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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.611 by root, Tue Nov 20 14:54:17 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
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
53		149
54	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
55	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		152
57	our %PLAYER; # all users	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
58	our %MAP; # all maps	154	our $LOADAVG; # same thing, but with alpha-smoothing
59	our $LINK_MAP; # the special {link} map	155	our $JITTER; # average jitter
60	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
61		157
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	158	our @POST_INIT;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
64		165
65	binmode STDOUT;	166	binmode STDOUT;
66	binmode STDERR;	167	binmode STDERR;
67		168
68	# read virtual server time, if available	169	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
73	}	174	}
74		175
75	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		177
81	# a special map that is always available	178	mkdir $_
82	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
83	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
84		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
85	#############################################################################	189	#############################################################################
86		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
87	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
88		203
89	=over 4	204	=over 4
90		205
91	=item $cf::UPTIME	206	=item $cf::UPTIME
92		207
93	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.
94		224
95	=item $cf::RUNTIME	225	=item $cf::RUNTIME
96		226
97	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
98	every server tick.	228	every server tick.
99		229
100	=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
101		233
102	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		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
105	=item $cf::NOW	245	=item $cf::LOAD
106		246
107	The time of the last (current) server tick.	247	The raw value load value from the last tick.
108
109	=item $cf::TICK
110
111	The interval between server ticks, in seconds.
112		248
113	=item %cf::CFG	249	=item %cf::CFG
114		250
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	252	from wherever your confdir points to.
117		253
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		255
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
122	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
123	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
124		289
125	=back	290	=back
126		291
127	=cut	292	=cut
128		293
129	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
130	*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 {
131	my $msg = join "", @_;	301	my $msg = join "", @_;
132	utf8::encode $msg;
133		302
134	$msg .= "\n"	303	$msg .= "\n"
135	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
136		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
137	LOG llevError, $msg;	308	LOG llevWarn, $msg;
138	};	309	};
139	}	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	};
140		324
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		332
148	# 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
149	# within the Safe compartment.	334	# within the Safe compartment.
150	for my $pkg (qw(	335	for my $pkg (qw(
151	cf::global cf::attachable	336	cf::global cf::attachable
152	cf::object cf::object::player	337	cf::object cf::object::player
153	cf::client cf::player	338	cf::client cf::player
154	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
155	cf::map cf::party cf::region	341	cf::party cf::region
156	)) {	342	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	344	}
160		345
161	$Event::DIED = sub {	346	$EV::DIED = sub {
162	warn "error in event callback: @_";	347	warn "error in event callback: $@";
163	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
164		356
165	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
166		358
167	=over 4	359	=over 4
168		360
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	380	$d
189	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
190	}	382	}
191		383
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
193		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
194	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
195		437
196	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
197		439
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
206		441
207	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
208		443
209	=cut	444	=cut
210		445
211	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
213	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	}
214	}	511	}
215		512
216	=item cf::lock_wait $string	513	=item cf::lock_wait $string
217		514
218	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
219		516
220	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
221		518
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
225	returned.	522	returned.
226		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
227	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
228	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
229		529
230	=cut	530	=item $locked = cf::lock_active $string
231		531
232	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
233		537
234	sub lock_wait($) {	538	sub lock_wait($) {
235	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	540	}
243		541
244	sub lock_acquire($) {	542	sub lock_acquire($) {
245	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
246		545
247	# wait, to be sure we are not locked	546	sub lock_active($) {
248	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	548	}
257		549
258	sub freeze_mainloop {	550	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
260		552
261	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	554	}
263	$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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
264	}	639	}
265		640
266	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
267		642
268	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		648
274	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
275		650
276	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
277		652
278	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
281		657
282	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
285	fast or be very important.	661	fast or be very important.
…		…
287	=cut	663	=cut
288		664
289	sub sync_job(&) {	665	sub sync_job(&) {
290	my ($job) = @_;	666	my ($job) = @_;
291		667
292	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
293	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
295		673
296	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	675
298	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
299		677
300	my $busy = 1;	678	my $busy = 1;
301	my @res;	679	my @res;
302		680
303	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	683	@res = eval { $job->() };
305	warn $@ if $@;	684	error $@ if $@;
306	undef $busy;	685	undef $busy;
307	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
308		687
309	while ($busy) {	688	while ($busy) {
310	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
311	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
312		699
313	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
314	} else {	701	} else {
315	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
316		703
…		…
336	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
337		724
338	$coro	725	$coro
339	}	726	}
340		727
341	sub write_runtime {	728	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		729
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
345	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
346		734
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		736
351	aio_fsync $fh	737	sub post_fork {
352	and return;	738	reset_signals;
		739	}
353		740
354	close $fh	741	sub fork_call(&@) {
355	or return;	742	my ($cb, @args) = @_;
356		743
357	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
358	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
359		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
360	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 });
361	}	927	}
362		928
363	=back	929	=back
364		930
365	=cut	931	=cut
366		932
367	#############################################################################	933	#############################################################################
368		934
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
526		936
527	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
528	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")
529	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
530		940
531	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>
532	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
533	crossfire+).	943	Deliantra).
534		944
535	=over 4	945	=over 4
536		946
537	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
538		948
…		…
582	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
583		993
584	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
585	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
586		996
587	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
588	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.
