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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC vs.
Revision 1.601 by root, Sun Nov 11 05:53:12 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
9	use Event;	30	use EV;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
13		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
14	use Coro 3.52 ();	41	use Coro ();
15	use Coro::State;	42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
16	use Coro::Event;	45	use Coro::AnyEvent;
17	use Coro::Timer;	46	use Coro::Timer;
18	use Coro::Signal;	47	use Coro::Signal;
19	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
20	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
21	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
22		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
23	use BDB ();	58	use BDB ();
24	use Data::Dumper;	59	use Data::Dumper;
25	use Digest::MD5;
26	use Fcntl;	60	use Fcntl;
27	use YAML::Syck ();	61	use YAML::XS ();
28	use IO::AIO 2.32 ();	62	use IO::AIO ();
29	use Time::HiRes;
30	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
31		67
32	# configure various modules to our taste	68	# configure various modules to our taste
33	#	69	#
34	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37		78
38	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
39		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		81
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
46		85
47	our %COMMAND = ();	86	our %COMMAND = ();
48	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
49		88
50	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
54		96
55	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	98	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
58		101
59	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	103
61	our $AIO_POLL_WATCHER;	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(!)
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	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;
64	our $NOW;	144	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off
66		145
67	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
68	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
69
70	our %CFG;
71
72	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;
74
75	our %PLAYER; # all users
76	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
83		149
84	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
87	binmode STDOUT;	166	binmode STDOUT;
88	binmode STDERR;	167	binmode STDERR;
89		168
90	# read virtual server time, if available	169	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
92	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
93	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
94	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
95	}	174	}
96		175
97	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
98	mkdir cf::localdir . "/" . cf::playerdir;	177
99	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
100	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		180
104	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
105		182
106	sub cf::map::normalise;	183	sub cf::map::normalise;
107		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
108	#############################################################################	189	#############################################################################
109		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
110	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
111		203
112	=over 4	204	=over 4
113		205
114	=item $cf::UPTIME	206	=item $cf::UPTIME
115		207
116	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.
117		224
118	=item $cf::RUNTIME	225	=item $cf::RUNTIME
119		226
120	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
121	every server tick.	228	every server tick.
122		229
123	=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
124		233
125	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
126	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.
127		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
128	=item $cf::NOW	245	=item $cf::LOAD
129		246
130	The time of the last (current) server tick.	247	The raw value load value from the last tick.
131
132	=item $cf::TICK
133
134	The interval between server ticks, in seconds.
135		248
136	=item %cf::CFG	249	=item %cf::CFG
137		250
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
139	from wherever your confdir points to.	252	from wherever your confdir points to.
140		253
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		255
143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
144	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
145	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
146	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
147		289
148	=back	290	=back
149		291
150	=cut	292	=cut
151		293
152	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
153	*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 {
154	my $msg = join "", @_;	301	my $msg = join "", @_;
155	utf8::encode $msg;
156		302
157	$msg .= "\n"	303	$msg .= "\n"
158	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
159		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
160	LOG llevError, $msg;	308	LOG llevWarn, $msg;
161	};	309	};
162	}	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	};
163		324
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		332
171	# 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
172	# within the Safe compartment.	334	# within the Safe compartment.
173	for my $pkg (qw(	335	for my $pkg (qw(
174	cf::global cf::attachable	336	cf::global cf::attachable
175	cf::object cf::object::player	337	cf::object cf::object::player
176	cf::client cf::player	338	cf::client cf::player
177	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
178	cf::map cf::party cf::region	341	cf::party cf::region
179	)) {	342	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	344	}
183		345
184	$Event::DIED = sub {	346	$EV::DIED = sub {
185	warn "error in event callback: @_";	347	warn "error in event callback: $@";
186	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
187		356
188	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
189		358
190	=over 4	359	=over 4
191		360
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	380	$d
212	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
213	}	382	}
214		383
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
216		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
217	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
218		437
219	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
220		439
221	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
222		441
223	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
224		443
		444	=cut
		445
		446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		447
		448	sub encode_json($) { $json_coder->encode ($_[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	}
		511	}
		512
225	=item cf::lock_wait $string	513	=item cf::lock_wait $string
226		514
227	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
228		516
229	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
230		518
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
234	returned.	522	returned.
235		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
236	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
237	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
238		529
239	=cut	530	=item $locked = cf::lock_active $string
240		531
241	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
242		537
243	sub lock_wait($) {	538	sub lock_wait($) {
244	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	540	}
252		541
253	sub lock_acquire($) {	542	sub lock_acquire($) {
254	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
255		545
256	# wait, to be sure we are not locked	546	sub lock_active($) {
257	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	548	}
266		549
267	sub freeze_mainloop {	550	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
269		552
270	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
272	};	623	}
273	$TICK_WATCHER->stop;	624	};
274	$guard	625
		626	sub get_slot($;$$) {
		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	$sig->wait;
275	}	639	}
276		640
277	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
278		642
279	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		648
285	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
286		650
287	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
288		652
289	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
292		657
293	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
296	fast or be very important.	661	fast or be very important.
…		…
298	=cut	663	=cut
299		664
300	sub sync_job(&) {	665	sub sync_job(&) {
301	my ($job) = @_;	666	my ($job) = @_;
302		667
303	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
304	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
306		673
307	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	675
309	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
310		677
311	my $busy = 1;	678	my $busy = 1;
312	my @res;	679	my @res;
313		680
314	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	683	@res = eval { $job->() };
316	warn $@ if $@;	684	error $@ if $@;
317	undef $busy;	685	undef $busy;
318	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
319		687
320	while ($busy) {	688	while ($busy) {
321	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
322	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
323		699
324	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
325	} else {	701	} else {
326	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
327		703
…		…
347	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
348		724
349	$coro	725	$coro
350	}	726	}
351		727
352	sub write_runtime {	728	=item fork_call { }, @args
353	my $guard = cf::lock_acquire "write_runtime";
354		729
355	my $runtime = cf::localdir . "/runtime";	730	Executes the given code block with the given arguments in a seperate
		731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
356		734
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
358	or return;
359		736
360	my $value = $cf::RUNTIME + 90 + 10;	737	sub post_fork {
361	# 10 is the runtime save interval, for a monotonic clock	738	reset_signals;
362	# 60 allows for the watchdog to kill the server.	739	}
363		740
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	741	sub fork_call(&@) {
365	and return;	742	my ($cb, @args) = @_;
366		743
367	# always fsync - this file is important	744	# we seemingly have to make a local copy of the whole thing,
368	aio_fsync $fh	745	# otherwise perl prematurely frees the stuff :/
369	and return;	746	# TODO: investigate and fix (likely this will be rather laborious)
370		747
371	close $fh	748	my @res = Coro::Util::fork_eval {
372	or return;	749	cf::post_fork;
		750	&$cb
		751	} @args;
373		752
374	aio_rename "$runtime~", $runtime	753	wantarray ? @res : $res[-1]
375	and return;	754	}
376		755
		756	sub objinfo {
377	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = EV::time;
		907	my $data = $process->(\@data);
		908	my $t2 = EV::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
378	}	920	}
379		921
380	=item cf::datalog type => key => value, ...	922	=item cf::datalog type => key => value, ...
381		923
382	Log a datalog packet of the given type with the given key-value pairs.	924	Log a datalog packet of the given type with the given key-value pairs.
383		925
384	=cut	926	=cut
385		927
386	sub datalog($@) {	928	sub datalog($@) {
387	my ($type, %kv) = @_;	929	my ($type, %kv) = @_;
388	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
389	}	931	}
390		932
391	=back	933	=back
392		934
393	=cut	935	=cut
394		936
395	#############################################################################	937	#############################################################################
396		938
397	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
398		940
399	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
402		944
403	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	947	Deliantra).
406		948
407	=over 4	949	=over 4
408		950
409	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
410		952
…		…
454	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
455		997
456	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
458		1000
459	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
461		1003
462	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
463		1005
464	=over 4	1006	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
574		1116
575	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		1121
580	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
582		1124
583	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
588		1130
589	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
590	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
591		1133
592	} elsif (ref $type) {	1134	} elsif (ref $type) {
593	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
594		1136
595	} else {	1137	} else {
596	shift @arg;	1138	shift @arg;
597	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
598	}	1140	}
599	}	1141	}
600	}	1142	}
601		1143
602	sub _object_attach {	1144	sub _object_attach {
…		…
612	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
613	}	1155	}
614		1156
615	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
616	} else {	1158	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
618	}	1160	}
619		1161
620	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
621	}	1163	}
622		1164
…		…
624	if (ref $_[0]) {	1166	if (ref $_[0]) {
625	_object_attach @_;	1167	_object_attach @_;
626	} else {	1168	} else {
627	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
628	}	1170	}
		1171	_recalc_want;
629	};	1172	};
630		1173
631	# all those should be optimised	1174	# all those should be optimised
632	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1180	reattach ($obj);
638	} else {	1181	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
640	}	1183	}
		1184	_recalc_want;
641	};	1185	};
642		1186
643	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
645		1189
…		…
660	";	1204	";
661	die if $@;	1205	die if $@;
662	}	1206	}
663		1207
664	our $override;	1208	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1210
667	sub override {	1211	sub override {
668	$override = 1;	1212	$override = 1;
669	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
670	}	1214	}
671		1215
672	sub do_invoke {	1216	sub do_invoke {
673	my $event = shift;	1217	my $event = shift;
674	my $callbacks = shift;	1218	my $callbacks = shift;
675		1219
676	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
677		1221
678	local $override;	1222	local $override;
679		1223
680	for (@$callbacks) {	1224	for (@$callbacks) {
681	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
682		1226
683	if ($@) {	1227	if ($@) {
684	warn "$@";
685	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
686	override;	1229	override;
687	}	1230	}
688		1231
689	return 1 if $override;	1232	return 1 if $override;
690	}	1233	}
691		1234
692	0	1235	0
693	}	1236	}
694		1237
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1239
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1241
699	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
700		1243
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1247
705	=back	1248	=back
706		1249
707	=cut	1250	=cut
708		1251
709	#############################################################################	1252	#############################################################################
710	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
711		1296
712	sub reattach {	1297	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1299	my ($obj) = @_;
715		1300
		1301	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1303
718	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
719		1305
720	@$registry = ();	1306	@$registry = ();
721		1307
…		…
726	for (@$attach) {	1312	for (@$attach) {
727	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
728	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
729	}	1315	}
730	} else {	1316	} else {
731	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
732	}	1318	}
733	}	1319	}
734	}	1320	}
735		1321
736	cf::attachable->attach (	1322	cf::attachable->attach (
737	prio => -1000000,	1323	prio => -1000000,
738	on_instantiate => sub {	1324	on_instantiate => sub {
739	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
740		1326
741	$data = from_json $data;	1327	$data = decode_json $data;
742		1328
743	for (@$data) {	1329	for (@$data) {
744	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
745		1331
746	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1348	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
764		1350
765	sync_job {	1351	sync_job {
766	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
769		1357
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1361	if ($cf::USE_FSYNC) {
		1362	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;
		1363	aio_fsync $fh;
		1364	}
774	close $fh;	1365	aio_close $fh;
775		1366
776	if (@$objs) {	1367	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1372	if ($cf::USE_FSYNC) {
		1373	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;
		1374	aio_fsync $fh;
		1375	}
782	close $fh;	1376	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
784	}	1378	}
785	} else {	1379	} else {
786	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
787	}	1381	}
788		1382
789	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1387	} else {
791	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
792	}	1389	}
793	} else {	1390	} else {
794	aio_unlink $filename;	1391	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
796	}	1393	}
797	}	1394	};
798	}	1395	}
799		1396
800	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
802		1399
…		…
814	or return;	1411	or return;
815		1412
816	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
818	or return;	1415	or return;
		1416
819	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
820	}	1419	}
821		1420
		1421	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
824	return ($data, $av);	1426	($data, $av)
825	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
826		1434
827	#############################################################################	1435	#############################################################################
828	# command handling &c	1436	# command handling &c
829		1437
830	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
831		1439
832	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
833	$name.	1441	$name.
