (@{ $ns->{query_queue} } == @$queue) {	3338	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	3339	if (@$queue) {
…		…
1930	} else {	3341	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3342	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	3343	}
1933	}	3344	}
1934	},	3345	},
		3346	on_exticmd => sub {
		3347	my ($ns, $buf) = @_;
		3348
		3349	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3350
		3351	if (ref $msg) {
		3352	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3353
		3354	if (my $cb = $EXTIACMD{$type}) {
		3355	$cb->(
		3356	$ns,
		3357	sub {
		3358	$ns->ext_msg ("reply-$reply", @_)
		3359	if $reply;
		3360	},
		3361	@payload
		3362	);
		3363	} else {
		3364	my @reply;
		3365
		3366	if (my $cb = $EXTICMD{$type}) {
		3367	@reply = $cb->($ns, @payload);
		3368	}
		3369
		3370	$ns->ext_msg ("reply-$reply", @reply)
		3371	if $reply;
		3372	}
		3373	} else {
		3374	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3375	}
		3376
		3377	cf::override;
		3378	},
1935	);	3379	);
1936		3380
1937	=item $client->async (\&cb)	3381	=item $client->async (\&cb)
1938		3382
1939	Create a new coroutine, running the specified callback. The coroutine will	3383	Create a new coroutine, running the specified callback. The coroutine will
…		…
1955		3399
1956	$coro	3400	$coro
1957	}	3401	}
1958		3402
1959	cf::client->attach (	3403	cf::client->attach (
1960	on_destroy => sub {	3404	on_client_destroy => sub {
1961	my ($ns) = @_;	3405	my ($ns) = @_;
1962		3406
1963	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3407	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1964	},	3408	},
1965	);	3409	);
…		…
1980	our $safe = new Safe "safe";	3424	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3425	our $safe_hole = new Safe::Hole;
1982		3426
1983	$SIG{FPE} = 'IGNORE';	3427	$SIG{FPE} = 'IGNORE';
1984		3428
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3429	$safe->permit_only (Opcode::opset qw(
		3430	:base_core :base_mem :base_orig :base_math :base_loop
		3431	grepstart grepwhile mapstart mapwhile
		3432	sort time
		3433	));
1986		3434
1987	# here we export the classes and methods available to script code	3435	# here we export the classes and methods available to script code
1988		3436
1989	=pod	3437	=pod
1990		3438
1991	The following fucntions and emthods are available within a safe environment:	3439	The following functions and methods are available within a safe environment:
1992		3440
1993	cf::object contr pay_amount pay_player map	3441	cf::object
		3442	contr pay_amount pay_player map x y force_find force_add destroy
		3443	insert remove name archname title slaying race decrease split
		3444	value
		3445
1994	cf::object::player player	3446	cf::object::player
1995	cf::player peaceful	3447	player
1996	cf::map trigger	3448
		3449	cf::player
		3450	peaceful
		3451
		3452	cf::map
		3453	trigger
1997		3454
1998	=cut	3455	=cut
1999		3456
2000	for (	3457	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3458	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3459	insert remove inv nrof name archname title slaying race
		3460	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3461	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3462	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3463	["cf::map" => qw(trigger)],
2005	) {	3464	) {
2006	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3465	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3466	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2009	for @funs;	3467	for @funs;
2010	}	3468	}
2011		3469
…		…
2026		3484
2027	my $qcode = $code;	3485	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3486	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3487	$qcode =~ s/\n/\\n/g;
2030		3488
		3489	%vars = (_dummy => 0) unless %vars;
		3490
		3491	my @res;
2031	local $_;	3492	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;
2033		3493
2034	my $eval =	3494	my $eval =
2035	"do {\n"	3495	"do {\n"
2036	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3496	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2037	. "#line 0 \"{$qcode}\"\n"	3497	. "#line 0 \"{$qcode}\"\n"
2038	. $code	3498	. $code
2039	. "\n}"	3499	. "\n}"
2040	;	3500	;
2041		3501
		3502	if ($CFG{safe_eval}) {
2042	sub_generation_inc;	3503	sub_generation_inc;
		3504	local @safe::cf::_safe_eval_args = values %vars;
2043	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3505	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2044	sub_generation_inc;	3506	sub_generation_inc;
		3507	} else {
		3508	local @cf::_safe_eval_args = values %vars;
		3509	@res = wantarray ? eval eval : scalar eval $eval;
		3510	}
2045		3511
2046	if ($@) {	3512	if ($@) {
2047	warn "$@";	3513	warn "$@",
2048	warn "while executing safe code '$code'\n";	3514	"while executing safe code '$code'\n",
2049	warn "with arguments " . (join " ", %vars) . "\n";	3515	"with arguments " . (join " ", %vars) . "\n";
2050	}	3516	}
2051		3517
2052	wantarray ? @res : $res[0]	3518	wantarray ? @res : $res[0]
2053	}	3519	}
2054		3520
…		…
2068	=cut	3534	=cut
2069		3535
2070	sub register_script_function {	3536	sub register_script_function {
2071	my ($fun, $cb) = @_;	3537	my ($fun, $cb) = @_;
2072		3538
2073	no strict 'refs';	3539	$fun = "safe::$fun" if $CFG{safe_eval};
2074	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3540	*$fun = $safe_hole->wrap ($cb);
2075	}	3541	}
2076		3542
2077	=back	3543	=back
2078		3544
2079	=cut	3545	=cut
2080		3546
2081	#############################################################################	3547	#############################################################################
2082		3548	# the server's init and main functions
2083	=head2 EXTENSION DATABASE SUPPORT
2084
2085	Crossfire maintains a very simple database for extension use. It can
2086	currently store anything that can be serialised using Storable, which
2087	excludes objects.
