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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.608 by root, Sun Nov 18 09:53:57 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 Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	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";
38	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
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		81
47	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;
48		85
49	our %COMMAND = ();	86	our %COMMAND = ();
50	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
51		88
52	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
56		96
57	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	98	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
		101
		102	our $CONFDIR = confdir;
		103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
60		125
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	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;
66	our $NOW;	144	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		145
69	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
70	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
71
72	our %CFG;
73
74	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;
76
77	our %PLAYER; # all users
78	our %MAP; # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		149
83	# 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 ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
86	binmode STDOUT;	166	binmode STDOUT;
87	binmode STDERR;	167	binmode STDERR;
88		168
89	# read virtual server time, if available	169	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
94	}	174	}
95		175
96	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	177
98	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		180
103	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
104		182
105	sub cf::map::normalise;	183	sub cf::map::normalise;
106		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
107	#############################################################################	189	#############################################################################
108		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
109	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
110		203
111	=over 4	204	=over 4
112		205
113	=item $cf::UPTIME	206	=item $cf::UPTIME
114		207
115	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.
116		224
117	=item $cf::RUNTIME	225	=item $cf::RUNTIME
118		226
119	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
120	every server tick.	228	every server tick.
121		229
122	=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
123		233
124	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
125	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.
126		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
127	=item $cf::NOW	245	=item $cf::LOAD
128		246
129	The time of the last (current) server tick.	247	The raw value load value from the last tick.
130
131	=item $cf::TICK
132
133	The interval between server ticks, in seconds.
134		248
135	=item %cf::CFG	249	=item %cf::CFG
136		250
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	252	from wherever your confdir points to.
139		253
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		255
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	256	These are functions that inhibit the current coroutine one tick.
143	returns directly I<after> the tick processing (and consequently, can only wake one process	257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
145		289
146	=back	290	=back
147		291
148	=cut	292	=cut
149		293
150	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
151	*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 {
152	my $msg = join "", @_;	301	my $msg = join "", @_;
153		302
154	$msg .= "\n"	303	$msg .= "\n"
155	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
156		305
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		307
159	utf8::encode $msg;
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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
272	};	623	}
273	$TICK_WATCHER->stop;	624	};
274	$guard	625
		626	sub get_slot($;$$) {
		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	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	745	cf::post_fork;
369	and return;	746	&$cb
		747	} @args;
370		748
371	close $fh	749	wantarray ? @res : $res[-1]
372	or return;	750	}
373		751
374	aio_rename "$runtime~", $runtime	752	sub objinfo {
375	and return;
376
377	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
378	}	916	}
379		917
380	=item cf::datalog type => key => value, ...	918	=item cf::datalog type => key => value, ...
381		919
382	Log a datalog packet of the given type with the given key-value pairs.	920	Log a datalog packet of the given type with the given key-value pairs.
383		921
384	=cut	922	=cut
385		923
386	sub datalog($@) {	924	sub datalog($@) {
387	my ($type, %kv) = @_;	925	my ($type, %kv) = @_;
388	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
389	}	927	}
390		928
391	=back	929	=back
392		930
393	=cut	931	=cut
394		932
395	#############################################################################	933	#############################################################################
396		934
397	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
398		936
399	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
402		940
403	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	943	Deliantra).
406		944
407	=over 4	945	=over 4
408		946
409	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
410		948
…		…
454	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
455		993
456	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
458		996
459	Some classes such as crossfire maps and objects can specify attachments	997	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.	998	that are attached at load/instantiate time, thus the need for a name.
461		999
462	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
463		1001
464	=over 4	1002	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
574		1112
575	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		1117
580	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
582		1120
583	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
588		1126
589	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
590	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
591		1129
592	} elsif (ref $type) {	1130	} elsif (ref $type) {
593	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
594		1132
595	} else {	1133	} else {
596	shift @arg;	1134	shift @arg;
597	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
598	}	1136	}
599	}	1137	}
600	}	1138	}
601		1139
602	sub _object_attach {	1140	sub _object_attach {
…		…
612	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
613	}	1151	}
614		1152
615	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
616	} else {	1154	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
618	}	1156	}
619		1157
620	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
621	}	1159	}
622		1160
…		…
624	if (ref $_[0]) {	1162	if (ref $_[0]) {
625	_object_attach @_;	1163	_object_attach @_;
626	} else {	1164	} else {
627	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
628	}	1166	}
		1167	_recalc_want;
629	};	1168	};
630		1169
631	# all those should be optimised	1170	# all those should be optimised
632	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1176	reattach ($obj);
638	} else {	1177	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
640	}	1179	}
		1180	_recalc_want;
641	};	1181	};
642		1182
643	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
645		1185
…		…
660	";	1200	";
661	die if $@;	1201	die if $@;
662	}	1202	}
663		1203
664	our $override;	1204	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1206
667	sub override {	1207	sub override {
668	$override = 1;	1208	$override = 1;
669	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
670	}	1210	}
671		1211
672	sub do_invoke {	1212	sub do_invoke {
673	my $event = shift;	1213	my $event = shift;
674	my $callbacks = shift;	1214	my $callbacks = shift;
675		1215
676	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
677		1217
678	local $override;	1218	local $override;
679		1219
680	for (@$callbacks) {	1220	for (@$callbacks) {
681	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
682		1222
683	if ($@) {	1223	if ($@) {
684	warn "$@";
685	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
686	override;	1225	override;
687	}	1226	}
688		1227
689	return 1 if $override;	1228	return 1 if $override;
690	}	1229	}
691		1230
692	0	1231	0
693	}	1232	}
694		1233
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1235
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1237
699	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
700		1239
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1243
705	=back	1244	=back
706		1245
707	=cut	1246	=cut
708		1247
709	#############################################################################	1248	#############################################################################
710	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
711		1292
712	sub reattach {	1293	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1295	my ($obj) = @_;
715		1296
		1297	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1299
718	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
719		1301
720	@$registry = ();	1302	@$registry = ();
721		1303
…		…
726	for (@$attach) {	1308	for (@$attach) {
727	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
728	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
729	}	1311	}
730	} else {	1312	} else {
731	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
732	}	1314	}
733	}	1315	}
734	}	1316	}
735		1317
736	cf::attachable->attach (	1318	cf::attachable->attach (
737	prio => -1000000,	1319	prio => -1000000,
738	on_instantiate => sub {	1320	on_instantiate => sub {
739	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
740		1322
741	$data = from_json $data;	1323	$data = decode_json $data;
742		1324
743	for (@$data) {	1325	for (@$data) {
744	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
745		1327
746	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1344	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
764		1346
765	sync_job {	1347	sync_job {
766	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
769		1353
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1359	aio_fsync $fh;
		1360	}
774	close $fh;	1361	aio_close $fh;
775		1362
776	if (@$objs) {	1363	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1370	aio_fsync $fh;
		1371	}
782	close $fh;	1372	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
784	}	1374	}
785	} else {	1375	} else {
786	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
787	}	1377	}
788		1378
789	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1383	} else {
791	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
792	}	1385	}
793	} else {	1386	} else {
794	aio_unlink $filename;	1387	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
796	}	1389	}
797	}	1390	};
798	}	1391	}
799		1392
800	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
802		1395
…		…
814	or return;	1407	or return;
815		1408
816	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
818	or return;	1411	or return;
		1412
819	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
820	}	1415	}
821		1416
		1417	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
824	return ($data, $av);	1422	($data, $av)
825	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
826		1430
827	#############################################################################	1431	#############################################################################
828	# command handling &c	1432	# command handling &c
829		1433
830	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
831		1435
832	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
833	$name.	1437	$name.
834		1438
835	=cut	1439	=cut
…		…
841	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
842		1446
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1448	}
845		1449
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
847		1451
848	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
849		1457
850	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
851	called.
