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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.216 by root, Thu Feb 15 14:30:21 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 Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.5 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
20	use BDB ();	58	use BDB ();
21	use Data::Dumper;	59	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	60	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	61	use YAML::XS ();
26	use Time::HiRes;	62	use IO::AIO ();
27	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
28		65
		66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	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
30		78
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		83
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	our @ORIG_INC;
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		85
40	our %COMMAND = ();	86	our %COMMAND = ();
41	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
42		88
43	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
47		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	98	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
50		101
51	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	103
53	our $AIO_POLL_WATCHER;	104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	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;
56	our $NOW;	144	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		145
59	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
60	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
61
62	our %CFG;
63
64	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;
66
67	our %PLAYER; # all users
68	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		149
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
79	binmode STDOUT;	166	binmode STDOUT;
80	binmode STDERR;	167	binmode STDERR;
81		168
82	# read virtual server time, if available	169	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
87	}	174	}
88		175
89	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	177
91	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		180
96	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
97		182
98	sub cf::map::normalise;	183	sub cf::map::normalise;
99		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
100	#############################################################################	189	#############################################################################
101		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
102	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
103		203
104	=over 4	204	=over 4
105		205
106	=item $cf::UPTIME	206	=item $cf::UPTIME
107		207
108	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.
109		224
110	=item $cf::RUNTIME	225	=item $cf::RUNTIME
111		226
112	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
113	every server tick.	228	every server tick.
114		229
115	=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
116		233
117	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		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
120	=item $cf::NOW	245	=item $cf::LOAD
121		246
122	The time of the last (current) server tick.	247	The raw value load value from the last tick.
123
124	=item $cf::TICK
125
126	The interval between server ticks, in seconds.
127		248
128	=item %cf::CFG	249	=item %cf::CFG
129		250
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	252	from wherever your confdir points to.
132		253
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		255
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
137	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
138	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
139		289
140	=back	290	=back
141		291
142	=cut	292	=cut
143		293
144	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
145	*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 {
146	my $msg = join "", @_;	301	my $msg = join "", @_;
147	utf8::encode $msg;
148		302
149	$msg .= "\n"	303	$msg .= "\n"
150	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
151		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
152	LOG llevError, $msg;	308	LOG llevWarn, $msg;
153	};	309	};
154	}	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	};
155		324
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		332
163	# 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
164	# within the Safe compartment.	334	# within the Safe compartment.
165	for my $pkg (qw(	335	for my $pkg (qw(
166	cf::global cf::attachable	336	cf::global cf::attachable
167	cf::object cf::object::player	337	cf::object cf::object::player
168	cf::client cf::player	338	cf::client cf::player
169	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
170	cf::map cf::party cf::region	341	cf::party cf::region
171	)) {	342	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	344	}
175		345
176	$Event::DIED = sub {	346	$EV::DIED = sub {
177	warn "error in event callback: @_";	347	warn "error in event callback: $@";
178	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
179		356
180	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
181		358
182	=over 4	359	=over 4
183		360
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	380	$d
204	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
205	}	382	}
206		383
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
208		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
209	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
210		437
211	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
212		439
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
221		441
222	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
223		443
224	=cut	444	=cut
225		445
226	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
228	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
229	}	511	}
230		512
231	=item cf::lock_wait $string	513	=item cf::lock_wait $string
232		514
233	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
234		516
235	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
236		518
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
240	returned.	522	returned.
241		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
242	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
243	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
244		529
245	=cut	530	=item $locked = cf::lock_active $string
246		531
247	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
248		537
249	sub lock_wait($) {	538	sub lock_wait($) {
250	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	540	}
258		541
259	sub lock_acquire($) {	542	sub lock_acquire($) {
260	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
261		545
262	# wait, to be sure we are not locked	546	sub lock_active($) {
263	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	548	}
272		549
273	sub freeze_mainloop {	550	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
275		552
276	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
277	$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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
278	};	623	}
279	$TICK_WATCHER->stop;	624	};
280	$guard	625
		626	sub get_slot($;$$) {
		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	$sig->wait;
281	}	639	}
282		640
283	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
284		642
285	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		648
291	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
292		650
293	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
294		652
295	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
298		657
299	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
302	fast or be very important.	661	fast or be very important.
…		…
304	=cut	663	=cut
305		664
306	sub sync_job(&) {	665	sub sync_job(&) {
307	my ($job) = @_;	666	my ($job) = @_;
308		667
309	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
310	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
312		673
313	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	675
315	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
316		677
317	my $busy = 1;	678	my $busy = 1;
318	my @res;	679	my @res;
319		680
320	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	683	@res = eval { $job->() };
322	warn $@ if $@;	684	error $@ if $@;
323	undef $busy;	685	undef $busy;
324	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
325		687
326	while ($busy) {	688	while ($busy) {
327	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
328	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
329		699
330	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
331	} else {	701	} else {
332	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
333		703
…		…
353	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
354		724
355	$coro	725	$coro
356	}	726	}
357		727
358	sub write_runtime {	728	=item fork_call { }, @args
359	my $runtime = cf::localdir . "/runtime";
360		729
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
362	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
363		734
364	my $value = $cf::RUNTIME + 90 + 10;	735	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		736
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	737	sub post_fork {
369	and return;	738	reset_signals;
		739	}
370		740
371	# always fsync - this file is important	741	sub fork_call(&@) {
372	aio_fsync $fh	742	my ($cb, @args) = @_;
373	and return;
374		743
375	close $fh	744	my @res = Coro::Util::fork_eval {
376	or return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
377		748
378	aio_rename "$runtime~", $runtime	749	wantarray ? @res : $res[-1]
379	and return;	750	}
380		751
		752	sub objinfo {
381	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
382	}	927	}
383		928
384	=back	929	=back
385		930
386	=cut	931	=cut
387		932
388	#############################################################################	933	#############################################################################
389		934
390	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
391		936
392	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
393	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")
394	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
395		940
396	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>
397	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
398	crossfire+).	943	Deliantra).
399		944
400	=over 4	945	=over 4
401		946
402	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
403		948
…		…
447	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
448		993
449	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
450	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
451		996
452	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
453	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.
454		999
455	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
456		1001
457	=over 4	1002	=over 4
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
567		1112
568	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		1117
573	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
575		1120
576	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
581		1126
582	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
583	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
584		1129
585	} elsif (ref $type) {	1130	} elsif (ref $type) {
586	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
587		1132
588	} else {	1133	} else {
589	shift @arg;	1134	shift @arg;
590	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
591	}	1136	}
592	}	1137	}
593	}	1138	}
594		1139
595	sub _object_attach {	1140	sub _object_attach {
…		…
605	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
606	}	1151	}
607		1152
608	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
609	} else {	1154	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
611	}	1156	}
612		1157
613	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
614	}	1159	}
615		1160
…		…
617	if (ref $_[0]) {	1162	if (ref $_[0]) {
618	_object_attach @_;	1163	_object_attach @_;
619	} else {	1164	} else {
620	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
621	}	1166	}
		1167	_recalc_want;
622	};	1168	};
623		1169
624	# all those should be optimised	1170	# all those should be optimised
625	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
630	reattach ($obj);	1176	reattach ($obj);
631	} else {	1177	} else {
632	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
633	}	1179	}
		1180	_recalc_want;
634	};	1181	};
635		1182
636	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
638		1185
…		…
653	";	1200	";
654	die if $@;	1201	die if $@;
655	}	1202	}
656		1203
657	our $override;	1204	our $override;
658	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?