834		1442
835	=cut	1443	=cut
…		…
841	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
842		1450
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1452	}
845		1453
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
847		1455
848	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
849		1461
850	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
851	called.
852		1463
853	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
854		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
855	sub register_extcmd {	1486	sub register_extcmd($$) {
856	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
857		1488
858	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
859	}	1490	}
860		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
861	cf::player->attach (	1512	cf::player->attach (
862	on_command => sub {	1513	on_unknown_command => sub {
863	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
864		1515
865	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
866	or return;	1517	or return;
867		1518
…		…
872	cf::override;	1523	cf::override;
873	},	1524	},
874	on_extcmd => sub {	1525	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
876		1527
877	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1529
879	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
882	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
883	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
884	}	1551	}
		1552
885	} else {	1553	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1555	}
888		1556
889	cf::override;	1557	cf::override;
890	},	1558	},
891	);	1559	);
892		1560
		1561	# "readahead" all extensions
893	sub load_extension {	1562	sub cache_extensions {
894	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
895		1564
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1568	}
921	die $@;
922	}	1569	};
923		1570
924	push @EXTS, $pkg;	1571	$grp
		1572	}
		1573
		1574	sub _ext_cfg_reg($$$$) {
		1575	my ($rvar, $varname, $cfgname, $default) = @_;
		1576
		1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
925	}	1583	}
926		1584
927	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
928	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1594	next unless -r $path;
930	eval {	1595
931	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
932	1	1668	}
933	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
934	}	1681	};
935	}	1682	}
936		1683
937	#############################################################################	1684	#############################################################################
938		1685
		1686	=back
		1687
939	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
940		1689
941	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
942		1691
943	=cut	1692	=cut
944		1693
945	package cf::player;	1694	package cf::player;
946		1695
…		…
948		1697
949	=head3 cf::player	1698	=head3 cf::player
950		1699
951	=over 4	1700	=over 4
952		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
953	=item cf::player::find $login	1716	=item cf::player::find $login
954		1717
955	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
956		1719
957	=cut	1720	=cut
958		1721
959	sub playerdir($) {	1722	sub playerdir($) {
960	cf::localdir	1723	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1725	}
966		1726
967	sub path($) {	1727	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1738
979	sub exists($) {	1739	sub exists($) {
980	my ($login) = @_;	1740	my ($login) = @_;
981		1741
982	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1743	or !aio_stat path $login
984	}	1744	}
985		1745
986	sub find($) {	1746	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1748	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1758	aio_unlink +(playerdir $login) . "/$login.pl";
999		1759
1000	my $pl = load_pl path $login	1760	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1003	}	1769	}
1004	}	1770	}
1005	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1006		1785
1007	sub save($) {	1786	sub save($) {
1008	my ($pl) = @_;	1787	my ($pl) = @_;
1009		1788
1010	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1015	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1016		1795
1017	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1019		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1020	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1021	Coro::cede;	1805	cf::cede_to_tick;
1022	}	1806	}
1023		1807
1024	sub new($) {	1808	sub new($) {
1025	my ($login) = @_;	1809	my ($login) = @_;
1026		1810
…		…
1032	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1033		1817
1034	$self	1818	$self
1035	}	1819	}
1036		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1037	=item $pl->quit_character	1831	=item $pl->quit_character
1038		1832
1039	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1041		1835
…		…
1045	my ($pl) = @_;	1839	my ($pl) = @_;
1046		1840
1047	my $name = $pl->ob->name;	1841	my $name = $pl->ob->name;
1048		1842
1049	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1845
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1053	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1055	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1056		1854
1057	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1059	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
…		…
1088	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1089		1887
1090	=cut	1888	=cut
1091		1889
1092	sub list_logins {	1890	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1892	or return [];
1095		1893
1096	my @logins;	1894	my @logins;
1097		1895
1098	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1102		1906
1103	utf8::decode $login;	1907	utf8::decode $login;
1104	push @logins, $login;	1908	push @logins, $login;
1105	}	1909	}
1106		1910
1107	\@logins	1911	\@logins
1108	}	1912	}
1109		1913
1110	=item $player->maps	1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
1111		1917
1112	Returns an arrayref of map paths that are private for this	1918	Returns an arrayref of map paths that are private for this
1113	player. May block.	1919	player. May block.
1114		1920
1115	=cut	1921	=cut
…		…
1133	}	1939	}
1134		1940
1135	\@paths	1941	\@paths
1136	}	1942	}
1137		1943
1138	=item $player->ext_reply ($msgid, %msg)	1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1139		1945
1140	Sends an ext reply to the player.	1946	Expand deliantra pod fragments into protocol xml.
1141		1947
1142	=cut
1143
1144	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;
1146
1147	$msg{msgid} = $id;
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}
1151
1152	=item $player->ext_event ($type, %msg)	1948	=item $player->ext_msg ($type, @msg)
1153		1949
1154	Sends an ext event to the client.	1950	Sends an ext event to the client.
1155		1951
1156	=cut	1952	=cut
1157		1953
1158	sub ext_event($$%) {	1954	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1160		1956
1161	$self->ns->ext_event ($type, %msg);	1957	$self->ns->ext_msg ($type, @msg);
1162	}	1958	}
1163		1959
1164	package cf;	1960	=head3 cf::region
		1961
		1962	=over 4
		1963
		1964	=cut
		1965
		1966	package cf::region;
		1967
		1968	=item cf::region::find_by_path $path
		1969
		1970	Tries to decuce the likely region for a map knowing only its path.
		1971
		1972	=cut
		1973
		1974	sub find_by_path($) {
		1975	my ($path) = @_;
		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
		1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
		1989	}
1165		1990
1166	=back	1991	=back
1167
1168		1992
1169	=head3 cf::map	1993	=head3 cf::map
1170		1994
1171	=over 4	1995	=over 4
1172		1996
…		…
1184	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1185	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1186		2010
1187	sub generate_random_map {	2011	sub generate_random_map {
1188	my ($self, $rmp) = @_;	2012	my ($self, $rmp) = @_;
1189	# mit "rum" bekleckern, nicht	2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
1190	$self->_create_random_map (	2016	$self->_create_random_map ($rmp);
1191	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1192	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1193	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1194	$rmp->{exit_on_final_map},
1195	$rmp->{xsize}, $rmp->{ysize},
1196	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1197	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1198	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1199	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1200	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1201	(cf::region::find $rmp->{region}), $rmp->{custom}
1202	)
1203	}	2017	}
1204		2018
1205	=item cf::map->register ($regex, $prio)	2019	=item cf::map->register ($regex, $prio)
1206		2020
1207	Register a handler for the map path matching the given regex at the	2021	Register a handler for the map path matching the given regex at the
…		…
1212		2026
1213	sub register {	2027	sub register {
1214	my (undef, $regex, $prio) = @_;	2028	my (undef, $regex, $prio) = @_;
1215	my $pkg = caller;	2029	my $pkg = caller;
1216		2030
1217	no strict;
1218	push @{"$pkg\::ISA"}, __PACKAGE__;	2031	push @{"$pkg\::ISA"}, __PACKAGE__;
1219		2032
1220	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1221	}	2034	}
1222		2035
1223	# also paths starting with '/'	2036	# also paths starting with '/'
1224	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1225		2038
1226	sub thawer_merge {	2039	sub thawer_merge {
1227	my ($self, $merge) = @_;	2040	my ($self, $merge) = @_;
1228		2041
1229	# we have to keep some variables in memory intact	2042	# we have to keep some variables in memory intact
1230	local $self->{path};	2043	local $self->{path};
1231	local $self->{load_path};	2044	local $self->{load_path};
1232	local $self->{deny_save};
1233	local $self->{deny_reset};
1234		2045
1235	$self->SUPER::thawer_merge ($merge);	2046	$self->SUPER::thawer_merge ($merge);
1236	}	2047	}
1237		2048
1238	sub normalise {	2049	sub normalise {
1239	my ($path, $base) = @_;	2050	my ($path, $base) = @_;
1240		2051
1241	$path = "$path"; # make sure its a string	2052	$path = "$path"; # make sure it's a string
1242		2053
1243	$path =~ s/\.map$//;	2054	$path =~ s/\.map$//;
1244		2055
1245	# map plan:	2056	# map plan:
1246	#	2057	#
…		…
1261	$base =~ s{[^/]+/?$}{};	2072	$base =~ s{[^/]+/?$}{};
1262	$path = "$base/$path";	2073	$path = "$base/$path";
1263	}	2074	}
1264		2075
1265	for ($path) {	2076	for ($path) {
1266	redo if s{//}{/};
1267	redo if s{/\.?/}{/};	2077	redo if s{/\.?/}{/};
1268	redo if s{/[^/]+/\.\./}{/};	2078	redo if s{/[^/]+/\.\./}{/};
1269	}	2079	}
1270		2080
1271	$path	2081	$path
…		…
1285	$self->init; # pass $1 etc.	2095	$self->init; # pass $1 etc.
