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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.616 by root, Mon Aug 10 03:05:30 2015 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		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 = ();
		88
		89	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
39		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	98	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
42		101
43	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
44	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
45	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;
46	our $NOW;	144	our $NOW;
47		145
48	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
49		149
50	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
51	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		152
53	our %PLAYER; # all users	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
54	our %MAP; # all maps	154	our $LOADAVG; # same thing, but with alpha-smoothing
55	our $LINK_MAP; # the special {link} map	155	our $JITTER; # average jitter
56	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
57	our %EXT_CORO; # coroutines bound to extensions
58		157
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	158	our @POST_INIT;
60	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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
61		165
62	binmode STDOUT;	166	binmode STDOUT;
63	binmode STDERR;	167	binmode STDERR;
64		168
65	# read virtual server time, if available	169	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
70	}	174	}
71		175
72	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		177
78	# a special map that is always available	178	mkdir $_
79	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
80	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
81		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
82	#############################################################################	189	#############################################################################
83		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
84	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
85		203
86	=over 4	204	=over 4
87		205
88	=item $cf::UPTIME	206	=item $cf::UPTIME
89		207
90	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.
91		224
92	=item $cf::RUNTIME	225	=item $cf::RUNTIME
93		226
94	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
95	every server tick.	228	every server tick.
96		229
97	=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
98		233
99	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		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
102	=item $cf::NOW	245	=item $cf::LOAD
103		246
104	The time of the last (current) server tick.	247	The raw value load value from the last tick.
105
106	=item $cf::TICK
107
108	The interval between server ticks, in seconds.
109		248
110	=item %cf::CFG	249	=item %cf::CFG
111		250
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	252	from wherever your confdir points to.
114		253
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		255
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
119	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
120	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
121		289
122	=back	290	=back
123		291
124	=cut	292	=cut
125		293
126	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
127	*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 {
128	my $msg = join "", @_;	301	my $msg = join "", @_;
129	utf8::encode $msg;
130		302
131	$msg .= "\n"	303	$msg .= "\n"
132	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
133		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
134	LOG llevError, $msg;	308	LOG llevWarn, $msg;
135	};	309	};
136	}	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	};
137		324
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		332
145	# 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
146	# within the Safe compartment.	334	# within the Safe compartment.
147	for my $pkg (qw(	335	for my $pkg (qw(
148	cf::global cf::attachable	336	cf::global cf::attachable
149	cf::object cf::object::player	337	cf::object cf::object::player
150	cf::client cf::player	338	cf::client cf::player
151	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
152	cf::map cf::party cf::region	341	cf::party cf::region
153	)) {	342	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	344	}
157		345
158	$Event::DIED = sub {	346	$EV::DIED = sub {
159	warn "error in event callback: @_";	347	warn "error in event callback: $@";
160	};	348	};
161		349
162	my %ext_pkg;	350	#############################################################################
163	my @exts;	351
164	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
165		356
166	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
167		358
168	=over 4	359	=over 4
169		360
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	380	$d
190	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
191	}	382	}
192		383
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
194		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
195	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
196		437
197	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
198		439
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
207		441
208	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
209		443
210	=cut	444	=cut
211		445
212	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
214	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
215	}	511	}
216		512
217	=item cf::lock_wait $string	513	=item cf::lock_wait $string
218		514
219	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
220		516
221	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
222		518
223	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
226	returned.	522	returned.
227		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
228	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
230		529
231	=cut	530	=item $locked = cf::lock_active $string
232		531
233	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
234		537
235	sub lock_wait($) {	538	sub lock_wait($) {
236	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	540	}
244		541
245	sub lock_acquire($) {	542	sub lock_acquire($) {
246	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
247		545
248	# wait, to be sure we are not locked	546	sub lock_active($) {
249	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	548	}
258		549
259	sub freeze_mainloop {	550	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
261		552
262	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	554	}
264	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
265	}	639	}
266		640
267	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
268		642
269	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		648
275	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
276		650
277	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
278		652
279	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
282		657
283	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
286	fast or be very important.	661	fast or be very important.
…		…
288	=cut	663	=cut
289		664
290	sub sync_job(&) {	665	sub sync_job(&) {
291	my ($job) = @_;	666	my ($job) = @_;
292		667
293	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
294	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
296		673
297	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	675
299	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
300		677
301	my $busy = 1;	678	my $busy = 1;
302	my @res;	679	my @res;
303		680
304	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	683	@res = eval { $job->() };
306	warn $@ if $@;	684	error $@ if $@;
307	undef $busy;	685	undef $busy;
308	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
309		687
310	while ($busy) {	688	while ($busy) {
311	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::run EV::RUN_ONESHOT;
312	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
313		699
314	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
315	} else {	701	} else {
316	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
317		703
…		…
319	}	705	}
320	}	706	}
321		707
322	=item $coro = cf::async_ext { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
323		709
324	Like async, but this coro is automcatially being canceled when the	710	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	711	extension calling this is being unloaded.
326		712
327	=cut	713	=cut
328		714
329	sub async_ext(&) {	715	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
338		724
339	$coro	725	$coro
340	}	726	}
341		727
342	sub write_runtime {	728	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		729
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
346	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.
347		734
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		736
352	aio_fsync $fh	737	sub post_fork {
353	and return;	738	reset_signals;
		739	}
354		740
355	close $fh	741	sub fork_call(&@) {
356	or return;	742	my ($cb, @args) = @_;
357		743
358	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
359	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
360		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
361	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 });
362	}	927	}
363		928
364	=back	929	=back
365		930
366	=cut	931	=cut
367		932
368	#############################################################################	933	#############################################################################
369		934
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494
495	#############################################################################
496
497	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
498		936
499	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
500	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")
501	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
502		940
503	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>
504	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
505	crossfire+).	943	Deliantra).
506		944
507	=over 4	945	=over 4
508		946
509	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
510		948
…		…
554	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
555		993
556	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
557	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
558		996
559	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
560	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.
561		999
562	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
563		1001
564	=over 4	1002	=over 4
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	1063	our @CB_MAP = ();
626		1064
627	my %attachment;	1065	my %attachment;
628		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
629	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
631		1075
632	use sort 'stable';	1076	use sort 'stable';
633		1077
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
668		1112
669	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		1117
674	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
676		1120
677	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
682		1126
683	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
684	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
685		1129
686	} elsif (ref $type) {	1130	} elsif (ref $type) {
687	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
688		1132
689	} else {	1133	} else {
690	shift @arg;	1134	shift @arg;
691	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
692	}	1136	}
693	}	1137	}
694	}	1138	}
695		1139
696	sub _object_attach {	1140	sub _object_attach {
…		…
706	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
707	}	1151	}
708		1152
709	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
710	} else {	1154	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
712	}	1156	}
713		1157
714	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
715	}	1159	}
716		1160
…		…
718	if (ref $_[0]) {	1162	if (ref $_[0]) {
719	_object_attach @_;	1163	_object_attach @_;
720	} else {	1164	} else {
721	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
722	}	1166	}
		1167	_recalc_want;
723	};	1168	};
724		1169
725	# all those should be optimised	1170	# all those should be optimised
726	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
731	reattach ($obj);	1176	reattach ($obj);
732	} else {	1177	} else {
733	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
734	}	1179	}
		1180	_recalc_want;
735	};	1181	};
736		1182
737	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
739		1185
…		…
754	";	1200	";
755	die if $@;	1201	die if $@;
756	}	1202	}
757		1203
758	our $override;	1204	our $override;
759	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?
760		1206
761	sub override {	1207	sub override {
762	$override = 1;	1208	$override = 1;
763	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
764	}	1210	}
765		1211
766	sub do_invoke {	1212	sub do_invoke {
767	my $event = shift;	1213	my $event = shift;
768	my $callbacks = shift;	1214	my $callbacks = shift;
769		1215
770	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
771		1217
772	local $override;	1218	local $override;
773		1219
774	for (@$callbacks) {	1220	for (@$callbacks) {
775	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
776		1222
777	if ($@) {	1223	if ($@) {
778	warn "$@";
779	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
780	override;	1225	override;
781	}	1226	}
782		1227
783	return 1 if $override;	1228	return 1 if $override;
784	}	1229	}
785		1230
786	0	1231	0
787	}	1232	}
788		1233
789	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
790		1235
791	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
792		1237
793	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
794		1239
795	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
796	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
797	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		1243
799	=back	1244	=back
800		1245
801	=cut	1246	=cut
802		1247
803	#############################################################################	1248	#############################################################################
804	# 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	}
805		1292
806	sub reattach {	1293	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
808	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
809		1299
810	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
811		1301
812	@$registry = ();	1302	@$registry = ();
813		1303
…		…
818	for (@$attach) {	1308	for (@$attach) {
819	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
820	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
821	}	1311	}
822	} else {	1312	} else {
823	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
824	}	1314	}
825	}	1315	}
826	}	1316	}
827		1317
828	cf::attachable->attach (	1318	cf::attachable->attach (
829	prio => -1000000,	1319	prio => -1000000,
830	on_instantiate => sub {	1320	on_instantiate => sub {
831	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
832		1322
833	$data = from_json $data;	1323	$data = decode_json $data;
834		1324
835	for (@$data) {	1325	for (@$data) {
836	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
837		1327
838	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
854	sub object_freezer_save {	1344	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
856		1346
857	sync_job {	1347	sync_job {
858	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
861		1353
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
864	aio_write $fh, 0, (length $$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;
865	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
866	close $fh;	1361	aio_close $fh;
867		1362
868	if (@$objs) {	1363	if (@$objs) {
869	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) {
870	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
872	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;
873	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
874	close $fh;	1372	aio_close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
876	}	1374	}
877	} else {	1375	} else {
878	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
879	}	1377	}
880		1378
881	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
882	} else {	1383	} else {
883	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
884	}	1385	}
885	} else {	1386	} else {
886	aio_unlink $filename;	1387	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
888	}	1389	}
889	}	1390	};
890	}	1391	}
891		1392
892	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
894		1395
…		…
906	or return;	1407	or return;
907		1408
908	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
910	or return;	1411	or return;
		1412
911	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
912	}	1415	}
913		1416
		1417	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
916	return ($data, $av);	1422	($data, $av)
917	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
918		1430
919	#############################################################################	1431	#############################################################################
920	# command handling &c	1432	# command handling &c
921		1433
922	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
923		1435
924	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
925	$name.	1437	$name.