852		1459
853	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
854		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
855	sub register_extcmd {	1482	sub register_extcmd($$) {
856	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
857		1484
858	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
859	}	1486	}
860		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
861	cf::player->attach (	1508	cf::player->attach (
862	on_command => sub {	1509	on_unknown_command => sub {
863	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
864		1511
865	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
866	or return;	1513	or return;
867		1514
…		…
872	cf::override;	1519	cf::override;
873	},	1520	},
874	on_extcmd => sub {	1521	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
876		1523
877	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1525
879	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
882	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
883	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
884	}	1547	}
		1548
885	} else {	1549	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1551	}
888		1552
889	cf::override;	1553	cf::override;
890	},	1554	},
891	);	1555	);
892		1556
		1557	# "readahead" all extensions
893	sub load_extension {	1558	sub cache_extensions {
894	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
895		1560
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1563	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	}	1564	}
921	die $@;
922	}	1565	};
923		1566
924	push @EXTS, $pkg;	1567	$grp
		1568	}
		1569
		1570	sub _ext_cfg_reg($$$$) {
		1571	my ($rvar, $varname, $cfgname, $default) = @_;
		1572
		1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
925	}	1579	}
926		1580
927	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
928	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1590	next unless -r $path;
930	eval {	1591
931	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
932	1	1664	}
933	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
934	}	1677	};
935	}	1678	}
936		1679
937	#############################################################################	1680	#############################################################################
938		1681
		1682	=back
		1683
939	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
940		1685
941	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
942		1687
943	=cut	1688	=cut
944		1689
945	package cf::player;	1690	package cf::player;
946		1691
…		…
948		1693
949	=head3 cf::player	1694	=head3 cf::player
950		1695
951	=over 4	1696	=over 4
952		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
953	=item cf::player::find $login	1712	=item cf::player::find $login
954		1713
955	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
956		1715
957	=cut	1716	=cut
958		1717
959	sub playerdir($) {	1718	sub playerdir($) {
960	cf::localdir	1719	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1721	}
966		1722
967	sub path($) {	1723	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1734
979	sub exists($) {	1735	sub exists($) {
980	my ($login) = @_;	1736	my ($login) = @_;
981		1737
982	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1739	or !aio_stat path $login
984	}	1740	}
985		1741
986	sub find($) {	1742	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1744	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1754	aio_unlink +(playerdir $login) . "/$login.pl";
999		1755
1000	my $pl = load_pl path $login	1756	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
1003	}	1765	}
1004	}	1766	}
1005	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($pl, $path) = @_;
		1772
		1773	# restore slots saved in save, below
		1774	my $slots = delete $pl->{_slots};
		1775
		1776	$pl->ob->current_weapon ($slots->[0]);
		1777	$pl->combat_ob ($slots->[1]);
		1778	$pl->ranged_ob ($slots->[2]);
		1779	},
		1780	);
1006		1781
1007	sub save($) {	1782	sub save($) {
1008	my ($pl) = @_;	1783	my ($pl) = @_;
1009		1784
1010	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1015	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1016		1791
1017	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1019		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
1020	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1021	Coro::cede;	1801	cf::cede_to_tick;
1022	}	1802	}
1023		1803
1024	sub new($) {	1804	sub new($) {
1025	my ($login) = @_;	1805	my ($login) = @_;
1026		1806
…		…
1032	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1033		1813
1034	$self	1814	$self
1035	}	1815	}
1036		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
1037	=item $pl->quit_character	1827	=item $pl->quit_character
1038		1828
1039	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1041		1831
…		…
1045	my ($pl) = @_;	1835	my ($pl) = @_;
1046		1836
1047	my $name = $pl->ob->name;	1837	my $name = $pl->ob->name;
1048		1838
1049	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1841
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1053	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1055	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1056		1850
1057	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1059	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
…		…
1088	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1089		1883
1090	=cut	1884	=cut
1091		1885
1092	sub list_logins {	1886	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1888	or return [];
1095		1889
1096	my @logins;	1890	my @logins;
1097		1891
1098	for my $login (@$dirs) {	1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1102		1902
1103	utf8::decode $login;	1903	utf8::decode $login;
1104	push @logins, $login;	1904	push @logins, $login;
1105	}	1905	}
1106		1906
1107	\@logins	1907	\@logins
1108	}	1908	}
1109		1909
1110	=item $player->maps	1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
1111		1913
1112	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1113	player. May block.	1915	player. May block.
1114		1916
1115	=cut	1917	=cut
…		…
1133	}	1935	}
1134		1936
1135	\@paths	1937	\@paths
1136	}	1938	}
1137		1939
1138	=item $player->ext_reply ($msgid, %msg)	1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1139		1941
1140	Sends an ext reply to the player.	1942	Expand deliantra pod fragments into protocol xml.
1141		1943
1142	=cut
1143
1144	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;
1146
1147	$msg{msgid} = $id;
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}
1151
1152	=item $player->ext_event ($type, %msg)	1944	=item $player->ext_msg ($type, @msg)
1153		1945
1154	Sends an ext event to the client.	1946	Sends an ext event to the client.
1155		1947
1156	=cut	1948	=cut
1157		1949
1158	sub ext_event($$%) {	1950	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1160		1952
1161	$self->ns->ext_event ($type, %msg);	1953	$self->ns->ext_msg ($type, @msg);
1162	}	1954	}
1163		1955
1164	=head3 cf::region	1956	=head3 cf::region
1165		1957
1166	=over 4	1958	=over 4
…		…
1169		1961
1170	package cf::region;	1962	package cf::region;
1171		1963
1172	=item cf::region::find_by_path $path	1964	=item cf::region::find_by_path $path
1173		1965
1174	Tries to decuce the probable region for a map knowing only its path.	1966	Tries to decuce the likely region for a map knowing only its path.
1175		1967
1176	=cut	1968	=cut
1177		1969
1178	sub find_by_path($) {	1970	sub find_by_path($) {
1179	my ($path) = @_;	1971	my ($path) = @_;
1180		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
1181	my ($match, $specificity);	1975	my ($match, $specificity);
1182		1976
1183	for my $region (list) {	1977	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1978	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1979	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1980	if $region->specificity > $specificity;
1187	}	1981	}
1188	}	1982	}
1189		1983
…		…
1210	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1212		2006
1213	sub generate_random_map {	2007	sub generate_random_map {
1214	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1215	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1216	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region}), $rmp->{custom}
1228	)
1229	}	2013	}
1230		2014
1231	=item cf::map->register ($regex, $prio)	2015	=item cf::map->register ($regex, $prio)
1232		2016
1233	Register a handler for the map path matching the given regex at the	2017	Register a handler for the map path matching the given regex at the
…		…
1238		2022
1239	sub register {	2023	sub register {
1240	my (undef, $regex, $prio) = @_;	2024	my (undef, $regex, $prio) = @_;
1241	my $pkg = caller;	2025	my $pkg = caller;
1242		2026
1243	no strict;
1244	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1245		2028
1246	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1247	}	2030	}
1248		2031
1249	# also paths starting with '/'	2032	# also paths starting with '/'
1250	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1251		2034
1252	sub thawer_merge {	2035	sub thawer_merge {
1253	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1254		2037
1255	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1256	local $self->{path};	2039	local $self->{path};
1257	local $self->{load_path};	2040	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		2041
1261	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1262	}	2043	}
1263		2044
1264	sub normalise {	2045	sub normalise {
1265	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
1266		2047
1267	$path = "$path"; # make sure its a string	2048	$path = "$path"; # make sure it's a string
1268		2049
1269	$path =~ s/\.map$//;	2050	$path =~ s/\.map$//;
1270		2051
1271	# map plan:	2052	# map plan:
1272	#	2053	#
…		…
1287	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1288	$path = "$base/$path";	2069	$path = "$base/$path";
1289	}	2070	}
1290		2071
1291	for ($path) {	2072	for ($path) {
1292	redo if s{//}{/};
1293	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1294	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1295	}	2075	}
1296		2076
1297	$path	2077	$path
…		…
1311	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1312	return $self;	2092	return $self;
1313	}	2093	}
1314	}	2094	}
1315		2095
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1317	()	2097	()
1318	}	2098	}
1319		2099
		2100	# may re-bless or do other evil things
1320	sub init {	2101	sub init {
1321	my ($self) = @_;	2102	my ($self) = @_;
1322		2103
1323	$self	2104	$self
1324	}	2105	}
…		…
1336		2117
1337	# the original (read-only) location	2118	# the original (read-only) location
1338	sub load_path {	2119	sub load_path {
1339	my ($self) = @_;	2120	my ($self) = @_;
1340		2121
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1342	}	2123	}
1343		2124
1344	# the temporary/swap location	2125	# the temporary/swap location
1345	sub save_path {	2126	sub save_path {
1346	my ($self) = @_;	2127	my ($self) = @_;
1347		2128
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1350	}	2131	}
1351		2132
1352	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1353	sub uniq_path {	2134	sub uniq_path {
1354	my ($self) = @_;	2135	my ($self) = @_;
1355		2136
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1358	}	2139	}
1359		2140
1360	# and all this just because we cannot iterate over	2141	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	2142	my ($self) = @_;
1364		2143
1365	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1367	}	2147	}
1368		2148
1369	sub unlink_save {	2149	sub unlink_save {
1370	my ($self) = @_;	2150	my ($self) = @_;
1371		2151
…		…
1376		2156
1377	sub load_header_from($) {	2157	sub load_header_from($) {
1378	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1379		2159
1380	utf8::encode $path;	2160	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	2162	or return;
1386		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1387	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1388		2171
1389	1	2172	1
1390	}	2173	}
1391		2174
		2175	# used to laod the header of an original map
1392	sub load_header_orig {	2176	sub load_header_orig {
1393	my ($self) = @_;	2177	my ($self) = @_;
1394		2178
1395	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1396	}	2180	}
1397		2181
		2182	# used to laod the header of an instantiated map
1398	sub load_header_temp {	2183	sub load_header_temp {
1399	my ($self) = @_;	2184	my ($self) = @_;
1400		2185
1401	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
1402	}	2187	}
1403		2188
		2189	# called after loading the header from an instantiated map
1404	sub prepare_temp {	2190	sub prepare_temp {
1405	my ($self) = @_;	2191	my ($self) = @_;
1406		2192
1407	$self->last_access ((delete $self->{last_access})	2193	$self->last_access ((delete $self->{last_access})
1408	|| $cf::RUNTIME); #d#	2194	|| $cf::RUNTIME); #d#
1409	# safety	2195	# safety
1410	$self->{instantiate_time} = $cf::RUNTIME	2196	$self->{instantiate_time} = $cf::RUNTIME
1411	if $self->{instantiate_time} > $cf::RUNTIME;	2197	if $self->{instantiate_time} > $cf::RUNTIME;
1412	}	2198	}
1413		2199
		2200	# called after loading the header from an original map
1414	sub prepare_orig {	2201	sub prepare_orig {
1415	my ($self) = @_;	2202	my ($self) = @_;