589		999
590	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
591		1001
592	=over 4	1002	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	1063	our @CB_MAP = ();
654		1064
655	my %attachment;	1065	my %attachment;
656		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
657	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
659		1075
660	use sort 'stable';	1076	use sort 'stable';
661		1077
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
696		1112
697	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		1117
702	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
704		1120
705	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
710		1126
711	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
712	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
713		1129
714	} elsif (ref $type) {	1130	} elsif (ref $type) {
715	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
716		1132
717	} else {	1133	} else {
718	shift @arg;	1134	shift @arg;
719	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
720	}	1136	}
721	}	1137	}
722	}	1138	}
723		1139
724	sub _object_attach {	1140	sub _object_attach {
…		…
734	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
735	}	1151	}
736		1152
737	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
738	} else {	1154	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
740	}	1156	}
741		1157
742	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
743	}	1159	}
744		1160
…		…
746	if (ref $_[0]) {	1162	if (ref $_[0]) {
747	_object_attach @_;	1163	_object_attach @_;
748	} else {	1164	} else {
749	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
750	}	1166	}
		1167	_recalc_want;
751	};	1168	};
752		1169
753	# all those should be optimised	1170	# all those should be optimised
754	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
759	reattach ($obj);	1176	reattach ($obj);
760	} else {	1177	} else {
761	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
762	}	1179	}
		1180	_recalc_want;
763	};	1181	};
764		1182
765	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
767		1185
…		…
782	";	1200	";
783	die if $@;	1201	die if $@;
784	}	1202	}
785		1203
786	our $override;	1204	our $override;
787	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?
788		1206
789	sub override {	1207	sub override {
790	$override = 1;	1208	$override = 1;
791	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
792	}	1210	}
793		1211
794	sub do_invoke {	1212	sub do_invoke {
795	my $event = shift;	1213	my $event = shift;
796	my $callbacks = shift;	1214	my $callbacks = shift;
797		1215
798	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
799		1217
800	local $override;	1218	local $override;
801		1219
802	for (@$callbacks) {	1220	for (@$callbacks) {
803	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
804		1222
805	if ($@) {	1223	if ($@) {
806	warn "$@";
807	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
808	override;	1225	override;
809	}	1226	}
810		1227
811	return 1 if $override;	1228	return 1 if $override;
812	}	1229	}
813		1230
814	0	1231	0
815	}	1232	}
816		1233
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1235
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1237
821	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
822		1239
823	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
824	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
825	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1243
827	=back	1244	=back
828		1245
829	=cut	1246	=cut
830		1247
831	#############################################################################	1248	#############################################################################
832	# 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	}
833		1292
834	sub reattach {	1293	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
836	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
837		1299
838	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
839		1301
840	@$registry = ();	1302	@$registry = ();
841		1303
…		…
846	for (@$attach) {	1308	for (@$attach) {
847	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
848	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
849	}	1311	}
850	} else {	1312	} else {
851	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
852	}	1314	}
853	}	1315	}
854	}	1316	}
855		1317
856	cf::attachable->attach (	1318	cf::attachable->attach (
857	prio => -1000000,	1319	prio => -1000000,
858	on_instantiate => sub {	1320	on_instantiate => sub {
859	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
860		1322
861	$data = from_json $data;	1323	$data = decode_json $data;
862		1324
863	for (@$data) {	1325	for (@$data) {
864	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
865		1327
866	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1344	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
884		1346
885	sync_job {	1347	sync_job {
886	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
889		1353
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$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;
893	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
894	close $fh;	1361	aio_close $fh;
895		1362
896	if (@$objs) {	1363	if (@$objs) {
897	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) {
898	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	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;
901	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
902	close $fh;	1372	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
904	}	1374	}
905	} else {	1375	} else {
906	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
907	}	1377	}
908		1378
909	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1383	} else {
911	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
912	}	1385	}
913	} else {	1386	} else {
914	aio_unlink $filename;	1387	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
916	}	1389	}
917	}	1390	};
918	}	1391	}
919		1392
920	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
922		1395
…		…
934	or return;	1407	or return;
935		1408
936	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
938	or return;	1411	or return;
		1412
939	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
940	}	1415	}
941		1416
		1417	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
944	return ($data, $av);	1422	($data, $av)
945	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
946		1430
947	#############################################################################	1431	#############################################################################
948	# command handling &c	1432	# command handling &c
949		1433
950	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
951		1435
952	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
953	$name.	1437	$name.
954		1438
955	=cut	1439	=cut
…		…
961	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
962		1446
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1448	}
965		1449
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
967		1451
968	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.
969		1457
970	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
971	called.