926		1438
927	=cut	1439	=cut
…		…
933	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
934		1446
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1448	}
937		1449
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
939		1451
940	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.
941		1457
942	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
943	called.
944		1459
945	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
946		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
947	sub register_extcmd {	1482	sub register_extcmd($$) {
948	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
949		1484
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
954	}	1486	}
		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
955		1507
956	cf::player->attach (	1508	cf::player->attach (
957	on_command => sub {	1509	on_unknown_command => sub {
958	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
959		1511
960	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
961	or return;	1513	or return;
962		1514
…		…
967	cf::override;	1519	cf::override;
968	},	1520	},
969	on_extcmd => sub {	1521	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
971		1523
972	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1525
974	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
977	$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);
978	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
979	}	1547	}
		1548
980	} else {	1549	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1551	}
983		1552
984	cf::override;	1553	cf::override;
985	},	1554	},
986	);	1555	);
987		1556
988	sub register {	1557	# "readahead" all extensions
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {	1558	sub cache_extensions {
995	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
996		1560
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
998	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
999	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}	1564	}
1047	}	1565	};
1048		1566
1049	# remove extcmds	1567	$grp
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1568	}
1051	delete $EXTCMD{$name};
1052	}
1053		1569
1054	if (my $cb = $pkg->can ("unload")) {	1570	sub _ext_cfg_reg($$$$) {
1055	eval {	1571	my ($rvar, $varname, $cfgname, $default) = @_;
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060		1572
1061	Symbol::delete_package $pkg;	1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1062	}	1579	}
1063		1580
1064	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
1065	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1590	next unless -r $path;
1067	eval {	1591
1068	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 $active;
		1663	}
1069	1	1664	}
1070	} or warn "$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 $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
1071	}	1677	};
1072	}	1678	}
1073		1679
1074	#############################################################################	1680	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1681
1077	*cf::mapsupport::on_clean = sub {	1682	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1683
1090	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
1091		1685
1092	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
1093		1687
1094	=cut	1688	=cut
1095		1689
1096	package cf::player;	1690	package cf::player;
1097		1691
…		…
1099		1693
1100	=head3 cf::player	1694	=head3 cf::player
1101		1695
1102	=over 4	1696	=over 4
1103		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
1104	=item cf::player::find $login	1712	=item cf::player::find $login
1105		1713
1106	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
1107		1715
1108	=cut	1716	=cut
1109		1717
1110	sub playerdir($) {	1718	sub playerdir($) {
1111	cf::localdir	1719	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1721	}
1117		1722
1118	sub path($) {	1723	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1725
1121	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
1122	}	1727	}
1123		1728
1124	sub find_active($) {	1729	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
1129		1734
1130	sub exists($) {	1735	sub exists($) {
1131	my ($login) = @_;	1736	my ($login) = @_;
1132		1737
1133	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1739	or !aio_stat path $login
1135	}	1740	}
1136		1741
1137	sub find($) {	1742	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1744	my $login = $_[0];
1140		1745
1141	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
1142		1747
1143	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
1144	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
1145	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;
1146	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
1147	}	1765	}
1148	}	1766	}
1149	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($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	);
1150		1781
1151	sub save($) {	1782	sub save($) {
1152	my ($pl) = @_;	1783	my ($pl) = @_;
1153		1784
1154	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1159	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1160		1791
1161	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1163		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
1164	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1165	Coro::cede;	1801	cf::cede_to_tick;
1166	}	1802	}
1167		1803
1168	sub new($) {	1804	sub new($) {
1169	my ($login) = @_;	1805	my ($login) = @_;
1170		1806
…		…
1176	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1177		1813
1178	$self	1814	$self
1179	}	1815	}
1180		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
1181	=item $pl->quit_character	1827	=item $pl->quit_character
1182		1828
1183	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1184	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1185		1831
1186	=cut	1832	=cut
1187		1833
1188	sub quit_character {	1834	sub quit_character {
1189	my ($pl) = @_;	1835	my ($pl) = @_;
1190		1836
		1837	my $name = $pl->ob->name;
		1838
1191	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1192	$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
1193		1841
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1195	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1196	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1197	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1198		1850
1199	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1203	$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
1204	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;
1205	}	1877	}
1206		1878
1207	=item cf::player::list_logins	1879	=item cf::player::list_logins
1208		1880
1209	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
1210	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1211		1883
1212	=cut	1884	=cut
1213		1885
1214	sub list_logins {	1886	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1888	or return [];
1217		1889
1218	my @logins;	1890	my @logins;
1219		1891
1220	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") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1224		1902
1225	utf8::decode $login;	1903	utf8::decode $login;
1226	push @logins, $login;	1904	push @logins, $login;
1227	}	1905	}
1228		1906
1229	\@logins	1907	\@logins
1230	}	1908	}
1231		1909
1232	=item $player->maps	1910	=item $player->maps
1233		1911
		1912	=item cf::player::maps $login
		1913
1234	Returns an arrayref of cf::path's of all maps that are private for this	1914	Returns an arrayref of map paths that are private for this
1235	player. May block.	1915	player. May block.
1236		1916
1237	=cut	1917	=cut
1238		1918
1239	sub maps($) {	1919	sub maps($) {
1240	my ($pl) = @_;	1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1923
1242	my $files = aio_readdir playerdir $pl	1924	my $files = aio_readdir playerdir $pl
1243	or return;	1925	or return;
1244		1926
1245	my @paths;	1927	my @paths;
…		…
1247	for (@$files) {	1929	for (@$files) {
1248	utf8::decode $_;	1930	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1931	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1932	next unless /^$PATH_SEP/o;
1251		1933
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1934	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1935	}
1254		1936
1255	\@paths	1937	\@paths
1256	}	1938	}
1257		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1259		1945
1260	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1261		1947
1262	=cut	1948	=cut
1263		1949
1264	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1265	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1266		1952
1267	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1954	}
1271		1955
1272	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	}
1273		1986
1274	=back	1987	=back
1275
1276		1988
1277	=head3 cf::map	1989	=head3 cf::map
1278		1990
1279	=over 4	1991	=over 4
1280		1992
…		…
1283	package cf::map;	1995	package cf::map;
1284		1996
1285	use Fcntl;	1997	use Fcntl;
1286	use Coro::AIO;	1998	use Coro::AIO;
1287		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
1288	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1290		2006
1291	sub generate_random_map {	2007	sub generate_random_map {
		2008	my ($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 {
1292	my ($path, $rmp) = @_;	2046	my ($path, $base) = @_;
1293		2047
1294	# mit "rum" bekleckern, nicht	2048	$path = "$path"; # make sure it's a string
1295	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
1296	$path,	2077	$path
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region})
1308	}	2078	}
1309		2079
1310	# and all this just because we cannot iterate over	2080	sub new_from_path {
1311	# all maps in C++...	2081	my (undef, $path, $base) = @_;
1312	sub change_all_map_light {	2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
1313	my ($change) = @_;	2102	my ($self) = @_;
1314		2103
1315	$_->change_map_light ($change)	2104	$self
1316	for grep $_->outdoor, values %cf::MAP;
1317	}	2105	}
1318		2106
		2107	sub as_string {
		2108	my ($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
1319	sub try_load_header($) {	2157	sub load_header_from($) {
1320	my ($path) = @_;	2158	my ($self, $path) = @_;
1321		2159
1322	utf8::encode $path;	2160	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1324	or return;	2162	or return;
1325		2163
1326	my $map = cf::map::new	2164	$self->_load_header ($f)
1327	or return;	2165	or return;
1328		2166
1329	# for better error messages only, will be overwritten	2167	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	2168	$f->resolve_delayed_derefs;
1331		2169
1332	$map->load_header ($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
1333	or return;	2217	or return;
		2218	$self->prepare_orig;
		2219	}
1334		2220
1335	$map->{load_path} = $path;	2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
1336		2223
1337	$map	2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
		2227	1
1338	}	2228	}
1339		2229
1340	sub find;	2230	sub find;
1341	sub find {	2231	sub find {
1342	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1343		2233
1344	#warn "find<$path,$origin>\n";#d#	2234	cf::cede_to_tick;
1345		2235
1346	$path = new cf::path $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1347	my $key = $path->as_string;
1348		2237
1349	cf::lock_wait "map_find:$key";	2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1350
1351	$cf::MAP{$key} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1353		2240
1354	# do it the slow way	2241	$cf::MAP{$path} || do {
1355	my $map = try_load_header $path->save_path;	2242	my $map = new_from_path cf::map $path
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	2243	or return;
1373		2244
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1386		2246
1387	Coro::cede;	2247	$map->load_header
		2248	or return;
1388		2249
1389	if ($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;
1390	$map->reset;	2255	$map->reset;
1391	undef $guard;
1392	$map = find $path	2256	return find $path;
1393	or return;
1394	}	2257	}
1395		2258
1396	$cf::MAP{$key} = $map	2259	$cf::MAP{$path} = $map
1397	}	2260	}
1398	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1399		2265
1400	sub load {	2266	sub load {
1401	my ($self) = @_;	2267	my ($self) = @_;
1402		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
1403	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2274	my $guard = cf::lock_acquire "map_data:$path";
1405		2275
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1407		2278
1408	$self->in_memory (cf::MAP_LOADING);
1409
1410	$self->alloc;	2279	$self->alloc;
1411	$self->load_objects ($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)
1412	or return;	2288	or return;
1413		2289
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1415	if delete $self->{load_original};	2291	if delete $self->{load_original};
1416		2292
1417	if (my $uniq = $path->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	2294	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	2297	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1422	}	2302	}
1423	}
1424		2303
1425	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1426		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1427	# now do the right thing for maps	2313	# now do the right thing for maps
1428	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	2316	unless $self->difficulty;
1440	$self->activate;	2317	cf::cede_to_tick;
		2318
		2319	unless ($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
1441	}	2333	1
1442
1443	Coro::cede;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2334	}
1447		2335
1448	# find and load all maps in the 3x3 area around a map	2336	# customize the map for a given player, i.e.