2088
2089	The parameter C<$family> should best start with the name of the extension
2090	using it, it should be unique.
2091
2092	=over 4
2093
2094	=item $hashref = cf::db_get $family
2095
2096	Return a hashref for use by the extension C<$family>, which can be
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099
2100	=item $value = cf::db_get $family => $key
2101
2102	Returns a single value from the database
2103
2104	=item cf::db_put $family => $hashref
2105
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125		3549
2126	{	3550	{
2127	my $path = cf::localdir . "/database.pst";	3551	package cf::face;
2128		3552
2129	sub db_load() {	3553	our %HASH; # hash => idx
2130	$DB = stat $path ? Storable::retrieve $path : { };	3554	our @DATA; # dynamically-created facedata, only faceste 0 used
2131	}	3555	our @FOFS; # file offset, if > 0
		3556	our @SIZE; # size of face, in octets
		3557	our @META; # meta hash of face, if any
		3558	our $DATAFH; # facedata filehandle
2132		3559
2133	my $pid;	3560	# internal api, not finalised
		3561	sub set {
		3562	my ($name, $type, $data) = @_;
2134		3563
2135	sub db_save() {	3564	my $idx = cf::face::find $name;
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144		3565
2145	my $dirty;	3566	if ($idx) {
2146		3567	delete $HASH{cf::face::get_csum $idx};
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});
2155
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}
2160
2161	sub db_get($;$) {
2162	@_ >= 2
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166
2167	sub db_put($$;$) {
2168	if (@_ >= 3) {
2169	$DB->{$_[0]}{$_[1]} = $_[2];
2170	} else {	3568	} else {
2171	$DB->{$_[0]} = $_[1];	3569	$idx = cf::face::alloc $name;
2172	}
2173	db_dirty;
2174	}
2175
2176	cf::global->attach (
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3570	}
		3571
		3572	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3573
		3574	cf::face::set_type $idx, $type;
		3575	cf::face::set_csum $idx, 0, $hash;
		3576
		3577	# we need to destroy the SV itself, not just modify it, as a running ix
		3578	# might hold a reference to it: "delete" achieves that.