972		1459
973	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
974		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
975	sub register_extcmd {	1482	sub register_extcmd($$) {
976	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
977		1484
978	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
979	}	1486	}
980		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
981	cf::player->attach (	1508	cf::player->attach (
982	on_command => sub {	1509	on_unknown_command => sub {
983	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
984		1511
985	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
986	or return;	1513	or return;
987		1514
…		…
992	cf::override;	1519	cf::override;
993	},	1520	},
994	on_extcmd => sub {	1521	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
996		1523
997	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1525
999	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
1002	$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);
1003	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
1004	}	1547	}
		1548
1005	} else {	1549	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1551	}
1008		1552
1009	cf::override;	1553	cf::override;
1010	},	1554	},
1011	);	1555	);
1012		1556
		1557	# "readahead" all extensions
1013	sub load_extension {	1558	sub cache_extensions {
1014	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
1015		1560
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1017	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1564	}
1020	$pkg = "ext::$pkg";	1565	};
1021		1566
1022	warn "... loading '$path' into '$pkg'\n";	1567	$grp
		1568	}
1023		1569
1024	open my $fh, "<:utf8", $path	1570	sub _ext_cfg_reg($$$$) {
1025	or die "$path: $!";	1571	my ($rvar, $varname, $cfgname, $default) = @_;
1026		1572
1027	my $source =	1573	$cfgname = lc $varname
1028	"package $pkg; use strict; use utf8;\n"	1574	unless length $cfgname;
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032		1575
1033	eval $source	1576	$EXT_CFG{$cfgname} = [$rvar, $default];
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036		1577
1037	push @EXTS, $pkg;	1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1038	}	1579	}
1039		1580
1040	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
1041	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1590	next unless -r $path;
1043	eval {	1591
1044	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 $active;
		1663	}
1045	1	1664	}
1046	} or warn "$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 $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
1047	}	1677	};
1048	}	1678	}
1049		1679
1050	#############################################################################	1680	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1681
1053	*cf::mapsupport::on_clean = sub {	1682	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1683
1066	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
1067		1685
1068	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
1069		1687
1070	=cut	1688	=cut
1071		1689
1072	package cf::player;	1690	package cf::player;
1073		1691
…		…
1075		1693
1076	=head3 cf::player	1694	=head3 cf::player
1077		1695
1078	=over 4	1696	=over 4
1079		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
1080	=item cf::player::find $login	1712	=item cf::player::find $login
1081		1713
1082	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
1083		1715
1084	=cut	1716	=cut
1085		1717
1086	sub playerdir($) {	1718	sub playerdir($) {
1087	cf::localdir	1719	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1721	}
1093		1722
1094	sub path($) {	1723	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1725
1097	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
1098	}	1727	}
1099		1728
1100	sub find_active($) {	1729	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
1105		1734
1106	sub exists($) {	1735	sub exists($) {
1107	my ($login) = @_;	1736	my ($login) = @_;
1108		1737
1109	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1739	or !aio_stat path $login
1111	}	1740	}
1112		1741
1113	sub find($) {	1742	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1744	my $login = $_[0];
1116		1745
1117	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
1118		1747
1119	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
1120	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
1121	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;
1122	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
1123	}	1765	}
1124	}	1766	}
1125	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($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	);
1126		1781
1127	sub save($) {	1782	sub save($) {
1128	my ($pl) = @_;	1783	my ($pl) = @_;
1129		1784
1130	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1135	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1136		1791
1137	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1139		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
1140	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1141	Coro::cede;	1801	cf::cede_to_tick;
1142	}	1802	}
1143		1803
1144	sub new($) {	1804	sub new($) {
1145	my ($login) = @_;	1805	my ($login) = @_;
1146		1806
…		…
1152	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1153		1813
1154	$self	1814	$self
1155	}	1815	}
1156		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
1157	=item $pl->quit_character	1827	=item $pl->quit_character
1158		1828
1159	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1161		1831
1162	=cut	1832	=cut
1163		1833
1164	sub quit_character {	1834	sub quit_character {
1165	my ($pl) = @_;	1835	my ($pl) = @_;
1166		1836
		1837	my $name = $pl->ob->name;
		1838
1167	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1168	$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
1169		1841
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1171	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1173	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1174		1850
1175	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1179	$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
1180	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;
1181	}	1877	}
1182		1878
1183	=item cf::player::list_logins	1879	=item cf::player::list_logins
1184		1880
1185	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
1186	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1187		1883
1188	=cut	1884	=cut
1189		1885
1190	sub list_logins {	1886	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1888	or return [];
1193		1889
1194	my @logins;	1890	my @logins;
1195		1891
1196	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") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1200		1902
1201	utf8::decode $login;	1903	utf8::decode $login;
1202	push @logins, $login;	1904	push @logins, $login;
1203	}	1905	}
1204		1906
1205	\@logins	1907	\@logins
1206	}	1908	}
1207		1909
1208	=item $player->maps	1910	=item $player->maps
1209		1911
		1912	=item cf::player::maps $login
		1913
1210	Returns an arrayref of cf::path's of all maps that are private for this	1914	Returns an arrayref of map paths that are private for this
1211	player. May block.	1915	player. May block.
1212		1916
1213	=cut	1917	=cut
1214		1918
1215	sub maps($) {	1919	sub maps($) {
1216	my ($pl) = @_;	1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1923
1218	my $files = aio_readdir playerdir $pl	1924	my $files = aio_readdir playerdir $pl
1219	or return;	1925	or return;
1220		1926
1221	my @paths;	1927	my @paths;
…		…
1223	for (@$files) {	1929	for (@$files) {
1224	utf8::decode $_;	1930	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1931	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1932	next unless /^$PATH_SEP/o;
1227		1933
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1934	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1935	}
1230		1936
1231	\@paths	1937	\@paths
1232	}	1938	}
1233		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1235		1945
1236	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1237		1947
1238	=cut	1948	=cut
1239		1949
1240	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1241	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1242		1952
1243	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1954	}
1247		1955
1248	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	}
1249		1986
1250	=back	1987	=back
1251
1252		1988
1253	=head3 cf::map	1989	=head3 cf::map
1254		1990
1255	=over 4	1991	=over 4
1256		1992
…		…
1259	package cf::map;	1995	package cf::map;
1260		1996
1261	use Fcntl;	1997	use Fcntl;
1262	use Coro::AIO;	1998	use Coro::AIO;
1263		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
1264	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1266		2006
1267	sub generate_random_map {	2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
		2036	my ($self, $merge) = @_;
		2037
		2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
		2041
		2042	$self->SUPER::thawer_merge ($merge);
		2043	}
		2044
		2045	sub normalise {
1268	my ($path, $rmp) = @_;	2046	my ($path, $base) = @_;
1269		2047
1270	# mit "rum" bekleckern, nicht	2048	$path = "$path"; # make sure it's a string
1271	cf::map::_create_random_map (	2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
1272	$path,	2077	$path
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	2078	}