1449	sub load_diag {	2337	# return the _real_ map. used by e.g. per-player
1450	my ($map) = @_;	2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
1451		2341
1452	my @diag; # diagonal neighbours	2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
1453		2344
1454	for (0 .. 3) {	2345	# return find "?party/" . $ob->name . "/" . $self->{path}
1455	my $neigh = $map->tile_path ($_)	2346	# if $self->per_party;
1456	or next;
1457	$neigh = find $neigh, $map
1458	or next;
1459	$neigh->load;
1460		2347
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2348	$self
1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1463	}
1464
1465	for (@diag) {
1466	my $neigh = find @$_
1467	or next;
1468	$neigh->load;
1469	}
1470	}	2349	}
1471		2350
1472	sub find_sync {	2351	sub find_sync {
1473	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1474		2353
1475	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, $origin
1476	}	2359	}
1477		2360
1478	sub do_load_sync {	2361	sub do_load_sync {
1479	my ($map) = @_;	2362	my ($map) = @_;
1480		2363
1481	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;
1482	}	2369	}
1483		2370
1484	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
1485	our $MAP_PREFETCHER = Coro::async {	2385	$MAP_PREFETCHER ||= cf::async {
1486	while () {	2386	$Coro::current->{desc} = "map prefetcher";
		2387
1487	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
1490	my $path = delete $MAP_PREFETCH{$key};	2394	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2395	}
1496	Coro::schedule;	2396	}
		2397	undef $MAP_PREFETCHER;
1497	}	2398	};
1498	};
1499
1500	sub find_async {
1501	my ($path, $origin) = @_;
1502
1503	$path = new cf::path $path, $origin && $origin->path;
1504	my $key = $path->as_string;
1505
1506	if (my $map = $cf::MAP{$key}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}
1509
1510	$MAP_PREFETCH{$key} = $path;
1511	$MAP_PREFETCHER->ready;	2399	$MAP_PREFETCHER->prio (6);
1512		2400
1513	()	2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($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	}
1514	}	2434	}
1515		2435
1516	sub save {	2436	sub save {
1517	my ($self) = @_;	2437	my ($self) = @_;
1518		2438
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2440
1521	$self->{last_save} = $cf::RUNTIME;	2441	$self->_save;
1522
1523	return unless $self->dirty;
1524
1525	my $save = $self->{path}->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1527
1528	$self->{load_path} = $save;
1529
1530	return if $self->{deny_save};
1531
1532	local $self->{last_access} = $self->last_access;#d#
1533
1534	cf::async {
1535	$_->contr->save for $self->players;
1536	};
1537
1538	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}
1544	}	2442	}
1545		2443
1546	sub swap_out {	2444	sub swap_out {
1547	my ($self) = @_;	2445	my ($self) = @_;
1548		2446
1549	# save first because save cedes
1550	$self->save;
1551
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1554	return if $self->players;	2451	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};
1557		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
1558	$self->clear;	2462	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2463	}
1561		2464
1562	sub reset_at {	2465	sub reset_at {
1563	my ($self) = @_;	2466	my ($self) = @_;
1564		2467
1565	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1568		2470
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2473
…		…
1576	my ($self) = @_;	2478	my ($self) = @_;
1577		2479
1578	$self->reset_at <= $cf::RUNTIME	2480	$self->reset_at <= $cf::RUNTIME
1579	}	2481	}
1580		2482
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2483	sub reset {
1603	my ($self) = @_;	2484	my ($self) = @_;
1604		2485
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2487
1607	return if $self->players;	2488	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2489
1610	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	}
1611		2501
1612	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1613		2503
		2504	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
1615		2507
1616	$self->unlink_save;	2508	$self->unlink_save;
1617	$self->destroy;	2509	$self->destroy;
1618	}	2510	}
1619		2511
1620	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1621		2513
1622	sub nuke {	2514	sub nuke {
1623	my ($self) = @_;	2515	my ($self) = @_;
1624		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};
1625	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
1628	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
1629	}	2534	}
1630		2535
1631	sub customise_for {	2536	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2537
1634	if ($map->per_player) {	2538	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
1636	}	2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
1637		2553
1638	$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	]
1639	}	2570	}
1640		2571
1641	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1642		2573
1643	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
1644	instantiated unique items. May block.	2575	instantiated unique items. May block.
1645		2576
1646	=cut	2577	=cut
1647		2578
1648	sub unique_maps() {	2579	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1650	or return;	2581	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2582	utf8::decode $_;
1656	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1657	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1658		2585	? ()
1659	push @paths, new cf::path $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2588	]
1661
1662	\@paths
1663	}	2589	}
1664		2590
1665	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	}
1666		2622
1667	=back	2623	=back
1668		2624
1669	=head3 cf::object	2625	=head3 cf::object
1670		2626
…		…
1674		2630
1675	=over 4	2631	=over 4
1676		2632
1677	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1678		2634
1679	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.
1680		2637
1681	=cut	2638	=cut
1682		2639
1683	sub inv_recursive_;	2640	sub inv_recursive_;
1684	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1687		2644
1688	sub inv_recursive {	2645	sub inv_recursive {
1689	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1690	}	2647	}
1691		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
1692	package cf;	2677	package cf;
1693		2678
1694	=back	2679	=back
1695		2680
1696	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1702	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>
1703	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
1704	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1705		2690
1706	=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	};
1707		2706
1708	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1709	# with dialog boxes.	2708	# with dialog boxes.
1710	#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
1711	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1713		2712
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2714
1716	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1718	} 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 {
1719	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1721	}	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 (@_);
1722	}	2740	}
1723		2741
1724	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1725		2743
1726	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
1727	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
1728		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
1729	=cut	2772	=cut
1730		2773
1731	sub cf::object::player::may {	2774	sub cf::object::player::may {
1732	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
1733		2776
1734	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
1735	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
1736	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1737	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
1738	}	2781	}
1739		2782
1740	=item $player_object->enter_link	2783	=item $player_object->enter_link
1741		2784
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2785	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2786
1744	The player should be reaosnably safe there for short amounts of time. You	2787	The player should be reasonably safe there for short amounts of time (e.g.
1745	I<MUST> call C<leave_link> as soon as possible, though.	2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
		2791
		2792	This method will never block, which is the whole reaosn for it's
		2793	existance: you can I<always> put a player onto the link map, which is the
		2794	only place to put objects that is guaranteed to exist.
		2795
		2796	A typical usage pattern is to call C<enter_link> synchronously from the
		2797	server, then start a new thread, do your blocking stuff there and then
		2798	call C<leave_link> from that thread.
1746		2799
1747	=item $player_object->leave_link ($map, $x, $y)	2800	=item $player_object->leave_link ($map, $x, $y)
1748		2801
1749	Moves the player out of the specila link map onto the given map. If the	2802	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2803	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2804	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2805	fails, to the emergency map position.
1753		2806
1754	Might block.	2807	Might block.
1755		2808
1756	=cut	2809	=cut
		2810
		2811	sub link_map {
		2812	unless ($LINK_MAP) {
		2813	$LINK_MAP = cf::map::find "{link}"
		2814	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2815	$LINK_MAP->load;
		2816	}
		2817
		2818	$LINK_MAP
		2819	}
1757		2820
1758	sub cf::object::player::enter_link {	2821	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2822	my ($self) = @_;
1760		2823
1761	$self->deactivate_recursive;	2824	$self->deactivate_recursive;
1762		2825
1763	return if $self->map == $LINK_MAP;	2826	++$self->{_link_recursion};
		2827
		2828	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2829
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2830	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2831	if $self->map && $self->map->{path} ne "{link}";
1767		2832
1768	$self->enter_map ($LINK_MAP, 20, 20);	2833	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1769	}	2834	}
1770		2835
1771	sub cf::object::player::leave_link {	2836	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2837	my ($self, $map, $x, $y) = @_;
		2838
		2839	return unless $self->contr->active;
1773		2840
1774	my $link_pos = delete $self->{_link_pos};	2841	my $link_pos = delete $self->{_link_pos};
1775		2842
1776	unless ($map) {	2843	unless ($map) {
1777	# restore original map position	2844	# restore original map position
…		…
1788	($x, $y) = (-1, -1)	2855	($x, $y) = (-1, -1)
1789	unless (defined $x) && (defined $y);	2856	unless (defined $x) && (defined $y);
1790		2857
1791	# use -1 or undef as default coordinates, not 0, 0	2858	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2859	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2860	if $x <= 0 && $y <= 0;
1794		2861
1795	$map->load;	2862	$map->load;
1796	$map->load_diag;
1797		2863
1798	return unless $self->contr->active;	2864	return unless $self->contr->active;
		2865
		2866	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2867	if ($self->enter_map ($map, $x, $y)) {
		2868	# entering was successful
		2869	delete $self->{_link_recursion};
		2870	# only activate afterwards, to support waiting in hooks
1799	$self->activate_recursive;	2871	$self->activate_recursive;
1800	$self->enter_map ($map, $x, $y);
1801	}
1802
1803	cf::player->attach (
1804	on_logout => sub {
1805	my ($pl) = @_;
1806
1807	# abort map switching before logout
1808	if ($pl->ob->{_link_pos}) {
1809	cf::sync_job {
1810	$pl->ob->leave_link
1811	};
1812	}
1813	},	2872	}
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2873
1817	# try to abort aborted map switching on player login :)	2874	}
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834		2875
1835	=item $player_object->goto ($path, $x, $y)	2876	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1836		2877
		2878	Moves the player to the given map-path and coordinates by first freezing
		2879	her, loading and preparing them map, calling the provided $check callback
		2880	that has to return the map if sucecssful, and then unfreezes the player on
		2881	the new (success) or old (failed) map position. In either case, $done will
		2882	be called at the end of this process.
		2883
		2884	Note that $check will be called with a potentially non-loaded map, so if
		2885	it needs a loaded map it has to call C<< ->load >>.