659		1206
660	sub override {	1207	sub override {
661	$override = 1;	1208	$override = 1;
662	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
663	}	1210	}
664		1211
665	sub do_invoke {	1212	sub do_invoke {
666	my $event = shift;	1213	my $event = shift;
667	my $callbacks = shift;	1214	my $callbacks = shift;
668		1215
669	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
670		1217
671	local $override;	1218	local $override;
672		1219
673	for (@$callbacks) {	1220	for (@$callbacks) {
674	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
675		1222
676	if ($@) {	1223	if ($@) {
677	warn "$@";
678	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
679	override;	1225	override;
680	}	1226	}
681		1227
682	return 1 if $override;	1228	return 1 if $override;
683	}	1229	}
684		1230
685	0	1231	0
686	}	1232	}
687		1233
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		1235
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1237
692	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
693		1239
694	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
695	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
696	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1243
698	=back	1244	=back
699		1245
700	=cut	1246	=cut
701		1247
702	#############################################################################	1248	#############################################################################
703	# 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, $ob2
		1291	}
704		1292
705	sub reattach {	1293	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1295	my ($obj) = @_;
708		1296
		1297	# no longer needed after getting rid of delete_package?
709	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
710		1299
711	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
712		1301
713	@$registry = ();	1302	@$registry = ();
714		1303
…		…
719	for (@$attach) {	1308	for (@$attach) {
720	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
721	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
722	}	1311	}
723	} else {	1312	} else {
724	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
725	}	1314	}
726	}	1315	}
727	}	1316	}
728		1317
729	cf::attachable->attach (	1318	cf::attachable->attach (
730	prio => -1000000,	1319	prio => -1000000,
731	on_instantiate => sub {	1320	on_instantiate => sub {
732	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
733		1322
734	$data = from_json $data;	1323	$data = decode_json $data;
735		1324
736	for (@$data) {	1325	for (@$data) {
737	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
738		1327
739	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1344	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
757		1346
758	sync_job {	1347	sync_job {
759	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
762		1353
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	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	}
767	close $fh;	1361	aio_close $fh;
768		1362
769	if (@$objs) {	1363	if (@$objs) {
770	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) {
771	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
774	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	}
775	close $fh;	1372	aio_close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
777	}	1374	}
778	} else {	1375	} else {
779	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
780	}	1377	}
781		1378
782	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
783	} else {	1383	} else {
784	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
785	}	1385	}
786	} else {	1386	} else {
787	aio_unlink $filename;	1387	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
789	}	1389	}
790	}	1390	};
791	}	1391	}
792		1392
793	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
794	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
795		1395
…		…
807	or return;	1407	or return;
808		1408
809	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
811	or return;	1411	or return;
		1412
812	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
813	}	1415	}
814		1416
		1417	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
817	return ($data, $av);	1422	($data, $av)
818	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
819		1430
820	#############################################################################	1431	#############################################################################
821	# command handling &c	1432	# command handling &c
822		1433
823	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
824		1435
825	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
826	$name.	1437	$name.
827		1438
828	=cut	1439	=cut
…		…
834	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
835		1446
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1448	}
838		1449
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
840		1451
841	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.
842		1457
843	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
844	called.
845		1459
846	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
847		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$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
848	sub register_extcmd {	1482	sub register_extcmd($$) {
849	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
850		1484
851	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
852	}	1486	}
853		1487
		1488	sub register_async_extcmd($$) {
		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} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
854	cf::player->attach (	1508	cf::player->attach (
855	on_command => sub {	1509	on_unknown_command => sub {
856	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
857		1511
858	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
859	or return;	1513	or return;
860		1514
…		…
865	cf::override;	1519	cf::override;
866	},	1520	},
867	on_extcmd => sub {	1521	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
869		1523
870	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1525
872	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
875	$pl->ext_reply ($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);
876	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
877	}	1547	}
		1548
878	} else {	1549	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1551	}
881		1552
882	cf::override;	1553	cf::override;
883	},	1554	},
884	);	1555	);
885		1556
		1557	# "readahead" all extensions
886	sub load_extension {	1558	sub cache_extensions {
887	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
888		1560
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1564	}
914	die $@;
915	}	1565	};
916		1566
917	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;
918	}	1579	}
919		1580
920	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
921	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1590	next unless -r $path;
923	eval {	1591
924	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 $active;
		1663	}
925	1	1664	}
926	} or warn "$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	}
927	}	1677	};
928	}	1678	}
929		1679
930	#############################################################################	1680	#############################################################################
931		1681
		1682	=back
		1683
932	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
933		1685
934	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
935		1687
936	=cut	1688	=cut
937		1689
938	package cf::player;	1690	package cf::player;
939		1691
…		…
941		1693
942	=head3 cf::player	1694	=head3 cf::player
943		1695
944	=over 4	1696	=over 4
945		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
946	=item cf::player::find $login	1712	=item cf::player::find $login
947		1713
948	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
949		1715
950	=cut	1716	=cut
951		1717
952	sub playerdir($) {	1718	sub playerdir($) {
953	cf::localdir	1719	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1721	}
959		1722
960	sub path($) {	1723	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1725
963	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
964	}	1727	}
965		1728
966	sub find_active($) {	1729	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
971		1734
972	sub exists($) {	1735	sub exists($) {
973	my ($login) = @_;	1736	my ($login) = @_;
974		1737
975	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1739	or !aio_stat path $login
977	}	1740	}
978		1741
979	sub find($) {	1742	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1744	my $login = $_[0];
982		1745
983	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
984		1747
985	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
987	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;
988	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
989	}	1765	}
990	}	1766	}
991	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($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	);
992		1781
993	sub save($) {	1782	sub save($) {
994	my ($pl) = @_;	1783	my ($pl) = @_;
995		1784
996	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1001	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1002		1791
1003	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1005		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
1006	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1007	Coro::cede;	1801	cf::cede_to_tick;
1008	}	1802	}
1009		1803
1010	sub new($) {	1804	sub new($) {
1011	my ($login) = @_;	1805	my ($login) = @_;
1012		1806
…		…
1018	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1019		1813
1020	$self	1814	$self
1021	}	1815	}
1022		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
1023	=item $pl->quit_character	1827	=item $pl->quit_character
1024		1828
1025	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1027		1831
1028	=cut	1832	=cut
1029		1833
1030	sub quit_character {	1834	sub quit_character {
1031	my ($pl) = @_;	1835	my ($pl) = @_;
1032		1836
		1837	my $name = $pl->ob->name;
		1838
1033	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1034	$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
1035		1841
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1037	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1039	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1040		1850
1041	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
1046	IO::AIO::aio_rmtree $temp;	1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
1047	}	1877	}
1048		1878
1049	=item cf::player::list_logins	1879	=item cf::player::list_logins
1050		1880
1051	Returns am arrayref of all valid playernames in the system, can take a	1881	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1053		1883
1054	=cut	1884	=cut
1055		1885
1056	sub list_logins {	1886	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1888	or return [];
1059		1889
1060	my @logins;	1890	my @logins;
1061		1891
1062	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") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1066		1902
1067	utf8::decode $login;	1903	utf8::decode $login;
1068	push @logins, $login;	1904	push @logins, $login;
1069	}	1905	}
1070		1906
1071	\@logins	1907	\@logins
1072	}	1908	}
1073		1909
1074	=item $player->maps	1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
1075		1913
1076	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1077	player. May block.	1915	player. May block.
1078		1916
1079	=cut	1917	=cut
…		…
1097	}	1935	}
1098		1936
1099	\@paths	1937	\@paths
1100	}	1938	}
1101		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1103		1945
1104	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1105		1947
1106	=cut	1948	=cut
1107		1949
1108	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1109	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1110		1952
1111	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1954	}
1115		1955
1116	package cf;	1956	=head3 cf::region
		1957
		1958	=over 4
		1959
		1960	=cut
		1961
		1962	package cf::region;