1286	return $self;	2096	return $self;
1287	}	2097	}
1288	}	2098	}
1289		2099
1290	Carp::carp "unable to resolve path '$path' (base '$base').";	2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1291	()	2101	()
1292	}	2102	}
1293		2103
		2104	# may re-bless or do other evil things
1294	sub init {	2105	sub init {
1295	my ($self) = @_;	2106	my ($self) = @_;
1296		2107
1297	$self	2108	$self
1298	}	2109	}
…		…
1310		2121
1311	# the original (read-only) location	2122	# the original (read-only) location
1312	sub load_path {	2123	sub load_path {
1313	my ($self) = @_;	2124	my ($self) = @_;
1314		2125
1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2126	"$MAPDIR/$self->{path}.map"
1316	}	2127	}
1317		2128
1318	# the temporary/swap location	2129	# the temporary/swap location
1319	sub save_path {	2130	sub save_path {
1320	my ($self) = @_;	2131	my ($self) = @_;
1321		2132
1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2134	"$TMPDIR/$path.map"
1324	}	2135	}
1325		2136
1326	# the unique path, undef == no special unique path	2137	# the unique path, undef == no special unique path
1327	sub uniq_path {	2138	sub uniq_path {
1328	my ($self) = @_;	2139	my ($self) = @_;
1329		2140
1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2142	"$UNIQUEDIR/$path"
1332	}	2143	}
1333		2144
1334	# and all this just because we cannot iterate over	2145	sub decay_objects {
1335	# all maps in C++...
1336	sub change_all_map_light {
1337	my ($change) = @_;	2146	my ($self) = @_;
1338		2147
1339	$_->change_map_light ($change)	2148	return if $self->{deny_reset};
1340	for grep $_->outdoor, values %cf::MAP;	2149
		2150	$self->do_decay_objects;
1341	}	2151	}
1342		2152
1343	sub unlink_save {	2153	sub unlink_save {
1344	my ($self) = @_;	2154	my ($self) = @_;
1345		2155
…		…
1350		2160
1351	sub load_header_from($) {	2161	sub load_header_from($) {
1352	my ($self, $path) = @_;	2162	my ($self, $path) = @_;
1353		2163
1354	utf8::encode $path;	2164	utf8::encode $path;
1355	#aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1356	# or return;
1357
1358	$self->_load_header ($path)
1359	or return;	2166	or return;
1360		2167
		2168	$self->_load_header ($f)
		2169	or return;
		2170
		2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
1361	$self->{load_path} = $path;	2174	$self->{load_path} = $path;
1362		2175
1363	1	2176	1
1364	}	2177	}
1365		2178
		2179	# used to laod the header of an original map
1366	sub load_header_orig {	2180	sub load_header_orig {
1367	my ($self) = @_;	2181	my ($self) = @_;
1368		2182
1369	$self->load_header_from ($self->load_path)	2183	$self->load_header_from ($self->load_path)
1370	}	2184	}
1371		2185
		2186	# used to laod the header of an instantiated map
1372	sub load_header_temp {	2187	sub load_header_temp {
1373	my ($self) = @_;	2188	my ($self) = @_;
1374		2189
1375	$self->load_header_from ($self->save_path)	2190	$self->load_header_from ($self->save_path)
1376	}	2191	}
1377		2192
		2193	# called after loading the header from an instantiated map
1378	sub prepare_temp {	2194	sub prepare_temp {
1379	my ($self) = @_;	2195	my ($self) = @_;
1380		2196
1381	$self->last_access ((delete $self->{last_access})	2197	$self->last_access ((delete $self->{last_access})
1382	|| $cf::RUNTIME); #d#	2198	|| $cf::RUNTIME); #d#
1383	# safety	2199	# safety
1384	$self->{instantiate_time} = $cf::RUNTIME	2200	$self->{instantiate_time} = $cf::RUNTIME
1385	if $self->{instantiate_time} > $cf::RUNTIME;	2201	if $self->{instantiate_time} > $cf::RUNTIME;
1386	}	2202	}
1387		2203
		2204	# called after loading the header from an original map
1388	sub prepare_orig {	2205	sub prepare_orig {
1389	my ($self) = @_;	2206	my ($self) = @_;
1390		2207
1391	$self->{load_original} = 1;	2208	$self->{load_original} = 1;
1392	$self->{instantiate_time} = $cf::RUNTIME;	2209	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1403	$self->load_header_orig	2220	$self->load_header_orig
1404	or return;	2221	or return;
1405	$self->prepare_orig;	2222	$self->prepare_orig;
1406	}	2223	}
1407		2224
		2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
		2227
		2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
1408	1	2231	1
1409	}	2232	}
1410		2233
1411	sub find;	2234	sub find;
1412	sub find {	2235	sub find {
1413	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1414		2237
		2238	cf::cede_to_tick;
		2239
1415	$path = normalise $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1416		2241
		2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1417	cf::lock_wait "map_find:$path";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1418		2244
1419	$cf::MAP{$path} || do {	2245	$cf::MAP{$path} || do {
1420	my $guard = cf::lock_acquire "map_find:$path";
1421	my $map = new_from_path cf::map $path	2246	my $map = new_from_path cf::map $path
1422	or return;	2247	or return;
1423		2248
1424	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1425		2250
1426	$map->load_header	2251	$map->load_header
1427	or return;	2252	or return;
1428		2253
1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1430	# doing this can freeze the server in a sync job, obviously	2255	# doing this can freeze the server in a sync job, obviously
1431	#$cf::WAIT_FOR_TICK->wait;	2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1432	$map->reset;	2259	$map->reset;
1433	undef $guard;
1434	return find $path;	2260	return find $path;
1435	}	2261	}
1436		2262
1437	$cf::MAP{$path} = $map	2263	$cf::MAP{$path} = $map
1438	}	2264	}
1439	}	2265	}
1440		2266
1441	sub pre_load { }	2267	sub pre_load { }
1442	sub post_load { }	2268	#sub post_load { } # XS
1443		2269
1444	sub load {	2270	sub load {
1445	my ($self) = @_;	2271	my ($self) = @_;
1446		2272
1447	local $self->{deny_reset} = 1; # loading can take a long time	2273	local $self->{deny_reset} = 1; # loading can take a long time
1448		2274
1449	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1450	my $guard = cf::lock_acquire "map_load:$path";	2278	my $guard = cf::lock_acquire "map_data:$path";
1451		2279
1452	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1453		2282
1454	$self->in_memory (cf::MAP_LOADING);
1455
1456	$self->alloc;	2283	$self->alloc;
1457		2284
1458	$self->pre_load;	2285	$self->pre_load;
		2286	cf::cede_to_tick;
1459		2287
1460	$self->_load_objects ($self->{load_path}, 1)	2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1461	or return;	2292	or return;
1462		2293
1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1464	if delete $self->{load_original};	2295	if delete $self->{load_original};
1465		2296
1466	if (my $uniq = $self->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1467	utf8::encode $uniq;	2298	utf8::encode $uniq;
1468	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1469	$self->clear_unique_items;	2301	$self->clear_unique_items;
1470	$self->_load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1471	}	2306	}
1472	}
1473		2307
1474	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1475		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1476	# now do the right thing for maps	2317	# now do the right thing for maps
1477	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1478
1479	unless ($self->{deny_activate}) {
1480	$self->decay_objects;
1481	$self->fix_auto_apply;
1482	$self->update_buttons;
1483	Coro::cede;
1484	$self->set_darkness_map;
1485	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1486	unless $self->difficulty;	2320	unless $self->difficulty;
1487	Coro::cede;	2321	cf::cede_to_tick;
1488	$self->activate;	2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
1489	}	2333	}
1490		2334
1491	$self->post_load;	2335	$self->post_load;
1492		2336
1493	$self->in_memory (cf::MAP_IN_MEMORY);	2337	1
1494	}	2338	}
1495		2339
		2340	# customize the map for a given player, i.e.