		3579	delete $FOFS[0][$idx];
		3580	delete $DATA[0][$idx];
		3581	$DATA[0][$idx] = $data;
		3582	$SIZE[0][$idx] = length $data;
		3583	delete $META[$idx];
		3584	$HASH{$hash} = $idx;#d#
		3585
		3586	$idx
		3587	}
		3588
		3589	sub _get_data($$$) {
		3590	my ($idx, $set, $cb) = @_;
		3591
		3592	if (defined $DATA[$set][$idx]) {
		3593	$cb->($DATA[$set][$idx]);
		3594	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3595	my $size = $SIZE[$set][$idx];
		3596	my $buf;
		3597	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3598	if ($_[0] == $size) {
		3599	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3600	$cb->($buf);
		3601	} else {
		3602	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3603	}
		3604	};
		3605	} else {
		3606	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3607	}
		3608	}
		3609
		3610	# rather ineffient
		3611	sub cf::face::get_data($;$) {
		3612	my ($idx, $set) = @_;
		3613
		3614	_get_data $idx, $set, Coro::rouse_cb;
		3615	Coro::rouse_wait
		3616	}
		3617
		3618	sub cf::face::ix {
		3619	my ($ns, $set, $idx, $pri) = @_;
		3620
		3621	_get_data $idx, $set, sub {
		3622	$ns->ix_send ($idx, $pri, $_[0]);
		3623	};
		3624	}
		3625	}
		3626
		3627	sub load_facedata($) {
		3628	my ($path) = @_;
		3629
		3630	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3631
		3632	trace "loading facedata from $path\n";
		3633
		3634	my $facedata = decode_storable load_file "$path/faceinfo";
		3635
		3636	$facedata->{version} == 2
		3637	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3638
		3639	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3640	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3641
		3642	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3643
		3644	# BEGIN ATOMIC
		3645	# from here on, everything must be atomic - no thread switch allowed
		3646	my $t1 = EV::time;
		3647
		3648	{
		3649	my $faces = $facedata->{faceinfo};
		3650
		3651	for my $face (sort keys %$faces) {
		3652	my $info = $faces->{$face};
		3653	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3654
		3655	cf::face::set_visibility $idx, $info->{visibility};
		3656	cf::face::set_magicmap $idx, $info->{magicmap};
		3657	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3658	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3659	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3660	$cf::face::HASH{$info->{hash64}} = $idx;
		3661	delete $cf::face::META[$idx];
		3662	}
		3663
		3664	while (my ($face, $info) = each %$faces) {
		3665	next unless $info->{smooth};
		3666
		3667	my $idx = cf::face::find $face
		3668	or next;
		3669
		3670	if (my $smooth = cf::face::find $info->{smooth}) {
		3671	cf::face::set_smooth $idx, $smooth;
		3672	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3673	} else {
		3674	error "smooth face '$info->{smooth}' not found for face '$face'";
		3675	}
		3676	}
		3677	}
		3678
		3679	{
		3680	my $anims = $facedata->{animinfo};
		3681
		3682	while (my ($anim, $info) = each %$anims) {
		3683	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3684	}
		3685
		3686	cf::anim::invalidate_all; # d'oh
		3687	}
		3688
		3689	{
		3690	my $res = $facedata->{resource};
		3691
		3692	while (my ($name, $info) = each %$res) {
		3693	if (defined (my $type = $info->{type})) {
		3694	# TODO: different hash - must free and use new index, or cache ixface data queue
		3695	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3696
		3697	cf::face::set_type $idx, $type;
		3698	cf::face::set_csum $idx, 0, $info->{hash};
		3699	$cf::face::SIZE[0][$idx] = $info->{size};
		3700	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3701	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3702	$cf::face::HASH{$info->{hash}} = $idx;
		3703	} else {
		3704	# $RESOURCE{$name} = $info; # unused
		3705	}
		3706	}
		3707	}
		3708
		3709	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3710
		3711	# HACK to clear player env face cache, we need some signal framework
		3712	# for this (global event?)
		3713	%ext::player_env::MUSIC_FACE_CACHE = ();
		3714
		3715	# END ATOMIC
		3716
		3717	cf::debug "facedata atomic update time ", EV::time - $t1;
		3718
		3719	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3720
		3721	aio_close $fh if $fh; # close old facedata
		3722
		3723	1
		3724	}
		3725
		3726	register_exticmd fx_want => sub {
		3727	my ($ns, $want) = @_;
		3728
		3729	while (my ($k, $v) = each %$want) {
		3730	$ns->fx_want ($k, $v);
		3731	}
		3732	};
		3733
		3734	sub load_resource_file($) {
		3735	my $guard = lock_acquire "load_resource_file";
		3736
		3737	my $status = load_resource_file_ $_[0];
		3738	get_slot 0.1, 100;
		3739	cf::arch::commit_load;
		3740
		3741	$status
		3742	}
		3743
		3744	sub reload_exp_table {
		3745	_reload_exp_table;
		3746
		3747	cf::face::set
		3748	"res/exp_table" => FT_RSRC,
		3749	JSON::XS->new->utf8->canonical->encode (
		3750	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
2181	);	3751	);
2182	}	3752	}
2183		3753
2184	#############################################################################	3754	sub reload_materials {
2185	# the server's main()	3755	_reload_materials;
		3756	}
2186		3757
2187	sub cfg_load {	3758	sub reload_regions {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3759	# HACK to clear player env face cache, we need some signal framework