1416		2203
1417	$self->{load_original} = 1;	2204	$self->{load_original} = 1;
1418	$self->{instantiate_time} = $cf::RUNTIME;	2205	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1429	$self->load_header_orig	2216	$self->load_header_orig
1430	or return;	2217	or return;
1431	$self->prepare_orig;	2218	$self->prepare_orig;
1432	}	2219	}
1433		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
1434	$self->default_region (cf::region::find_by_path $self->{path})	2224	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	2225	unless $self->default_region;
1436		2226
1437	1	2227	1
1438	}	2228	}
1439		2229
1440	sub find;	2230	sub find;
1441	sub find {	2231	sub find {
1442	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1443		2233
		2234	cf::cede_to_tick;
		2235
1444	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1445		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1447		2240
1448	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1451	or return;	2243	or return;
1452		2244
1453	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1454		2246
1455	$map->load_header	2247	$map->load_header
1456	or return;	2248	or return;
1457		2249
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2251	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1461	$map->reset;	2255	$map->reset;
1462	undef $guard;
1463	return find $path;	2256	return find $path;
1464	}	2257	}
1465		2258
1466	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1467	}	2260	}
1468	}	2261	}
1469		2262
1470	sub pre_load { }	2263	sub pre_load { }
1471	sub post_load { }	2264	#sub post_load { } # XS
1472		2265
1473	sub load {	2266	sub load {
1474	my ($self) = @_;	2267	my ($self) = @_;
1475		2268
1476	local $self->{deny_reset} = 1; # loading can take a long time	2269	local $self->{deny_reset} = 1; # loading can take a long time
1477		2270
1478	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1480		2275
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1482		2278
1483	$self->in_memory (cf::MAP_LOADING);
1484
1485	$self->alloc;	2279	$self->alloc;
1486		2280
1487	$self->pre_load;	2281	$self->pre_load;
1488	Coro::cede;	2282	cf::cede_to_tick;
1489		2283
1490	$self->_load_objects ($self->{load_path}, 1)	2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
1491	or return;	2288	or return;
1492		2289
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1494	if delete $self->{load_original};	2291	if delete $self->{load_original};
1495		2292
1496	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2294	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2297	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1501	}	2302	}
1502	}
1503		2303
1504	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1505	# now do the right thing for maps	2313	# now do the right thing for maps
1506	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2316	unless $self->difficulty;
1517	Coro::cede;	2317	cf::cede_to_tick;
1518	$self->activate;	2318
1519	Coro::cede;	2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
1520	}	2329	}
1521		2330
1522	$self->post_load;	2331	$self->post_load;
1523	Coro::cede;
1524		2332
1525	$self->in_memory (cf::MAP_IN_MEMORY);	2333	1
1526	}	2334	}
1527		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1528	sub customise_for {	2339	sub customise_for {
1529	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1530		2341
1531	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2343	if $self->per_player;
1533		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1534	$self	2348	$self
1535	}
1536
1537	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {
1539	my ($map) = @_;
1540
1541	my @diag; # diagonal neighbours
1542
1543	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)
1545	or next;
1546	$neigh = find $neigh, $map
1547	or next;
1548	$neigh->load;
1549
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}
1553
1554	for (@diag) {
1555	my $neigh = find @$_
1556	or next;
1557	$neigh->load;
1558	}
1559	}	2349	}
1560		2350
1561	sub find_sync {	2351	sub find_sync {
1562	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1563		2353
1564	cf::sync_job { find $path, $origin }	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
1565	}	2359	}
1566		2360
1567	sub do_load_sync {	2361	sub do_load_sync {
1568	my ($map) = @_;	2362	my ($map) = @_;
1569		2363
1570	cf::sync_job { $map->load };	2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
1571	}	2369	}
1572		2370
1573	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2372	our $MAP_PREFETCHER = undef;
1575		2373
1576	sub find_async {	2374	sub find_async {
1577	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1578		2376
1579	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1580		2378
1581	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
1583	}	2381	}
1584		2382
1585	undef $MAP_PREFETCH{$path};	2383	$MAP_PREFETCH{$path} |= $load;
		2384
1586	$MAP_PREFETCHER ||= cf::async {	2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
1587	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2390	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2391	$map->load if $v;
		2392	}
1592		2393
1593	delete $MAP_PREFETCH{$path};	2394	delete $MAP_PREFETCH{$k};
1594	}	2395	}
1595	}	2396	}
1596	undef $MAP_PREFETCHER;	2397	undef $MAP_PREFETCHER;
1597	};	2398	};
1598	$MAP_PREFETCHER->prio (6);	2399	$MAP_PREFETCHER->prio (6);
1599		2400
1600	()	2401	()
1601	}	2402	}
1602		2403
		2404	# common code, used by both ->save and ->swapout
1603	sub save {	2405	sub _save {
1604	my ($self) = @_;	2406	my ($self) = @_;
1605
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;
1607		2407
1608	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1609		2409
1610	return unless $self->dirty;	2410	return unless $self->dirty;
1611		2411
…		…
1617	return if $self->{deny_save};	2417	return if $self->{deny_save};
1618		2418
1619	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1620		2420
1621	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1623	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1624		2427
1625	if ($uniq) {	2428	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2431	} else {
1629	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1630	}	2433	}
1631	}	2434	}
1632		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1633	sub swap_out {	2444	sub swap_out {
1634	my ($self) = @_;	2445	my ($self) = @_;
1635		2446
1636	# save first because save cedes
1637	$self->save;
1638
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1641	return if $self->players;	2451	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};
1644		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
1645	$self->clear;	2462	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2463	}
1648		2464
1649	sub reset_at {	2465	sub reset_at {
1650	my ($self) = @_;	2466	my ($self) = @_;
1651		2467
1652	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1655		2470
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2473
…		…
1669	my ($self) = @_;	2484	my ($self) = @_;
1670		2485
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2487
1673	return if $self->players;	2488	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2489
1676	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1677		2491
1678	$self->in_memory (cf::MAP_SWAPPED);	2492	$self->state (cf::MAP_SWAPPED);
1679		2493
1680	# need to save uniques path	2494	# need to save uniques path
1681	unless ($self->{deny_save}) {	2495	unless ($self->{deny_save}) {
1682	my $uniq = $self->uniq_path; utf8::encode $uniq;	2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1683		2497
…		…
1685	if $uniq;	2499	if $uniq;
1686	}	2500	}
1687		2501
1688	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1689		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2506	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2507
1694	$self->unlink_save;	2508	$self->unlink_save;
1695	$self->destroy;	2509	$self->destroy;
1696	}	2510	}
1697		2511
1698	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1699		2513
1700	sub nuke {	2514	sub nuke {
1701	my ($self) = @_;	2515	my ($self) = @_;
1702		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1703	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1704		2521
1705	$self->unlink_save;	2522	$self->unlink_save;
1706		2523
1707	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1708	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2529
1713	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1714		2532
1715	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
1716	}	2570	}
1717		2571
1718	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1719		2573
1720	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2575	instantiated unique items. May block.
1722		2576
1723	=cut	2577	=cut
1724		2578
1725	sub unique_maps() {	2579	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1727	or return;	2581	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2582	utf8::decode $_;
1733	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2585	? ()
1736	push @paths, cf::map::normalise $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2588	]
1738
1739	\@paths
1740	}	2589	}
1741		2590
1742	package cf;	2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
1743		2622
1744	=back	2623	=back
1745		2624
1746	=head3 cf::object	2625	=head3 cf::object
1747		2626
…		…
1751		2630
1752	=over 4	2631	=over 4
1753		2632
1754	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1755		2634
1756	Returns the inventory of the object _and_ their inventories, recursively.	2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
1757		2637
1758	=cut	2638	=cut
1759		2639
1760	sub inv_recursive_;	2640	sub inv_recursive_;
1761	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1764		2644
1765	sub inv_recursive {	2645	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1767	}	2647	}
1768		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
1769	package cf;	2677	package cf;
1770		2678
1771	=back	2679	=back
1772		2680
1773	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1782		2690
1783	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1784		2706
1785	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2708	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1790		2712
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2714
1793	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1795	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1798	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1799	}	2740	}
1800		2741
1801	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1802		2743
1803	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1816		2757
1817	=item $player_object->enter_link	2758	=item $player_object->enter_link
1818		2759
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2760	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2761
1821	The player should be reasonably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2763	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2764	though, as the player cannot control the character while it is on the link
		2765	map.
1823		2766
1824	Will never block.	2767	Will never block.
1825		2768
1826	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1827		2770
…		…
1847	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1848	my ($self) = @_;	2791	my ($self) = @_;
1849		2792
1850	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1851		2794
		2795	++$self->{_link_recursion};
		2796
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2798
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1856		2801
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1858	}	2803	}
1859		2804
1860	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1862		2809
1863	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1864		2811
1865	unless ($map) {	2812	unless ($map) {
1866	# restore original map position	2813	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1879		2826
1880	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1883		2830
1884	$map->load;	2831	$map->load;
1885	$map->load_diag;
1886		2832
1887	return unless $self->contr->active;	2833	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2834
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2836	if ($self->enter_map ($map, $x, $y)) {
1892	}	2837	# entering was successful
1893		2838	delete $self->{_link_recursion};
1894	cf::player->attach (	2839	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2840	$self->activate_recursive;
1896	my ($pl) = @_;
1897
1898	# abort map switching before logout
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},	2841	}
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2842
1908	# try to abort aborted map switching on player login :)	2843	}
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2844
1926	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1927		2846
		2847	Moves the player to the given map-path and coordinates by first freezing
		2848	her, loading and preparing them map, calling the provided $check callback
		2849	that has to return the map if sucecssful, and then unfreezes the player on
		2850	the new (success) or old (failed) map position. In either case, $done will
		2851	be called at the end of this process.