		2886
1837	=cut	2887	=cut
		2888
		2889	our $GOTOGEN;
1838		2890
1839	sub cf::object::player::goto {	2891	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2892	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2893
1842	$path = new cf::path $path;	2894	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2895	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2896	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2897	($path, $x, $y) = @$EMERGENCY_POSITION;
		2898	}
		2899
		2900	# do generation counting so two concurrent goto's will be executed in-order
		2901	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2902
1844	$self->enter_link;	2903	$self->enter_link;
1845		2904
1846	(async {	2905	(async {
1847	my $map = cf::map::find $path->as_string;	2906	$Coro::current->{desc} = "player::goto $path $x $y";
		2907
		2908	# *tag paths override both path and x|y
		2909	if ($path =~ /^\*(.*)$/) {
		2910	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2911	my $ob = $obs[rand @obs];
		2912
		2913	# see if we actually can go there
		2914	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2915	$ob = $obs[rand @obs];
		2916	} else {
		2917	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2918	}
		2919	# else put us there anyways for now #d#
		2920
		2921	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2922	} else {
		2923	($path, $x, $y) = (undef, undef, undef);
		2924	}
		2925	}
		2926
		2927	my $map = eval {
		2928	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2929
		2930	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2931	$map = $map->customise_for ($self);
1849		2932	$map = $check->($map, $x, $y, $self) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2933	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2934	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2935	}
1854		2936
		2937	$map
		2938	};
		2939
		2940	if ($@) {
		2941	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2942	LOG llevError | logBacktrace, Carp::longmess $@;
		2943	}
		2944
		2945	if ($gen == $self->{_goto_generation}) {
		2946	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2947	$self->leave_link ($map, $x, $y);
		2948	}
		2949
		2950	$done->($self) if $done;
1856	})->prio (1);	2951	})->prio (1);
1857	}	2952	}
1858		2953
1859	=item $player_object->enter_exit ($exit_object)	2954	=item $player_object->enter_exit ($exit_object)
1860		2955
…		…
1862		2957
1863	sub parse_random_map_params {	2958	sub parse_random_map_params {
1864	my ($spec) = @_;	2959	my ($spec) = @_;
1865		2960
1866	my $rmp = { # defaults	2961	my $rmp = { # defaults
1867	xsize => 10,	2962	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2963	ysize => (cf::rndm 15, 40),
		2964	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2965	#layout => string,
1869	};	2966	};
1870		2967
1871	for (split /\n/, $spec) {	2968	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2969	my ($k, $v) = split /\s+/, $_, 2;
1873		2970
…		…
1885	# that depends on the exit object	2982	# that depends on the exit object
1886		2983
1887	my $rmp = parse_random_map_params $exit->msg;	2984	my $rmp = parse_random_map_params $exit->msg;
1888		2985
1889	if ($exit->map) {	2986	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2987	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2988	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2989	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2990	$rmp->{origin_y} = $exit->y;
		2991
		2992	$exit->map->touch;
1894	}	2993	}
1895		2994
1896	$rmp->{random_seed} ||= $exit->random_seed;	2995	$rmp->{random_seed} ||= $exit->random_seed;
1897		2996
1898	my $data = cf::to_json $rmp;	2997	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1899	my $md5 = Digest::MD5::md5_hex $data;	2998	my $md5 = Digest::MD5::md5_hex $data;
		2999	my $meta = "$RANDOMDIR/$md5.meta";
1900		3000
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3001	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	3002	aio_write $fh, 0, (length $data), $data, 0;
		3003	undef $fh;
		3004	aio_rename "$meta~", $meta;
1903		3005
		3006	my $slaying = "?random/$md5";
		3007
		3008	if ($exit->valid) {
1904	$exit->slaying ("?random/$md5");	3009	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	3010	$exit->msg (undef);
		3011	}
1906	}	3012	}
1907	}	3013	}
1908		3014
1909	sub cf::object::player::enter_exit {	3015	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	3016	my ($self, $exit) = @_;
…		…
1912	return unless $self->type == cf::PLAYER;	3018	return unless $self->type == cf::PLAYER;
1913		3019
1914	$self->enter_link;	3020	$self->enter_link;
1915		3021
1916	(async {	3022	(async {
1917	$self->deactivate_recursive; # just to be sure	3023	$Coro::current->{desc} = "enter_exit";
		3024
1918	unless (eval {	3025	unless (eval {
		3026	$self->deactivate_recursive; # just to be sure
		3027
		3028	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3029	my $x = $exit->stats->hp;
		3030	my $y = $exit->stats->sp;
		3031
		3032	# special map handling
		3033	my $slaying = $exit->slaying;
		3034
		3035	# special map handling
		3036	if ($slaying eq "/!") {
		3037	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3038
1919	prepare_random_map $exit	3039	prepare_random_map $exit
		3040	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3041
1920	if $exit->slaying eq "/!";	3042	$map = $exit->slaying;
1921		3043
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3044	} elsif ($slaying eq '!up') {
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3045	$map = $exit->map->tile_path (cf::TILE_UP);
		3046	$x = $exit->x;
		3047	$y = $exit->y;
1924		3048
		3049	} elsif ($slaying eq '!down') {
		3050	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3051	$x = $exit->x;
		3052	$y = $exit->y;
		3053	}
		3054
		3055	$self->goto ($map, $x, $y);
		3056
		3057	# if exit is damned, update players death & WoR home-position
		3058	$self->contr->savebed ($map, $x, $y)
		3059	if $exit->flag (cf::FLAG_DAMNED);
		3060
1925	1;	3061	1
1926	}) {	3062	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	3063	$self->message ("Something went wrong deep within the deliantra server. "
1928	. "I'll try to bring you back to the map you were before. "	3064	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	3065	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	3066	cf::NDI_UNIQUE | cf::NDI_RED);
1931		3067
1932	warn "ERROR in enter_exit: $@";	3068	error "ERROR in enter_exit: $@";
1933	$self->leave_link;	3069	$self->leave_link;
1934	}	3070	}
1935	})->prio (1);	3071	})->prio (1);
1936	}	3072	}
1937		3073
1938	=head3 cf::client	3074	=head3 cf::client
1939		3075
1940	=over 4	3076	=over 4
1941		3077
1942	=item $client->send_drawinfo ($text, $flags)	3078	=item $client->send_big_packet ($pkt)
1943		3079
1944	Sends a drawinfo packet to the client. Circumvents output buffering so	3080	Like C<send_packet>, but tries to compress large packets, and fragments
1945	should not be used under normal circumstances.	3081	them as required.
1946		3082
1947	=cut	3083	=cut
1948		3084
		3085	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3086
		3087	sub cf::client::send_big_packet {
		3088	my ($self, $pkt) = @_;
		3089
		3090	# try lzf for large packets
		3091	$pkt = "lzf " . Compress::LZF::compress $pkt
		3092	if 1024 <= length $pkt and $self->{can_lzf};
		3093
		3094	# split very large packets
		3095	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3096	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3097	$pkt = "frag";
		3098	}
		3099
		3100	$self->send_packet ($pkt);
		3101	}
		3102
		3103	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3104
		3105	Send a msg packet to the client, formatting the msg for the client if
		3106	necessary. C<$type> should be a string identifying the type of the
		3107	message, with C<log> being the default. If C<$color> is negative, suppress
		3108	the message unless the client supports the msg packet.
		3109
		3110	=cut
		3111
		3112	# non-persistent channels (usually the info channel)
		3113	our %CHANNEL = (
		3114	"c/motd" => {
		3115	id => "infobox",
		3116	title => "MOTD",
		3117	reply => undef,
		3118	tooltip => "The message of the day",
		3119	},
		3120	"c/identify" => {
		3121	id => "infobox",
		3122	title => "Identify",
		3123	reply => undef,
		3124	tooltip => "Items recently identified",
		3125	},
		3126	"c/examine" => {
		3127	id => "infobox",
		3128	title => "Examine",
		3129	reply => undef,
		3130	tooltip => "Signs and other items you examined",
		3131	},
		3132	"c/shopinfo" => {
		3133	id => "infobox",
		3134	title => "Shop Info",
		3135	reply => undef,
		3136	tooltip => "What your bargaining skill tells you about the shop",
		3137	},
		3138	"c/book" => {
		3139	id => "infobox",
		3140	title => "Book",
		3141	reply => undef,
		3142	tooltip => "The contents of a note or book",
		3143	},
		3144	"c/lookat" => {
		3145	id => "infobox",
		3146	title => "Look",
		3147	reply => undef,
		3148	tooltip => "What you saw there",
		3149	},
		3150	"c/who" => {
		3151	id => "infobox",
		3152	title => "Players",
		3153	reply => undef,
		3154	tooltip => "Shows players who are currently online",
		3155	},
		3156	"c/body" => {
		3157	id => "infobox",
		3158	title => "Body Parts",
		3159	reply => undef,
		3160	tooltip => "Shows which body parts you posess and are available",
		3161	},
		3162	"c/statistics" => {
		3163	id => "infobox",
		3164	title => "Statistics",
		3165	reply => undef,
		3166	tooltip => "Shows your primary statistics",
		3167	},
		3168	"c/skills" => {
		3169	id => "infobox",
		3170	title => "Skills",
		3171	reply => undef,
		3172	tooltip => "Shows your experience per skill and item power",
		3173	},
		3174	"c/shopitems" => {
		3175	id => "infobox",
		3176	title => "Shop Items",
		3177	reply => undef,
		3178	tooltip => "Shows the items currently for sale in this shop",
		3179	},
		3180	"c/resistances" => {
		3181	id => "infobox",
		3182	title => "Resistances",
		3183	reply => undef,
		3184	tooltip => "Shows your resistances",
		3185	},
		3186	"c/pets" => {
		3187	id => "infobox",
		3188	title => "Pets",
		3189	reply => undef,
		3190	tooltip => "Shows information abotu your pets/a specific pet",
		3191	},
		3192	"c/perceiveself" => {
		3193	id => "infobox",
		3194	title => "Perceive Self",
		3195	reply => undef,
		3196	tooltip => "You gained detailed knowledge about yourself",
		3197	},
		3198	"c/uptime" => {
		3199	id => "infobox",
		3200	title => "Uptime",
		3201	reply => undef,
		3202	tooltip => "How long the server has been running since last restart",
		3203	},
		3204	"c/mapinfo" => {
		3205	id => "infobox",
		3206	title => "Map Info",
		3207	reply => undef,
		3208	tooltip => "Information related to the maps",
		3209	},
		3210	"c/party" => {
		3211	id => "party",
		3212	title => "Party",
		3213	reply => "gsay ",
		3214	tooltip => "Messages and chat related to your party",
		3215	},
		3216	"c/death" => {
		3217	id => "death",
		3218	title => "Death",
		3219	reply => undef,
		3220	tooltip => "Reason for and more info about your most recent death",
		3221	},
		3222	"c/fatal" => {
		3223	id => "fatal",
		3224	title => "Fatal Error",
		3225	reply => undef,
		3226	tooltip => "Reason for the server disconnect",
		3227	},
		3228	"c/say" => $SAY_CHANNEL,
		3229	"c/chat" => $CHAT_CHANNEL,
		3230	);
		3231
1949	sub cf::client::send_drawinfo {	3232	sub cf::client::send_msg {
		3233	my ($self, $channel, $msg, $color, @extra) = @_;
		3234
		3235	$msg = $self->pl->expand_cfpod ($msg)
		3236	unless $color & cf::NDI_VERBATIM;
		3237
		3238	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3239
		3240	# check predefined channels, for the benefit of C
		3241	if ($CHANNEL{$channel}) {
		3242	$channel = $CHANNEL{$channel};
		3243
		3244	$self->ext_msg (channel_info => $channel);
		3245	$channel = $channel->{id};
		3246
		3247	} elsif (ref $channel) {
		3248	# send meta info to client, if not yet sent
		3249	unless (exists $self->{channel}{$channel->{id}}) {
		3250	$self->{channel}{$channel->{id}} = $channel;
		3251	$self->ext_msg (channel_info => $channel);
		3252	}
		3253
		3254	$channel = $channel->{id};
		3255	}
		3256
		3257	return unless @extra || length $msg;
		3258
		3259	# default colour, mask it out
		3260	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3261	if $color & cf::NDI_DEF;
		3262
		3263	my $pkt = "msg "
		3264	. $self->{json_coder}->encode (
		3265	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3266	);
		3267
		3268	$self->send_big_packet ($pkt);
		3269	}
		3270
		3271	=item $client->ext_msg ($type, @msg)