		1963
		1964	=item cf::region::find_by_path $path
		1965
		1966	Tries to decuce the likely region for a map knowing only its path.
		1967
		1968	=cut
		1969
		1970	sub find_by_path($) {
		1971	my ($path) = @_;
		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
		1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
		1985	}
1117		1986
1118	=back	1987	=back
1119
1120		1988
1121	=head3 cf::map	1989	=head3 cf::map
1122		1990
1123	=over 4	1991	=over 4
1124		1992
…		…
1136	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1137	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1138		2006
1139	sub generate_random_map {	2007	sub generate_random_map {
1140	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1141	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1142	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1146	$rmp->{exit_on_final_map},
1147	$rmp->{xsize}, $rmp->{ysize},
1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1153	(cf::region::find $rmp->{region}), $rmp->{custom}
1154	)
1155	}	2013	}
1156		2014
1157	=item cf::map->register ($regex, $prio)	2015	=item cf::map->register ($regex, $prio)
1158		2016
1159	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
…		…
1164		2022
1165	sub register {	2023	sub register {
1166	my (undef, $regex, $prio) = @_;	2024	my (undef, $regex, $prio) = @_;
1167	my $pkg = caller;	2025	my $pkg = caller;
1168		2026
1169	no strict;
1170	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1171		2028
1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1173	}	2030	}
1174		2031
1175	# also paths starting with '/'	2032	# also paths starting with '/'
1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1177		2034
1178	sub thawer_merge {	2035	sub thawer_merge {
1179	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1180		2037
1181	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1182	local $self->{path};	2039	local $self->{path};
1183	local $self->{load_path};	2040	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		2041
1187	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1188	}	2043	}
1189		2044
1190	sub normalise {	2045	sub normalise {
1191	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
1192		2047
1193	$path = "$path"; # make sure its a string	2048	$path = "$path"; # make sure it's a string
1194		2049
1195	$path =~ s/\.map$//;	2050	$path =~ s/\.map$//;
1196		2051
1197	# map plan:	2052	# map plan:
1198	#	2053	#
…		…
1213	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1214	$path = "$base/$path";	2069	$path = "$base/$path";
1215	}	2070	}
1216		2071
1217	for ($path) {	2072	for ($path) {
1218	redo if s{//}{/};
1219	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1220	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1221	}	2075	}
1222		2076
1223	$path	2077	$path
…		…
1237	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1238	return $self;	2092	return $self;
1239	}	2093	}
1240	}	2094	}
1241		2095
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1243	()	2097	()
1244	}	2098	}
1245		2099
		2100	# may re-bless or do other evil things
1246	sub init {	2101	sub init {
1247	my ($self) = @_;	2102	my ($self) = @_;
1248		2103
1249	$self	2104	$self
1250	}	2105	}
…		…
1262		2117
1263	# the original (read-only) location	2118	# the original (read-only) location
1264	sub load_path {	2119	sub load_path {
1265	my ($self) = @_;	2120	my ($self) = @_;
1266		2121
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1268	}	2123	}
1269		2124
1270	# the temporary/swap location	2125	# the temporary/swap location
1271	sub save_path {	2126	sub save_path {
1272	my ($self) = @_;	2127	my ($self) = @_;
1273		2128
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1276	}	2131	}
1277		2132
1278	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1279	sub uniq_path {	2134	sub uniq_path {
1280	my ($self) = @_;	2135	my ($self) = @_;
1281		2136
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1284	}	2139	}
1285		2140
1286	# and all this just because we cannot iterate over	2141	sub decay_objects {
1287	# all maps in C++...
1288	sub change_all_map_light {
1289	my ($change) = @_;	2142	my ($self) = @_;
1290		2143
1291	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1292	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1293	}	2147	}
1294		2148
1295	sub unlink_save {	2149	sub unlink_save {
1296	my ($self) = @_;	2150	my ($self) = @_;
1297		2151
…		…
1302		2156
1303	sub load_header_from($) {	2157	sub load_header_from($) {
1304	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1305		2159
1306	utf8::encode $path;	2160	utf8::encode $path;
1307	#aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1308	# or return;
1309
1310	$self->_load_header ($path)
1311	or return;	2162	or return;
1312		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1313	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1314		2171
1315	1	2172	1
1316	}	2173	}
1317		2174
		2175	# used to laod the header of an original map
1318	sub load_header_orig {	2176	sub load_header_orig {
1319	my ($self) = @_;	2177	my ($self) = @_;
1320		2178
1321	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1322	}	2180	}
1323		2181
		2182	# used to laod the header of an instantiated map
1324	sub load_header_temp {	2183	sub load_header_temp {
1325	my ($self) = @_;	2184	my ($self) = @_;
1326		2185
1327	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
1328	}	2187	}
1329		2188
		2189	# called after loading the header from an instantiated map
1330	sub prepare_temp {	2190	sub prepare_temp {
1331	my ($self) = @_;	2191	my ($self) = @_;
1332		2192
1333	$self->last_access ((delete $self->{last_access})	2193	$self->last_access ((delete $self->{last_access})
1334	|| $cf::RUNTIME); #d#	2194	|| $cf::RUNTIME); #d#
1335	# safety	2195	# safety
1336	$self->{instantiate_time} = $cf::RUNTIME	2196	$self->{instantiate_time} = $cf::RUNTIME
1337	if $self->{instantiate_time} > $cf::RUNTIME;	2197	if $self->{instantiate_time} > $cf::RUNTIME;
1338	}	2198	}
1339		2199
		2200	# called after loading the header from an original map
1340	sub prepare_orig {	2201	sub prepare_orig {
1341	my ($self) = @_;	2202	my ($self) = @_;
1342		2203
1343	$self->{load_original} = 1;	2204	$self->{load_original} = 1;
1344	$self->{instantiate_time} = $cf::RUNTIME;	2205	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1355	$self->load_header_orig	2216	$self->load_header_orig
1356	or return;	2217	or return;
1357	$self->prepare_orig;	2218	$self->prepare_orig;
1358	}	2219	}
1359		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
		2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
1360	1	2227	1
1361	}	2228	}
1362		2229
1363	sub find;	2230	sub find;
1364	sub find {	2231	sub find {
1365	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1366		2233
		2234	cf::cede_to_tick;
		2235
1367	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1368		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1369	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1370		2240
1371	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1372	my $guard = cf::lock_acquire "map_find:$path";
1373	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1374	or return;	2243	or return;
1375		2244
1376	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1377		2246
1378	$map->load_header	2247	$map->load_header
1379	or return;	2248	or return;
1380		2249
1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1382	# doing this can freeze the server in a sync job, obviously	2251	# doing this can freeze the server in a sync job, obviously
1383	#$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1384	$map->reset;	2255	$map->reset;
1385	undef $guard;
1386	return find $path;	2256	return find $path;
1387	}	2257	}
1388		2258
1389	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1390	}	2260	}
1391	}	2261	}
1392		2262
1393	sub pre_load { }	2263	sub pre_load { }
1394	sub post_load { }	2264	#sub post_load { } # XS
1395		2265
1396	sub load {	2266	sub load {
1397	my ($self) = @_;	2267	my ($self) = @_;
1398		2268
1399	local $self->{deny_reset} = 1; # loading can take a long time	2269	local $self->{deny_reset} = 1; # loading can take a long time
1400		2270
1401	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1402	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1403		2275
1404	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1405		2278
1406	$self->in_memory (cf::MAP_LOADING);
1407
1408	$self->alloc;	2279	$self->alloc;
1409		2280
1410	$self->pre_load;	2281	$self->pre_load;
		2282	cf::cede_to_tick;
1411		2283
1412	$self->_load_objects ($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)
1413	or return;	2288	or return;
1414		2289
1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1416	if delete $self->{load_original};	2291	if delete $self->{load_original};
1417		2292
1418	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1419	utf8::encode $uniq;	2294	utf8::encode $uniq;
1420	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1421	$self->clear_unique_items;	2297	$self->clear_unique_items;
1422	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1423	}	2302	}
1424	}
1425		2303
1426	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1427		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1428	# now do the right thing for maps	2313	# now do the right thing for maps
1429	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1430
1431	unless ($self->{deny_activate}) {
1432	$self->decay_objects;