		2852
		2853	Note that $check will be called with a potentially non-loaded map, so if
		2854	it needs a loaded map it has to call C<< ->load >>.
		2855
1928	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1929		2859
1930	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2861	my ($self, $path, $x, $y, $check, $done) = @_;
		2862
		2863	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2864	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2865	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2866	($path, $x, $y) = @$EMERGENCY_POSITION;
		2867	}
		2868
		2869	# do generation counting so two concurrent goto's will be executed in-order
		2870	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2871
1933	$self->enter_link;	2872	$self->enter_link;
1934		2873
1935	(async {	2874	(async {
		2875	$Coro::current->{desc} = "player::goto $path $x $y";
		2876
		2877	# *tag paths override both path and x|y
		2878	if ($path =~ /^\*(.*)$/) {
		2879	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2880	my $ob = $obs[rand @obs];
		2881
		2882	# see if we actually can go there
		2883	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2884	$ob = $obs[rand @obs];
		2885	} else {
		2886	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888	# else put us there anyways for now #d#
		2889
		2890	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2891	} else {
		2892	($path, $x, $y) = (undef, undef, undef);
		2893	}
		2894	}
		2895
1936	my $map = eval {	2896	my $map = eval {
1937	my $map = cf::map::find $path;	2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
		2902	} else {
		2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
		2905
1939	$map	2906	$map
		2907	};
		2908
		2909	if ($@) {
		2910	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2911	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2912	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1944	})->prio (1);	2920	})->prio (1);
1945	}	2921	}
1946		2922
1947	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1948		2924
…		…
1968	}	2944	}
1969		2945
1970	sub prepare_random_map {	2946	sub prepare_random_map {
1971	my ($exit) = @_;	2947	my ($exit) = @_;
1972		2948
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2949	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2950	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2951	# that depends on the exit object
1978		2952
1979	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2955	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2956	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1986	}	2962	}
1987		2963
1988	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1989		2965
1990	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2968	my $meta = "$RANDOMDIR/$md5.meta";
1993		2969
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2972	undef $fh;
1997	aio_rename "$meta~", $meta;	2973	aio_rename "$meta~", $meta;
1998		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
2001	}	2981	}
2002	}	2982	}
2003		2983
2004	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
2006		2986
2007	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
2008		2988
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2989	$self->enter_link;
2021		2990
2022	(async {	2991	(async {
2023	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
2024	unless (eval {	2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
		2996
		2997	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2998	my $x = $exit->stats->hp;
		2999	my $y = $exit->stats->sp;
		3000
		3001	# special map handling
		3002	my $slaying = $exit->slaying;
		3003
		3004	# special map handling
		3005	if ($slaying eq "/!") {
		3006	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3007
		3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
		3011	$map = $exit->slaying;
		3012
		3013	} elsif ($slaying eq '!up') {
		3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
		3017
		3018	} elsif ($slaying eq '!down') {
		3019	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3020	$x = $exit->x;
		3021	$y = $exit->y;
		3022	}
		3023
2025	$self->goto ($slaying, $hp, $sp);	3024	$self->goto ($map, $x, $y);
2026		3025
		3026	# if exit is damned, update players death & WoR home-position
		3027	$self->contr->savebed ($map, $x, $y)
		3028	if $exit->flag (cf::FLAG_DAMNED);
		3029
2027	1;	3030	1
2028	}) {	3031	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	3033	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
2033		3036
2034	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
2035	$self->leave_link;	3038	$self->leave_link;
2036	}	3039	}
2037	})->prio (1);	3040	})->prio (1);
2038	}	3041	}
2039		3042
2040	=head3 cf::client	3043	=head3 cf::client
2041		3044
2042	=over 4	3045	=over 4
2043		3046
2044	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
2045		3048
2046	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
2047	should not be used under normal circumstances.	3050	them as required.
2048		3051
2049	=cut	3052	=cut
2050		3053
		3054	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3055
		3056	sub cf::client::send_big_packet {
		3057	my ($self, $pkt) = @_;
		3058
		3059	# try lzf for large packets
		3060	$pkt = "lzf " . Compress::LZF::compress $pkt
		3061	if 1024 <= length $pkt and $self->{can_lzf};
		3062
		3063	# split very large packets
		3064	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3065	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3066	$pkt = "frag";
		3067	}
		3068
		3069	$self->send_packet ($pkt);
		3070	}
		3071
		3072	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3073
		3074	Send a msg packet to the client, formatting the msg for the client if
		3075	necessary. C<$type> should be a string identifying the type of the
		3076	message, with C<log> being the default. If C<$color> is negative, suppress
		3077	the message unless the client supports the msg packet.
		3078
		3079	=cut
		3080
		3081	# non-persistent channels (usually the info channel)
		3082	our %CHANNEL = (
		3083	"c/motd" => {
		3084	id => "infobox",
		3085	title => "MOTD",
		3086	reply => undef,
		3087	tooltip => "The message of the day",
		3088	},
		3089	"c/identify" => {
		3090	id => "infobox",
		3091	title => "Identify",
		3092	reply => undef,
		3093	tooltip => "Items recently identified",
		3094	},
		3095	"c/examine" => {
		3096	id => "infobox",
		3097	title => "Examine",
		3098	reply => undef,
		3099	tooltip => "Signs and other items you examined",
		3100	},
		3101	"c/shopinfo" => {
		3102	id => "infobox",
		3103	title => "Shop Info",
		3104	reply => undef,
		3105	tooltip => "What your bargaining skill tells you about the shop",
		3106	},
		3107	"c/book" => {
		3108	id => "infobox",
		3109	title => "Book",
		3110	reply => undef,
		3111	tooltip => "The contents of a note or book",
		3112	},
		3113	"c/lookat" => {
		3114	id => "infobox",
		3115	title => "Look",
		3116	reply => undef,
		3117	tooltip => "What you saw there",
		3118	},
		3119	"c/who" => {
		3120	id => "infobox",
		3121	title => "Players",
		3122	reply => undef,
		3123	tooltip => "Shows players who are currently online",
		3124	},
		3125	"c/body" => {
		3126	id => "infobox",
		3127	title => "Body Parts",
		3128	reply => undef,
		3129	tooltip => "Shows which body parts you posess and are available",
		3130	},
		3131	"c/statistics" => {
		3132	id => "infobox",
		3133	title => "Statistics",
		3134	reply => undef,
		3135	tooltip => "Shows your primary statistics",
		3136	},
		3137	"c/skills" => {
		3138	id => "infobox",
		3139	title => "Skills",
		3140	reply => undef,
		3141	tooltip => "Shows your experience per skill and item power",
		3142	},
		3143	"c/shopitems" => {
		3144	id => "infobox",
		3145	title => "Shop Items",
		3146	reply => undef,
		3147	tooltip => "Shows the items currently for sale in this shop",
		3148	},
		3149	"c/resistances" => {
		3150	id => "infobox",
		3151	title => "Resistances",
		3152	reply => undef,
		3153	tooltip => "Shows your resistances",
		3154	},
		3155	"c/pets" => {
		3156	id => "infobox",
		3157	title => "Pets",
		3158	reply => undef,
		3159	tooltip => "Shows information abotu your pets/a specific pet",
		3160	},
		3161	"c/perceiveself" => {
		3162	id => "infobox",
		3163	title => "Perceive Self",
		3164	reply => undef,
		3165	tooltip => "You gained detailed knowledge about yourself",
		3166	},
		3167	"c/uptime" => {
		3168	id => "infobox",
		3169	title => "Uptime",
		3170	reply => undef,
		3171	tooltip => "How long the server has been running since last restart",
		3172	},
		3173	"c/mapinfo" => {
		3174	id => "infobox",
		3175	title => "Map Info",
		3176	reply => undef,
		3177	tooltip => "Information related to the maps",
		3178	},
		3179	"c/party" => {
		3180	id => "party",
		3181	title => "Party",
		3182	reply => "gsay ",
		3183	tooltip => "Messages and chat related to your party",
		3184	},
		3185	"c/death" => {
		3186	id => "death",
		3187	title => "Death",
		3188	reply => undef,
		3189	tooltip => "Reason for and more info about your most recent death",
		3190	},
		3191	"c/fatal" => {
		3192	id => "fatal",
		3193	title => "Fatal Error",
		3194	reply => undef,
		3195	tooltip => "Reason for the server disconnect",
		3196	},
		3197	"c/say" => $SAY_CHANNEL,
		3198	"c/chat" => $CHAT_CHANNEL,
		3199	);
		3200
2051	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
2052	my ($self, $text, $flags) = @_;	3202	my ($self, $channel, $msg, $color, @extra) = @_;
2053		3203
2054	utf8::encode $text;	3204	$msg = $self->pl->expand_cfpod ($msg)
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3205	unless $color & cf::NDI_VERBATIM;
2056	}
2057		3206
		3207	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3208
		3209	# check predefined channels, for the benefit of C
		3210	if ($CHANNEL{$channel}) {
		3211	$channel = $CHANNEL{$channel};
		3212
		3213	$self->ext_msg (channel_info => $channel);
		3214	$channel = $channel->{id};
		3215
		3216	} elsif (ref $channel) {
		3217	# send meta info to client, if not yet sent
		3218	unless (exists $self->{channel}{$channel->{id}}) {
		3219	$self->{channel}{$channel->{id}} = $channel;
		3220	$self->ext_msg (channel_info => $channel);
		3221	}
		3222
		3223	$channel = $channel->{id};
		3224	}
		3225
		3226	return unless @extra || length $msg;
		3227
		3228	# default colour, mask it out
		3229	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3230	if $color & cf::NDI_DEF;
		3231
		3232	my $pkt = "msg "
		3233	. $self->{json_coder}->encode (
		3234	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3235	);
		3236
		3237	$self->send_big_packet ($pkt);
		3238	}
		3239
2058	=item $client->ext_event ($type, %msg)	3240	=item $client->ext_msg ($type, @msg)