		2341	# return the _real_ map. used by e.g. per-player
		2342	# maps to change the path to ~playername/mappath
1496	sub customise_for {	2343	sub customise_for {
1497	my ($self, $ob) = @_;	2344	my ($self, $ob) = @_;
1498		2345
1499	return find "~" . $ob->name . "/" . $self->{path}	2346	return find "~" . $ob->name . "/" . $self->{path}
1500	if $self->per_player;	2347	if $self->per_player;
1501		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
1502	$self	2352	$self
1503	}
1504
1505	# find and load all maps in the 3x3 area around a map
1506	sub load_diag {
1507	my ($map) = @_;
1508
1509	my @diag; # diagonal neighbours
1510
1511	for (0 .. 3) {
1512	my $neigh = $map->tile_path ($_)
1513	or next;
1514	$neigh = find $neigh, $map
1515	or next;
1516	$neigh->load;
1517
1518	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1519	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1520	}
1521
1522	for (@diag) {
1523	my $neigh = find @$_
1524	or next;
1525	$neigh->load;
1526	}
1527	}	2353	}
1528		2354
1529	sub find_sync {	2355	sub find_sync {
1530	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1531		2357
1532	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1533	}	2363	}
1534		2364
1535	sub do_load_sync {	2365	sub do_load_sync {
1536	my ($map) = @_;	2366	my ($map) = @_;
1537		2367
1538	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1539	}	2373	}
1540		2374
1541	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
1542	our $MAP_PREFETCHER = undef;	2376	our $MAP_PREFETCHER = undef;
1543		2377
1544	sub find_async {	2378	sub find_async {
1545	my ($path, $origin) = @_;	2379	my ($path, $origin, $load) = @_;
1546		2380
1547	$path = normalise $path, $origin && $origin->{path};	2381	$path = normalise $path, $origin;
1548		2382
1549	if (my $map = $cf::MAP{$path}) {	2383	if (my $map = $cf::MAP{$path}) {
1550	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2384	return $map if !$load || $map->linkable;
1551	}	2385	}
1552		2386
1553	undef $MAP_PREFETCH{$path};	2387	$MAP_PREFETCH{$path} |= $load;
		2388
1554	$MAP_PREFETCHER ||= cf::async {	2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
1555	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1556	for my $path (keys %MAP_PREFETCH) {	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1557	my $map = find $path	2394	if (my $map = find $k) {
1558	or next;
1559	$map->load;	2395	$map->load if $v;
		2396	}
1560		2397
1561	delete $MAP_PREFETCH{$path};	2398	delete $MAP_PREFETCH{$k};
1562	}	2399	}
1563	}	2400	}
1564	undef $MAP_PREFETCHER;	2401	undef $MAP_PREFETCHER;
1565	};	2402	};
1566	$MAP_PREFETCHER->prio (6);	2403	$MAP_PREFETCHER->prio (6);
1567		2404
1568	()	2405	()
1569	}	2406	}
1570		2407
		2408	# common code, used by both ->save and ->swapout
1571	sub save {	2409	sub _save {
1572	my ($self) = @_;	2410	my ($self) = @_;
1573
1574	my $lock = cf::lock_acquire "map_data:" . $self->path;
1575		2411
1576	$self->{last_save} = $cf::RUNTIME;	2412	$self->{last_save} = $cf::RUNTIME;
1577		2413
1578	return unless $self->dirty;	2414	return unless $self->dirty;
1579		2415
…		…
1585	return if $self->{deny_save};	2421	return if $self->{deny_save};
1586		2422
1587	local $self->{last_access} = $self->last_access;#d#	2423	local $self->{last_access} = $self->last_access;#d#
1588		2424
1589	cf::async {	2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
1590	$_->contr->save for $self->players;	2427	$_->contr->save for $self->players;
1591	};	2428	};
		2429
		2430	cf::get_slot 0.02;
1592		2431
1593	if ($uniq) {	2432	if ($uniq) {
1594	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1595	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1596	} else {	2435	} else {
1597	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1598	}	2437	}
1599	}	2438	}
1600		2439
		2440	sub save {
		2441	my ($self) = @_;
		2442
		2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2444
		2445	$self->_save;
		2446	}
		2447
1601	sub swap_out {	2448	sub swap_out {
1602	my ($self) = @_;	2449	my ($self) = @_;
1603		2450
1604	# save first because save cedes
1605	$self->save;
1606
1607	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1609	return if $self->players;	2455	return if $self->players;
1610	return if $self->in_memory != cf::MAP_IN_MEMORY;
1611	return if $self->{deny_save};
1612		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1613	$self->clear;	2466	$self->clear;
1614	$self->in_memory (cf::MAP_SWAPPED);
1615	}	2467	}
1616		2468
1617	sub reset_at {	2469	sub reset_at {
1618	my ($self) = @_;	2470	my ($self) = @_;
1619		2471
1620	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
1622	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1623		2474
1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1626		2477
…		…
1637	my ($self) = @_;	2488	my ($self) = @_;
1638		2489
1639	my $lock = cf::lock_acquire "map_data:$self->{path}";	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2491
1641	return if $self->players;	2492	return if $self->players;
1642	return if $self->isa ("ext::map_per_player");#d#
1643		2493
1644	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
1645		2495
1646	$self->in_memory (cf::MAP_SWAPPED);	2496	$self->state (cf::MAP_SWAPPED);
1647		2497
1648	# need to save uniques path	2498	# need to save uniques path
1649	unless ($self->{deny_save}) {	2499	unless ($self->{deny_save}) {
1650	my $uniq = $self->uniq_path; utf8::encode $uniq;	2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
1651		2501
…		…
1653	if $uniq;	2503	if $uniq;
1654	}	2504	}
1655		2505
1656	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1657		2507
		2508	$self->deactivate;
		2509	$_->clear_links_to ($self) for values %cf::MAP;
1658	$self->clear;	2510	$self->clear;
1659
1660	$_->clear_links_to ($self) for values %cf::MAP;
1661		2511
1662	$self->unlink_save;	2512	$self->unlink_save;
1663	$self->destroy;	2513	$self->destroy;
1664	}	2514	}
1665		2515
1666	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1667		2517
1668	sub nuke {	2518	sub nuke {
1669	my ($self) = @_;	2519	my ($self) = @_;
1670		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
1671	delete $cf::MAP{$self->path};	2524	delete $cf::MAP{$self->path};
1672		2525
1673	$self->unlink_save;	2526	$self->unlink_save;
1674		2527
1675	bless $self, "cf::map";	2528	bless $self, "cf::map::wrap";
1676	delete $self->{deny_reset};	2529	delete $self->{deny_reset};
1677	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1678	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1679	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1680		2533
1681	$cf::MAP{$self->path} = $self;	2534	$cf::MAP{$self->path} = $self;
		2535	}
1682		2536
1683	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
		2538	}
		2539
		2540	=item $maps = cf::map::tmp_maps
		2541
		2542	Returns an arrayref with all map paths of currently instantiated and saved
		2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
		2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
		2557
		2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
1684	}	2574	}
1685		2575
1686	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1687		2577
1688	Returns an arrayref of paths of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1689	instantiated unique items. May block.	2579	instantiated unique items. May block.
1690		2580
1691	=cut	2581	=cut
1692		2582
1693	sub unique_maps() {	2583	sub unique_maps() {
1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1695	or return;	2585	map {
1696
1697	my @paths;
1698
1699	for (@$files) {
1700	utf8::decode $_;	2586	utf8::decode $_;
1701	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1702	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1703		2589	? ()
1704	push @paths, cf::map::normalise $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1705	}	2592	]
1706
1707	\@paths
1708	}	2593	}
1709		2594
1710	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1711		2626
1712	=back	2627	=back
1713		2628
1714	=head3 cf::object	2629	=head3 cf::object
1715		2630
…		…
1719		2634
1720	=over 4	2635	=over 4
1721		2636
1722	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1723		2638
1724	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1725		2641
1726	=cut	2642	=cut
1727		2643
1728	sub inv_recursive_;	2644	sub inv_recursive_;
1729	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1732		2648
1733	sub inv_recursive {	2649	sub inv_recursive {
1734	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1735	}	2651	}
1736		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1737	package cf;	2681	package cf;
1738		2682
1739	=back	2683	=back
1740		2684
1741	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1747	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1748	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1749	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1750		2694
1751	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1752		2710
1753	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1754	# with dialog boxes.	2712	# with dialog boxes.
1755	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1756	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1758		2716
1759	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1760		2718
1761	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1762	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1763	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1764	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1765	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1766	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1767	}	2744	}
1768		2745
1769	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1770		2747
1771	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1784		2761
1785	=item $player_object->enter_link	2762	=item $player_object->enter_link
1786		2763
1787	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1788		2765
1789	The player should be reasonably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1790	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
1791		2770
1792	Will never block.	2771	Will never block.
1793		2772
1794	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1795		2774
…		…
1815	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1816	my ($self) = @_;	2795	my ($self) = @_;
1817		2796
1818	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1819		2798
		2799	++$self->{_link_recursion};
		2800
1820	return if UNIVERSAL::isa $self->map, "ext::map_link";	2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1821		2802
1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1823	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1824		2805
1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1826	}	2807	}
1827		2808
1828	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1829	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1830		2813
1831	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1832		2815
1833	unless ($map) {	2816	unless ($map) {
1834	# restore original map position	2817	# restore original map position
…		…
1845	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1846	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1847		2830
1848	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1849	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1850	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1851		2834
1852	$map->load;	2835	$map->load;
1853	$map->load_diag;
1854		2836
1855	return unless $self->contr->active;	2837	return unless $self->contr->active;
1856	$self->activate_recursive;
1857		2838
1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1859	$self->enter_map ($map, $x, $y);	2840	if ($self->enter_map ($map, $x, $y)) {
1860	}	2841	# entering was successful
1861		2842	delete $self->{_link_recursion};
1862	cf::player->attach (	2843	# only activate afterwards, to support waiting in hooks
1863	on_logout => sub {	2844	$self->activate_recursive;
1864	my ($pl) = @_;
1865
1866	# abort map switching before logout
1867	if ($pl->ob->{_link_pos}) {
1868	cf::sync_job {
1869	$pl->ob->leave_link
1870	};
1871	}
1872	},	2845	}
1873	on_login => sub {
1874	my ($pl) = @_;
1875		2846
1876	# try to abort aborted map switching on player login :)	2847	}
1877	# should happen only on crashes
1878	if ($pl->ob->{_link_pos}) {
1879	$pl->ob->enter_link;
1880	(async {
1881	$pl->ob->reply (undef,
1882	"There was an internal problem at your last logout, "
1883	. "the server will try to bring you to your intended destination in a second.",
1884	cf::NDI_RED);
1885	# we need this sleep as the login has a concurrent enter_exit running
1886	# and this sleep increases chances of the player not ending up in scorn
1887	Coro::Timer::sleep 1;
1888	$pl->ob->leave_link;
1889	})->prio (2);
1890	}
1891	},
1892	);
1893		2848
1894	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1895		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1896	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1897		2863
1898	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1899	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
		2866
		2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1900		2875
1901	$self->enter_link;	2876	$self->enter_link;
1902		2877
1903	(async {	2878	(async {
		2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
1904	my $map = eval {	2900	my $map = eval {
1905	my $map = cf::map::find $path;	2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1906	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
		2906	} else {
		2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
		2909
1907	$map	2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
1908	} or	2916	}
1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1910		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1911	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1912	})->prio (1);	2924	})->prio (1);
1913	}	2925	}
1914		2926
1915	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1916		2928
…		…
1936	}	2948	}
1937		2949
1938	sub prepare_random_map {	2950	sub prepare_random_map {
1939	my ($exit) = @_;	2951	my ($exit) = @_;
1940		2952
1941	my $guard = cf::lock_acquire "exit_prepare:$exit";
1942
1943	# all this does is basically replace the /! path by	2953	# all this does is basically replace the /! path by
1944	# a new random map path (?random/...) with a seed	2954	# a new random map path (?random/...) with a seed
1945	# that depends on the exit object	2955	# that depends on the exit object
1946		2956
1947	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
…		…
1949	if ($exit->map) {	2959	if ($exit->map) {
1950	$rmp->{region} = $exit->region->name;	2960	$rmp->{region} = $exit->region->name;
1951	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1952	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1953	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1954	}	2966	}
1955		2967
1956	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1957		2969
1958	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1959	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2972	my $meta = "$RANDOMDIR/$md5.meta";
1961		2973
1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1963	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
1964	undef $fh;	2976	undef $fh;
1965	aio_rename "$meta~", $meta;	2977	aio_rename "$meta~", $meta;
1966		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1967	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1968	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1969	}	2985	}
1970	}	2986	}
1971		2987
1972	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1973	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
1974		2990
1975	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1976		2992
1977	if ($exit->slaying eq "/!") {
1978	#TODO: this should de-fi-ni-te-ly not be a sync-job
1979	# the problem is that $exit might not survive long enough
1980	# so it needs to be done right now, right here
1981	cf::sync_job { prepare_random_map $exit };
1982	}
1983
1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985	my $hp = $exit->stats->hp;
1986	my $sp = $exit->stats->sp;
1987
1988	$self->enter_link;	2993	$self->enter_link;
1989		2994
1990	(async {	2995	(async {
1991	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1992	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
		3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
		3015	$map = $exit->slaying;
		3016
		3017	} elsif ($slaying eq '!up') {
		3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
1993	$self->goto ($slaying, $hp, $sp);	3028	$self->goto ($map, $x, $y);
1994		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1995	1;	3034	1
1996	}) {	3035	}) {
1997	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1998	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1999	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
2000	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
2001		3040
2002	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
2003	$self->leave_link;	3042	$self->leave_link;
2004	}	3043	}
2005	})->prio (1);	3044	})->prio (1);
2006	}	3045	}
2007		3046
…		…
2021		3060
2022	utf8::encode $text;	3061	utf8::encode $text;
2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2024	}	3063	}
2025		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
2026	=item $client->ext_event ($type, %msg)	3252	=item $client->ext_msg ($type, @msg)