		3272
		3273	Sends an ext event to the client.
		3274
		3275	=cut
		3276
		3277	sub cf::client::ext_msg($$@) {
1950	my ($self, $text, $flags) = @_;	3278	my ($self, $type, @msg) = @_;
1951		3279
1952	utf8::encode $text;	3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1954	}	3281	}
1955
1956		3282
1957	=item $success = $client->query ($flags, "text", \&cb)	3283	=item $success = $client->query ($flags, "text", \&cb)
1958		3284
1959	Queues a query to the client, calling the given callback with	3285	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3286	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3287	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		3288
1963	Queries can fail, so check the return code. Or don't, as queries will become	3289	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	3290	become reliable at some point in the future.
1965		3291
1966	=cut	3292	=cut
1967		3293
1968	sub cf::client::query {	3294	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	3295	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	3303	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3304	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		3305
1980	$self->send_packet ($self->{query_queue}[0][0])	3306	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	3307	if @{ $self->{query_queue} } == 1;
		3308
		3309	1
		3310	}
		3311
		3312	=item $client->update_command_faces
		3313
		3314	=cut
		3315
		3316	our %COMMAND_FACE;
		3317
		3318	sub cf::client::update_command_faces {
		3319	my ($self) = @_;
		3320
		3321	my @faces = grep $_,
		3322	$COMMAND_FACE{preferred},
		3323	$COMMAND_FACE{standard},
		3324	$COMMAND_FACE{skill},
		3325	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3326	$COMMAND_FACE{emote},
		3327	;
		3328
		3329	$self->send_face ($_)
		3330	for @faces;
		3331	$self->flush_fx;
		3332
		3333	$self->ext_msg (command_list => @faces);
		3334	}
		3335
		3336	=item cf::client::set_command_face $type, $commands
		3337
		3338	=cut
		3339
		3340	sub cf::client::set_command_face {
		3341	my ($type, $list) = @_;
		3342
		3343	my $idx = &cf::face::set ( #d# ugly forward reference
		3344	"command_list/$type" => cf::FT_RSRC,
		3345	JSON::XS->new->utf8->encode ([ sort @$list ])
		3346	);
		3347
		3348	$COMMAND_FACE{$type} = $idx;
1982	}	3349	}
1983		3350
1984	cf::client->attach (	3351	cf::client->attach (
		3352	on_connect => sub {
		3353	my ($ns) = @_;
		3354
		3355	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3356	},
1985	on_reply => sub {	3357	on_reply => sub {
1986	my ($ns, $msg) = @_;	3358	my ($ns, $msg) = @_;
1987		3359
1988	# this weird shuffling is so that direct followup queries	3360	# this weird shuffling is so that direct followup queries
1989	# get handled first	3361	# get handled first
1990	my $queue = delete $ns->{query_queue}	3362	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	3363	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		3364
1993	(shift @$queue)->[1]->($msg);	3365	(shift @$queue)->[1]->($msg);
		3366	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		3367
1995	push @{ $ns->{query_queue} }, @$queue;	3368	push @{ $ns->{query_queue} }, @$queue;
1996		3369
1997	if (@{ $ns->{query_queue} } == @$queue) {	3370	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	3371	if (@$queue) {
…		…
2000	} else {	3373	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3374	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	3375	}
2003	}	3376	}
2004	},	3377	},
		3378	on_exticmd => sub {
		3379	my ($ns, $buf) = @_;
		3380
		3381	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3382
		3383	if (ref $msg) {
		3384	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3385
		3386	if (my $cb = $EXTIACMD{$type}) {
		3387	$cb->(
		3388	$ns,
		3389	sub {
		3390	$ns->ext_msg ("reply-$reply", @_)
		3391	if $reply;
		3392	},
		3393	@payload
		3394	);
		3395	} else {
		3396	my @reply;
		3397
		3398	if (my $cb = $EXTICMD{$type}) {
		3399	@reply = $cb->($ns, @payload);
		3400	}
		3401
		3402	$ns->ext_msg ("reply-$reply", @reply)
		3403	if $reply;
		3404	}
		3405	} else {
		3406	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3407	}
		3408
		3409	cf::override;
		3410	},
2005	);	3411	);
2006		3412
2007	=item $client->async (\&cb)	3413	=item $client->async (\&cb)
2008		3414
2009	Create a new coroutine, running the specified callback. The coroutine will	3415	Create a new coroutine, running the specified callback. The coroutine will
…		…
2025		3431
2026	$coro	3432	$coro
2027	}	3433	}
2028		3434
2029	cf::client->attach (	3435	cf::client->attach (
2030	on_destroy => sub {	3436	on_client_destroy => sub {
2031	my ($ns) = @_;	3437	my ($ns) = @_;
2032		3438
2033	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3439	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2034	},	3440	},
2035	);	3441	);
…		…
2050	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
2052		3458
2053	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
2054		3460
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3461	$safe->permit_only (Opcode::opset qw(
		3462	:base_core :base_mem :base_orig :base_math :base_loop
		3463	grepstart grepwhile mapstart mapwhile
		3464	sort time
		3465	));
2056		3466
2057	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
2058		3468
2059	=pod	3469	=pod
2060		3470
2061	The following fucntions and emthods are available within a safe environment:	3471	The following functions and methods are available within a safe environment:
2062		3472
2063	cf::object contr pay_amount pay_player map	3473	cf::object
		3474	contr pay_amount pay_player map x y force_find force_add destroy
		3475	insert remove name archname title slaying race decrease split
		3476	value
		3477
2064	cf::object::player player	3478	cf::object::player
2065	cf::player peaceful	3479	player
2066	cf::map trigger	3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
2067		3486
2068	=cut	3487	=cut
2069		3488
2070	for (	3489	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	3490	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3491	insert remove inv nrof name archname title slaying race
		3492	decrease split destroy change_exp value msg lore send_msg)],
2072	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
2074	["cf::map" => qw(trigger)],	3495	["cf::map" => qw(trigger)],
2075	) {	3496	) {
2076	no strict 'refs';
2077	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
2078	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2079	for @funs;	3499	for @funs;
2080	}	3500	}
2081		3501
…		…
2096		3516
2097	my $qcode = $code;	3517	my $qcode = $code;
2098	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2099	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
2100		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
2101	local $_;	3524	local $_;
2102	local @safe::cf::_safe_eval_args = values %vars;
2103		3525
2104	my $eval =	3526	my $eval =
2105	"do {\n"	3527	"do {\n"
2106	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2107	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
2108	. $code	3530	. $code
2109	. "\n}"	3531	. "\n}"
2110	;	3532	;
2111		3533
		3534	if ($CFG{safe_eval}) {
2112	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
2113	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2114	sub_generation_inc;	3538	sub_generation_inc;
		3539	} else {
		3540	local @cf::_safe_eval_args = values %vars;
		3541	@res = wantarray ? eval eval : scalar eval $eval;
		3542	}
2115		3543
2116	if ($@) {	3544	if ($@) {
2117	warn "$@";	3545	warn "$@",
2118	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
2119	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
2120	}	3548	}
2121		3549
2122	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
2123	}	3551	}
2124		3552
…		…
2138	=cut	3566	=cut
2139		3567
2140	sub register_script_function {	3568	sub register_script_function {
2141	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
2142		3570
2143	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
2144	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
2145	}	3573	}
2146		3574
2147	=back	3575	=back
2148		3576
2149	=cut	3577	=cut
2150		3578
2151	#############################################################################	3579	#############################################################################
2152		3580	# the server's init and main functions
2153	=head2 EXTENSION DATABASE SUPPORT
2154
2155	Crossfire maintains a very simple database for extension use. It can
2156	currently store anything that can be serialised using Storable, which
2157	excludes objects.
2158
2159	The parameter C<$family> should best start with the name of the extension
2160	using it, it should be unique.