1433	$self->fix_auto_apply;
1434	$self->update_buttons;
1435	Coro::cede;
1436	$self->set_darkness_map;
1437	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1438	unless $self->difficulty;	2316	unless $self->difficulty;
1439	Coro::cede;	2317	cf::cede_to_tick;
1440	$self->activate;	2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
1441	}	2329	}
1442		2330
1443	$self->post_load;	2331	$self->post_load;
1444		2332
1445	$self->in_memory (cf::MAP_IN_MEMORY);	2333	1
1446	}	2334	}
1447		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1448	sub customise_for {	2339	sub customise_for {
1449	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1450		2341
1451	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1452	if $self->per_player;	2343	if $self->per_player;
1453		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1454	$self	2348	$self
1455	}
1456
1457	# find and load all maps in the 3x3 area around a map
1458	sub load_diag {
1459	my ($map) = @_;
1460
1461	my @diag; # diagonal neighbours
1462
1463	for (0 .. 3) {
1464	my $neigh = $map->tile_path ($_)
1465	or next;
1466	$neigh = find $neigh, $map
1467	or next;
1468	$neigh->load;
1469
1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1472	}
1473
1474	for (@diag) {
1475	my $neigh = find @$_
1476	or next;
1477	$neigh->load;
1478	}
1479	}	2349	}
1480		2350
1481	sub find_sync {	2351	sub find_sync {
1482	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1483		2353
1484	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, $origin
1485	}	2359	}
1486		2360
1487	sub do_load_sync {	2361	sub do_load_sync {
1488	my ($map) = @_;	2362	my ($map) = @_;
1489		2363
1490	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;
1491	}	2369	}
1492		2370
1493	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1494	our $MAP_PREFETCHER = undef;	2372	our $MAP_PREFETCHER = undef;
1495		2373
1496	sub find_async {	2374	sub find_async {
1497	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1498		2376
1499	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1500		2378
1501	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
1503	}	2381	}
1504		2382
1505	undef $MAP_PREFETCH{$path};	2383	$MAP_PREFETCH{$path} |= $load;
		2384
1506	$MAP_PREFETCHER ||= cf::async {	2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
1507	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1508	for my $path (keys %MAP_PREFETCH) {	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1509	my $map = find $path	2390	if (my $map = find $k) {
1510	or next;
1511	$map->load;	2391	$map->load if $v;
		2392	}
1512		2393
1513	delete $MAP_PREFETCH{$path};	2394	delete $MAP_PREFETCH{$k};
1514	}	2395	}
1515	}	2396	}
1516	undef $MAP_PREFETCHER;	2397	undef $MAP_PREFETCHER;
1517	};	2398	};
1518	$MAP_PREFETCHER->prio (6);	2399	$MAP_PREFETCHER->prio (6);
1519		2400
1520	()	2401	()
1521	}	2402	}
1522		2403
		2404	# common code, used by both ->save and ->swapout
1523	sub save {	2405	sub _save {
1524	my ($self) = @_;	2406	my ($self) = @_;
1525
1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
1527		2407
1528	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1529		2409
1530	return unless $self->dirty;	2410	return unless $self->dirty;
1531		2411
…		…
1537	return if $self->{deny_save};	2417	return if $self->{deny_save};
1538		2418
1539	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1540		2420
1541	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1542	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1543	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1544		2427
1545	if ($uniq) {	2428	if ($uniq) {
1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1548	} else {	2431	} else {
1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1550	}	2433	}
1551	}	2434	}
1552		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1553	sub swap_out {	2444	sub swap_out {
1554	my ($self) = @_;	2445	my ($self) = @_;
1555		2446
1556	# save first because save cedes
1557	$self->save;
1558
1559	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1560		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1561	return if $self->players;	2451	return if $self->players;
1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1563	return if $self->{deny_save};
1564		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
1565	$self->clear;	2462	$self->clear;
1566	$self->in_memory (cf::MAP_SWAPPED);
1567	}	2463	}
1568		2464
1569	sub reset_at {	2465	sub reset_at {
1570	my ($self) = @_;	2466	my ($self) = @_;
1571		2467
1572	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1574	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1575		2470
1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1578		2473
…		…
1589	my ($self) = @_;	2484	my ($self) = @_;
1590		2485
1591	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1592		2487
1593	return if $self->players;	2488	return if $self->players;
1594	return if $self->isa ("ext::map_per_player");#d#
1595		2489
1596	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1597		2491
1598	$self->in_memory (cf::MAP_SWAPPED);	2492	$self->state (cf::MAP_SWAPPED);
1599		2493
1600	# need to save uniques path	2494	# need to save uniques path
1601	unless ($self->{deny_save}) {	2495	unless ($self->{deny_save}) {
1602	my $uniq = $self->uniq_path; utf8::encode $uniq;	2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1603		2497
…		…
1605	if $uniq;	2499	if $uniq;
1606	}	2500	}
1607		2501
1608	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1609		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1610	$self->clear;	2506	$self->clear;
1611
1612	$_->clear_links_to ($self) for values %cf::MAP;
1613		2507
1614	$self->unlink_save;	2508	$self->unlink_save;
1615	$self->destroy;	2509	$self->destroy;
1616	}	2510	}
1617		2511
1618	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1619		2513
1620	sub nuke {	2514	sub nuke {
1621	my ($self) = @_;	2515	my ($self) = @_;
1622		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1623	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1624		2521
1625	$self->unlink_save;	2522	$self->unlink_save;
1626		2523
1627	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1628	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1629	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1630	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1632		2529
1633	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1634		2532
1635	$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	]
1636	}	2570	}
1637		2571
1638	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1639		2573
1640	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1641	instantiated unique items. May block.	2575	instantiated unique items. May block.
1642		2576
1643	=cut	2577	=cut
1644		2578
1645	sub unique_maps() {	2579	sub unique_maps() {
1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1647	or return;	2581	map {
1648
1649	my @paths;
1650
1651	for (@$files) {
1652	utf8::decode $_;	2582	utf8::decode $_;
1653	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1654	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1655		2585	? ()
1656	push @paths, cf::map::normalise $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1657	}	2588	]
1658
1659	\@paths
1660	}	2589	}
1661		2590
1662	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	}
1663		2622
1664	=back	2623	=back
1665		2624
1666	=head3 cf::object	2625	=head3 cf::object
1667		2626
…		…
1671		2630
1672	=over 4	2631	=over 4
1673		2632
1674	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1675		2634
1676	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.
1677		2637
1678	=cut	2638	=cut
1679		2639
1680	sub inv_recursive_;	2640	sub inv_recursive_;
1681	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1684		2644
1685	sub inv_recursive {	2645	sub inv_recursive {
1686	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1687	}	2647	}
1688		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
1689	package cf;	2677	package cf;
1690		2678
1691	=back	2679	=back
1692		2680
1693	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1699	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>
1700	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
1701	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1702		2690
1703	=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	};
1704		2706
1705	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1706	# with dialog boxes.	2708	# with dialog boxes.
1707	#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
1708	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1710		2712
1711	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1712		2714
1713	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1714	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1715	} 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 {
1716	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1717	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1718	}	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 (@_);
1719	}	2740	}
1720		2741
1721	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1722		2743
1723	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1736		2757
1737	=item $player_object->enter_link	2758	=item $player_object->enter_link
1738		2759
1739	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}>).
1740		2761
1741	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.
1742	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.