2027		3253
2028	Sends an exti event to the client.	3254	Sends an ext event to the client.
2029		3255
2030	=cut	3256	=cut
2031		3257
2032	sub cf::client::ext_event($$%) {	3258	sub cf::client::ext_msg($$@) {
2033	my ($self, $type, %msg) = @_;	3259	my ($self, $type, @msg) = @_;
2034		3260
2035	$msg{msgtype} = "event_$type";	3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2036	$self->send_packet ("ext " . cf::to_json \%msg);
2037	}	3262	}
2038		3263
2039	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
2040		3265
2041	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2043	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2044		3269
2045	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
2046	reliable at some point in the future.	3271	become reliable at some point in the future.
2047		3272
2048	=cut	3273	=cut
2049		3274
2050	sub cf::client::query {	3275	sub cf::client::query {
2051	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
2059	utf8::encode $text;	3284	utf8::encode $text;
2060	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2061		3286
2062	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
2063	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
2064	}	3291	}
2065		3292
2066	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
2067	on_reply => sub {	3299	on_reply => sub {
2068	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
2069		3301
2070	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
2071	# get handled first	3303	# get handled first
…		…
2083	} else {	3315	} else {
2084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2085	}	3317	}
2086	}	3318	}
2087	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
2088	);	3353	);
2089		3354
2090	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2091		3356
2092	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2108		3373
2109	$coro	3374	$coro
2110	}	3375	}
2111		3376
2112	cf::client->attach (	3377	cf::client->attach (
2113	on_destroy => sub {	3378	on_client_destroy => sub {
2114	my ($ns) = @_;	3379	my ($ns) = @_;
2115		3380
2116	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2117	},	3382	},
2118	);	3383	);
…		…
2133	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2134	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2135		3400
2136	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2137		3402
2138	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2139		3408
2140	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2141		3410
2142	=pod	3411	=pod
2143		3412
2144	The following functions and methods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2145		3414
2146	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2147	cf::object::player player	3420	cf::object::player
2148	cf::player peaceful	3421	player
2149	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2150		3428
2151	=cut	3429	=cut
2152		3430
2153	for (	3431	for (
2154	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2155	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2156	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2157	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2158	) {	3438	) {
2159	no strict 'refs';
2160	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2161	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2162	for @funs;	3441	for @funs;
2163	}	3442	}
2164		3443
…		…
2179		3458
2180	my $qcode = $code;	3459	my $qcode = $code;
2181	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2182	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2183		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2184	local $_;	3466	local $_;
2185	local @safe::cf::_safe_eval_args = values %vars;
2186		3467
2187	my $eval =	3468	my $eval =
2188	"do {\n"	3469	"do {\n"
2189	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2190	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2191	. $code	3472	. $code
2192	. "\n}"	3473	. "\n}"
2193	;	3474	;
2194		3475
		3476	if ($CFG{safe_eval}) {
2195	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2196	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2197	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2198		3485
2199	if ($@) {	3486	if ($@) {
2200	warn "$@";	3487	warn "$@",
2201	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2202	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2203	}	3490	}
2204		3491
2205	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2206	}	3493	}
2207		3494
…		…
2221	=cut	3508	=cut
2222		3509
2223	sub register_script_function {	3510	sub register_script_function {
2224	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2225		3512
2226	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2227	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2228	}	3515	}
2229		3516
2230	=back	3517	=back
2231		3518
2232	=cut	3519	=cut
2233
2234	#############################################################################
2235
2236	=head2 EXTENSION DATABASE SUPPORT
2237
2238	Crossfire maintains a very simple database for extension use. It can
2239	currently store anything that can be serialised using Storable, which
2240	excludes objects.
2241
2242	The parameter C<$family> should best start with the name of the extension
2243	using it, it should be unique.
2244
2245	=over 4
2246
2247	=item $value = cf::db_get $family => $key
2248
2249	Returns a single value from the database.
2250
2251	=item cf::db_put $family => $key => $value
2252
2253	Stores the given C<$value> in the family.
2254
2255	=cut
2256
2257	our $DB;
2258
2259	sub db_init {
2260	unless ($DB) {
2261	$DB = BDB::db_create $DB_ENV;
2262
2263	cf::sync_job {
2264	eval {
2265	$DB->set_flags (BDB::CHKSUM);
2266
2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269	cf::cleanup "db_open(db): $!" if $!;
2270	};
2271	cf::cleanup "db_open(db): $@" if $@;
2272	};
2273
2274	my $path = cf::localdir . "/database.pst";
2275	if (stat $path) {
2276	cf::sync_job {
2277	my $pst = Storable::retrieve $path;
2278
2279	cf::db_put (board => data => $pst->{board});
2280	cf::db_put (guildrules => data => $pst->{guildrules});
2281	cf::db_put (rent => balance => $pst->{rent}{balance});
2282	BDB::db_env_txn_checkpoint $DB_ENV;
2283
2284	unlink $path;
2285	};
2286	}
2287	}
2288	}
2289
2290	sub db_get($$) {
2291	my $key = "$_[0]/$_[1]";
2292
2293	cf::sync_job {
2294	BDB::db_get $DB, undef, $key, my $data;
2295
2296	$! ? ()
2297	: Compress::LZF::sthaw $data
2298	}
2299	}
2300
2301	sub db_put($$$) {
2302	BDB::dbreq_pri 4;
2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2304	}
2305		3520
2306	#############################################################################	3521	#############################################################################
2307	# the server's init and main functions	3522	# the server's init and main functions
2308		3523
		3524	{
		3525	package cf::face;
		3526
		3527	our %HASH; # hash => idx
		3528	our @DATA; # dynamically-created facedata, only faceste 0 used
		3529	our @FOFS; # file offset, if > 0
		3530	our @SIZE; # size of face, in octets
		3531	our @META; # meta hash of face, if any
		3532	our $DATAFH; # facedata filehandle
		3533
		3534	# internal api, not finalised
		3535	sub set {
		3536	my ($name, $type, $data) = @_;
		3537
		3538	my $idx = cf::face::find $name;
		3539
		3540	if ($idx) {
		3541	delete $HASH{cf::face::get_chksum $idx};
		3542	} else {
		3543	$idx = cf::face::alloc $name;
		3544	}
		3545
		3546	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3547
		3548	cf::face::set_type $idx, $type;
		3549	cf::face::set_csum $idx, 0, $hash;
		3550
		3551	# we need to destroy the SV itself, not just modify it, as a running ix
		3552	# might hold a reference to it: "delete" achieves that.
		3553	delete $FOFS[0][$idx];
		3554	delete $DATA[0][$idx];
		3555	$DATA[0][$idx] = $data;
		3556	$SIZE[0][$idx] = length $data;
		3557	delete $META[$idx];
		3558	$HASH{$hash} = $idx;#d#
		3559
		3560	$idx
		3561	}
		3562
		3563	sub _get_data($$$) {
		3564	my ($idx, $set, $cb) = @_;
		3565
		3566	if (defined $DATA[$set][$idx]) {
		3567	$cb->($DATA[$set][$idx]);
		3568	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3569	my $size = $SIZE[$set][$idx];
		3570	my $buf;
		3571	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3572	if ($_[0] == $size) {
		3573	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3574	$cb->($buf);
		3575	} else {
		3576	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3577	}
		3578	};
		3579	} else {
		3580	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3581	}
		3582	}
		3583
		3584	# rather ineffient
		3585	sub cf::face::get_data($;$) {
		3586	my ($idx, $set) = @_;
		3587
		3588	_get_data $idx, $set, Coro::rouse_cb;
		3589	Coro::rouse_wait
		3590	}
		3591
		3592	sub cf::face::ix {
		3593	my ($ns, $set, $idx, $pri) = @_;
		3594
		3595	_get_data $idx, $set, sub {
		3596	$ns->ix_send ($idx, $pri, $_[0]);
		3597	};
		3598	}
		3599	}
		3600
2309	sub load_facedata {	3601	sub load_facedata($) {
2310	my $path = sprintf "%s/facedata", cf::datadir;	3602	my ($path) = @_;
2311		3603
		3604	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3605
2312	warn "loading facedata from $path\n";	3606	trace "loading facedata from $path\n";
2313		3607
2314	my $facedata;	3608	my $facedata = decode_storable load_file "$path/faceinfo";
2315	0 < aio_load $path, $facedata
2316	or die "$path: $!";
2317
2318	$facedata = Coro::Storable::thaw $facedata;
2319		3609
2320	$facedata->{version} == 2	3610	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	3611	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3612
		3613	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3614	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3615
		3616	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3617
		3618	# BEGIN ATOMIC
		3619	# from here on, everything must be atomic - no thread switch allowed
		3620	my $t1 = EV::time;
2322		3621
2323	{	3622	{
2324	my $faces = $facedata->{faceinfo};	3623	my $faces = $facedata->{faceinfo};
2325		3624
2326	while (my ($face, $info) = each %$faces) {	3625	for my $face (sort keys %$faces) {
		3626	my $info = $faces->{$face};
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3627	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3628
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3629	cf::face::set_visibility $idx, $info->{visibility};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3630	cf::face::set_magicmap $idx, $info->{magicmap};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3631	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
2331	Coro::cede;	3632	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3633	#cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph}; # glyphs no longer downloadable via ix
		3634	$cf::face::HASH{$info->{hash64}} = $idx;
		3635	delete $cf::face::META[$idx];
2332	}	3636	}
2333		3637
2334	while (my ($face, $info) = each %$faces) {	3638	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3639	next unless $info->{smooth};
		3640
2336	my $idx = cf::face::find $face	3641	my $idx = cf::face::find $face
2337	or next;	3642	or next;
		3643
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3644	if (my $smooth = cf::face::find $info->{smooth}) {
		3645	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3646	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3647	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3648	error "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3649	}
2343	Coro::cede;
2344	}	3650	}
2345	}	3651	}
2346		3652
2347	{	3653	{
2348	my $anims = $facedata->{animinfo};	3654	my $anims = $facedata->{animinfo};
2349		3655
2350	while (my ($anim, $info) = each %$anims) {	3656	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3657	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;
2353	}	3658	}
2354		3659
2355	cf::anim::invalidate_all; # d'oh	3660	cf::anim::invalidate_all; # d'oh
2356	}	3661	}
2357		3662
		3663	{
		3664	my $res = $facedata->{resource};
		3665
		3666	while (my ($name, $info) = each %$res) {
		3667	if (defined (my $type = $info->{type})) {
		3668	# TODO: different hash - must free and use new index, or cache ixface data queue
		3669	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3670
		3671	cf::face::set_type $idx, $type;
		3672	cf::face::set_csum $idx, 0, $info->{hash};
		3673	$cf::face::SIZE[0][$idx] = $info->{size};
		3674	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3675	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3676	$cf::face::HASH{$info->{hash}} = $idx;
		3677	} else {
		3678	# $RESOURCE{$name} = $info; # unused
		3679	}
		3680	}
		3681	}
		3682
		3683	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3684
		3685	# HACK to clear player env face cache, we need some signal framework
		3686	# for this (global event?)