2059		3241
2060	Sends an exti event to the client.	3242	Sends an ext event to the client.
2061		3243
2062	=cut	3244	=cut
2063		3245
2064	sub cf::client::ext_event($$%) {	3246	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	3247	my ($self, $type, @msg) = @_;
2066		3248
2067	$msg{msgtype} = "event_$type";	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2068	$self->send_packet ("ext " . cf::to_json \%msg);
2069	}	3250	}
2070		3251
2071	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
2072		3253
2073	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3255	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3256	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3257
2077	Queries can fail, so check the return code. Or don't, as queries will become	3258	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3259	become reliable at some point in the future.
2079		3260
2080	=cut	3261	=cut
2081		3262
2082	sub cf::client::query {	3263	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3272	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3274
2094	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3276	if @{ $self->{query_queue} } == 1;
		3277
		3278	1
2096	}	3279	}
2097		3280
2098	cf::client->attach (	3281	cf::client->attach (
		3282	on_connect => sub {
		3283	my ($ns) = @_;
		3284
		3285	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3286	},
2099	on_reply => sub {	3287	on_reply => sub {
2100	my ($ns, $msg) = @_;	3288	my ($ns, $msg) = @_;
2101		3289
2102	# this weird shuffling is so that direct followup queries	3290	# this weird shuffling is so that direct followup queries
2103	# get handled first	3291	# get handled first
…		…
2115	} else {	3303	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3304	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3305	}
2118	}	3306	}
2119	},	3307	},
		3308	on_exticmd => sub {
		3309	my ($ns, $buf) = @_;
		3310
		3311	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3312
		3313	if (ref $msg) {
		3314	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3315
		3316	if (my $cb = $EXTIACMD{$type}) {
		3317	$cb->(
		3318	$ns,
		3319	sub {
		3320	$ns->ext_msg ("reply-$reply", @_)
		3321	if $reply;
		3322	},
		3323	@payload
		3324	);
		3325	} else {
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_msg ("reply-$reply", @reply)
		3333	if $reply;
		3334	}
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
2120	);	3341	);
2121		3342
2122	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2123		3344
2124	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2140		3361
2141	$coro	3362	$coro
2142	}	3363	}
2143		3364
2144	cf::client->attach (	3365	cf::client->attach (
2145	on_destroy => sub {	3366	on_client_destroy => sub {
2146	my ($ns) = @_;	3367	my ($ns) = @_;
2147		3368
2148	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2149	},	3370	},
2150	);	3371	);
…		…
2165	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2167		3388
2168	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2169		3390
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
2171		3396
2172	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2173		3398
2174	=pod	3399	=pod
2175		3400
2176	The following functions and methods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2177		3402
2178	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
2179	cf::object::player player	3408	cf::object::player
2180	cf::player peaceful	3409	player
2181	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2182		3416
2183	=cut	3417	=cut
2184		3418
2185	for (	3419	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2190	) {	3426	) {
2191	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2194	for @funs;	3429	for @funs;
2195	}	3430	}
2196		3431
…		…
2211		3446
2212	my $qcode = $code;	3447	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2215		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2216	local $_;	3454	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3455
2219	my $eval =	3456	my $eval =
2220	"do {\n"	3457	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3460	. $code
2224	. "\n}"	3461	. "\n}"
2225	;	3462	;
2226		3463
		3464	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2230		3473
2231	if ($@) {	3474	if ($@) {
2232	warn "$@";	3475	warn "$@",
2233	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2234	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2235	}	3478	}
2236		3479
2237	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2238	}	3481	}
2239		3482
…		…
2253	=cut	3496	=cut
2254		3497
2255	sub register_script_function {	3498	sub register_script_function {
2256	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2257		3500
2258	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2259	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2260	}	3503	}
2261		3504
2262	=back	3505	=back
2263		3506
2264	=cut	3507	=cut
2265
2266	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434		3508
2435	#############################################################################	3509	#############################################################################
2436	# the server's init and main functions	3510	# the server's init and main functions
2437		3511
		3512	{
		3513	package cf::face;
		3514
		3515	our %HASH; # hash => idx
		3516	our @DATA; # dynamically-created facedata, only faceste 0 used
		3517	our @FOFS; # file offset, if > 0
		3518	our @SIZE; # size of face, in octets
		3519	our @META; # meta hash of face, if any
		3520	our $DATAFH; # facedata filehandle
		3521
		3522	# internal api, not finalised
		3523	sub set {
		3524	my ($name, $type, $data) = @_;
		3525
		3526	my $idx = cf::face::find $name;
		3527
		3528	if ($idx) {
		3529	delete $HASH{cf::face::get_csum $idx};
		3530	} else {
		3531	$idx = cf::face::alloc $name;
		3532	}
		3533
		3534	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3535
		3536	cf::face::set_type $idx, $type;
		3537	cf::face::set_csum $idx, 0, $hash;
		3538
		3539	# we need to destroy the SV itself, not just modify it, as a running ix
		3540	# might hold a reference to it: "delete" achieves that.
		3541	delete $FOFS[0][$idx];
		3542	delete $DATA[0][$idx];
		3543	$DATA[0][$idx] = $data;
		3544	$SIZE[0][$idx] = length $data;
		3545	delete $META[$idx];
		3546	$HASH{$hash} = $idx;#d#
		3547
		3548	$idx
		3549	}
		3550
		3551	sub _get_data($$$) {
		3552	my ($idx, $set, $cb) = @_;
		3553
		3554	if (defined $DATA[$set][$idx]) {
		3555	$cb->($DATA[$set][$idx]);
		3556	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3557	my $size = $SIZE[$set][$idx];
		3558	my $buf;
		3559	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3560	if ($_[0] == $size) {
		3561	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3562	$cb->($buf);
		3563	} else {
		3564	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3565	}
		3566	};
		3567	} else {
		3568	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3569	}
		3570	}
		3571
		3572	# rather ineffient
		3573	sub cf::face::get_data($;$) {
		3574	my ($idx, $set) = @_;
		3575
		3576	_get_data $idx, $set, Coro::rouse_cb;
		3577	Coro::rouse_wait
		3578	}
		3579
		3580	sub cf::face::ix {
		3581	my ($ns, $set, $idx, $pri) = @_;
		3582
		3583	_get_data $idx, $set, sub {
		3584	$ns->ix_send ($idx, $pri, $_[0]);
		3585	};
		3586	}
		3587	}
		3588
2438	sub load_facedata($) {	3589	sub load_facedata($) {
2439	my ($path) = @_;	3590	my ($path) = @_;
2440		3591
		3592	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3593
2441	warn "loading facedata from $path\n";	3594	trace "loading facedata from $path\n";
2442		3595
2443	my $facedata;	3596	my $facedata = decode_storable load_file "$path/faceinfo";
2444	0 < aio_load $path, $facedata
2445	or die "$path: $!";
2446
2447	$facedata = Coro::Storable::thaw $facedata;
2448		3597
2449	$facedata->{version} == 2	3598	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3599	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3600
		3601	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3602	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3603
		3604	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3605
		3606	# BEGIN ATOMIC
		3607	# from here on, everything must be atomic - no thread switch allowed
		3608	my $t1 = EV::time;
2451		3609
2452	{	3610	{
2453	my $faces = $facedata->{faceinfo};	3611	my $faces = $facedata->{faceinfo};
2454		3612
2455	while (my ($face, $info) = each %$faces) {	3613	for my $face (sort keys %$faces) {
		3614	my $info = $faces->{$face};
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3615	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3616
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3617	cf::face::set_visibility $idx, $info->{visibility};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3618	cf::face::set_magicmap $idx, $info->{magicmap};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3619	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
2460	Coro::cede;	3620	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3621	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3622	$cf::face::HASH{$info->{hash64}} = $idx;
		3623	delete $cf::face::META[$idx];
2461	}	3624	}
2462		3625
2463	while (my ($face, $info) = each %$faces) {	3626	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3627	next unless $info->{smooth};
		3628
2465	my $idx = cf::face::find $face	3629	my $idx = cf::face::find $face
2466	or next;	3630	or next;
		3631
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3632	if (my $smooth = cf::face::find $info->{smooth}) {
		3633	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3634	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3635	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3636	error "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3637	}
2472	Coro::cede;
2473	}	3638	}
2474	}	3639	}
2475		3640
2476	{	3641	{
2477	my $anims = $facedata->{animinfo};	3642	my $anims = $facedata->{animinfo};
2478		3643
2479	while (my ($anim, $info) = each %$anims) {	3644	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3645	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;
2482	}	3646	}
2483		3647
2484	cf::anim::invalidate_all; # d'oh	3648	cf::anim::invalidate_all; # d'oh
2485	}	3649	}
2486		3650
		3651	{
		3652	my $res = $facedata->{resource};
		3653
		3654	while (my ($name, $info) = each %$res) {
		3655	if (defined (my $type = $info->{type})) {
		3656	# TODO: different hash - must free and use new index, or cache ixface data queue
		3657	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3658
		3659	cf::face::set_type $idx, $type;
		3660	cf::face::set_csum $idx, 0, $info->{hash};
		3661	$cf::face::SIZE[0][$idx] = $info->{size};
		3662	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3663	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3664	$cf::face::HASH{$info->{hash}} = $idx;
		3665	} else {
		3666	# $RESOURCE{$name} = $info; # unused
		3667	}
		3668	}
		3669	}
		3670
		3671	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3672
		3673	# HACK to clear player env face cache, we need some signal framework
		3674	# for this (global event?)