2189	or return;	3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
2190		3762
2191	local $/;	3763	load_resource_file "$MAPDIR/regions"
2192	*CFG = YAML::Syck::Load <$fh>;	3764	or die "unable to load regions file\n";
2193		3765
		3766	for (cf::region::list) {
		3767	$_->{match} = qr/$_->{match}/
		3768	if exists $_->{match};
		3769	}
		3770	}
		3771
		3772	sub reload_facedata {
		3773	load_facedata $DATADIR
		3774	or die "unable to load facedata\n";
		3775	}
		3776
		3777	sub reload_archetypes {
		3778	load_resource_file "$DATADIR/archetypes"
		3779	or die "unable to load archetypes\n";
		3780
		3781	cf::face::set
		3782	"res/skill_info" => FT_RSRC,
		3783	JSON::XS->new->utf8->canonical->encode (
		3784	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3785	);
		3786
		3787	cf::face::set
		3788	"res/spell_paths" => FT_RSRC,
		3789	JSON::XS->new->utf8->canonical->encode (
		3790	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3791	);
		3792
		3793	# command completion
		3794	my @commands;
		3795
		3796	for (0..cf::arch::skillvec_size - 1) {
		3797	my $skill = cf::arch::skillvec $_;
		3798	my $name = $skill->name;
		3799	my $flags = cf::skill_flags $skill->subtype;
		3800
		3801	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3802	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3803	}
		3804
		3805	cf::client::set_command_face skill => \@commands;
		3806	}
		3807
		3808	sub reload_treasures {
		3809	load_resource_file "$DATADIR/treasures"
		3810	or die "unable to load treasurelists\n";
		3811	}
		3812
		3813	sub reload_sound {
		3814	trace "loading sound config from $DATADIR/sound\n";
		3815
		3816	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3817
		3818	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3819	my $sound = $soundconf->{compat}[$_]
		3820	or next;
		3821
		3822	my $face = cf::face::find "sound/$sound->[1]";
		3823	cf::sound::set $sound->[0] => $face;
		3824	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3825	}
		3826
		3827	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3828	my $face = cf::face::find "sound/$v";
		3829	cf::sound::set $k => $face;
		3830	}
		3831	}
		3832
		3833	sub reload_resources {
		3834	trace "reloading resource files...\n";
		3835
		3836	reload_materials;
		3837	reload_facedata;
		3838	reload_exp_table;
		3839	reload_sound;
		3840	reload_archetypes;
		3841	reload_regions;
		3842	reload_treasures;
		3843
		3844	trace "finished reloading resource files\n";
		3845	}
		3846
		3847	sub reload_config {
		3848	trace "reloading config file...\n";
		3849
		3850	my $config = load_file "$CONFDIR/config";
		3851	utf8::decode $config;
		3852	*CFG = decode_yaml $config;
		3853
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3854	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2195		3855
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3856	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3857	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2198		3858
2199	if (exists $CFG{mlockall}) {	3859	if (exists $CFG{mlockall}) {
…		…
2203	};	3863	};
2204	warn $@ if $@;	3864	warn $@ if $@;
2205	}	3865	}
2206	}	3866	}
2207		3867
		3868	sub pidfile() {
		3869	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3870	or die "$PIDFILE: $!";
		3871	flock $fh, &Fcntl::LOCK_EX
		3872	or die "$PIDFILE: flock: $!";
		3873	$fh
		3874	}
		3875
		3876	# make sure only one server instance is running at any one time
		3877	sub atomic {
		3878	my $fh = pidfile;
		3879
		3880	my $pid = <$fh>;
		3881	kill 9, $pid if $pid > 0;
		3882
		3883	seek $fh, 0, 0;
		3884	print $fh $$;
		3885	}
		3886
		3887	sub main_loop {
		3888	trace "EV::loop starting\n";
		3889	if (1) {
		3890	EV::loop;
		3891	}
		3892	trace "EV::loop returned\n";
		3893	goto &main_loop unless $REALLY_UNLOOP;
		3894	}
		3895
2208	sub main {	3896	sub main {
		3897	cf::init_globals; # initialise logging
		3898
		3899	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3900	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3901	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3902	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3903
		3904	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3905
2209	# we must not ever block the main coroutine	3906	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3907	$Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3908	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3909	(async {
		3910	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3911	EV::loop EV::LOOP_ONESHOT;
		3912	})->prio (Coro::PRIO_MAX);
2213	};	3913	};
2214		3914
2215	cfg_load;	3915	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3916
		3917	cf::sync_job {
		3918	cf::incloader::init ();
		3919
		3920	db_init;
		3921
		3922	cf::init_anim;
		3923	cf::init_attackmess;
		3924	cf::init_dynamic;
		3925
		3926	cf::load_settings;
		3927
		3928	reload_resources;
		3929	reload_config;
		3930
		3931	cf::init_uuid;
		3932	cf::init_signals;
		3933	cf::init_skills;
		3934
		3935	cf::init_beforeplay;
		3936
		3937	atomic;
		3938
2217	load_extensions;	3939	load_extensions;
2218	Event::loop;	3940
		3941	utime time, time, $RUNTIMEFILE;
		3942
		3943	# no (long-running) fork's whatsoever before this point(!)