1743		2766
1744	Will never block.	2767	Will never block.
1745		2768
1746	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1747		2770
…		…
1767	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1768	my ($self) = @_;	2791	my ($self) = @_;
1769		2792
1770	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1771		2794
		2795	++$self->{_link_recursion};
		2796
1772	return if UNIVERSAL::isa $self->map, "ext::map_link";	2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1773		2798
1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1775	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1776		2801
1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1778	}	2803	}
1779		2804
1780	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1781	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1782		2809
1783	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1784		2811
1785	unless ($map) {	2812	unless ($map) {
1786	# restore original map position	2813	# restore original map position
…		…
1797	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1798	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1799		2826
1800	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1801	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1802	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1803		2830
1804	$map->load;	2831	$map->load;
1805	$map->load_diag;
1806		2832
1807	return unless $self->contr->active;	2833	return unless $self->contr->active;
1808	$self->activate_recursive;
1809		2834
1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1811	$self->enter_map ($map, $x, $y);	2836	if ($self->enter_map ($map, $x, $y)) {
1812	}	2837	# entering was successful
1813		2838	delete $self->{_link_recursion};
1814	cf::player->attach (	2839	# only activate afterwards, to support waiting in hooks
1815	on_logout => sub {	2840	$self->activate_recursive;
1816	my ($pl) = @_;
1817
1818	# abort map switching before logout
1819	if ($pl->ob->{_link_pos}) {
1820	cf::sync_job {
1821	$pl->ob->leave_link
1822	};
1823	}
1824	},	2841	}
1825	on_login => sub {
1826	my ($pl) = @_;
1827		2842
1828	# try to abort aborted map switching on player login :)	2843	}
1829	# should happen only on crashes
1830	if ($pl->ob->{_link_pos}) {
1831	$pl->ob->enter_link;
1832	(async {
1833	$pl->ob->reply (undef,
1834	"There was an internal problem at your last logout, "
1835	. "the server will try to bring you to your intended destination in a second.",
1836	cf::NDI_RED);
1837	# we need this sleep as the login has a concurrent enter_exit running
1838	# and this sleep increases chances of the player not ending up in scorn
1839	Coro::Timer::sleep 1;
1840	$pl->ob->leave_link;
1841	})->prio (2);
1842	}
1843	},
1844	);
1845		2844
1846	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1847		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
1848	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1849		2859
1850	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1851	my ($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;
1852		2871
1853	$self->enter_link;	2872	$self->enter_link;
1854		2873
1855	(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
1856	my $map = eval {	2896	my $map = eval {
1857	my $map = cf::map::find $path;	2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
1858	$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
1859	$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 $@;
1860	} or	2912	}
1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1862		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1863	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1864	})->prio (1);	2920	})->prio (1);
1865	}	2921	}
1866		2922
1867	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1868		2924
…		…
1888	}	2944	}
1889		2945
1890	sub prepare_random_map {	2946	sub prepare_random_map {
1891	my ($exit) = @_;	2947	my ($exit) = @_;
1892		2948
1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1894
1895	# all this does is basically replace the /! path by	2949	# all this does is basically replace the /! path by
1896	# a new random map path (?random/...) with a seed	2950	# a new random map path (?random/...) with a seed
1897	# that depends on the exit object	2951	# that depends on the exit object
1898		2952
1899	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
…		…
1901	if ($exit->map) {	2955	if ($exit->map) {
1902	$rmp->{region} = $exit->region->name;	2956	$rmp->{region} = $exit->region->name;
1903	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1904	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1905	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1906	}	2962	}
1907		2963
1908	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1909		2965
1910	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1911	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2968	my $meta = "$RANDOMDIR/$md5.meta";
1913		2969
1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1915	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
1916	undef $fh;	2972	undef $fh;
1917	aio_rename "$meta~", $meta;	2973	aio_rename "$meta~", $meta;
1918		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1919	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
1920	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
1921	}	2981	}
1922	}	2982	}
1923		2983
1924	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
1925	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
1926		2986
1927	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
1928		2988
1929	if ($exit->slaying eq "/!") {
1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
1931	cf::sync_job { prepare_random_map $exit };
1932	}
1933
1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935	my $hp = $exit->stats->hp;
1936	my $sp = $exit->stats->sp;
1937
1938	$self->enter_link;	2989	$self->enter_link;
1939		2990
1940	(async {	2991	(async {
1941	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
1942	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
1943	$self->goto ($slaying, $hp, $sp);	3024	$self->goto ($map, $x, $y);
1944		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
1945	1;	3030	1
1946	}) {	3031	}) {
1947	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
1948	. "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. "
1949	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
1950	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
1951		3036
1952	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
1953	$self->leave_link;	3038	$self->leave_link;
1954	}	3039	}
1955	})->prio (1);	3040	})->prio (1);
1956	}	3041	}
1957		3042
1958	=head3 cf::client	3043	=head3 cf::client
1959		3044
1960	=over 4	3045	=over 4
1961		3046
1962	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1963		3048
1964	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1965	should not be used under normal circumstances.	3050	them as required.
1966		3051
1967	=cut	3052	=cut
1968		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" => $CHAT_CHANNEL,
		3199	);
		3200
1969	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($self, $channel, $msg, $color, @extra) = @_;
		3203
		3204	$msg = $self->pl->expand_cfpod ($msg)
		3205	unless $color & cf::NDI_VERBATIM;
		3206
		3207	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3208
		3209	# check predefined channels, for the benefit of C
		3210	if ($CHANNEL{$channel}) {
		3211	$channel = $CHANNEL{$channel};
		3212
		3213	$self->ext_msg (channel_info => $channel);
		3214	$channel = $channel->{id};
		3215
		3216	} elsif (ref $channel) {
		3217	# send meta info to client, if not yet sent
		3218	unless (exists $self->{channel}{$channel->{id}}) {
		3219	$self->{channel}{$channel->{id}} = $channel;
		3220	$self->ext_msg (channel_info => $channel);
		3221	}
		3222
		3223	$channel = $channel->{id};
		3224	}
		3225
		3226	return unless @extra || length $msg;
		3227
		3228	# default colour, mask it out
		3229	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3230	if $color & cf::NDI_DEF;
		3231
		3232	my $pkt = "msg "
		3233	. $self->{json_coder}->encode (
		3234	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3235	);
		3236
		3237	$self->send_big_packet ($pkt);
		3238	}
		3239
		3240	=item $client->ext_msg ($type, @msg)
		3241
		3242	Sends an ext event to the client.
		3243
		3244	=cut
		3245
		3246	sub cf::client::ext_msg($$@) {
1970	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1971		3248
1972	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1973	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1974	}	3250	}
1975
1976		3251
1977	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1978		3253
1979	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1980	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>,
1981	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>.
1982		3257
1983	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
1984	reliable at some point in the future.	3259	become reliable at some point in the future.
1985		3260
1986	=cut	3261	=cut
1987		3262
1988	sub cf::client::query {	3263	sub cf::client::query {
1989	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1997	utf8::encode $text;	3272	utf8::encode $text;
1998	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1999		3274
2000	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
2001	if @{ $self->{query_queue} } == 1;	3276	if @{ $self->{query_queue} } == 1;
		3277
		3278	1
2002	}	3279	}
2003		3280
2004	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	},
2005	on_reply => sub {	3287	on_reply => sub {
2006	my ($ns, $msg) = @_;	3288	my ($ns, $msg) = @_;
2007		3289
2008	# this weird shuffling is so that direct followup queries	3290	# this weird shuffling is so that direct followup queries
2009	# get handled first	3291	# get handled first
…		…
2021	} else {	3303	} else {
2022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3304	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2023	}	3305	}
2024	}	3306	}
2025	},	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	},
2026	);	3341	);
2027		3342
2028	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2029		3344
2030	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2046		3361
2047	$coro	3362	$coro
2048	}	3363	}
2049		3364
2050	cf::client->attach (	3365	cf::client->attach (
2051	on_destroy => sub {	3366	on_client_destroy => sub {
2052	my ($ns) = @_;	3367	my ($ns) = @_;
2053		3368
2054	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2055	},	3370	},
2056	);	3371	);
…		…
2071	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2072	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2073		3388
2074	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2075		3390
2076	$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	));
2077		3396
2078	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2079		3398
2080	=pod	3399	=pod
2081		3400
2082	The following fucntions and emthods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2083		3402
2084	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
2085	cf::object::player player	3408	cf::object::player
2086	cf::player peaceful	3409	player
2087	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2088		3416
2089	=cut	3417	=cut
2090		3418
2091	for (	3419	for (
2092	["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)],
2093	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2094	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2095	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2096	) {	3426	) {
2097	no strict 'refs';
2098	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2099	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2100	for @funs;	3429	for @funs;
2101	}	3430	}
2102		3431
…		…
2117		3446
2118	my $qcode = $code;	3447	my $qcode = $code;
2119	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2120	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2121		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2122	local $_;	3454	local $_;
2123	local @safe::cf::_safe_eval_args = values %vars;
2124		3455
2125	my $eval =	3456	my $eval =
2126	"do {\n"	3457	"do {\n"
2127	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2128	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2129	. $code	3460	. $code
2130	. "\n}"	3461	. "\n}"
2131	;	3462	;
2132		3463
		3464	if ($CFG{safe_eval}) {
2133	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2134	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2135	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	}
2136		3473
2137	if ($@) {	3474	if ($@) {
2138	warn "$@";	3475	warn "$@",
2139	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2140	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2141	}	3478	}
2142		3479
2143	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2144	}	3481	}
2145		3482
…		…
2159	=cut	3496	=cut
2160		3497
2161	sub register_script_function {	3498	sub register_script_function {
2162	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2163		3500
2164	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2165	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2166	}	3503	}
2167		3504
2168	=back	3505	=back
2169		3506
2170	=cut	3507	=cut
2171
2172	#############################################################################
2173
2174	=head2 EXTENSION DATABASE SUPPORT
2175
2176	Crossfire maintains a very simple database for extension use. It can
2177	currently store anything that can be serialised using Storable, which
2178	excludes objects.