		3675	%ext::player_env::MUSIC_FACE_CACHE = ();
		3676
		3677	# END ATOMIC
		3678
		3679	cf::debug "facedata atomic update time ", EV::time - $t1;
		3680
		3681	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3682
		3683	aio_close $fh if $fh; # close old facedata
		3684
2487	1	3685	1
2488	}	3686	}
2489		3687
		3688	register_exticmd fx_want => sub {
		3689	my ($ns, $want) = @_;
		3690
		3691	while (my ($k, $v) = each %$want) {
		3692	$ns->fx_want ($k, $v);
		3693	}
		3694	};
		3695
		3696	sub load_resource_file($) {
		3697	my $guard = lock_acquire "load_resource_file";
		3698
		3699	my $status = load_resource_file_ $_[0];
		3700	get_slot 0.1, 100;
		3701	cf::arch::commit_load;
		3702
		3703	$status
		3704	}
		3705
		3706	sub reload_exp_table {
		3707	_reload_exp_table;
		3708
		3709	cf::face::set
		3710	"res/exp_table" => FT_RSRC,
		3711	JSON::XS->new->utf8->canonical->encode (
		3712	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3713	);
		3714	}
		3715
		3716	sub reload_materials {
		3717	_reload_materials;
		3718	}
		3719
		3720	sub reload_regions {
		3721	# HACK to clear player env face cache, we need some signal framework
		3722	# for this (global event?)
		3723	%ext::player_env::MUSIC_FACE_CACHE = ();
		3724
		3725	load_resource_file "$MAPDIR/regions"
		3726	or die "unable to load regions file\n";
		3727
		3728	for (cf::region::list) {
		3729	$_->{match} = qr/$_->{match}/
		3730	if exists $_->{match};
		3731	}
		3732	}
		3733
2490	sub reload_facedata {	3734	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3735	load_facedata $DATADIR
2492	or die "unable to load facedata\n";	3736	or die "unable to load facedata\n";
2493	}	3737	}
2494		3738
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3739	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3740	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3741	or die "unable to load archetypes\n";
		3742
		3743	cf::face::set
		3744	"res/skill_info" => FT_RSRC,
		3745	JSON::XS->new->utf8->canonical->encode (
		3746	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3747	);
		3748
		3749	cf::face::set
		3750	"res/spell_paths" => FT_RSRC,
		3751	JSON::XS->new->utf8->canonical->encode (
		3752	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3753	);
2503	}	3754	}
2504		3755
2505	sub reload_treasures {	3756	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3757	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3758	or die "unable to load treasurelists\n";
2508	}	3759	}
2509		3760
		3761	sub reload_sound {
		3762	trace "loading sound config from $DATADIR/sound\n";
		3763
		3764	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3765
		3766	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3767	my $sound = $soundconf->{compat}[$_]
		3768	or next;
		3769
		3770	my $face = cf::face::find "sound/$sound->[1]";
		3771	cf::sound::set $sound->[0] => $face;
		3772	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3773	}
		3774
		3775	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3776	my $face = cf::face::find "sound/$v";
		3777	cf::sound::set $k => $face;
		3778	}
		3779	}
		3780
2510	sub reload_resources {	3781	sub reload_resources {
2511	warn "reloading resource files...\n";	3782	trace "reloading resource files...\n";
2512		3783
		3784	reload_materials;
		3785	reload_facedata;
		3786	reload_exp_table;
		3787	reload_sound;
		3788	reload_archetypes;
2513	reload_regions;	3789	reload_regions;
2514	reload_facedata;
2515	reload_archetypes;
2516	reload_treasures;	3790	reload_treasures;
2517		3791
2518	warn "finished reloading resource files\n";	3792	trace "finished reloading resource files\n";
2519	}	3793	}
2520		3794
2521	sub init {	3795	sub reload_config {
2522	reload_resources;	3796	trace "reloading config file...\n";
2523	}
2524		3797
2525	sub cfg_load {	3798	my $config = load_file "$CONFDIR/config";
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3799	utf8::decode $config;
2527	or return;	3800	*CFG = decode_yaml $config;
2528		3801
2529	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;
2531
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2533		3803
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3804	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3805	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2536		3806
2537	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
…		…
2541	};	3811	};
2542	warn $@ if $@;	3812	warn $@ if $@;
2543	}	3813	}
2544	}	3814	}
2545		3815
		3816	sub pidfile() {
		3817	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3818	or die "$PIDFILE: $!";
		3819	flock $fh, &Fcntl::LOCK_EX
		3820	or die "$PIDFILE: flock: $!";
		3821	$fh
		3822	}
		3823
		3824	# make sure only one server instance is running at any one time
		3825	sub atomic {
		3826	my $fh = pidfile;
		3827
		3828	my $pid = <$fh>;
		3829	kill 9, $pid if $pid > 0;
		3830
		3831	seek $fh, 0, 0;
		3832	print $fh $$;
		3833	}
		3834
		3835	sub main_loop {
		3836	trace "EV::loop starting\n";
		3837	if (1) {
		3838	EV::loop;
		3839	}
		3840	trace "EV::loop returned\n";
		3841	goto &main_loop unless $REALLY_UNLOOP;
		3842	}
		3843
2546	sub main {	3844	sub main {
		3845	cf::init_globals; # initialise logging
		3846
		3847	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3848	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3849	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3850	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3851
		3852	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3853
2547	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3856	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3857	(async {
2551	Event::one_event;	3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3859	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3860	})->prio (Coro::PRIO_MAX);
2553	};	3861	};
2554		3862
2555	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
		3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
2556	db_init;	3868	db_init;
		3869
		3870	cf::init_anim;
		3871	cf::init_attackmess;
		3872	cf::init_dynamic;
		3873
		3874	cf::load_settings;
		3875
		3876	reload_resources;
		3877	reload_config;
		3878
		3879	cf::init_uuid;
		3880	cf::init_signals;
		3881	cf::init_skills;
		3882
		3883	cf::init_beforeplay;
		3884
		3885	atomic;
		3886
2557	load_extensions;	3887	load_extensions;
2558		3888
2559	$TICK_WATCHER->start;	3889	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3890
		3891	# no (long-running) fork's whatsoever before this point(!)
		3892	use POSIX ();
		3893	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3894
		3895	cf::_post_init 0;
		3896	};
		3897
		3898	cf::object::thawer::errors_are_fatal 0;
		3899	info "parse errors in files are no longer fatal from this point on.\n";
		3900
		3901	AE::postpone {
		3902	undef &main; # free gobs of memory :)
		3903	};
		3904
		3905	goto &main_loop;
2561	}	3906	}
2562		3907
2563	#############################################################################	3908	#############################################################################
2564	# initialisation and cleanup	3909	# initialisation and cleanup
2565		3910
2566	# install some emergency cleanup handlers	3911	# install some emergency cleanup handlers
2567	BEGIN {	3912	BEGIN {
		3913	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3914	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3916	cf::cleanup "SIG$signal";
2576	},
2577	);	3917	};
		3918	}
		3919	}
		3920
		3921	sub write_runtime_sync {
		3922	my $t0 = AE::time;
		3923
		3924	# first touch the runtime file to show we are still running:
		3925	# the fsync below can take a very very long time.
		3926
		3927	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3928
		3929	my $guard = cf::lock_acquire "write_runtime";
		3930
		3931	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3932	or return;
		3933
		3934	my $value = $cf::RUNTIME + 90 + 10;
		3935	# 10 is the runtime save interval, for a monotonic clock
		3936	# 60 allows for the watchdog to kill the server.