		3944	use POSIX ();
		3945	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3946
		3947	cf::_post_init 0;
		3948	};
		3949
		3950	cf::object::thawer::errors_are_fatal 0;
		3951	info "parse errors in files are no longer fatal from this point on.\n";
		3952
		3953	AE::postpone {
		3954	undef &main; # free gobs of memory :)
		3955	};
		3956
		3957	goto &main_loop;
2219	}	3958	}
2220		3959
2221	#############################################################################	3960	#############################################################################
2222	# initialisation and cleanup	3961	# initialisation and cleanup
2223		3962
2224	# install some emergency cleanup handlers	3963	# install some emergency cleanup handlers
2225	BEGIN {	3964	BEGIN {
		3965	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3966	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3967	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3968	cf::cleanup "SIG$signal";
2232	},
2233	);	3969	};
		3970	}
		3971	}
		3972
		3973	sub write_runtime_sync {
		3974	my $t0 = AE::time;
		3975
		3976	# first touch the runtime file to show we are still running:
		3977	# the fsync below can take a very very long time.
		3978
		3979	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3980
		3981	my $guard = cf::lock_acquire "write_runtime";
		3982
		3983	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3984	or return;
		3985
		3986	my $value = $cf::RUNTIME + 90 + 10;
		3987	# 10 is the runtime save interval, for a monotonic clock
		3988	# 60 allows for the watchdog to kill the server.
		3989
		3990	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3991	and return;
		3992
		3993	# always fsync - this file is important
		3994	aio_fsync $fh
		3995	and return;
		3996
		3997	# touch it again to show we are up-to-date
		3998	aio_utime $fh, undef, undef;
		3999
		4000	close $fh
		4001	or return;
		4002
		4003	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4004	and return;
		4005
		4006	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4007
2234	}	4008	1
		4009	}
		4010
		4011	our $uuid_lock;
		4012	our $uuid_skip;
		4013
		4014	sub write_uuid_sync($) {
		4015	$uuid_skip ||= $_[0];
		4016
		4017	return if $uuid_lock;
		4018	local $uuid_lock = 1;
		4019
		4020	my $uuid = "$LOCALDIR/uuid";
		4021
		4022	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4023	or return;
		4024
		4025	my $value = uuid_seq uuid_cur;
		4026
		4027	unless ($value) {
		4028	info "cowardly refusing to write zero uuid value!\n";
		4029	return;
		4030	}
		4031
		4032	my $value = uuid_str $value + $uuid_skip;
		4033	$uuid_skip = 0;
		4034
		4035	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4036	and return;
		4037
		4038	# always fsync - this file is important
		4039	aio_fsync $fh
		4040	and return;
		4041
		4042	close $fh
		4043	or return;
		4044
		4045	aio_rename "$uuid~", $uuid
		4046	and return;
		4047
		4048	trace "uuid file written ($value).\n";
		4049
		4050	1
		4051
		4052	}
		4053
		4054	sub write_uuid($$) {
		4055	my ($skip, $sync) = @_;
		4056
		4057	$sync ? write_uuid_sync $skip
		4058	: async { write_uuid_sync $skip };
2235	}	4059	}
2236		4060
2237	sub emergency_save() {	4061	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	4062	my $freeze_guard = cf::freeze_mainloop;
2239		4063
2240	warn "enter emergency perl save\n";	4064	info "emergency_perl_save: enter\n";
		4065
		4066	# this is a trade-off: we want to be very quick here, so
		4067	# save all maps without fsync, and later call a global sync
		4068	# (which in turn might be very very slow)
		4069	local $USE_FSYNC = 0;
2241		4070
2242	cf::sync_job {	4071	cf::sync_job {
		4072	cf::write_runtime_sync; # external watchdog should not bark
		4073
2243	# use a peculiar iteration method to avoid tripping on perl	4074	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	4075	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	4076	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	4077	info "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	4078	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	4079	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	4080	$pl->valid or next;
		4081	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	4082	$pl->save;
2251	}	4083	}
2252	warn "end emergency player save\n";	4084	info "emergency_perl_save: end player save\n";
2253		4085
2254	warn "begin emergency map save\n";	4086	cf::write_runtime_sync; # external watchdog should not bark
		4087
		4088	info "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	4089	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	4090	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	4091	$map->valid or next;