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	2079
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	2080	sub new_from_path {
1276	$rmp->{exit_on_final_map},	2081	my (undef, $path, $base) = @_;
1277	$rmp->{xsize}, $rmp->{ysize},	2082
1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2084
1280	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2085	$path = normalise $path, $base;
1281	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2086
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1284	)	2097	()
1285	}	2098	}
1286		2099
1287	# and all this just because we cannot iterate over	2100	# may re-bless or do other evil things
1288	# all maps in C++...	2101	sub init {
1289	sub change_all_map_light {
1290	my ($change) = @_;	2102	my ($self) = @_;
1291		2103
1292	$_->change_map_light ($change)	2104	$self
1293	for grep $_->outdoor, values %cf::MAP;
1294	}	2105	}
1295		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
1296	sub load_map_header($) {	2157	sub load_header_from($) {
1297	my ($path) = @_;	2158	my ($self, $path) = @_;
1298		2159
1299	utf8::encode $path;	2160	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1301	or return;	2162	or return;
1302		2163
1303	my $map = cf::map::new	2164	$self->_load_header ($f)
1304	or return;	2165	or return;
1305		2166
1306	# for better error messages only, will be overwritten later	2167	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	2168	$f->resolve_delayed_derefs;
1308		2169
1309	$map->load_header ($path)	2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
1310	or return;	2217	or return;
		2218	$self->prepare_orig;
		2219	}
1311		2220
1312	$map->{load_path} = $path;	2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
1313		2223
1314	$map	2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
		2227	1
1315	}	2228	}
1316		2229
1317	sub find;	2230	sub find;
1318	sub find {	2231	sub find {
1319	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1320		2233
1321	#warn "find<$path,$origin>\n";#d#	2234	cf::cede_to_tick;
1322		2235
1323	$path = new cf::path $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1324	my $key = $path->as_string;
1325		2237
1326	cf::lock_wait "map_find:$key";	2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1327
1328	$cf::MAP{$key} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1330		2240
1331	# do it the slow way	2241	$cf::MAP{$path} || do {
1332	my $map = $path->load_temp;	2242	my $map = new_from_path cf::map $path
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2243	or return;
1345		2244
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1358		2246
1359	Coro::cede;	2247	$map->load_header
		2248	or return;
1360		2249
1361	if ($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;
1362	$map->reset;	2255	$map->reset;
1363	undef $guard;
1364	$map = find $path	2256	return find $path;
1365	or return;
1366	}	2257	}
1367		2258
1368	$cf::MAP{$key} = $map	2259	$cf::MAP{$path} = $map
1369	}	2260	}
1370	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1371		2265
1372	sub load {	2266	sub load {
1373	my ($self) = @_;	2267	my ($self) = @_;
1374		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
1375	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2274	my $guard = cf::lock_acquire "map_data:$path";
1377		2275
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1379		2278
1380	$self->in_memory (cf::MAP_LOADING);
1381
1382	$self->alloc;	2279	$self->alloc;
1383	$self->load_objects ($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)
1384	or return;	2288	or return;
1385		2289
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1387	if delete $self->{load_original};	2291	if delete $self->{load_original};
1388		2292
1389	if (my $uniq = $path->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2294	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2297	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1394	}	2302	}
1395	}
1396		2303
1397	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1398		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1399	# now do the right thing for maps	2313	# now do the right thing for maps
1400	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2316	unless $self->difficulty;
1412	$self->activate;	2317	cf::cede_to_tick;
		2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
		2329	}
		2330
		2331	$self->post_load;
		2332
1413	}	2333	1
1414
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);
1418	}	2334	}
1419		2335
1420	# find and load all maps in the 3x3 area around a map	2336	# customize the map for a given player, i.e.
1421	sub load_diag {	2337	# return the _real_ map. used by e.g. per-player
1422	my ($map) = @_;	2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
1423		2341
1424	my @diag; # diagonal neighbours	2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
1425		2344
1426	for (0 .. 3) {	2345	# return find "?party/" . $ob->name . "/" . $self->{path}
1427	my $neigh = $map->tile_path ($_)	2346	# if $self->per_party;
1428	or next;
1429	$neigh = find $neigh, $map
1430	or next;
1431	$neigh->load;
1432		2347
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2348	$self
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}
1436
1437	for (@diag) {
1438	my $neigh = find @$_
1439	or next;
1440	$neigh->load;
1441	}
1442	}	2349	}
1443		2350
1444	sub find_sync {	2351	sub find_sync {
1445	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1446		2353
1447	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, $origin
1448	}	2359	}
1449		2360
1450	sub do_load_sync {	2361	sub do_load_sync {
1451	my ($map) = @_;	2362	my ($map) = @_;
1452		2363
1453	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;
1454	}	2369	}
1455		2370
1456	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
1457	our $MAP_PREFETCHER = Coro::async {	2385	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2386	$Coro::current->{desc} = "map prefetcher";
		2387
1459	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
1462	my $path = delete $MAP_PREFETCH{$key};	2394	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2395	}
1468	Coro::schedule;	2396	}
		2397	undef $MAP_PREFETCHER;
1469	}	2398	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2399	$MAP_PREFETCHER->prio (6);
1484		2400
1485	()	2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2433	}
1486	}	2434	}
1487		2435
1488	sub save {	2436	sub save {
1489	my ($self) = @_;	2437	my ($self) = @_;
1490		2438
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2440
1493	$self->{last_save} = $cf::RUNTIME;	2441	$self->_save;
1494
1495	return unless $self->dirty;
1496
1497	my $save = $self->{path}->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1499
1500	$self->{load_path} = $save;
1501
1502	return if $self->{deny_save};
1503
1504	local $self->{last_access} = $self->last_access;#d#
1505
1506	cf::async {
1507	$_->contr->save for $self->players;
1508	};
1509
1510	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}
1516	}	2442	}
1517		2443
1518	sub swap_out {	2444	sub swap_out {
1519	my ($self) = @_;	2445	my ($self) = @_;
1520		2446
1521	# save first because save cedes
1522	$self->save;
1523
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1526	return if $self->players;	2451	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};
1529		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
1530	$self->clear;	2462	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2463	}
1533		2464
1534	sub reset_at {	2465	sub reset_at {
1535	my ($self) = @_;	2466	my ($self) = @_;
1536		2467
1537	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1540		2470
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2473
…		…
1548	my ($self) = @_;	2478	my ($self) = @_;
1549		2479
1550	$self->reset_at <= $cf::RUNTIME	2480	$self->reset_at <= $cf::RUNTIME
1551	}	2481	}
1552		2482
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2483	sub reset {
1575	my ($self) = @_;	2484	my ($self) = @_;
1576		2485
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2487
1579	return if $self->players;	2488	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2489
1582	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	}
1583		2501
1584	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1585		2503
		2504	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
1587		2507
1588	$self->unlink_save;	2508	$self->unlink_save;
1589	$self->destroy;	2509	$self->destroy;
1590	}	2510	}
1591		2511
1592	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1593		2513
1594	sub nuke {	2514	sub nuke {
1595	my ($self) = @_;	2515	my ($self) = @_;
1596		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};
1597	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
1600	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
1601	}	2534	}
1602		2535
1603	sub customise_for {	2536	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2537
1606	if ($map->per_player) {	2538	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
1608	}	2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
1609		2553
1610	$map	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	]
1611	}	2570	}
1612		2571
1613	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1614		2573
1615	Returns an arrayref of cf::path's of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2575	instantiated unique items. May block.