		3937
		3938	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3939	and return;
		3940
		3941	# always fsync - this file is important
		3942	aio_fsync $fh
		3943	and return;
		3944
		3945	# touch it again to show we are up-to-date
		3946	aio_utime $fh, undef, undef;
		3947
		3948	close $fh
		3949	or return;
		3950
		3951	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3952	and return;
		3953
		3954	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3955
2578	}	3956	1
		3957	}
		3958
		3959	our $uuid_lock;
		3960	our $uuid_skip;
		3961
		3962	sub write_uuid_sync($) {
		3963	$uuid_skip ||= $_[0];
		3964
		3965	return if $uuid_lock;
		3966	local $uuid_lock = 1;
		3967
		3968	my $uuid = "$LOCALDIR/uuid";
		3969
		3970	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3971	or return;
		3972
		3973	my $value = uuid_seq uuid_cur;
		3974
		3975	unless ($value) {
		3976	info "cowardly refusing to write zero uuid value!\n";
		3977	return;
		3978	}
		3979
		3980	my $value = uuid_str $value + $uuid_skip;
		3981	$uuid_skip = 0;
		3982
		3983	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3984	and return;
		3985
		3986	# always fsync - this file is important
		3987	aio_fsync $fh
		3988	and return;
		3989
		3990	close $fh
		3991	or return;
		3992
		3993	aio_rename "$uuid~", $uuid
		3994	and return;
		3995
		3996	trace "uuid file written ($value).\n";
		3997
		3998	1
		3999
		4000	}
		4001
		4002	sub write_uuid($$) {
		4003	my ($skip, $sync) = @_;
		4004
		4005	$sync ? write_uuid_sync $skip
		4006	: async { write_uuid_sync $skip };
2579	}	4007	}
2580		4008
2581	sub emergency_save() {	4009	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	4010	my $freeze_guard = cf::freeze_mainloop;
2583		4011
2584	warn "enter emergency perl save\n";	4012	info "emergency_perl_save: enter\n";
		4013
		4014	# this is a trade-off: we want to be very quick here, so
		4015	# save all maps without fsync, and later call a global sync
		4016	# (which in turn might be very very slow)
		4017	local $USE_FSYNC = 0;
2585		4018
2586	cf::sync_job {	4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
2587	# use a peculiar iteration method to avoid tripping on perl	4022	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	4023	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	4024	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	4025	info "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	4026	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	4027	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	4030	$pl->save;
2595	}	4031	}
2596	warn "end emergency player save\n";	4032	info "emergency_perl_save: end player save\n";
2597		4033
2598	warn "begin emergency map save\n";	4034	cf::write_runtime_sync; # external watchdog should not bark
		4035
		4036	info "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	4037	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	4038	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	4039	$map->valid or next;
2602	$map->save;	4040	$map->save;
2603	}	4041	}
2604	warn "end emergency map save\n";	4042	info "emergency_perl_save: end map save\n";
2605		4043
2606	warn "begin emergency database checkpoint\n";	4044	cf::write_runtime_sync; # external watchdog should not bark
		4045
		4046	info "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	4047	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	4048	info "emergency_perl_save: end database checkpoint\n";
		4049
		4050	info "emergency_perl_save: begin write uuid\n";
		4051	write_uuid_sync 1;
		4052	info "emergency_perl_save: end write uuid\n";
		4053
		4054	cf::write_runtime_sync; # external watchdog should not bark
		4055
		4056	trace "emergency_perl_save: syncing database to disk";
		4057	BDB::db_env_txn_checkpoint $DB_ENV;
		4058
		4059	info "emergency_perl_save: starting sync\n";
		4060	IO::AIO::aio_sync sub {
		4061	info "emergency_perl_save: finished sync\n";
		4062	};
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	trace "emergency_perl_save: flushing outstanding aio requests";
		4067	while (IO::AIO::nreqs || BDB::nreqs) {
		4068	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4069	}
		4070
		4071	cf::write_runtime_sync; # external watchdog should not bark
2609	};	4072	};
2610		4073
2611	warn "leave emergency perl save\n";	4074	info "emergency_perl_save: leave\n";
2612	}	4075	}
2613		4076
2614	sub post_cleanup {	4077	sub post_cleanup {
2615	my ($make_core) = @_;	4078	my ($make_core) = @_;
2616		4079
		4080	IO::AIO::flush;
		4081
2617	warn Carp::longmess "post_cleanup backtrace"	4082	error Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	4083	if $make_core;
		4084
		4085	my $fh = pidfile;
		4086	unlink $PIDFILE if <$fh> == $$;
		4087	}
		4088
		4089	# a safer delete_package, copied from Symbol
		4090	sub clear_package($) {
		4091	my $pkg = shift;
		4092
		4093	# expand to full symbol table name if needed
		4094	unless ($pkg =~ /^main::.*::$/) {
		4095	$pkg = "main$pkg" if $pkg =~ /^::/;
		4096	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4097	$pkg .= '::' unless $pkg =~ /::$/;
		4098	}
		4099
		4100	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4101	my $stem_symtab = *{$stem}{HASH};
		4102
		4103	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4104	or return;
		4105
		4106	# clear all symbols
		4107	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4108	for my $name (keys %$leaf_symtab) {
		4109	_gv_clear *{"$pkg$name"};
		4110	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4111	}
2619	}	4112	}
2620		4113
2621	sub do_reload_perl() {	4114	sub do_reload_perl() {
2622	# can/must only be called in main	4115	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2624	warn "can only reload from main coroutine";	4117	error "can only reload from main coroutine";
2625	return;	4118	return;
2626	}	4119	}
2627		4120
2628	warn "reloading...";	4121	return if $RELOAD++;
2629		4122
2630	warn "entering sync_job";	4123	my $t1 = AE::time;
2631		4124
		4125	while ($RELOAD) {
		4126	cf::get_slot 0.1, -1, "reload_perl";
		4127	info "perl_reload: reloading...";
		4128
		4129	trace "perl_reload: entering sync_job";
		4130
2632	cf::sync_job {	4131	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark
2634	cf::emergency_save;	4132	#cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark
2636		4133
2637	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;
2639
2640	# if anything goes wrong in here, we should simply crash as we already saved
2641
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;
2653	warn "iterate...";
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";	4134	trace "perl_reload: cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();	4136	%EXT_CORO = ();
2661		4137
2662	warn "removing commands";	4138	trace "perl_reload: removing commands";
2663	%COMMAND = ();	4139	%COMMAND = ();
2664		4140
2665	warn "removing ext commands";	4141	trace "perl_reload: removing ext/exti commands";
2666	%EXTCMD = ();	4142	%EXTCMD = ();
		4143	%EXTICMD = ();
2667		4144
2668	warn "unloading/nuking all extensions";	4145	trace "perl_reload: unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	4146	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	4147	trace "... unloading $pkg";
2671		4148
2672	if (my $cb = $pkg->can ("unload")) {	4149	if (my $cb = $pkg->can ("unload")) {
2673	eval {	4150	eval {
2674	$cb->($pkg);	4151	$cb->($pkg);
2675	1	4152	1
2676	} or warn "$pkg unloaded, but with errors: $@";	4153	} or error "$pkg unloaded, but with errors: $@";
		4154	}
		4155
		4156	trace "... clearing $pkg";
		4157	clear_package $pkg;
2677	}	4158	}
2678		4159
2679	warn "... nuking $pkg";
2680	Symbol::delete_package $pkg;
2681	}
2682
2683	warn "unloading all perl modules loaded from $LIBDIR";	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2684	while (my ($k, $v) = each %INC) {	4161	while (my ($k, $v) = each %INC) {
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		4163
2687	warn "... unloading $k";	4164	trace "... unloading $k";
2688	delete $INC{$k};	4165	delete $INC{$k};
2689		4166
2690	$k =~ s/\.pm$//;	4167	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;	4168	$k =~ s/\//::/g;
2692		4169
2693	if (my $cb = $k->can ("unload_module")) {	4170	if (my $cb = $k->can ("unload_module")) {
2694	$cb->();	4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2695	}	4175	}
2696		4176
2697	Symbol::delete_package $k;
2698	}
2699
2700	warn "getting rid of safe::, as good as possible";	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		4180
2704	warn "unloading cf.pm \"a bit\"";	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
		4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2706		4184
2707	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2708	# and global variables created in xs	4186	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2710		4188
2711	warn "unload completed, starting to reload now";	4189	info "perl_reload: unload completed, starting to reload now";
2712		4190
2713	warn "reloading cf.pm";	4191	trace "perl_reload: reloading cf.pm";
2714	require cf;	4192	require cf;
2715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2716		4194
2717	warn "loading config and database again";	4195	trace "perl_reload: loading config and database again";
2718	cf::cfg_load;	4196	cf::reload_config;
2719		4197
2720	warn "loading extensions";	4198	trace "perl_reload: loading extensions";
2721	cf::load_extensions;	4199	cf::load_extensions;
2722		4200
		4201	if ($REATTACH_ON_RELOAD) {
2723	warn "reattaching attachments to objects/players";	4202	trace "perl_reload: reattaching attachments to objects/players";
2724	_global_reattach; # objects, sockets	4203	_global_reattach; # objects, sockets
2725	warn "reattaching attachments to maps";	4204	trace "perl_reload: reattaching attachments to maps";
2726	reattach $_ for values %MAP;	4205	reattach $_ for values %MAP;
2727	warn "reattaching attachments to players";	4206	trace "perl_reload: reattaching attachments to players";
2728	reattach $_ for values %PLAYER;	4207	reattach $_ for values %PLAYER;
		4208	}
2729		4209
2730	warn "leaving sync_job";	4210	cf::_post_init 1;
2731		4211
		4212	trace "perl_reload: leaving sync_job";
		4213
2732	1	4214	1
2733	} or do {	4215	} or do {
2734	warn $@;	4216	error $@;
2735	warn "error while reloading, exiting.";	4217	cf::cleanup "perl_reload: error, exiting.";
2736	exit 1;	4218	};
		4219
		4220	--$RELOAD;
2737	};	4221	}
2738		4222
2739	warn "reloaded";	4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
2740	};	4225	};
2741		4226
2742	our $RELOAD_WATCHER; # used only during reload	4227	our $RELOAD_WATCHER; # used only during reload
2743		4228
2744	sub reload_perl() {	4229	sub reload_perl() {
2745	# doing reload synchronously and two reloads happen back-to-back,	4230	# doing reload synchronously and two reloads happen back-to-back,
2746	# coro crashes during coro_state_free->destroy here.	4231	# coro crashes during coro_state_free->destroy here.