2258	$map->save;	4092	$map->save;
2259	}	4093	}
2260	warn "end emergency map save\n";	4094	info "emergency_perl_save: end map save\n";
		4095
		4096	cf::write_runtime_sync; # external watchdog should not bark
		4097
		4098	info "emergency_perl_save: begin database checkpoint\n";
		4099	BDB::db_env_txn_checkpoint $DB_ENV;
		4100	info "emergency_perl_save: end database checkpoint\n";
		4101
		4102	info "emergency_perl_save: begin write uuid\n";
		4103	write_uuid_sync 1;
		4104	info "emergency_perl_save: end write uuid\n";
		4105
		4106	cf::write_runtime_sync; # external watchdog should not bark
		4107
		4108	trace "emergency_perl_save: syncing database to disk";
		4109	BDB::db_env_txn_checkpoint $DB_ENV;
		4110
		4111	info "emergency_perl_save: starting sync\n";
		4112	IO::AIO::aio_sync sub {
		4113	info "emergency_perl_save: finished sync\n";
		4114	};
		4115
		4116	cf::write_runtime_sync; # external watchdog should not bark
		4117
		4118	trace "emergency_perl_save: flushing outstanding aio requests";
		4119	while (IO::AIO::nreqs || BDB::nreqs) {
		4120	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4121	}
		4122
		4123	cf::write_runtime_sync; # external watchdog should not bark
2261	};	4124	};
2262		4125
2263	warn "leave emergency perl save\n";	4126	info "emergency_perl_save: leave\n";
2264	}	4127	}
2265		4128
		4129	sub post_cleanup {
		4130	my ($make_core) = @_;
		4131
		4132	IO::AIO::flush;
		4133
		4134	error Carp::longmess "post_cleanup backtrace"
		4135	if $make_core;
		4136
		4137	my $fh = pidfile;
		4138	unlink $PIDFILE if <$fh> == $$;
		4139	}
		4140
		4141	# a safer delete_package, copied from Symbol
		4142	sub clear_package($) {
		4143	my $pkg = shift;
		4144
		4145	# expand to full symbol table name if needed
		4146	unless ($pkg =~ /^main::.*::$/) {
		4147	$pkg = "main$pkg" if $pkg =~ /^::/;
		4148	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4149	$pkg .= '::' unless $pkg =~ /::$/;
		4150	}
		4151
		4152	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4153	my $stem_symtab = *{$stem}{HASH};
		4154
		4155	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4156	or return;
		4157
		4158	# clear all symbols
		4159	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4160	for my $name (keys %$leaf_symtab) {
		4161	_gv_clear *{"$pkg$name"};
		4162	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4163	}
		4164	}
		4165
2266	sub reload() {	4166	sub do_reload_perl() {
2267	# can/must only be called in main	4167	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	4168	unless (in_main) {
2269	warn "can only reload from main coroutine\n";	4169	error "can only reload from main coroutine";
2270	return;	4170	return;
2271	}	4171	}
2272		4172
2273	warn "reloading...";	4173	return if $RELOAD++;
2274		4174
2275	warn "freezing server";	4175	my $t1 = AE::time;
2276	my $guard = freeze_mainloop;	4176
		4177	while ($RELOAD) {
		4178	cf::get_slot 0.1, -1, "reload_perl";
		4179	info "perl_reload: reloading...";
		4180
		4181	trace "perl_reload: entering sync_job";
		4182
		4183	cf::sync_job {
2277	cf::emergency_save;	4184	#cf::emergency_save;
2278		4185
2279	warn "sync database to disk";	4186	trace "perl_reload: cancelling all extension coros";
2280	cf::db_sync;
2281	IO::AIO::flush;
2282
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved
2285
2286	warn "cancel all watchers";
2287	for (Event::all_watchers) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;	4187	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();	4188	%EXT_CORO = ();
2294		4189
2295	warn "remove commands";	4190	trace "perl_reload: removing commands";
2296	%COMMAND = ();	4191	%COMMAND = ();
2297		4192
2298	warn "remove ext commands";	4193	trace "perl_reload: removing ext/exti commands";
2299	%EXTCMD = ();	4194	%EXTCMD = ();
		4195	%EXTICMD = ();
2300		4196
2301	warn "unload/nuke all extensions";	4197	trace "perl_reload: unloading/nuking all extensions";
2302	for my $pkg (@EXTS) {	4198	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";	4199	trace "... unloading $pkg";
2304		4200
2305	if (my $cb = $pkg->can ("unload")) {	4201	if (my $cb = $pkg->can ("unload")) {
2306	eval {	4202	eval {
2307	$cb->($pkg);	4203	$cb->($pkg);
2308	1	4204	1
2309	} or warn "$pkg unloaded, but with errors: $@";	4205	} or error "$pkg unloaded, but with errors: $@";
		4206	}
		4207
		4208	trace "... clearing $pkg";
		4209	clear_package $pkg;
2310	}	4210	}
2311		4211
2312	warn "... nuking $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315