1617		2576
1618	=cut	2577	=cut
1619		2578
1620	sub unique_maps() {	2579	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1622	or return;	2581	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2582	utf8::decode $_;
1628	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2585	? ()
1631	push @paths, new cf::path $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2588	]
1633
1634	\@paths
1635	}	2589	}
1636		2590
1637	package cf;	2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
1638		2622
1639	=back	2623	=back
1640		2624
1641	=head3 cf::object	2625	=head3 cf::object
1642		2626
…		…
1646		2630
1647	=over 4	2631	=over 4
1648		2632
1649	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1650		2634
1651	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.
1652		2637
1653	=cut	2638	=cut
1654		2639
1655	sub inv_recursive_;	2640	sub inv_recursive_;
1656	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1659		2644
1660	sub inv_recursive {	2645	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1662	}	2647	}
1663		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
1664	package cf;	2677	package cf;
1665		2678
1666	=back	2679	=back
1667		2680
1668	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1674	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>
1675	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
1676	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1677		2690
1678	=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	};
1679		2706
1680	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2708	# with dialog boxes.
1682	#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
1683	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1685		2712
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2714
1688	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1690	} 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 {
1691	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1693	}	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 (@_);
1694	}	2740	}
1695		2741
1696	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1697		2743
1698	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1711		2757
1712	=item $player_object->enter_link	2758	=item $player_object->enter_link
1713		2759
1714	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}>).
1715		2761
1716	The player should be reaosnably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1717	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.
		2766
		2767	Will never block.
1718		2768
1719	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1720		2770
1721	Moves the player out of the specila link map onto the given map. If the	2771	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2772	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2773	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2774	fails, to the emergency map position.
1725		2775
1726	Might block.	2776	Might block.
1727		2777
1728	=cut	2778	=cut
		2779
		2780	sub link_map {
		2781	unless ($LINK_MAP) {
		2782	$LINK_MAP = cf::map::find "{link}"
		2783	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2784	$LINK_MAP->load;
		2785	}
		2786
		2787	$LINK_MAP
		2788	}
1729		2789
1730	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2791	my ($self) = @_;
1732		2792
1733	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1734		2794
1735	return if $self->map == $LINK_MAP;	2795	++$self->{_link_recursion};
		2796
		2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2798
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1739		2801
1740	$self->enter_map ($LINK_MAP, 20, 20);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2803	}
1742		2804
1743	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1745		2809
1746	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1747		2811
1748	unless ($map) {	2812	unless ($map) {
1749	# restore original map position	2813	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1762		2826
1763	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1766		2830
1767	$map->load;	2831	$map->load;
1768	$map->load_diag;
1769		2832
1770	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
1771	$self->activate_recursive;	2840	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2841	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2842
1789	# try to abort aborted map switching on player login :)	2843	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2844
1807	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		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
1809	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1810		2859
1811	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2861	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2862
1814	$path = new cf::path $path;	2863	if ($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;
1815		2871
1816	$self->enter_link;	2872	$self->enter_link;
1817		2873
1818	(async {	2874	(async {
1819	my $map = cf::map::find $path->as_string;	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) {
1820	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
1821		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2902	} else {
1823	# if $map;
1824
1825	$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	}
1826		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};
1827	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1828	})->prio (1);	2920	})->prio (1);
1829	}	2921	}
1830		2922
1831	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1832		2924
…		…
1834		2926
1835	sub parse_random_map_params {	2927	sub parse_random_map_params {
1836	my ($spec) = @_;	2928	my ($spec) = @_;
1837		2929
1838	my $rmp = { # defaults	2930	my $rmp = { # defaults
1839	xsize => 10,	2931	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2932	ysize => (cf::rndm 15, 40),
		2933	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2934	#layout => string,
1841	};	2935	};
1842		2936
1843	for (split /\n/, $spec) {	2937	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2938	my ($k, $v) = split /\s+/, $_, 2;
1845		2939
…		…
1857	# that depends on the exit object	2951	# that depends on the exit object
1858		2952
1859	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
1860		2954
1861	if ($exit->map) {	2955	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2956	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1866	}	2962	}
1867		2963
1868	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1869		2965
1870	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
		2968	my $meta = "$RANDOMDIR/$md5.meta";
1872		2969
1873	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) {
1874	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;
1875		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
1878	}	2981	}
1879	}	2982	}
1880		2983
1881	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
1885		2988
1886	$self->enter_link;	2989	$self->enter_link;
1887		2990
1888	(async {	2991	(async {
1889	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
1890	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
1891	prepare_random_map $exit	3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
1892	if $exit->slaying eq "/!";	3011	$map = $exit->slaying;
1893		3012
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3013	} elsif ($slaying eq '!up') {
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
1896		3017
		3018	} elsif ($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
1897	1;	3030	1
1898	}) {	3031	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "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. "
1901	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
1903		3036
1904	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
1905	$self->leave_link;	3038	$self->leave_link;
1906	}	3039	}
1907	})->prio (1);	3040	})->prio (1);
1908	}	3041	}
1909		3042
1910	=head3 cf::client	3043	=head3 cf::client
1911		3044
1912	=over 4	3045	=over 4
1913		3046
1914	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1915		3048
1916	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1917	should not be used under normal circumstances.	3050	them as required.