		3687	%ext::player_env::MUSIC_FACE_CACHE = ();
		3688
		3689	# END ATOMIC
		3690
		3691	cf::debug "facedata atomic update time ", EV::time - $t1;
		3692
		3693	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3694
		3695	aio_close $fh if $fh; # close old facedata
		3696
2358	1	3697	1
2359	}	3698	}
2360		3699
		3700	register_exticmd fx_want => sub {
		3701	my ($ns, $want) = @_;
		3702
		3703	while (my ($k, $v) = each %$want) {
		3704	$ns->fx_want ($k, $v);
		3705	}
		3706	};
		3707
		3708	sub load_resource_file($) {
		3709	my $guard = lock_acquire "load_resource_file";
		3710
		3711	my $status = load_resource_file_ $_[0];
		3712	get_slot 0.1, 100;
		3713	cf::arch::commit_load;
		3714
		3715	$status
		3716	}
		3717
		3718	sub reload_exp_table {
		3719	_reload_exp_table;
		3720
		3721	cf::face::set
		3722	"res/exp_table" => FT_RSRC,
		3723	JSON::XS->new->utf8->canonical->encode (
		3724	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3725	);
		3726	}
		3727
		3728	sub reload_materials {
		3729	_reload_materials;
		3730	}
		3731
		3732	sub reload_regions {
		3733	# HACK to clear player env face cache, we need some signal framework
		3734	# for this (global event?)
		3735	%ext::player_env::MUSIC_FACE_CACHE = ();
		3736
		3737	load_resource_file "$MAPDIR/regions"
		3738	or die "unable to load regions file\n";
		3739
		3740	for (cf::region::list) {
		3741	$_->{match} = qr/$_->{match}/
		3742	if exists $_->{match};
		3743	}
		3744	}
		3745
		3746	sub reload_facedata {
		3747	load_facedata $DATADIR
		3748	or die "unable to load facedata\n";
		3749	}
		3750
		3751	sub reload_archetypes {
		3752	load_resource_file "$DATADIR/archetypes"
		3753	or die "unable to load archetypes\n";
		3754
		3755	cf::face::set
		3756	"res/skill_info" => FT_RSRC,
		3757	JSON::XS->new->utf8->canonical->encode (
		3758	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3759	);
		3760
		3761	cf::face::set
		3762	"res/spell_paths" => FT_RSRC,
		3763	JSON::XS->new->utf8->canonical->encode (
		3764	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3765	);
		3766	}
		3767
		3768	sub reload_treasures {
		3769	load_resource_file "$DATADIR/treasures"
		3770	or die "unable to load treasurelists\n";
		3771	}
		3772
		3773	sub reload_sound {
		3774	trace "loading sound config from $DATADIR/sound\n";
		3775
		3776	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3777
		3778	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3779	my $sound = $soundconf->{compat}[$_]
		3780	or next;
		3781
		3782	my $face = cf::face::find "sound/$sound->[1]";
		3783	cf::sound::set $sound->[0] => $face;
		3784	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3785	}
		3786
		3787	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3788	my $face = cf::face::find "sound/$v";
		3789	cf::sound::set $k => $face;
		3790	}
		3791	}
		3792
2361	sub reload_resources {	3793	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3794	trace "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3795
		3796	reload_materials;
2364	load_facedata	3797	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3798	reload_exp_table;
2366	}	3799	reload_sound;
2367		3800	reload_archetypes;
2368	sub init {
2369	reload_resources;	3801	reload_regions;
2370	}	3802	reload_treasures;
2371		3803
2372	sub cfg_load {	3804	trace "finished reloading resource files\n";
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3805	}
2374	or return;
2375		3806
2376	local $/;	3807	sub reload_config {
2377	*CFG = YAML::Syck::Load <$fh>;	3808	trace "reloading config file...\n";
2378		3809
		3810	my $config = load_file "$CONFDIR/config";
		3811	utf8::decode $config;
		3812	*CFG = decode_yaml $config;
		3813
2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3814	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2380		3815
2381	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3816	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2382	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3817	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2383		3818
2384	if (exists $CFG{mlockall}) {	3819	if (exists $CFG{mlockall}) {
…		…
2388	};	3823	};
2389	warn $@ if $@;	3824	warn $@ if $@;
2390	}	3825	}
2391	}	3826	}
2392		3827
		3828	sub pidfile() {
		3829	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3830	or die "$PIDFILE: $!";
		3831	flock $fh, &Fcntl::LOCK_EX
		3832	or die "$PIDFILE: flock: $!";
		3833	$fh
		3834	}
		3835
		3836	# make sure only one server instance is running at any one time
		3837	sub atomic {
		3838	my $fh = pidfile;
		3839
		3840	my $pid = <$fh>;
		3841	kill 9, $pid if $pid > 0;
		3842
		3843	seek $fh, 0, 0;
		3844	print $fh $$;
		3845	}
		3846
		3847	sub main_loop {
		3848	trace "EV::loop starting\n";
		3849	if (1) {
		3850	EV::loop;
		3851	}
		3852	trace "EV::loop returned\n";
		3853	goto &main_loop unless $REALLY_UNLOOP;
		3854	}
		3855
2393	sub main {	3856	sub main {
		3857	cf::init_globals; # initialise logging
		3858
		3859	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3860	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3861	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3862	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3863
		3864	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3865
2394	# we must not ever block the main coroutine	3866	# we must not ever block the main coroutine
2395	local $Coro::idle = sub {	3867	$Coro::idle = sub {
2396	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3868	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2397	(async {	3869	(async {
2398	Event::one_event;	3870	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3871	EV::loop EV::LOOP_ONESHOT;
2399	})->prio (Coro::PRIO_MAX);	3872	})->prio (Coro::PRIO_MAX);
2400	};	3873	};
2401		3874
2402	cfg_load;	3875	evthread_start IO::AIO::poll_fileno;
		3876
		3877	cf::sync_job {
		3878	cf::incloader::init ();
		3879
2403	db_init;	3880	db_init;
		3881
		3882	cf::init_anim;
		3883	cf::init_attackmess;
		3884	cf::init_dynamic;
		3885
		3886	cf::load_settings;
		3887
		3888	reload_resources;
		3889	reload_config;
		3890
		3891	cf::init_uuid;
		3892	cf::init_signals;
		3893	cf::init_skills;
		3894
		3895	cf::init_beforeplay;
		3896
		3897	atomic;
		3898
2404	load_extensions;	3899	load_extensions;
2405		3900
2406	$TICK_WATCHER->start;	3901	utime time, time, $RUNTIMEFILE;
2407	Event::loop;	3902
		3903	# no (long-running) fork's whatsoever before this point(!)
		3904	use POSIX ();
		3905	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3906
		3907	cf::_post_init 0;
		3908	};
		3909
		3910	cf::object::thawer::errors_are_fatal 0;
		3911	info "parse errors in files are no longer fatal from this point on.\n";
		3912
		3913	AE::postpone {
		3914	undef &main; # free gobs of memory :)
		3915	};
		3916
		3917	goto &main_loop;
2408	}	3918	}
2409		3919
2410	#############################################################################	3920	#############################################################################
2411	# initialisation and cleanup	3921	# initialisation and cleanup
2412		3922
2413	# install some emergency cleanup handlers	3923	# install some emergency cleanup handlers
2414	BEGIN {	3924	BEGIN {
		3925	our %SIGWATCHER = ();
2415	for my $signal (qw(INT HUP TERM)) {	3926	for my $signal (qw(INT HUP TERM)) {
2416	Event->signal (	3927	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2417	reentrant => 0,
2418	data => WF_AUTOCANCEL,
2419	signal => $signal,
2420	prio => 0,
2421	cb => sub {
2422	cf::cleanup "SIG$signal";	3928	cf::cleanup "SIG$signal";
2423	},
2424	);	3929	};
		3930	}
		3931	}
		3932
		3933	sub write_runtime_sync {
		3934	my $t0 = AE::time;
		3935
		3936	# first touch the runtime file to show we are still running:
		3937	# the fsync below can take a very very long time.
		3938
		3939	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3940
		3941	my $guard = cf::lock_acquire "write_runtime";
		3942
		3943	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3944	or return;
		3945
		3946	my $value = $cf::RUNTIME + 90 + 10;
		3947	# 10 is the runtime save interval, for a monotonic clock
		3948	# 60 allows for the watchdog to kill the server.