2161
2162	=over 4
2163
2164	=item $hashref = cf::db_get $family
2165
2166	Return a hashref for use by the extension C<$family>, which can be
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169
2170	=item $value = cf::db_get $family => $key
2171
2172	Returns a single value from the database
2173
2174	=item cf::db_put $family => $hashref
2175
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195		3581
2196	{	3582	{
2197	my $path = cf::localdir . "/database.pst";	3583	package cf::face;
2198		3584
2199	sub db_load() {	3585	our %HASH; # hash => idx
2200	$DB = stat $path ? Storable::retrieve $path : { };	3586	our @DATA; # dynamically-created facedata, only faceste 0 used
2201	}	3587	our @FOFS; # file offset, if > 0
		3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
2202		3591
2203	my $pid;	3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
2204		3595
2205	sub db_save() {	3596	my $idx = cf::face::find $name;
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214		3597
2215	my $dirty;	3598	if ($idx) {
2216		3599	delete $HASH{cf::face::get_csum $idx};
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {	3600	} else {
2241	$DB->{$_[0]} = $_[1];	3601	$idx = cf::face::alloc $name;
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3602	}
		3603
		3604	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3605
		3606	cf::face::set_type $idx, $type;
		3607	cf::face::set_csum $idx, 0, $hash;
		3608
		3609	# we need to destroy the SV itself, not just modify it, as a running ix
		3610	# might hold a reference to it: "delete" achieves that.
		3611	delete $FOFS[0][$idx];
		3612	delete $DATA[0][$idx];
		3613	$DATA[0][$idx] = $data;
		3614	$SIZE[0][$idx] = length $data;
		3615	delete $META[$idx];
		3616	$HASH{$hash} = $idx;#d#
		3617
		3618	$idx
		3619	}
		3620
		3621	sub _get_data($$$) {
		3622	my ($idx, $set, $cb) = @_;
		3623
		3624	if (defined $DATA[$set][$idx]) {
		3625	$cb->($DATA[$set][$idx]);
		3626	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3627	my $size = $SIZE[$set][$idx];
		3628	my $buf;
		3629	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3630	if ($_[0] == $size) {
		3631	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3632	$cb->($buf);
		3633	} else {
		3634	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3635	}
		3636	};
		3637	} else {
		3638	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3639	}
		3640	}
		3641
		3642	# rather ineffient
		3643	sub cf::face::get_data($;$) {
		3644	my ($idx, $set) = @_;
		3645
		3646	_get_data $idx, $set, Coro::rouse_cb;
		3647	Coro::rouse_wait
		3648	}
		3649
		3650	sub cf::face::ix {
		3651	my ($ns, $set, $idx, $pri) = @_;
		3652
		3653	_get_data $idx, $set, sub {
		3654	$ns->ix_send ($idx, $pri, $_[0]);
		3655	};
		3656	}
		3657	}
		3658
		3659	sub load_facedata($) {
		3660	my ($path) = @_;
		3661
		3662	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3663
		3664	trace "loading facedata from $path\n";
		3665
		3666	my $facedata = decode_storable load_file "$path/faceinfo";
		3667
		3668	$facedata->{version} == 2
		3669	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3670
		3671	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3672	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3673
		3674	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3675
		3676	# BEGIN ATOMIC
		3677	# from here on, everything must be atomic - no thread switch allowed
		3678	my $t1 = EV::time;
		3679
		3680	{
		3681	my $faces = $facedata->{faceinfo};
		3682
		3683	for my $face (sort keys %$faces) {
		3684	my $info = $faces->{$face};
		3685	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3686
		3687	cf::face::set_visibility $idx, $info->{visibility};
		3688	cf::face::set_magicmap $idx, $info->{magicmap};
		3689	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3690	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3691	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3692	$cf::face::HASH{$info->{hash64}} = $idx;
		3693	delete $cf::face::META[$idx];
		3694	}
		3695
		3696	while (my ($face, $info) = each %$faces) {
		3697	next unless $info->{smooth};
		3698
		3699	my $idx = cf::face::find $face
		3700	or next;
		3701
		3702	if (my $smooth = cf::face::find $info->{smooth}) {
		3703	cf::face::set_smooth $idx, $smooth;
		3704	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3705	} else {
		3706	error "smooth face '$info->{smooth}' not found for face '$face'";
		3707	}
		3708	}
		3709	}
		3710
		3711	{
		3712	my $anims = $facedata->{animinfo};
		3713
		3714	while (my ($anim, $info) = each %$anims) {
		3715	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3716	}
		3717
		3718	cf::anim::invalidate_all; # d'oh
		3719	}
		3720
		3721	{
		3722	my $res = $facedata->{resource};
		3723
		3724	while (my ($name, $info) = each %$res) {
		3725	if (defined (my $type = $info->{type})) {
		3726	# TODO: different hash - must free and use new index, or cache ixface data queue
		3727	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3728
		3729	cf::face::set_type $idx, $type;
		3730	cf::face::set_csum $idx, 0, $info->{hash};
		3731	$cf::face::SIZE[0][$idx] = $info->{size};
		3732	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3733	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3734	$cf::face::HASH{$info->{hash}} = $idx;
		3735	} else {
		3736	# $RESOURCE{$name} = $info; # unused
		3737	}
		3738	}
		3739	}
		3740
		3741	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3742
		3743	# HACK to clear player env face cache, we need some signal framework
		3744	# for this (global event?)
		3745	%ext::player_env::MUSIC_FACE_CACHE = ();
		3746
		3747	# END ATOMIC
		3748
		3749	cf::debug "facedata atomic update time ", EV::time - $t1;
		3750
		3751	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3752
		3753	aio_close $fh if $fh; # close old facedata
		3754
		3755	1
		3756	}
		3757
		3758	register_exticmd fx_want => sub {
		3759	my ($ns, $want) = @_;
		3760
		3761	while (my ($k, $v) = each %$want) {
		3762	$ns->fx_want ($k, $v);
		3763	}
		3764	};
		3765
		3766	sub load_resource_file($) {
		3767	my $guard = lock_acquire "load_resource_file";
		3768
		3769	my $status = load_resource_file_ $_[0];
		3770	get_slot 0.1, 100;
		3771	cf::arch::commit_load;
		3772
		3773	$status
		3774	}
		3775
		3776	sub reload_exp_table {
		3777	_reload_exp_table;
		3778
		3779	cf::face::set
		3780	"res/exp_table" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
2251	);	3783	);
2252	}	3784	}
2253		3785
2254	#############################################################################	3786	sub reload_materials {
2255	# the server's main()	3787	_reload_materials;
		3788	}
2256		3789
2257	sub cfg_load {	3790	sub reload_regions {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3791	# HACK to clear player env face cache, we need some signal framework
2259	or return;	3792	# for this (global event?)
		3793	%ext::player_env::MUSIC_FACE_CACHE = ();
2260		3794
2261	local $/;	3795	load_resource_file "$MAPDIR/regions"
2262	*CFG = YAML::Syck::Load <$fh>;	3796	or die "unable to load regions file\n";
2263		3797
		3798	for (cf::region::list) {
		3799	$_->{match} = qr/$_->{match}/
		3800	if exists $_->{match};
		3801	}
		3802	}
		3803
		3804	sub reload_facedata {
		3805	load_facedata $DATADIR
		3806	or die "unable to load facedata\n";
		3807	}
		3808
		3809	sub reload_archetypes {
		3810	load_resource_file "$DATADIR/archetypes"
		3811	or die "unable to load archetypes\n";
		3812
		3813	cf::face::set
		3814	"res/skill_info" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3817	);
		3818
		3819	cf::face::set
		3820	"res/spell_paths" => FT_RSRC,
		3821	JSON::XS->new->utf8->canonical->encode (
		3822	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3823	);
		3824
		3825	# command completion
		3826	my @commands;
		3827
		3828	for (0..cf::arch::skillvec_size - 1) {
		3829	my $skill = cf::arch::skillvec $_;
		3830	my $name = $skill->name;
		3831	my $flags = cf::skill_flags $skill->subtype;
		3832
		3833	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3834	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3835	}
		3836
		3837	cf::client::set_command_face skill => \@commands;
		3838	}
		3839
		3840	sub reload_treasures {
		3841	load_resource_file "$DATADIR/treasures"
		3842	or die "unable to load treasurelists\n";
		3843	}
		3844
		3845	sub reload_sound {
		3846	trace "loading sound config from $DATADIR/sound\n";
		3847
		3848	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3849
		3850	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3851	my $sound = $soundconf->{compat}[$_]
		3852	or next;
		3853
		3854	my $face = cf::face::find "sound/$sound->[1]";
		3855	cf::sound::set $sound->[0] => $face;
		3856	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3857	}
		3858
		3859	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3860	my $face = cf::face::find "sound/$v";
		3861	cf::sound::set $k => $face;
		3862	}
		3863	}
		3864
		3865	sub reload_resources {
		3866	trace "reloading resource files...\n";
		3867
		3868	reload_materials;
		3869	reload_facedata;
		3870	reload_exp_table;
		3871	reload_sound;
		3872	reload_archetypes;
		3873	reload_regions;
		3874	reload_treasures;
		3875
		3876	trace "finished reloading resource files\n";
		3877	}
		3878
		3879	sub reload_config {
		3880	trace "reloading config file...\n";
		3881
		3882	my $config = load_file "$CONFDIR/config";
		3883	utf8::decode $config;
		3884	*CFG = decode_yaml $config;
		3885
2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3886	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2265		3887
2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3888	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3889	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2268		3890
2269	if (exists $CFG{mlockall}) {	3891	if (exists $CFG{mlockall}) {
…		…
2273	};	3895	};
2274	warn $@ if $@;	3896	warn $@ if $@;
2275	}	3897	}
2276	}	3898	}
2277		3899
		3900	sub pidfile() {
		3901	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3902	or die "$PIDFILE: $!";
		3903	flock $fh, &Fcntl::LOCK_EX
		3904	or die "$PIDFILE: flock: $!";
		3905	$fh
		3906	}
		3907
		3908	# make sure only one server instance is running at any one time
		3909	sub atomic {
		3910	my $fh = pidfile;
		3911
		3912	my $pid = <$fh>;
		3913	kill 9, $pid if $pid > 0;
		3914
		3915	seek $fh, 0, 0;
		3916	print $fh $$;
		3917	}
		3918
		3919	sub main_loop {
		3920	trace "EV::run starting\n";
		3921	if (1) {
		3922	EV::run;
		3923	}
		3924	trace "EV::run returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
		3927
2278	sub main {	3928	sub main {
		3929	cf::init_globals; # initialise logging
		3930
		3931	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3932	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3933	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3934	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3935
		3936	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3937
2279	# we must not ever block the main coroutine	3938	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3939	$Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3940	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2282	async { Event::one_event };	3941	(async {
		3942	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3943	EV::run EV::RUN_ONESHOT;
		3944	})->prio (Coro::PRIO_MAX);
2283	};	3945	};
2284		3946
2285	cfg_load;	3947	evthread_start IO::AIO::poll_fileno;
2286	db_load;	3948
		3949	cf::sync_job {
		3950	cf::incloader::init ();
		3951
		3952	db_init;
		3953
		3954	cf::init_anim;
		3955	cf::init_attackmess;
		3956	cf::init_dynamic;
		3957
		3958	cf::load_settings;
		3959
		3960	reload_resources;
		3961	reload_config;
		3962
		3963	cf::init_uuid;
		3964	cf::init_signals;
		3965	cf::init_skills;
		3966
		3967	cf::init_beforeplay;
		3968
		3969	atomic;
		3970
2287	load_extensions;	3971	load_extensions;
2288	Event::loop;	3972
		3973	utime time, time, $RUNTIMEFILE;
		3974
		3975	# no (long-running) fork's whatsoever before this point(!)