1918		3051
1919	=cut	3052	=cut
1920		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" => $CHAT_CHANNEL,
		3199	);
		3200
1921	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($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($$@) {
1922	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1923		3248
1924	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1926	}	3250	}
1927
1928		3251
1929	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1930		3253
1931	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1932	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>,
1933	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>.
1934		3257
1935	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
1936	reliable at some point in the future.	3259	become reliable at some point in the future.
1937		3260
1938	=cut	3261	=cut
1939		3262
1940	sub cf::client::query {	3263	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3272	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3274
1952	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
1953	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;
1954	}	3317	}
1955		3318
1956	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	},
1957	on_reply => sub {	3325	on_reply => sub {
1958	my ($ns, $msg) = @_;	3326	my ($ns, $msg) = @_;
1959		3327
1960	# this weird shuffling is so that direct followup queries	3328	# this weird shuffling is so that direct followup queries
1961	# get handled first	3329	# get handled first
1962	my $queue = delete $ns->{query_queue}	3330	my $queue = delete $ns->{query_queue}
1963	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
1964		3332
1965	(shift @$queue)->[1]->($msg);	3333	(shift @$queue)->[1]->($msg);
		3334	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3335
1967	push @{ $ns->{query_queue} }, @$queue;	3336	push @{ $ns->{query_queue} }, @$queue;
1968		3337
1969	if (@{ $ns->{query_queue} } == @$queue) {	3338	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3339	if (@$queue) {
…		…
1972	} else {	3341	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3342	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3343	}
1975	}	3344	}
1976	},	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	},
1977	);	3379	);
1978		3380
1979	=item $client->async (\&cb)	3381	=item $client->async (\&cb)
1980		3382
1981	Create a new coroutine, running the specified callback. The coroutine will	3383	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3399
1998	$coro	3400	$coro
1999	}	3401	}
2000		3402
2001	cf::client->attach (	3403	cf::client->attach (
2002	on_destroy => sub {	3404	on_client_destroy => sub {
2003	my ($ns) = @_;	3405	my ($ns) = @_;
2004		3406
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3407	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3408	},
2007	);	3409	);
…		…
2022	our $safe = new Safe "safe";	3424	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3425	our $safe_hole = new Safe::Hole;
2024		3426
2025	$SIG{FPE} = 'IGNORE';	3427	$SIG{FPE} = 'IGNORE';
2026		3428
2027	$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	));
2028		3434
2029	# here we export the classes and methods available to script code	3435	# here we export the classes and methods available to script code
2030		3436
2031	=pod	3437	=pod
2032		3438
2033	The following fucntions and emthods are available within a safe environment:	3439	The following functions and methods are available within a safe environment:
2034		3440
2035	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
2036	cf::object::player player	3446	cf::object::player
2037	cf::player peaceful	3447	player
2038	cf::map trigger	3448
		3449	cf::player
		3450	peaceful
		3451
		3452	cf::map
		3453	trigger
2039		3454
2040	=cut	3455	=cut
2041		3456
2042	for (	3457	for (
2043	["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)],
2044	["cf::object::player" => qw(player)],	3461	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3462	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3463	["cf::map" => qw(trigger)],
2047	) {	3464	) {
2048	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3465	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3466	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2051	for @funs;	3467	for @funs;
2052	}	3468	}
2053		3469
…		…
2068		3484
2069	my $qcode = $code;	3485	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3486	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3487	$qcode =~ s/\n/\\n/g;
2072		3488
		3489	%vars = (_dummy => 0) unless %vars;
		3490
		3491	my @res;
2073	local $_;	3492	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3493
2076	my $eval =	3494	my $eval =
2077	"do {\n"	3495	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3496	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3497	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3498	. $code
2081	. "\n}"	3499	. "\n}"
2082	;	3500	;
2083		3501
		3502	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3503	sub_generation_inc;
		3504	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3505	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	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	}
2087		3511
2088	if ($@) {	3512	if ($@) {
2089	warn "$@";	3513	warn "$@",
2090	warn "while executing safe code '$code'\n";	3514	"while executing safe code '$code'\n",
2091	warn "with arguments " . (join " ", %vars) . "\n";	3515	"with arguments " . (join " ", %vars) . "\n";
2092	}	3516	}
2093		3517
2094	wantarray ? @res : $res[0]	3518	wantarray ? @res : $res[0]
2095	}	3519	}
2096		3520
…		…
2110	=cut	3534	=cut
2111		3535
2112	sub register_script_function {	3536	sub register_script_function {
2113	my ($fun, $cb) = @_;	3537	my ($fun, $cb) = @_;
2114		3538
2115	no strict 'refs';	3539	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3540	*$fun = $safe_hole->wrap ($cb);
2117	}	3541	}
2118		3542
2119	=back	3543	=back
2120		3544
2121	=cut	3545	=cut
2122		3546
2123	#############################################################################	3547	#############################################################################
2124		3548	# the server's init and main functions
2125	=head2 EXTENSION DATABASE SUPPORT
2126
2127	Crossfire maintains a very simple database for extension use. It can
2128	currently store anything that can be serialised using Storable, which
2129	excludes objects.