		3949
		3950	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3951	and return;
		3952
		3953	# always fsync - this file is important
		3954	aio_fsync $fh
		3955	and return;
		3956
		3957	# touch it again to show we are up-to-date
		3958	aio_utime $fh, undef, undef;
		3959
		3960	close $fh
		3961	or return;
		3962
		3963	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3964	and return;
		3965
		3966	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3967
2425	}	3968	1
		3969	}
		3970
		3971	our $uuid_lock;
		3972	our $uuid_skip;
		3973
		3974	sub write_uuid_sync($) {
		3975	$uuid_skip ||= $_[0];
		3976
		3977	return if $uuid_lock;
		3978	local $uuid_lock = 1;
		3979
		3980	my $uuid = "$LOCALDIR/uuid";
		3981
		3982	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3983	or return;
		3984
		3985	my $value = uuid_seq uuid_cur;
		3986
		3987	unless ($value) {
		3988	info "cowardly refusing to write zero uuid value!\n";
		3989	return;
		3990	}
		3991
		3992	my $value = uuid_str $value + $uuid_skip;
		3993	$uuid_skip = 0;
		3994
		3995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3996	and return;
		3997
		3998	# always fsync - this file is important
		3999	aio_fsync $fh
		4000	and return;
		4001
		4002	close $fh
		4003	or return;
		4004
		4005	aio_rename "$uuid~", $uuid
		4006	and return;
		4007
		4008	trace "uuid file written ($value).\n";
		4009
		4010	1
		4011
		4012	}
		4013
		4014	sub write_uuid($$) {
		4015	my ($skip, $sync) = @_;
		4016
		4017	$sync ? write_uuid_sync $skip
		4018	: async { write_uuid_sync $skip };
2426	}	4019	}
2427		4020
2428	sub emergency_save() {	4021	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	4022	my $freeze_guard = cf::freeze_mainloop;
2430		4023
2431	warn "enter emergency perl save\n";	4024	info "emergency_perl_save: enter\n";
		4025
		4026	# this is a trade-off: we want to be very quick here, so
		4027	# save all maps without fsync, and later call a global sync
		4028	# (which in turn might be very very slow)
		4029	local $USE_FSYNC = 0;
2432		4030
2433	cf::sync_job {	4031	cf::sync_job {
		4032	cf::write_runtime_sync; # external watchdog should not bark
		4033
2434	# use a peculiar iteration method to avoid tripping on perl	4034	# use a peculiar iteration method to avoid tripping on perl
2435	# refcount bugs in for. also avoids problems with players	4035	# refcount bugs in for. also avoids problems with players
2436	# and maps saved/destroyed asynchronously.	4036	# and maps saved/destroyed asynchronously.
2437	warn "begin emergency player save\n";	4037	info "emergency_perl_save: begin player save\n";
2438	for my $login (keys %cf::PLAYER) {	4038	for my $login (keys %cf::PLAYER) {
2439	my $pl = $cf::PLAYER{$login} or next;	4039	my $pl = $cf::PLAYER{$login} or next;
2440	$pl->valid or next;	4040	$pl->valid or next;
		4041	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2441	$pl->save;	4042	$pl->save;
2442	}	4043	}
2443	warn "end emergency player save\n";	4044	info "emergency_perl_save: end player save\n";
2444		4045
2445	warn "begin emergency map save\n";	4046	cf::write_runtime_sync; # external watchdog should not bark
		4047
		4048	info "emergency_perl_save: begin map save\n";
2446	for my $path (keys %cf::MAP) {	4049	for my $path (keys %cf::MAP) {
2447	my $map = $cf::MAP{$path} or next;	4050	my $map = $cf::MAP{$path} or next;
2448	$map->valid or next;	4051	$map->valid or next;
2449	$map->save;	4052	$map->save;
2450	}	4053	}
2451	warn "end emergency map save\n";	4054	info "emergency_perl_save: end map save\n";
2452		4055
2453	warn "begin emergency database checkpoint\n";	4056	cf::write_runtime_sync; # external watchdog should not bark
		4057
		4058	info "emergency_perl_save: begin database checkpoint\n";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	4059	BDB::db_env_txn_checkpoint $DB_ENV;
2455	warn "end emergency database checkpoint\n";	4060	info "emergency_perl_save: end database checkpoint\n";
		4061
		4062	info "emergency_perl_save: begin write uuid\n";
		4063	write_uuid_sync 1;
		4064	info "emergency_perl_save: end write uuid\n";
		4065
		4066	cf::write_runtime_sync; # external watchdog should not bark
		4067
		4068	trace "emergency_perl_save: syncing database to disk";
		4069	BDB::db_env_txn_checkpoint $DB_ENV;
		4070
		4071	info "emergency_perl_save: starting sync\n";
		4072	IO::AIO::aio_sync sub {
		4073	info "emergency_perl_save: finished sync\n";
		4074	};
		4075
		4076	cf::write_runtime_sync; # external watchdog should not bark
		4077
		4078	trace "emergency_perl_save: flushing outstanding aio requests";
		4079	while (IO::AIO::nreqs || BDB::nreqs) {
		4080	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4081	}
		4082
		4083	cf::write_runtime_sync; # external watchdog should not bark
2456	};	4084	};
2457		4085
2458	warn "leave emergency perl save\n";	4086	info "emergency_perl_save: leave\n";
2459	}	4087	}
2460		4088
2461	sub post_cleanup {	4089	sub post_cleanup {
2462	my ($make_core) = @_;	4090	my ($make_core) = @_;
2463		4091
		4092	IO::AIO::flush;
		4093
2464	warn Carp::longmess "post_cleanup backtrace"	4094	error Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	4095	if $make_core;
2466	}
2467		4096
		4097	my $fh = pidfile;
		4098	unlink $PIDFILE if <$fh> == $$;
		4099	}
		4100
		4101	# a safer delete_package, copied from Symbol
		4102	sub clear_package($) {
		4103	my $pkg = shift;
		4104
		4105	# expand to full symbol table name if needed
		4106	unless ($pkg =~ /^main::.*::$/) {
		4107	$pkg = "main$pkg" if $pkg =~ /^::/;
		4108	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4109	$pkg .= '::' unless $pkg =~ /::$/;
		4110	}
		4111
		4112	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4113	my $stem_symtab = *{$stem}{HASH};
		4114
		4115	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4116	or return;
		4117
		4118	# clear all symbols
		4119	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4120	for my $name (keys %$leaf_symtab) {
		4121	_gv_clear *{"$pkg$name"};
		4122	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4123	}
		4124	}
		4125
2468	sub reload() {	4126	sub do_reload_perl() {
2469	# can/must only be called in main	4127	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	4128	unless (in_main) {
2471	warn "can only reload from main coroutine";	4129	error "can only reload from main coroutine";
2472	return;	4130	return;
2473	}	4131	}
2474		4132
2475	warn "reloading...";	4133	return if $RELOAD++;
2476		4134
2477	warn "entering sync_job";	4135	my $t1 = AE::time;
2478		4136
		4137	while ($RELOAD) {
		4138	cf::get_slot 0.1, -1, "reload_perl";
		4139	info "perl_reload: reloading...";
		4140
		4141	trace "perl_reload: entering sync_job";
		4142
2479	cf::sync_job {	4143	cf::sync_job {
2480	cf::write_runtime; # external watchdog should not bark
2481	cf::emergency_save;	4144	#cf::emergency_save;
2482	cf::write_runtime; # external watchdog should not bark
2483		4145
2484	warn "syncing database to disk";
2485	BDB::db_env_txn_checkpoint $DB_ENV;
2486
2487	# if anything goes wrong in here, we should simply crash as we already saved
2488
2489	warn "cancelling all WF_AUTOCANCEL watchers";
2490	for (Event::all_watchers) {
2491	$_->cancel if $_->data & WF_AUTOCANCEL;
2492	}
2493
2494	warn "flushing outstanding aio requests";
2495	for (;;) {
2496	BDB::flush;
2497	IO::AIO::flush;
2498	Coro::cede;
2499	last unless IO::AIO::nreqs || BDB::nreqs;
2500	warn "iterate...";
2501	}
2502
2503	++$RELOAD;
2504
2505	warn "cancelling all extension coros";	4146	trace "perl_reload: cancelling all extension coros";
2506	$_->cancel for values %EXT_CORO;	4147	$_->cancel for values %EXT_CORO;
2507	%EXT_CORO = ();	4148	%EXT_CORO = ();
2508		4149
2509	warn "removing commands";	4150	trace "perl_reload: removing commands";
2510	%COMMAND = ();	4151	%COMMAND = ();
2511		4152
2512	warn "removing ext commands";	4153	trace "perl_reload: removing ext/exti commands";
2513	%EXTCMD = ();	4154	%EXTCMD = ();
		4155	%EXTICMD = ();
2514		4156
2515	warn "unloading/nuking all extensions";	4157	trace "perl_reload: unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	4158	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	4159	trace "... unloading $pkg";
2518		4160
2519	if (my $cb = $pkg->can ("unload")) {	4161	if (my $cb = $pkg->can ("unload")) {
2520	eval {	4162	eval {
2521	$cb->($pkg);	4163	$cb->($pkg);
2522	1	4164	1
2523	} or warn "$pkg unloaded, but with errors: $@";	4165	} or error "$pkg unloaded, but with errors: $@";
		4166	}
		4167
		4168	trace "... clearing $pkg";
		4169	clear_package $pkg;
2524	}	4170	}
2525		4171
2526	warn "... nuking $pkg";
2527	Symbol::delete_package $pkg;
2528	}
2529
2530	warn "unloading all perl modules loaded from $LIBDIR";	4172	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2531	while (my ($k, $v) = each %INC) {	4173	while (my ($k, $v) = each %INC) {
2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4174	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2533		4175
2534	warn "... unloading $k";	4176	trace "... unloading $k";
2535	delete $INC{$k};	4177	delete $INC{$k};
2536		4178
2537	$k =~ s/\.pm$//;	4179	$k =~ s/\.pm$//;
2538	$k =~ s/\//::/g;	4180	$k =~ s/\//::/g;
2539		4181
2540	if (my $cb = $k->can ("unload_module")) {	4182	if (my $cb = $k->can ("unload_module")) {
2541	$cb->();	4183	$cb->();
		4184	}
		4185
		4186	clear_package $k;
2542	}	4187	}
2543		4188
2544	Symbol::delete_package $k;
2545	}
2546
2547	warn "getting rid of safe::, as good as possible";	4189	trace "perl_reload: getting rid of safe::, as good as possible";
2548	Symbol::delete_package "safe::$_"	4190	clear_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4191	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		4192
2551	warn "unloading cf.pm \"a bit\"";	4193	trace "perl_reload: unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	4194	delete $INC{"cf.pm"};
		4195	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2553		4196
2554	# don't, removes xs symbols, too,	4197	# don't, removes xs symbols, too,
2555	# and global variables created in xs	4198	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	4199	#clear_package __PACKAGE__;
2557		4200
2558	warn "unload completed, starting to reload now";	4201	info "perl_reload: unload completed, starting to reload now";
2559		4202
2560	warn "reloading cf.pm";	4203	trace "perl_reload: reloading cf.pm";
2561	require cf;	4204	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4205	cf::_connect_to_perl_1;
2563		4206
2564	warn "loading config and database again";	4207	trace "perl_reload: loading config and database again";
2565	cf::cfg_load;	4208	cf::reload_config;
2566		4209
2567	warn "loading extensions";	4210	trace "perl_reload: loading extensions";
2568	cf::load_extensions;	4211	cf::load_extensions;
2569		4212
		4213	if ($REATTACH_ON_RELOAD) {
2570	warn "reattaching attachments to objects/players";	4214	trace "perl_reload: reattaching attachments to objects/players";
2571	_global_reattach; # objects, sockets	4215	_global_reattach; # objects, sockets
2572	warn "reattaching attachments to maps";	4216	trace "perl_reload: reattaching attachments to maps";
2573	reattach $_ for values %MAP;	4217	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	4218	trace "perl_reload: reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	4219	reattach $_ for values %PLAYER;
		4220	}
2576		4221
2577	warn "loading reloadable resources";	4222	cf::_post_init 1;
2578	reload_resources;
2579		4223
2580	warn "leaving sync_job";	4224	trace "perl_reload: leaving sync_job";
2581		4225
2582	1	4226	1
2583	} or do {	4227	} or do {
2584	warn $@;	4228	error $@;
2585	warn "error while reloading, exiting.";	4229	cf::cleanup "perl_reload: error, exiting.";
2586	exit 1;	4230	};
		4231
		4232	--$RELOAD;
		4233	}
		4234
		4235	$t1 = AE::time - $t1;
		4236	info "perl_reload: completed in ${t1}s\n";
		4237	};
		4238
		4239	our $RELOAD_WATCHER; # used only during reload
		4240
		4241	sub reload_perl() {
		4242	# doing reload synchronously and two reloads happen back-to-back,
		4243	# coro crashes during coro_state_free->destroy here.