2179
2180	The parameter C<$family> should best start with the name of the extension
2181	using it, it should be unique.
2182
2183	=over 4
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database.
2188
2189	=item cf::db_put $family => $key => $value
2190
2191	Stores the given C<$value> in the family.
2192
2193	=cut
2194
2195	our $DB;
2196
2197	sub db_init {
2198	unless ($DB) {
2199	$DB = BDB::db_create $DB_ENV;
2200
2201	cf::sync_job {
2202	eval {
2203	$DB->set_flags (BDB::CHKSUM);
2204
2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207	cf::cleanup "db_open(db): $!" if $!;
2208	};
2209	cf::cleanup "db_open(db): $@" if $@;
2210	};
2211
2212	my $path = cf::localdir . "/database.pst";
2213	if (stat $path) {
2214	cf::sync_job {
2215	my $pst = Storable::retrieve $path;
2216
2217	cf::db_put (board => data => $pst->{board});
2218	cf::db_put (guildrules => data => $pst->{guildrules});
2219	cf::db_put (rent => balance => $pst->{rent}{balance});
2220	BDB::db_env_txn_checkpoint $DB_ENV;
2221
2222	unlink $path;
2223	};
2224	}
2225	}
2226	}
2227
2228	sub db_get($$) {
2229	my $key = "$_[0]/$_[1]";
2230
2231	cf::sync_job {
2232	BDB::db_get $DB, undef, $key, my $data;
2233
2234	$! ? ()
2235	: Compress::LZF::sthaw $data
2236	}
2237	}
2238
2239	sub db_put($$$) {
2240	BDB::dbreq_pri 4;
2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2242	}
2243		3508
2244	#############################################################################	3509	#############################################################################
2245	# the server's init and main functions	3510	# the server's init and main functions
2246		3511
		3512	{
		3513	package cf::face;
		3514
		3515	our %HASH; # hash => idx
		3516	our @DATA; # dynamically-created facedata, only faceste 0 used
		3517	our @FOFS; # file offset, if > 0
		3518	our @SIZE; # size of face, in octets
		3519	our @META; # meta hash of face, if any
		3520	our $DATAFH; # facedata filehandle
		3521
		3522	# internal api, not finalised
		3523	sub set {
		3524	my ($name, $type, $data) = @_;
		3525
		3526	my $idx = cf::face::find $name;
		3527
		3528	if ($idx) {
		3529	delete $HASH{cf::face::get_csum $idx};
		3530	} else {
		3531	$idx = cf::face::alloc $name;
		3532	}
		3533
		3534	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3535
		3536	cf::face::set_type $idx, $type;
		3537	cf::face::set_csum $idx, 0, $hash;
		3538
		3539	# we need to destroy the SV itself, not just modify it, as a running ix
		3540	# might hold a reference to it: "delete" achieves that.
		3541	delete $FOFS[0][$idx];
		3542	delete $DATA[0][$idx];
		3543	$DATA[0][$idx] = $data;
		3544	$SIZE[0][$idx] = length $data;
		3545	delete $META[$idx];
		3546	$HASH{$hash} = $idx;#d#
		3547
		3548	$idx
		3549	}
		3550
		3551	sub _get_data($$$) {
		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, $_[0]);
		3585	};
		3586	}
		3587	}
		3588
		3589	sub load_facedata($) {
		3590	my ($path) = @_;
		3591
		3592	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3593
		3594	trace "loading facedata from $path\n";
		3595
		3596	my $facedata = decode_storable load_file "$path/faceinfo";
		3597
		3598	$facedata->{version} == 2
		3599	or cf::cleanup "$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;
		3609
		3610	{
		3611	my $faces = $facedata->{faceinfo};
		3612
		3613	for my $face (sort keys %$faces) {
		3614	my $info = $faces->{$face};
		3615	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3616
		3617	cf::face::set_visibility $idx, $info->{visibility};
		3618	cf::face::set_magicmap $idx, $info->{magicmap};
		3619	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		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];
		3624	}
		3625
		3626	while (my ($face, $info) = each %$faces) {
		3627	next unless $info->{smooth};
		3628
		3629	my $idx = cf::face::find $face
		3630	or next;
		3631
		3632	if (my $smooth = cf::face::find $info->{smooth}) {
		3633	cf::face::set_smooth $idx, $smooth;
		3634	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3635	} else {
		3636	error "smooth face '$info->{smooth}' not found for face '$face'";
		3637	}
		3638	}
		3639	}
		3640
		3641	{
		3642	my $anims = $facedata->{animinfo};
		3643
		3644	while (my ($anim, $info) = each %$anims) {
		3645	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3646	}
		3647
		3648	cf::anim::invalidate_all; # d'oh
		3649	}
		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 $fh; # close old facedata
		3684
		3685	1
		3686	}
		3687
		3688	register_exticmd fx_want => sub {
		3689	my ($ns, $want) = @_;
		3690
		3691	while (my ($k, $v) = each %$want) {
		3692	$ns->fx_want ($k, $v);
		3693	}
		3694	};
		3695
2247	sub load_resources {	3696	sub load_resource_file($) {
2248	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	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"
2249	or die "unable to load regions file\n";#d#	3726	or die "unable to load regions file\n";
2250	}
2251		3727
2252	sub cfg_load {	3728	for (cf::region::list) {
2253	open my $fh, "<:utf8", cf::confdir . "/config"	3729	$_->{match} = qr/$_->{match}/
2254	or return;	3730	if exists $_->{match};
		3731	}
		3732	}
2255		3733
2256	local $/;	3734	sub reload_facedata {
2257	*CFG = YAML::Syck::Load <$fh>;	3735	load_facedata $DATADIR
		3736	or die "unable to load facedata\n";
		3737	}
2258		3738
		3739	sub reload_archetypes {
		3740	load_resource_file "$DATADIR/archetypes"
		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	);
		3754	}
		3755
		3756	sub reload_treasures {
		3757	load_resource_file "$DATADIR/treasures"
		3758	or die "unable to load treasurelists\n";
		3759	}
		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
		3781	sub reload_resources {
		3782	trace "reloading resource files...\n";
		3783
		3784	reload_materials;
		3785	reload_facedata;
		3786	reload_exp_table;
		3787	reload_sound;
		3788	reload_archetypes;
		3789	reload_regions;
		3790	reload_treasures;
		3791
		3792	trace "finished reloading resource files\n";
		3793	}
		3794
		3795	sub reload_config {
		3796	trace "reloading config file...\n";
		3797
		3798	my $config = load_file "$CONFDIR/config";
		3799	utf8::decode $config;
		3800	*CFG = decode_yaml $config;
		3801
2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2260		3803
2261	$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};
2262	$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};
2263		3806
2264	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
…		…
2268	};	3811	};
2269	warn $@ if $@;	3812	warn $@ if $@;
2270	}	3813	}
2271	}	3814	}
2272		3815
2273	sub init {	3816	sub pidfile() {
2274	load_resources;	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;
2275	}	3842	}
2276		3843
2277	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
2278	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2279	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2280	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#
2281	(async {	3857	(async {
2282	Event::one_event;	3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3859	EV::loop EV::LOOP_ONESHOT;
2283	})->prio (Coro::PRIO_MAX);	3860	})->prio (Coro::PRIO_MAX);
2284	};	3861	};
2285		3862
2286	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
		3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
2287	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
2288	load_extensions;	3887	load_extensions;
2289		3888
2290	$TICK_WATCHER->start;	3889	utime time, time, $RUNTIMEFILE;
2291	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;
2292	}	3906	}
2293		3907
2294	#############################################################################	3908	#############################################################################
2295	# initialisation and cleanup	3909	# initialisation and cleanup
2296		3910
2297	# install some emergency cleanup handlers	3911	# install some emergency cleanup handlers
2298	BEGIN {	3912	BEGIN {
		3913	our %SIGWATCHER = ();
2299	for my $signal (qw(INT HUP TERM)) {	3914	for my $signal (qw(INT HUP TERM)) {
2300	Event->signal (	3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2301	reentrant => 0,
2302	data => WF_AUTOCANCEL,
2303	signal => $signal,
2304	prio => 0,
2305	cb => sub {
2306	cf::cleanup "SIG$signal";	3916	cf::cleanup "SIG$signal";
2307	},
2308	);	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
2309	}	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 };
2310	}	4007	}
2311		4008
2312	sub emergency_save() {	4009	sub emergency_save() {
2313	my $freeze_guard = cf::freeze_mainloop;	4010	my $freeze_guard = cf::freeze_mainloop;
2314		4011
2315	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;
2316		4018
2317	cf::sync_job {	4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
2318	# use a peculiar iteration method to avoid tripping on perl	4022	# use a peculiar iteration method to avoid tripping on perl
2319	# refcount bugs in for. also avoids problems with players	4023	# refcount bugs in for. also avoids problems with players
2320	# and maps saved/destroyed asynchronously.	4024	# and maps saved/destroyed asynchronously.