2316	warn "unload all perl modules loaded from $LIBDIR";	4212	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {	4213	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4214	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319		4215
2320	warn "removing <$k>";	4216	trace "... unloading $k";
2321	delete $INC{$k};	4217	delete $INC{$k};
2322		4218
2323	$k =~ s/\.pm$//;	4219	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;	4220	$k =~ s/\//::/g;
2325		4221
2326	if (my $cb = $k->can ("unload_module")) {	4222	if (my $cb = $k->can ("unload_module")) {
2327	$cb->();	4223	$cb->();
		4224	}
		4225
		4226	clear_package $k;
2328	}	4227	}
2329		4228
2330	Symbol::delete_package $k;
2331	}
2332
2333	warn "get rid of safe::, as good as possible";	4229	trace "perl_reload: getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	4230	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4231	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		4232
2337	warn "unload cf.pm \"a bit\"";	4233	trace "perl_reload: unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	4234	delete $INC{"cf.pm"};
		4235	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		4236
2340	# don't, removes xs symbols, too,	4237	# don't, removes xs symbols, too,
2341	# and global variables created in xs	4238	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	4239	#clear_package __PACKAGE__;
2343		4240
2344	warn "reloading cf.pm";	4241	info "perl_reload: unload completed, starting to reload now";
		4242
		4243	trace "perl_reload: reloading cf.pm";
2345	require cf;	4244	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4245	cf::_connect_to_perl_1;
2347		4246
2348	warn "load config and database again";	4247	trace "perl_reload: loading config and database again";
2349	cf::cfg_load;	4248	cf::reload_config;
2350	cf::db_load;
2351		4249
2352	warn "load extensions";	4250	trace "perl_reload: loading extensions";
2353	cf::load_extensions;	4251	cf::load_extensions;
2354		4252
		4253	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	4254	trace "perl_reload: reattaching attachments to objects/players";
2356	_global_reattach;	4255	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	4256	trace "perl_reload: reattaching attachments to maps";
2358	reattach $_ for values %MAP;	4257	reattach $_ for values %MAP;
		4258	trace "perl_reload: reattaching attachments to players";
		4259	reattach $_ for values %PLAYER;
		4260	}
		4261
		4262	cf::_post_init 1;
		4263
		4264	trace "perl_reload: leaving sync_job";
		4265
		4266	1
		4267	} or do {
		4268	error $@;
		4269	cf::cleanup "perl_reload: error, exiting.";
		4270	};
		4271
		4272	--$RELOAD;
		4273	}
		4274
		4275	$t1 = AE::time - $t1;
		4276	info "perl_reload: completed in ${t1}s\n";
		4277	};
		4278
		4279	our $RELOAD_WATCHER; # used only during reload
		4280
		4281	sub reload_perl() {
		4282	# doing reload synchronously and two reloads happen back-to-back,
		4283	# coro crashes during coro_state_free->destroy here.
		4284
		4285	$RELOAD_WATCHER ||= cf::async {
		4286	Coro::AIO::aio_wait cache_extensions;
		4287
		4288	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4289	do_reload_perl;
		4290	undef $RELOAD_WATCHER;
		4291	};
2359	};	4292	};
2360		4293	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		4294
2370	register_command "reload" => sub {	4295	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	4296	my ($who, $arg) = @_;
2372		4297
2373	if ($who->flag (FLAG_WIZ)) {	4298	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	4299	$who->message ("reloading server.");
		4300	async {
		4301	$Coro::current->{desc} = "perl_reload";
		4302	reload_perl;
		4303	};
2377	}	4304	}
2378	};	4305	};
2379		4306
2380	unshift @INC, $LIBDIR;	4307	#############################################################################
2381		4308
2382	$TICK_WATCHER = Event->timer (	4309	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		4310
2390	cf::server_tick; # one server iteration	4311	sub wait_for_tick() {
2391	$RUNTIME += $TICK;	4312	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2392	$NEXT_TICK += $TICK;
2393		4313
		4314	$WAIT_FOR_TICK->wait;
		4315	}
		4316
		4317	sub wait_for_tick_begin() {
		4318	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4319
		4320	my $signal = new Coro::Signal;
		4321	push @WAIT_FOR_TICK_BEGIN, $signal;
		4322	$signal->wait;
		4323	}
		4324
		4325	sub tick {
		4326	if ($Coro::current != $Coro::main) {
		4327	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4328	unless ++$bug_warning > 10;
		4329	return;
		4330	}
		4331
		4332	cf::one_tick; # one server iteration
		4333
		4334	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4335