		4244
		4245	$RELOAD_WATCHER ||= cf::async {
		4246	Coro::AIO::aio_wait cache_extensions;
		4247
		4248	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4249	do_reload_perl;
		4250	undef $RELOAD_WATCHER;
		4251	};
2587	};	4252	};
2588		4253	}
2589	warn "reloaded";
2590	};
2591
2592	our $RELOAD_WATCHER; # used only during reload
2593		4254
2594	register_command "reload" => sub {	4255	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	4256	my ($who, $arg) = @_;
2596		4257
2597	if ($who->flag (FLAG_WIZ)) {	4258	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	4259	$who->message ("reloading server.");
2599		4260	async {
2600	# doing reload synchronously and two reloads happen back-to-back,	4261	$Coro::current->{desc} = "perl_reload";
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;	4262	reload_perl;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);	4263	};
2612	}	4264	}
2613	};	4265	};
2614		4266
2615	unshift @INC, $LIBDIR;	4267	#############################################################################
2616		4268
2617	my $bug_warning = 0;	4269	my $bug_warning = 0;
2618		4270
2619	$TICK_WATCHER = Event->timer (	4271	sub wait_for_tick() {
2620	reentrant => 0,	4272	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2621	parked => 1,	4273
2622	prio => 0,	4274	$WAIT_FOR_TICK->wait;
2623	at => $NEXT_TICK || $TICK,	4275	}
2624	data => WF_AUTOCANCEL,	4276
2625	cb => sub {	4277	sub wait_for_tick_begin() {
		4278	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4279
		4280	my $signal = new Coro::Signal;
		4281	push @WAIT_FOR_TICK_BEGIN, $signal;
		4282	$signal->wait;
		4283	}
		4284
		4285	sub tick {
2626	if ($Coro::current != $Coro::main) {	4286	if ($Coro::current != $Coro::main) {
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4287	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	4288	unless ++$bug_warning > 10;
2629	return;	4289	return;
2630	}	4290	}
2631		4291
2632	$NOW = Event::time;	4292	cf::one_tick; # one server iteration
2633		4293
2634	cf::server_tick; # one server iteration	4294	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2635	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;
2637		4295
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4296	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	4297	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2640	Coro::async_pool {	4298	Coro::async_pool {
		4299	$Coro::current->{desc} = "runtime saver";
2641	write_runtime	4300	write_runtime_sync
2642	or warn "ERROR: unable to write runtime file: $!";	4301	or error "ERROR: unable to write runtime file: $!";
2643	};
2644	}	4302	};
		4303	}
2645		4304
		4305	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4306	$sig->send;
		4307	}
2646	$WAIT_FOR_TICK->broadcast;	4308	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648		4309
2649	# my $AFTER = Event::time;	4310	$LOAD = ($NOW - $TICK_START) / $TICK;
2650	# warn $AFTER - $NOW;#d#	4311	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2651		4312
2652	# if we are delayed by four ticks or more, skip them all	4313	if (0) {
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4314	if ($NEXT_TICK) {
2654		4315	my $jitter = $TICK_START - $NEXT_TICK;
2655	$TICK_WATCHER->at ($NEXT_TICK);	4316	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2656	$TICK_WATCHER->start;	4317	debug "jitter $JITTER\n";#d#
		4318	}
2657	},	4319	}
2658	);	4320	}
2659		4321
2660	{	4322	{
2661	BDB::max_poll_time $TICK * 0.1;	4323	# configure BDB
2662	$BDB_POLL_WATCHER = Event->io (	4324	info "initialising database";
2663	reentrant => 0,	4325
2664	fd => BDB::poll_fileno,
2665	poll => 'r',
2666	prio => 0,
2667	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,
2669	);
2670	BDB::min_parallel 8;	4326	BDB::min_parallel 16;
2671		4327	BDB::max_poll_reqs $TICK * 0.1;
2672	BDB::set_sync_prepare {	4328	#$AnyEvent::BDB::WATCHER->priority (1);
2673	my $status;
2674	my $current = $Coro::current;
2675	(
2676	sub {
2677	$status = $!;
2678	$current->ready; undef $current;
2679	},
2680	sub {
2681	Coro::schedule while defined $current;
2682	$! = $status;
2683	},
2684	)
2685	};
2686		4329
2687	unless ($DB_ENV) {	4330	unless ($DB_ENV) {
2688	$DB_ENV = BDB::db_env_create;	4331	$DB_ENV = BDB::db_env_create;
		4332	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4333	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4334	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4335	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4336	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2689		4337
2690	cf::sync_job {	4338	cf::sync_job {
2691	eval {	4339	eval {
2692	BDB::db_env_open	4340	BDB::db_env_open
2693	$DB_ENV,	4341	$DB_ENV,
2694	$BDB_ENV_DIR,	4342	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4343	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4344	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	4345	0666;
2698		4346
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4347	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;
2703	};	4348	};
2704		4349
2705	cf::cleanup "db_env_open(db): $@" if $@;	4350	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	4351	};
2707	}	4352	}
		4353
		4354	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4355	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4356	};
		4357	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4358	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4359	};
		4360	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4361	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4362	};
		4363
		4364	info "database initialised";
2708	}	4365	}
2709		4366
2710	{	4367	{
		4368	# configure IO::AIO
		4369
		4370	info "initialising aio";
2711	IO::AIO::min_parallel 8;	4371	IO::AIO::min_parallel 8;
2712
2713	undef $Coro::AIO::WATCHER;
2714	IO::AIO::max_poll_time $TICK * 0.1;	4372	IO::AIO::max_poll_time $TICK * 0.1;
2715	$AIO_POLL_WATCHER = Event->io (	4373	undef $AnyEvent::AIO::WATCHER;
2716	reentrant => 0,	4374	info "aio initialised";
2717	data => WF_AUTOCANCEL,
2718	fd => IO::AIO::poll_fileno,
2719	poll => 'r',
2720	prio => 6,
2721	cb => \&IO::AIO::poll_cb,
2722	);
2723	}	4375	}
		4376
		4377	our $_log_backtrace;
		4378	our $_log_backtrace_last;
		4379
		4380	sub _log_backtrace {
		4381	my ($msg, @addr) = @_;
		4382
		4383	$msg =~ s/\n$//;
		4384
		4385	if ($_log_backtrace_last eq $msg) {
		4386	LOG llevInfo, "[ABT] $msg\n";
		4387	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4388	# limit the # of concurrent backtraces
		4389	} elsif ($_log_backtrace < 2) {
		4390	$_log_backtrace_last = $msg;
		4391	++$_log_backtrace;
		4392	my $perl_bt = Carp::longmess $msg;
		4393	async {
		4394	$Coro::current->{desc} = "abt $msg";
		4395
		4396	my @bt = fork_call {
		4397	@addr = map { sprintf "%x", $_ } @addr;
		4398	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4399	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4400	or die "addr2line: $!";
		4401
		4402	my @funcs;
		4403	my @res = <$fh>;
		4404	chomp for @res;
		4405	while (@res) {
		4406	my ($func, $line) = splice @res, 0, 2, ();
		4407	push @funcs, "[$func] $line";
		4408	}
		4409
		4410	@funcs
		4411	};
		4412
		4413	LOG llevInfo, "[ABT] $perl_bt\n";
		4414	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4415	LOG llevInfo, "[ABT] $_\n" for @bt;
		4416	--$_log_backtrace;
		4417	};
		4418	} else {
		4419	LOG llevInfo, "[ABT] $msg\n";
		4420	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4421	}
		4422	}
		4423
		4424	# load additional modules
		4425	require "cf/$_.pm" for @EXTRA_MODULES;
		4426	cf::_connect_to_perl_2;
2724		4427
2725	END { cf::emergency_save }	4428	END { cf::emergency_save }
2726		4429
2727	1	4430	1
2728		4431

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