2130
2131	The parameter C<$family> should best start with the name of the extension
2132	using it, it should be unique.
2133
2134	=over 4
2135
2136	=item $hashref = cf::db_get $family
2137
2138	Return a hashref for use by the extension C<$family>, which can be
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141
2142	=item $value = cf::db_get $family => $key
2143
2144	Returns a single value from the database
2145
2146	=item cf::db_put $family => $hashref
2147
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167		3549
2168	{	3550	{
2169	my $path = cf::localdir . "/database.pst";	3551	package cf::face;
2170		3552
2171	sub db_load() {	3553	our %HASH; # hash => idx
2172	$DB = stat $path ? Storable::retrieve $path : { };	3554	our @DATA; # dynamically-created facedata, only faceste 0 used
2173	}	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
2174		3559
2175	my $pid;	3560	# internal api, not finalised
		3561	sub set {
		3562	my ($name, $type, $data) = @_;
2176		3563
2177	sub db_save() {	3564	my $idx = cf::face::find $name;
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186		3565
2187	my $dirty;	3566	if ($idx) {
2188		3567	delete $HASH{cf::face::get_csum $idx};
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});
2197
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {
2204	@_ >= 2
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208
2209	sub db_put($$;$) {
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {	3568	} else {
2213	$DB->{$_[0]} = $_[1];	3569	$idx = cf::face::alloc $name;
2214	}
2215	db_dirty;
2216	}
2217
2218	cf::global->attach (
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	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]
2223	);	3751	);
2224	}	3752	}
2225		3753
2226	#############################################################################	3754	sub reload_materials {
2227	# the server's main()	3755	_reload_materials;
		3756	}
2228		3757
2229	sub cfg_load {	3758	sub reload_regions {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3759	# HACK to clear player env face cache, we need some signal framework
2231	or return;	3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
2232		3762
2233	local $/;	3763	load_resource_file "$MAPDIR/regions"
2234	*CFG = YAML::Syck::Load <$fh>;	3764	or die "unable to load regions file\n";
2235		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
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3854	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2237		3855
2238	$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};
2239	$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};
2240		3858
2241	if (exists $CFG{mlockall}) {	3859	if (exists $CFG{mlockall}) {
…		…
2245	};	3863	};
2246	warn $@ if $@;	3864	warn $@ if $@;
2247	}	3865	}
2248	}	3866	}
2249		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
2250	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
2251	# we must not ever block the main coroutine	3906	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3907	$Coro::idle = sub {
2253	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#
2254	async { Event::one_event };	3909	(async {
		3910	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3911	EV::loop EV::LOOP_ONESHOT;
		3912	})->prio (Coro::PRIO_MAX);
2255	};	3913	};
2256		3914
2257	cfg_load;	3915	evthread_start IO::AIO::poll_fileno;
2258	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
2259	load_extensions;	3939	load_extensions;
2260	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;
2261	}	3958	}
2262		3959
2263	#############################################################################	3960	#############################################################################
2264	# initialisation and cleanup	3961	# initialisation and cleanup
2265		3962
2266	# install some emergency cleanup handlers	3963	# install some emergency cleanup handlers
2267	BEGIN {	3964	BEGIN {
		3965	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3966	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3967	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3968	cf::cleanup "SIG$signal";
2274	},
2275	);	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
2276	}	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 };
2277	}	4059	}
2278		4060
2279	sub emergency_save() {	4061	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	4062	my $freeze_guard = cf::freeze_mainloop;
2281		4063
2282	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;
2283		4070
2284	cf::sync_job {	4071	cf::sync_job {
		4072	cf::write_runtime_sync; # external watchdog should not bark
		4073
2285	# use a peculiar iteration method to avoid tripping on perl	4074	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	4075	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	4076	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	4077	info "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	4078	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	4079	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	4080	$pl->valid or next;
		4081	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	4082	$pl->save;
2293	}	4083	}
2294	warn "end emergency player save\n";	4084	info "emergency_perl_save: end player save\n";
2295		4085
2296	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";
2297	for my $path (keys %cf::MAP) {	4089	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	4090	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	4091	$map->valid or next;
2300	$map->save;	4092	$map->save;
2301	}	4093	}
2302	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
2303	};	4124	};
2304		4125
2305	warn "leave emergency perl save\n";	4126	info "emergency_perl_save: leave\n";
2306	}	4127	}
2307		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
2308	sub reload() {	4166	sub do_reload_perl() {
2309	# can/must only be called in main	4167	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	4168	unless (in_main) {
2311	warn "can only reload from main coroutine\n";	4169	error "can only reload from main coroutine";
2312	return;	4170	return;
2313	}	4171	}
2314		4172
2315	warn "reloading...";	4173	return if $RELOAD++;
2316		4174
2317	warn "freezing server";	4175	my $t1 = AE::time;
2318	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 {