2747		4232
2748	$RELOAD_WATCHER ||= Event->timer (	4233	$RELOAD_WATCHER ||= cf::async {
2749	reentrant => 0,	4234	Coro::AIO::aio_wait cache_extensions;
2750	after => 0,	4235
2751	data => WF_AUTOCANCEL,	4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2752	cb => sub {
2753	do_reload_perl;	4237	do_reload_perl;
2754	undef $RELOAD_WATCHER;	4238	undef $RELOAD_WATCHER;
2755	},	4239	};
2756	);	4240	};
2757	}	4241	}
2758		4242
2759	register_command "reload" => sub {	4243	register_command "reload" => sub {
2760	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2761		4245
2762	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2763	$who->message ("reloading server.");	4247	$who->message ("reloading server.");
		4248	async {
		4249	$Coro::current->{desc} = "perl_reload";
2764	async { reload_perl };	4250	reload_perl;
		4251	};
2765	}	4252	}
2766	};	4253	};
2767		4254
2768	unshift @INC, $LIBDIR;	4255	#############################################################################
2769		4256
2770	my $bug_warning = 0;	4257	my $bug_warning = 0;
2771		4258
2772	our @WAIT_FOR_TICK;
2773	our @WAIT_FOR_TICK_BEGIN;
2774
2775	sub wait_for_tick {	4259	sub wait_for_tick() {
2776	return unless $TICK_WATCHER->is_active;	4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2777	return if $Coro::current == $Coro::main;
2778		4261
2779	my $signal = new Coro::Signal;	4262	$WAIT_FOR_TICK->wait;
2780	push @WAIT_FOR_TICK, $signal;
2781	$signal->wait;
2782	}	4263	}
2783		4264
2784	sub wait_for_tick_begin {	4265	sub wait_for_tick_begin() {
2785	return unless $TICK_WATCHER->is_active;	4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2786	return if $Coro::current == $Coro::main;
2787		4267
2788	my $signal = new Coro::Signal;	4268	my $signal = new Coro::Signal;
2789	push @WAIT_FOR_TICK_BEGIN, $signal;	4269	push @WAIT_FOR_TICK_BEGIN, $signal;
2790	$signal->wait;	4270	$signal->wait;
2791	}	4271	}
2792		4272
2793	$TICK_WATCHER = Event->timer (	4273	sub tick {
2794	reentrant => 0,
2795	parked => 1,
2796	prio => 0,
2797	at => $NEXT_TICK || $TICK,
2798	data => WF_AUTOCANCEL,
2799	cb => sub {
2800	if ($Coro::current != $Coro::main) {	4274	if ($Coro::current != $Coro::main) {
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4275	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	4276	unless ++$bug_warning > 10;
2803	return;	4277	return;
2804	}	4278	}
2805		4279
2806	$NOW = Event::time;	4280	cf::one_tick; # one server iteration
2807		4281
2808	cf::server_tick; # one server iteration	4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2809		4283
2810	$RUNTIME += $TICK;
2811	$NEXT_TICK += $TICK;
2812
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2814	$NEXT_RUNTIME_WRITE = $NOW + 10;	4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2815	Coro::async_pool {	4286	Coro::async_pool {
		4287	$Coro::current->{desc} = "runtime saver";
2816	write_runtime	4288	write_runtime_sync
2817	or warn "ERROR: unable to write runtime file: $!";	4289	or error "ERROR: unable to write runtime file: $!";
2818	};
2819	}	4290	};
		4291	}
2820		4292
2821	# my $AFTER = Event::time;
2822	# warn $AFTER - $NOW;#d#
2823
2824	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2826
2827	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;
2829
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2831	$sig->send;	4294	$sig->send;
2832	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;
2835	}
2836
2837	_post_tick;
2838	},	4295	}
2839	);	4296	$WAIT_FOR_TICK->broadcast;
		4297
		4298	$LOAD = ($NOW - $TICK_START) / $TICK;
		4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4300
		4301	if (0) {
		4302	if ($NEXT_TICK) {
		4303	my $jitter = $TICK_START - $NEXT_TICK;
		4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4305	debug "jitter $JITTER\n";#d#
		4306	}
		4307	}
		4308	}
2840		4309
2841	{	4310	{
2842	BDB::max_poll_time $TICK * 0.1;	4311	# configure BDB
2843	$BDB_POLL_WATCHER = Event->io (	4312	info "initialising database";
2844	reentrant => 0,	4313
2845	fd => BDB::poll_fileno,
2846	poll => 'r',
2847	prio => 0,
2848	data => WF_AUTOCANCEL,
2849	cb => \&BDB::poll_cb,
2850	);
2851	BDB::min_parallel 8;	4314	BDB::min_parallel 16;
2852		4315	BDB::max_poll_reqs $TICK * 0.1;
2853	BDB::set_sync_prepare {	4316	#$AnyEvent::BDB::WATCHER->priority (1);
2854	my $status;
2855	my $current = $Coro::current;
2856	(
2857	sub {
2858	$status = $!;
2859	$current->ready; undef $current;
2860	},
2861	sub {
2862	Coro::schedule while defined $current;
2863	$! = $status;
2864	},
2865	)
2866	};
2867		4317
2868	unless ($DB_ENV) {	4318	unless ($DB_ENV) {
2869	$DB_ENV = BDB::db_env_create;	4319	$DB_ENV = BDB::db_env_create;
		4320	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4321	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4322	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4323	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4324	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2870		4325
2871	cf::sync_job {	4326	cf::sync_job {
2872	eval {	4327	eval {
2873	BDB::db_env_open	4328	BDB::db_env_open
2874	$DB_ENV,	4329	$DB_ENV,
2875	$BDB_ENV_DIR,	4330	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4331	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	4333	0666;
2879		4334
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;
2884	};	4336	};
2885		4337
2886	cf::cleanup "db_env_open(db): $@" if $@;	4338	cf::cleanup "db_env_open(db): $@" if $@;
2887	};	4339	};
2888	}	4340	}
		4341
		4342	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4343	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4344	};
		4345	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4346	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4347	};
		4348	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4349	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4350	};
		4351
		4352	info "database initialised";
2889	}	4353	}
2890		4354
2891	{	4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
2892	IO::AIO::min_parallel 8;	4359	IO::AIO::min_parallel 8;
2893
2894	undef $Coro::AIO::WATCHER;
2895	IO::AIO::max_poll_time $TICK * 0.1;	4360	IO::AIO::max_poll_time $TICK * 0.1;
2896	$AIO_POLL_WATCHER = Event->io (	4361	undef $AnyEvent::AIO::WATCHER;
2897	reentrant => 0,	4362	info "aio initialised";
2898	data => WF_AUTOCANCEL,	4363	}
2899	fd => IO::AIO::poll_fileno,	4364
2900	poll => 'r',	4365	our $_log_backtrace;
2901	prio => 6,	4366	our $_log_backtrace_last;
2902	cb => \&IO::AIO::poll_cb,	4367
2903	);	4368	sub _log_backtrace {
		4369	my ($msg, @addr) = @_;
		4370
		4371	$msg =~ s/\n$//;
		4372
		4373	if ($_log_backtrace_last eq $msg) {
		4374	LOG llevInfo, "[ABT] $msg\n";
		4375	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4376	# limit the # of concurrent backtraces
		4377	} elsif ($_log_backtrace < 2) {
		4378	$_log_backtrace_last = $msg;
		4379	++$_log_backtrace;
		4380	my $perl_bt = Carp::longmess $msg;
		4381	async {
		4382	$Coro::current->{desc} = "abt $msg";
		4383
		4384	my @bt = fork_call {
		4385	@addr = map { sprintf "%x", $_ } @addr;
		4386	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4387	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4388	or die "addr2line: $!";
		4389
		4390	my @funcs;
		4391	my @res = <$fh>;
		4392	chomp for @res;
		4393	while (@res) {
		4394	my ($func, $line) = splice @res, 0, 2, ();
		4395	push @funcs, "[$func] $line";
		4396	}
		4397
		4398	@funcs
		4399	};
		4400
		4401	LOG llevInfo, "[ABT] $perl_bt\n";
		4402	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4403	LOG llevInfo, "[ABT] $_\n" for @bt;
		4404	--$_log_backtrace;
		4405	};
		4406	} else {
		4407	LOG llevInfo, "[ABT] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4409	}
2904	}	4410	}
2905		4411
2906	# load additional modules	4412	# load additional modules
2907	use cf::pod;	4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2908		4415
2909	END { cf::emergency_save }	4416	END { cf::emergency_save }
2910		4417
2911	1	4418	1
2912		4419

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