		3976	use POSIX ();
		3977	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3978
		3979	cf::_post_init 0;
		3980	};
		3981
		3982	cf::object::thawer::errors_are_fatal 0;
		3983	info "parse errors in files are no longer fatal from this point on.\n";
		3984
		3985	AE::postpone {
		3986	undef &main; # free gobs of memory :)
		3987	};
		3988
		3989	goto &main_loop;
2289	}	3990	}
2290		3991
2291	#############################################################################	3992	#############################################################################
2292	# initialisation and cleanup	3993	# initialisation and cleanup
2293		3994
2294	# install some emergency cleanup handlers	3995	# install some emergency cleanup handlers
2295	BEGIN {	3996	BEGIN {
		3997	our %SIGWATCHER = ();
2296	for my $signal (qw(INT HUP TERM)) {	3998	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2298	data => WF_AUTOCANCEL,
2299	signal => $signal,
2300	cb => sub {
2301	cf::cleanup "SIG$signal";	4000	cf::cleanup "SIG$signal";
2302	},
2303	);	4001	};
		4002	}
		4003	}
		4004
		4005	sub write_runtime_sync {
		4006	my $t0 = AE::time;
		4007
		4008	# first touch the runtime file to show we are still running:
		4009	# the fsync below can take a very very long time.
		4010
		4011	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4012
		4013	my $guard = cf::lock_acquire "write_runtime";
		4014
		4015	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4016	or return;
		4017
		4018	my $value = $cf::RUNTIME + 90 + 10;
		4019	# 10 is the runtime save interval, for a monotonic clock
		4020	# 60 allows for the watchdog to kill the server.
		4021
		4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4023	and return;
		4024
		4025	# always fsync - this file is important
		4026	aio_fsync $fh
		4027	and return;
		4028
		4029	# touch it again to show we are up-to-date
		4030	aio_utime $fh, undef, undef;
		4031
		4032	close $fh
		4033	or return;
		4034
		4035	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4036	and return;
		4037
		4038	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4039
2304	}	4040	1
		4041	}
		4042
		4043	our $uuid_lock;
		4044	our $uuid_skip;
		4045
		4046	sub write_uuid_sync($) {
		4047	$uuid_skip ||= $_[0];
		4048
		4049	return if $uuid_lock;
		4050	local $uuid_lock = 1;
		4051
		4052	my $uuid = "$LOCALDIR/uuid";
		4053
		4054	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4055	or return;
		4056
		4057	my $value = uuid_seq uuid_cur;
		4058
		4059	unless ($value) {
		4060	info "cowardly refusing to write zero uuid value!\n";
		4061	return;
		4062	}
		4063
		4064	my $value = uuid_str $value + $uuid_skip;
		4065	$uuid_skip = 0;
		4066
		4067	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4068	and return;
		4069
		4070	# always fsync - this file is important
		4071	aio_fsync $fh
		4072	and return;
		4073
		4074	close $fh
		4075	or return;
		4076
		4077	aio_rename "$uuid~", $uuid
		4078	and return;
		4079
		4080	trace "uuid file written ($value).\n";
		4081
		4082	1
		4083
		4084	}
		4085
		4086	sub write_uuid($$) {
		4087	my ($skip, $sync) = @_;
		4088
		4089	$sync ? write_uuid_sync $skip
		4090	: async { write_uuid_sync $skip };
2305	}	4091	}
2306		4092
2307	sub emergency_save() {	4093	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	4094	my $freeze_guard = cf::freeze_mainloop;
2309		4095
2310	warn "enter emergency perl save\n";	4096	info "emergency_perl_save: enter\n";
		4097
		4098	# this is a trade-off: we want to be very quick here, so
		4099	# save all maps without fsync, and later call a global sync
		4100	# (which in turn might be very very slow)
		4101	local $USE_FSYNC = 0;
2311		4102
2312	cf::sync_job {	4103	cf::sync_job {
		4104	cf::write_runtime_sync; # external watchdog should not bark
		4105
2313	# use a peculiar iteration method to avoid tripping on perl	4106	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	4107	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	4108	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	4109	info "emergency_perl_save: begin player save\n";
2317	for my $login (keys %cf::PLAYER) {	4110	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	4111	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	4112	$pl->valid or next;
		4113	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	4114	$pl->save;
2321	}	4115	}
2322	warn "end emergency player save\n";	4116	info "emergency_perl_save: end player save\n";
2323		4117
2324	warn "begin emergency map save\n";	4118	cf::write_runtime_sync; # external watchdog should not bark
		4119
		4120	info "emergency_perl_save: begin map save\n";
2325	for my $path (keys %cf::MAP) {	4121	for my $path (keys %cf::MAP) {
2326	my $map = $cf::MAP{$path} or next;	4122	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	4123	$map->valid or next;
2328	$map->save;	4124	$map->save;
2329	}	4125	}
2330	warn "end emergency map save\n";	4126	info "emergency_perl_save: end map save\n";
		4127
		4128	cf::write_runtime_sync; # external watchdog should not bark
		4129
		4130	info "emergency_perl_save: begin database checkpoint\n";
		4131	BDB::db_env_txn_checkpoint $DB_ENV;
		4132	info "emergency_perl_save: end database checkpoint\n";
		4133
		4134	info "emergency_perl_save: begin write uuid\n";
		4135	write_uuid_sync 1;
		4136	info "emergency_perl_save: end write uuid\n";
		4137
		4138	cf::write_runtime_sync; # external watchdog should not bark
		4139
		4140	trace "emergency_perl_save: syncing database to disk";
		4141	BDB::db_env_txn_checkpoint $DB_ENV;
		4142
		4143	info "emergency_perl_save: starting sync\n";
		4144	IO::AIO::aio_sync sub {
		4145	info "emergency_perl_save: finished sync\n";
		4146	};
		4147
		4148	cf::write_runtime_sync; # external watchdog should not bark
		4149
		4150	trace "emergency_perl_save: flushing outstanding aio requests";
		4151	while (IO::AIO::nreqs || BDB::nreqs) {
		4152	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4153	}
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
2331	};	4156	};
2332		4157
2333	warn "leave emergency perl save\n";	4158	info "emergency_perl_save: leave\n";
2334	}	4159	}
2335		4160
		4161	sub post_cleanup {
		4162	my ($make_core) = @_;
		4163
		4164	IO::AIO::flush;
		4165
		4166	error Carp::longmess "post_cleanup backtrace"
		4167	if $make_core;
		4168
		4169	my $fh = pidfile;
		4170	unlink $PIDFILE if <$fh> == $$;
		4171	}
		4172
		4173	# a safer delete_package, copied from Symbol
		4174	sub clear_package($) {
		4175	my $pkg = shift;
		4176
		4177	# expand to full symbol table name if needed
		4178	unless ($pkg =~ /^main::.*::$/) {
		4179	$pkg = "main$pkg" if $pkg =~ /^::/;
		4180	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4181	$pkg .= '::' unless $pkg =~ /::$/;
		4182	}
		4183
		4184	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4185	my $stem_symtab = *{$stem}{HASH};
		4186
		4187	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4188	or return;
		4189
		4190	# clear all symbols
		4191	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4192	for my $name (keys %$leaf_symtab) {
		4193	_gv_clear *{"$pkg$name"};
		4194	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4195	}
		4196	}
		4197
2336	sub reload() {	4198	sub do_reload_perl() {
2337	# can/must only be called in main	4199	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	4200	unless (in_main) {
2339	warn "can only reload from main coroutine\n";	4201	error "can only reload from main coroutine";
2340	return;	4202	return;
2341	}	4203	}
2342		4204
2343	warn "reloading...";	4205	return if $RELOAD++;
2344		4206
2345	my $guard = freeze_mainloop;	4207	my $t1 = AE::time;
		4208
		4209	while ($RELOAD) {
		4210	cf::get_slot 0.1, -1, "reload_perl";
		4211	info "perl_reload: reloading...";
		4212
		4213	trace "perl_reload: entering sync_job";
		4214
		4215	cf::sync_job {
2346	cf::emergency_save;	4216	#cf::emergency_save;
2347		4217
2348	eval {	4218	trace "perl_reload: cancelling all extension coros";
2349	# if anything goes wrong in here, we should simply crash as we already saved
2350
2351	# cancel all watchers
2352	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}
2355
2356	# cancel all extension coros
2357	$_->cancel for values %EXT_CORO;	4219	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	4220	%EXT_CORO = ();
2359		4221
2360	# unload all extensions	4222	trace "perl_reload: removing commands";
2361	for (@exts) {	4223	%COMMAND = ();
2362	warn "unloading <$_>";
2363	unload_extension $_;
2364	}
2365		4224
2366	# unload all modules loaded from $LIBDIR	4225	trace "perl_reload: removing ext/exti commands";
2367	while (my ($k, $v) = each %INC) {	4226	%EXTCMD = ();
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4227	%EXTICMD = ();
2369		4228
2370	warn "removing <$k>";	4229	trace "perl_reload: unloading/nuking all extensions";
2371	delete $INC{$k};	4230	for my $pkg (@EXTS) {
		4231	trace "... unloading $pkg";
2372		4232
2373	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;
2375
2376	if (my $cb = $k->can ("unload_module")) {	4233	if (my $cb = $pkg->can ("unload")) {
		4234	eval {
2377	$cb->();	4235	$cb->($pkg);
		4236	1
		4237	} or error "$pkg unloaded, but with errors: $@";
		4238	}
		4239
		4240	trace "... clearing $pkg";
		4241	clear_package $pkg;
2378	}	4242	}
2379		4243
2380	Symbol::delete_package $k;	4244	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4245	while (my ($k, $v) = each %INC) {