		4336	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4337	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4338	Coro::async_pool {
		4339	$Coro::current->{desc} = "runtime saver";
		4340	write_runtime_sync
		4341	or error "ERROR: unable to write runtime file: $!";
		4342	};
		4343	}
		4344
		4345	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4346	$sig->send;
		4347	}
2394	$WAIT_FOR_TICK->broadcast;	4348	$WAIT_FOR_TICK->broadcast;
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2396		4349
2397	# if we are delayed by four ticks or more, skip them all	4350	$LOAD = ($NOW - $TICK_START) / $TICK;
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4351	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2399		4352
2400	$TICK_WATCHER->at ($NEXT_TICK);	4353	if (0) {
2401	$TICK_WATCHER->start;	4354	if ($NEXT_TICK) {
		4355	my $jitter = $TICK_START - $NEXT_TICK;
		4356	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4357	debug "jitter $JITTER\n";#d#
		4358	}
2402	},	4359	}
2403	);	4360	}
2404		4361
		4362	{
		4363	# configure BDB
		4364	info "initialising database";
		4365
		4366	BDB::min_parallel 16;
		4367	BDB::max_poll_reqs $TICK * 0.1;
		4368	#$AnyEvent::BDB::WATCHER->priority (1);
		4369
		4370	unless ($DB_ENV) {
		4371	$DB_ENV = BDB::db_env_create;
		4372	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4373	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4374	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4375	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4376	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4377
		4378	cf::sync_job {
		4379	eval {
		4380	BDB::db_env_open
		4381	$DB_ENV,
		4382	$BDBDIR,
		4383	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4384	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4385	0666;
		4386
		4387	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4388	};
		4389
		4390	cf::cleanup "db_env_open(db): $@" if $@;
		4391	};
		4392	}
		4393
		4394	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4395	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4396	};
		4397	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4398	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4399	};
		4400	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4401	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4402	};
		4403
		4404	info "database initialised";
		4405	}
		4406
		4407	{
		4408	# configure IO::AIO
		4409
		4410	info "initialising aio";
		4411	IO::AIO::min_parallel 8;
2405	IO::AIO::max_poll_time $TICK * 0.2;	4412	IO::AIO::max_poll_time $TICK * 0.1;
		4413	undef $AnyEvent::AIO::WATCHER;
		4414	info "aio initialised";
		4415	}
2406		4416
2407	Event->io (	4417	our $_log_backtrace;
2408	fd => IO::AIO::poll_fileno,	4418	our $_log_backtrace_last;
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414		4419
2415	Event->timer (	4420	sub _log_backtrace {
2416	data => WF_AUTOCANCEL,	4421	my ($msg, @addr) = @_;
2417	after => 0,	4422
2418	interval => 10,	4423	$msg =~ s/\n$//;
2419	cb => sub {	4424
2420	(Coro::unblock_sub {	4425	if ($_log_backtrace_last eq $msg) {
2421	write_runtime	4426	LOG llevInfo, "[ABT] $msg\n";
2422	or warn "ERROR: unable to write runtime file: $!";	4427	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4428	# limit the # of concurrent backtraces
		4429	} elsif ($_log_backtrace < 2) {
		4430	$_log_backtrace_last = $msg;
		4431	++$_log_backtrace;
		4432	my $perl_bt = Carp::longmess $msg;
		4433	async {
		4434	$Coro::current->{desc} = "abt $msg";
		4435
		4436	my @bt = fork_call {
		4437	@addr = map { sprintf "%x", $_ } @addr;
		4438	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4439	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4440	or die "addr2line: $!";
		4441
		4442	my @funcs;
		4443	my @res = <$fh>;
		4444	chomp for @res;
		4445	while (@res) {
		4446	my ($func, $line) = splice @res, 0, 2, ();
		4447	push @funcs, "[$func] $line";
		4448	}
		4449
		4450	@funcs
		4451	};
		4452
		4453	LOG llevInfo, "[ABT] $perl_bt\n";
		4454	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4455	LOG llevInfo, "[ABT] $_\n" for @bt;
		4456	--$_log_backtrace;
2423	})->();	4457	};
		4458	} else {
		4459	LOG llevInfo, "[ABT] $msg\n";
		4460	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2424	},	4461	}
2425	);	4462	}
		4463
		4464	# load additional modules
		4465	require "cf/$_.pm" for @EXTRA_MODULES;
		4466	cf::_connect_to_perl_2;
2426		4467
2427	END { cf::emergency_save }	4468	END { cf::emergency_save }
2428		4469
2429	1	4470	1
2430		4471

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