2321	warn "begin emergency player save\n";	4025	info "emergency_perl_save: begin player save\n";
2322	for my $login (keys %cf::PLAYER) {	4026	for my $login (keys %cf::PLAYER) {
2323	my $pl = $cf::PLAYER{$login} or next;	4027	my $pl = $cf::PLAYER{$login} or next;
2324	$pl->valid or next;	4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2325	$pl->save;	4030	$pl->save;
2326	}	4031	}
2327	warn "end emergency player save\n";	4032	info "emergency_perl_save: end player save\n";
2328		4033
2329	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";
2330	for my $path (keys %cf::MAP) {	4037	for my $path (keys %cf::MAP) {
2331	my $map = $cf::MAP{$path} or next;	4038	my $map = $cf::MAP{$path} or next;
2332	$map->valid or next;	4039	$map->valid or next;
2333	$map->save;	4040	$map->save;
2334	}	4041	}
2335	warn "end emergency map save\n";	4042	info "emergency_perl_save: end map save\n";
2336		4043
2337	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";
2338	BDB::db_env_txn_checkpoint $DB_ENV;	4047	BDB::db_env_txn_checkpoint $DB_ENV;
2339	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 $DB_ENV;
		4058
		4059	info "emergency_perl_save: starting sync\n";
		4060	IO::AIO::aio_sync sub {
		4061	info "emergency_perl_save: finished sync\n";
		4062	};
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	trace "emergency_perl_save: flushing outstanding aio requests";
		4067	while (IO::AIO::nreqs || BDB::nreqs) {
		4068	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4069	}
		4070
		4071	cf::write_runtime_sync; # external watchdog should not bark
2340	};	4072	};
2341		4073
2342	warn "leave emergency perl save\n";	4074	info "emergency_perl_save: leave\n";
2343	}	4075	}
2344		4076
2345	sub post_cleanup {	4077	sub post_cleanup {
2346	my ($make_core) = @_;	4078	my ($make_core) = @_;
2347		4079
		4080	IO::AIO::flush;
		4081
2348	warn Carp::longmess "post_cleanup backtrace"	4082	error Carp::longmess "post_cleanup backtrace"
2349	if $make_core;	4083	if $make_core;
2350	}
2351		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	}
		4112	}
		4113
2352	sub reload() {	4114	sub do_reload_perl() {
2353	# can/must only be called in main	4115	# can/must only be called in main
2354	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2355	warn "can only reload from main coroutine";	4117	error "can only reload from main coroutine";
2356	return;	4118	return;
2357	}	4119	}
2358		4120
2359	warn "reloading...";	4121	return if $RELOAD++;
2360		4122
2361	warn "entering sync_job";	4123	my $t1 = AE::time;
2362		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
2363	cf::sync_job {	4131	cf::sync_job {
2364	cf::write_runtime; # external watchdog should not bark
2365	cf::emergency_save;	4132	#cf::emergency_save;
2366	cf::write_runtime; # external watchdog should not bark
2367		4133
2368	warn "syncing database to disk";
2369	BDB::db_env_txn_checkpoint $DB_ENV;
2370
2371	# if anything goes wrong in here, we should simply crash as we already saved
2372
2373	warn "cancelling all WF_AUTOCANCEL watchers";
2374	for (Event::all_watchers) {
2375	$_->cancel if $_->data & WF_AUTOCANCEL;
2376	}
2377
2378	warn "flushing outstanding aio requests";
2379	for (;;) {
2380	BDB::flush;
2381	IO::AIO::flush;
2382	Coro::cede;
2383	last unless IO::AIO::nreqs || BDB::nreqs;
2384	warn "iterate...";
2385	}
2386
2387	warn "cancelling all extension coros";	4134	trace "perl_reload: cancelling all extension coros";
2388	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2389	%EXT_CORO = ();	4136	%EXT_CORO = ();
2390		4137
2391	warn "removing commands";	4138	trace "perl_reload: removing commands";
2392	%COMMAND = ();	4139	%COMMAND = ();
2393		4140
2394	warn "removing ext commands";	4141	trace "perl_reload: removing ext/exti commands";
2395	%EXTCMD = ();	4142	%EXTCMD = ();
		4143	%EXTICMD = ();
2396		4144
2397	warn "unloading/nuking all extensions";	4145	trace "perl_reload: unloading/nuking all extensions";
2398	for my $pkg (@EXTS) {	4146	for my $pkg (@EXTS) {
2399	warn "... unloading $pkg";	4147	trace "... unloading $pkg";
2400		4148
2401	if (my $cb = $pkg->can ("unload")) {	4149	if (my $cb = $pkg->can ("unload")) {
2402	eval {	4150	eval {
2403	$cb->($pkg);	4151	$cb->($pkg);
2404	1	4152	1
2405	} 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;
2406	}	4158	}
2407		4159
2408	warn "... nuking $pkg";
2409	Symbol::delete_package $pkg;
2410	}
2411
2412	warn "unloading all perl modules loaded from $LIBDIR";	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2413	while (my ($k, $v) = each %INC) {	4161	while (my ($k, $v) = each %INC) {
2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2415		4163
2416	warn "... unloading $k";	4164	trace "... unloading $k";
2417	delete $INC{$k};	4165	delete $INC{$k};
2418		4166
2419	$k =~ s/\.pm$//;	4167	$k =~ s/\.pm$//;
2420	$k =~ s/\//::/g;	4168	$k =~ s/\//::/g;
2421		4169
2422	if (my $cb = $k->can ("unload_module")) {	4170	if (my $cb = $k->can ("unload_module")) {
2423	$cb->();	4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2424	}	4175	}
2425		4176
2426	Symbol::delete_package $k;
2427	}
2428
2429	warn "getting rid of safe::, as good as possible";	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2430	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2431	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);
2432		4180
2433	warn "unloading cf.pm \"a bit\"";	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2434	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
		4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2435		4184
2436	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2437	# and global variables created in xs	4186	# and global variables created in xs
2438	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2439		4188
2440	warn "unload completed, starting to reload now";	4189	info "perl_reload: unload completed, starting to reload now";
2441		4190
2442	warn "reloading cf.pm";	4191	trace "perl_reload: reloading cf.pm";
2443	require cf;	4192	require cf;
2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2445		4194
2446	warn "loading config and database again";	4195	trace "perl_reload: loading config and database again";
2447	cf::cfg_load;	4196	cf::reload_config;
2448		4197
2449	warn "loading extensions";	4198	trace "perl_reload: loading extensions";
2450	cf::load_extensions;	4199	cf::load_extensions;
2451		4200
		4201	if ($REATTACH_ON_RELOAD) {
2452	warn "reattaching attachments to objects/players";	4202	trace "perl_reload: reattaching attachments to objects/players";
2453	_global_reattach;	4203	_global_reattach; # objects, sockets
2454	warn "reattaching attachments to maps";	4204	trace "perl_reload: reattaching attachments to maps";
2455	reattach $_ for values %MAP;	4205	reattach $_ for values %MAP;
		4206	trace "perl_reload: reattaching attachments to players";
		4207	reattach $_ for values %PLAYER;
		4208	}
2456		4209
2457	warn "loading reloadable resources";	4210	cf::_post_init 1;
2458	load_resources;
2459		4211
2460	warn "leaving sync_job";	4212	trace "perl_reload: leaving sync_job";
2461		4213
2462	1	4214	1
2463	} or do {	4215	} or do {
2464	warn $@;	4216	error $@;
2465	warn "error while reloading, exiting.";	4217	cf::cleanup "perl_reload: error, exiting.";
2466	exit 1;	4218	};
		4219
		4220	--$RELOAD;
		4221	}
		4222
		4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
		4225	};
		4226
		4227	our $RELOAD_WATCHER; # used only during reload
		4228
		4229	sub reload_perl() {
		4230	# doing reload synchronously and two reloads happen back-to-back,
		4231	# coro crashes during coro_state_free->destroy here.