		4246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4247
		4248	trace "... unloading $k";
		4249	delete $INC{$k};
		4250
		4251	$k =~ s/\.pm$//;
		4252	$k =~ s/\//::/g;
		4253
		4254	if (my $cb = $k->can ("unload_module")) {
		4255	$cb->();
		4256	}
		4257
		4258	clear_package $k;
2381	}	4259	}
2382		4260
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	4261	trace "perl_reload: getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	4262	clear_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4263	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		4264
2391	# remove register_script_function callbacks	4265	trace "perl_reload: unloading cf.pm \"a bit\"";
2392	# TODO
2393
2394	# unload cf.pm "a bit"
2395	delete $INC{"cf.pm"};	4266	delete $INC{"cf.pm"};
		4267	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2396		4268
2397	# don't, removes xs symbols, too,	4269	# don't, removes xs symbols, too,
2398	# and global variables created in xs	4270	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	4271	#clear_package __PACKAGE__;
2400		4272
2401	# reload cf.pm	4273	info "perl_reload: unload completed, starting to reload now";
2402	warn "reloading cf.pm";	4274
		4275	trace "perl_reload: reloading cf.pm";
2403	require cf;	4276	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4277	cf::_connect_to_perl_1;
2405		4278
2406	# load config and database again	4279	trace "perl_reload: loading config and database again";
2407	cf::cfg_load;	4280	cf::reload_config;
2408	cf::db_load;
2409		4281
2410	# load extensions	4282	trace "perl_reload: loading extensions";
2411	warn "load extensions";
2412	cf::load_extensions;	4283	cf::load_extensions;
2413		4284
2414	# reattach attachments to objects	4285	if ($REATTACH_ON_RELOAD) {
2415	warn "reattach";	4286	trace "perl_reload: reattaching attachments to objects/players";
2416	_global_reattach;	4287	_global_reattach; # objects, sockets
		4288	trace "perl_reload: reattaching attachments to maps";
2417	reattach $_ for values %MAP;	4289	reattach $_ for values %MAP;
		4290	trace "perl_reload: reattaching attachments to players";
		4291	reattach $_ for values %PLAYER;
		4292	}
		4293
		4294	cf::_post_init 1;
		4295
		4296	trace "perl_reload: leaving sync_job";
		4297
		4298	1
		4299	} or do {
		4300	error $@;
		4301	cf::cleanup "perl_reload: error, exiting.";
		4302	};
		4303
		4304	--$RELOAD;
		4305	}
		4306
		4307	$t1 = AE::time - $t1;
		4308	info "perl_reload: completed in ${t1}s\n";
		4309	};
		4310
		4311	our $RELOAD_WATCHER; # used only during reload
		4312
		4313	sub reload_perl() {
		4314	# doing reload synchronously and two reloads happen back-to-back,
		4315	# coro crashes during coro_state_free->destroy here.
		4316
		4317	$RELOAD_WATCHER ||= cf::async {
		4318	Coro::AIO::aio_wait cache_extensions;
		4319
		4320	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4321	do_reload_perl;
		4322	undef $RELOAD_WATCHER;
		4323	};
2418	};	4324	};
2419
2420	if ($@) {
2421	warn $@;
2422	warn "error while reloading, exiting.";
2423	exit 1;
2424	}
2425
2426	warn "reloaded successfully";
2427	};
2428
2429	#############################################################################
2430
2431	unless ($LINK_MAP) {
2432	$LINK_MAP = cf::map::new;
2433
2434	$LINK_MAP->width (41);
2435	$LINK_MAP->height (41);
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,
2444	cb => sub {
2445	$_[0]->w->cancel;
2446
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});
2465
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	4325	}
2471
2472	register "<global>", __PACKAGE__;
2473		4326
2474	register_command "reload" => sub {	4327	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	4328	my ($who, $arg) = @_;
2476		4329
2477	if ($who->flag (FLAG_WIZ)) {	4330	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	4331	$who->message ("reloading server.");
		4332	async {
		4333	$Coro::current->{desc} = "perl_reload";
		4334	reload_perl;
		4335	};
2481	}	4336	}
2482	};	4337	};
2483		4338
2484	unshift @INC, $LIBDIR;	4339	#############################################################################
2485		4340
2486	$TICK_WATCHER = Event->timer (	4341	my $bug_warning = 0;
2487	reentrant => 0,
2488	prio => 0,
2489	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,
2491	cb => sub {
2492	cf::server_tick; # one server iteration
2493	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;
2495		4342
		4343	sub wait_for_tick() {
		4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4345
		4346	$WAIT_FOR_TICK->wait;
		4347	}
		4348
		4349	sub wait_for_tick_begin() {
		4350	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4351
		4352	my $signal = new Coro::Signal;
		4353	push @WAIT_FOR_TICK_BEGIN, $signal;
		4354	$signal->wait;
		4355	}
		4356
		4357	sub tick {
		4358	if ($Coro::current != $Coro::main) {
		4359	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4360	unless ++$bug_warning > 10;
		4361	return;
		4362	}
		4363
		4364	cf::one_tick; # one server iteration
		4365
		4366	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4367
		4368	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4369	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4370	Coro::async_pool {
		4371	$Coro::current->{desc} = "runtime saver";
		4372	write_runtime_sync
		4373	or error "ERROR: unable to write runtime file: $!";
		4374	};
		4375	}
		4376
		4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4378	$sig->send;
		4379	}
2496	$WAIT_FOR_TICK->broadcast;	4380	$WAIT_FOR_TICK->broadcast;
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2498		4381
2499	# if we are delayed by four ticks or more, skip them all	4382	$LOAD = ($NOW - $TICK_START) / $TICK;
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2501		4384
2502	$TICK_WATCHER->at ($NEXT_TICK);	4385	if (0) {
2503	$TICK_WATCHER->start;	4386	if ($NEXT_TICK) {
		4387	my $jitter = $TICK_START - $NEXT_TICK;
		4388	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4389	debug "jitter $JITTER\n";#d#
		4390	}
2504	},	4391	}
2505	);	4392	}
2506		4393
		4394	{
		4395	# configure BDB
		4396	info "initialising database";
		4397
		4398	BDB::min_parallel 16;
		4399	BDB::max_poll_reqs $TICK * 0.1;
		4400	#$AnyEvent::BDB::WATCHER->priority (1);
		4401
		4402	unless ($DB_ENV) {
		4403	$DB_ENV = BDB::db_env_create;
		4404	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4405	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4406	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4407	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4408	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4409
		4410	cf::sync_job {
		4411	eval {
		4412	BDB::db_env_open
		4413	$DB_ENV,
		4414	$BDBDIR,
		4415	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4416	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4417	0666;
		4418
		4419	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4420	};
		4421
		4422	cf::cleanup "db_env_open(db): $@" if $@;
		4423	};
		4424	}
		4425
		4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4428	};
		4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4431	};
		4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
		4435
		4436	info "database initialised";
		4437	}
		4438
		4439	{
		4440	# configure IO::AIO
		4441
		4442	info "initialising aio";
		4443	IO::AIO::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	4444	IO::AIO::max_poll_time $TICK * 0.1;
		4445	undef $AnyEvent::AIO::WATCHER;
		4446	info "aio initialised";
		4447	}
2508		4448
2509	Event->io (	4449	our $_log_backtrace;
2510	fd => IO::AIO::poll_fileno,	4450	our $_log_backtrace_last;
2511	poll => 'r',
2512	prio => 5,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516		4451
2517	Event->timer (	4452	sub _log_backtrace {
2518	data => WF_AUTOCANCEL,	4453	my ($msg, @addr) = @_;
2519	after => 0,	4454
2520	interval => 10,	4455	$msg =~ s/\n$//;
2521	cb => sub {	4456
2522	(Coro::unblock_sub {	4457	if ($_log_backtrace_last eq $msg) {
2523	write_runtime	4458	LOG llevInfo, "[ABT] $msg\n";
2524	or warn "ERROR: unable to write runtime file: $!";	4459	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4460	# limit the # of concurrent backtraces
		4461	} elsif ($_log_backtrace < 2) {
		4462	$_log_backtrace_last = $msg;
		4463	++$_log_backtrace;
		4464	my $perl_bt = Carp::longmess $msg;
		4465	async {
		4466	$Coro::current->{desc} = "abt $msg";
		4467
		4468	my @bt = fork_call {
		4469	@addr = map { sprintf "%x", $_ } @addr;
		4470	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4471	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4472	or die "addr2line: $!";
		4473
		4474	my @funcs;
		4475	my @res = <$fh>;
		4476	chomp for @res;
		4477	while (@res) {
		4478	my ($func, $line) = splice @res, 0, 2, ();
		4479	push @funcs, "[$func] $line";
		4480	}
		4481
		4482	@funcs
		4483	};
		4484
		4485	LOG llevInfo, "[ABT] $perl_bt\n";
		4486	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4487	LOG llevInfo, "[ABT] $_\n" for @bt;
		4488	--$_log_backtrace;
2525	})->();	4489	};
		4490	} else {
		4491	LOG llevInfo, "[ABT] $msg\n";
		4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2526	},	4493	}
2527	);	4494	}
		4495
		4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
2528		4499
2529	END { cf::emergency_save }	4500	END { cf::emergency_save }
2530		4501
2531	1	4502	1
2532		4503

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