2319	cf::emergency_save;	4184	#cf::emergency_save;
2320		4185
2321	warn "sync database to disk";	4186	trace "perl_reload: cancelling all extension coros";
2322	cf::db_sync;
2323	IO::AIO::flush;
2324
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved
2327
2328	warn "cancel all watchers";
2329	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;	4187	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	4188	%EXT_CORO = ();
2336		4189
2337	warn "remove commands";	4190	trace "perl_reload: removing commands";
2338	%COMMAND = ();	4191	%COMMAND = ();
2339		4192
2340	warn "remove ext commands";	4193	trace "perl_reload: removing ext/exti commands";
2341	%EXTCMD = ();	4194	%EXTCMD = ();
		4195	%EXTICMD = ();
2342		4196
2343	warn "unload/nuke all extensions";	4197	trace "perl_reload: unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	4198	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	4199	trace "... unloading $pkg";
2346		4200
2347	if (my $cb = $pkg->can ("unload")) {	4201	if (my $cb = $pkg->can ("unload")) {
2348	eval {	4202	eval {
2349	$cb->($pkg);	4203	$cb->($pkg);
2350	1	4204	1
2351	} 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;
2352	}	4210	}
2353		4211
2354	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357
2358	warn "unload all perl modules loaded from $LIBDIR";	4212	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	4213	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4214	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		4215
2362	warn "removing <$k>";	4216	trace "... unloading $k";
2363	delete $INC{$k};	4217	delete $INC{$k};
2364		4218
2365	$k =~ s/\.pm$//;	4219	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	4220	$k =~ s/\//::/g;
2367		4221
2368	if (my $cb = $k->can ("unload_module")) {	4222	if (my $cb = $k->can ("unload_module")) {
2369	$cb->();	4223	$cb->();
		4224	}
		4225
		4226	clear_package $k;
2370	}	4227	}
2371		4228
2372	Symbol::delete_package $k;
2373	}
2374
2375	warn "get rid of safe::, as good as possible";	4229	trace "perl_reload: getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	4230	clear_package "safe::$_"
2377	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);
2378		4232
2379	warn "unload cf.pm \"a bit\"";	4233	trace "perl_reload: unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	4234	delete $INC{"cf.pm"};
		4235	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		4236
2382	# don't, removes xs symbols, too,	4237	# don't, removes xs symbols, too,
2383	# and global variables created in xs	4238	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	4239	#clear_package __PACKAGE__;
2385		4240
2386	warn "reloading cf.pm";	4241	info "perl_reload: unload completed, starting to reload now";
		4242
		4243	trace "perl_reload: reloading cf.pm";
2387	require cf;	4244	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4245	cf::_connect_to_perl_1;
2389		4246
2390	warn "load config and database again";	4247	trace "perl_reload: loading config and database again";
2391	cf::cfg_load;	4248	cf::reload_config;
2392	cf::db_load;
2393		4249
2394	warn "load extensions";	4250	trace "perl_reload: loading extensions";
2395	cf::load_extensions;	4251	cf::load_extensions;
2396		4252
		4253	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	4254	trace "perl_reload: reattaching attachments to objects/players";
2398	_global_reattach;	4255	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	4256	trace "perl_reload: reattaching attachments to maps";
2400	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 $RELOAD_WATCHER;
		4291	};
2401	};	4292	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	4293	}
2454		4294
2455	register_command "reload" => sub {	4295	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	4296	my ($who, $arg) = @_;
2457		4297
2458	if ($who->flag (FLAG_WIZ)) {	4298	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	4299	$who->message ("reloading server.");
		4300	async {
		4301	$Coro::current->{desc} = "perl_reload";
		4302	reload_perl;
		4303	};
2462	}	4304	}
2463	};	4305	};
2464		4306
2465	unshift @INC, $LIBDIR;	4307	#############################################################################
2466		4308
2467	$TICK_WATCHER = Event->timer (	4309	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		4310
2475	cf::server_tick; # one server iteration	4311	sub wait_for_tick() {
2476	$RUNTIME += $TICK;	4312	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2477	$NEXT_TICK += $TICK;
2478		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	}
2479	$WAIT_FOR_TICK->broadcast;	4348	$WAIT_FOR_TICK->broadcast;
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		4349
2482	# if we are delayed by four ticks or more, skip them all	4350	$LOAD = ($NOW - $TICK_START) / $TICK;
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4351	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2484		4352
2485	$TICK_WATCHER->at ($NEXT_TICK);	4353	if (0) {
2486	$TICK_WATCHER->start;	4354	if ($NEXT_TICK) {
		4355	my $jitter = $TICK_START - $NEXT_TICK;
		4356	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4357	debug "jitter $JITTER\n";#d#
		4358	}
2487	},	4359	}
2488	);	4360	}
2489		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;
2490	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	}
2491		4416
2492	Event->io (	4417	our $_log_backtrace;
2493	fd => IO::AIO::poll_fileno,	4418	our $_log_backtrace_last;
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499		4419
2500	Event->timer (	4420	sub _log_backtrace {
2501	data => WF_AUTOCANCEL,	4421	my ($msg, @addr) = @_;
2502	after => 0,	4422
2503	interval => 10,	4423	$msg =~ s/\n$//;
2504	cb => sub {	4424
2505	(Coro::unblock_sub {	4425	if ($_log_backtrace_last eq $msg) {
2506	write_runtime	4426	LOG llevInfo, "[ABT] $msg\n";
2507	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;
2508	})->();	4457	};
		4458	} else {
		4459	LOG llevInfo, "[ABT] $msg\n";
		4460	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2509	},	4461	}
2510	);	4462	}
		4463
		4464	# load additional modules
		4465	require "cf/$_.pm" for @EXTRA_MODULES;
		4466	cf::_connect_to_perl_2;
2511		4467
2512	END { cf::emergency_save }	4468	END { cf::emergency_save }
2513		4469
2514	1	4470	1
2515		4471

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