		4232
		4233	$RELOAD_WATCHER ||= cf::async {
		4234	Coro::AIO::aio_wait cache_extensions;
		4235
		4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4237	do_reload_perl;
		4238	undef $RELOAD_WATCHER;
		4239	};
2467	};	4240	};
2468		4241	}
2469	warn "reloaded";
2470	};
2471
2472	our $RELOAD_WATCHER; # used only during reload
2473		4242
2474	register_command "reload" => sub {	4243	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2476		4245
2477	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("reloading server.");	4247	$who->message ("reloading server.");
2479		4248	async {
2480	# doing reload synchronously and two reloads happen back-to-back,	4249	$Coro::current->{desc} = "perl_reload";
2481	# coro crashes during coro_state_free->destroy here.
2482
2483	$RELOAD_WATCHER ||= Event->timer (
2484	reentrant => 0,
2485	after => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => sub {
2488	reload;	4250	reload_perl;
2489	undef $RELOAD_WATCHER;
2490	},
2491	);	4251	};
2492	}	4252	}
2493	};	4253	};
2494		4254
2495	unshift @INC, $LIBDIR;	4255	#############################################################################
2496		4256
2497	my $bug_warning = 0;	4257	my $bug_warning = 0;
2498		4258
2499	$TICK_WATCHER = Event->timer (	4259	sub wait_for_tick() {
2500	reentrant => 0,	4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2501	parked => 1,	4261
2502	prio => 0,	4262	$WAIT_FOR_TICK->wait;
2503	at => $NEXT_TICK || $TICK,	4263	}
2504	data => WF_AUTOCANCEL,	4264
2505	cb => sub {	4265	sub wait_for_tick_begin() {
		4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4267
		4268	my $signal = new Coro::Signal;
		4269	push @WAIT_FOR_TICK_BEGIN, $signal;
		4270	$signal->wait;
		4271	}
		4272
		4273	sub tick {
2506	if ($Coro::current != $Coro::main) {	4274	if ($Coro::current != $Coro::main) {
2507	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"
2508	unless ++$bug_warning > 10;	4276	unless ++$bug_warning > 10;
2509	return;	4277	return;
2510	}	4278	}
2511		4279
2512	$NOW = Event::time;	4280	cf::one_tick; # one server iteration
2513		4281
2514	cf::server_tick; # one server iteration	4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2515	$RUNTIME += $TICK;
2516	$NEXT_TICK += $TICK;
2517		4283
2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519	$NEXT_RUNTIME_WRITE = $NOW + 10;	4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2520	Coro::async_pool {	4286	Coro::async_pool {
		4287	$Coro::current->{desc} = "runtime saver";
2521	write_runtime	4288	write_runtime_sync
2522	or warn "ERROR: unable to write runtime file: $!";	4289	or error "ERROR: unable to write runtime file: $!";
2523	};
2524	}	4290	};
		4291	}
2525		4292
2526		4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4294	$sig->send;
		4295	}
2527	$WAIT_FOR_TICK->broadcast;	4296	$WAIT_FOR_TICK->broadcast;
2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2529		4297
2530	# my $AFTER = Event::time;	4298	$LOAD = ($NOW - $TICK_START) / $TICK;
2531	# warn $AFTER - $NOW;#d#	4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2532		4300
2533	# if we are delayed by four ticks or more, skip them all	4301	if (0) {
2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4302	if ($NEXT_TICK) {
2535		4303	my $jitter = $TICK_START - $NEXT_TICK;
2536	$TICK_WATCHER->at ($NEXT_TICK);	4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2537	$TICK_WATCHER->start;	4305	debug "jitter $JITTER\n";#d#
		4306	}
2538	},	4307	}
2539	);	4308	}
2540		4309
2541	{	4310	{
2542	BDB::max_poll_time $TICK * 0.1;	4311	# configure BDB
2543	$BDB_POLL_WATCHER = Event->io (	4312	info "initialising database";
2544	reentrant => 0,	4313
2545	fd => BDB::poll_fileno,
2546	poll => 'r',
2547	prio => 0,
2548	data => WF_AUTOCANCEL,
2549	cb => \&BDB::poll_cb,
2550	);
2551	BDB::min_parallel 8;	4314	BDB::min_parallel 16;
2552		4315	BDB::max_poll_reqs $TICK * 0.1;
2553	BDB::set_sync_prepare {	4316	#$AnyEvent::BDB::WATCHER->priority (1);
2554	my $status;
2555	my $current = $Coro::current;
2556	(
2557	sub {
2558	$status = $!;
2559	$current->ready; undef $current;
2560	},
2561	sub {
2562	Coro::schedule while defined $current;
2563	$! = $status;
2564	},
2565	)
2566	};
2567		4317
2568	unless ($DB_ENV) {	4318	unless ($DB_ENV) {
2569	$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);
2570		4325
2571	cf::sync_job {	4326	cf::sync_job {
2572	eval {	4327	eval {
2573	BDB::db_env_open	4328	BDB::db_env_open
2574	$DB_ENV,	4329	$DB_ENV,
2575	$BDB_ENV_DIR,	4330	$BDBDIR,
2576	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
2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2578	0666;	4333	0666;
2579		4334
2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2581
2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2583	$DB_ENV->set_lk_detect;
2584	};	4336	};
2585		4337
2586	cf::cleanup "db_env_open(db): $@" if $@;	4338	cf::cleanup "db_env_open(db): $@" if $@;
2587	};	4339	};
2588	}	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";
2589	}	4353	}
2590		4354
2591	{	4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
2592	IO::AIO::min_parallel 8;	4359	IO::AIO::min_parallel 8;
2593
2594	undef $Coro::AIO::WATCHER;
2595	IO::AIO::max_poll_time $TICK * 0.1;	4360	IO::AIO::max_poll_time $TICK * 0.1;
2596	$AIO_POLL_WATCHER = Event->io (	4361	undef $AnyEvent::AIO::WATCHER;
2597	reentrant => 0,	4362	info "aio initialised";
2598	data => WF_AUTOCANCEL,
2599	fd => IO::AIO::poll_fileno,
2600	poll => 'r',
2601	prio => 6,
2602	cb => \&IO::AIO::poll_cb,
2603	);
2604	}	4363	}
		4364
		4365	our $_log_backtrace;
		4366	our $_log_backtrace_last;
		4367
		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] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4409	}
		4410	}
		4411
		4412	# load additional modules
		4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2605		4415
2606	END { cf::emergency_save }	4416	END { cf::emergency_save }
2607		4417
2608	1	4418	1
2609		4419

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