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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.616 by root, Mon Aug 10 03:05:30 2015 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.5 ();	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
48	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
49	our @EVENT;	98	our @EVENT;
50	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
51		101
52	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
53	our $TICK_WATCHER;	103
54	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(!)
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	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;
57	our $NOW;	144	our $NOW;
58	our $USE_FSYNC = 1; # use fsync to write maps - default off
59		145
60	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
61	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
62
63	our %CFG;
64
65	our $UPTIME; $UPTIME ||= time;
66	our $RUNTIME;
67
68	our %PLAYER; # all users
69	our %MAP; # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
71	our $RANDOM_MAPS = cf::localdir . "/random";
72	our $BDB_ENV_DIR = cf::localdir . "/db";
73
74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76		149
77	# 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 ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
80	binmode STDOUT;	166	binmode STDOUT;
81	binmode STDERR;	167	binmode STDERR;
82		168
83	# read virtual server time, if available	169	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
85	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
86	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
87	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
88	}	174	}
89		175
90	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
91	mkdir cf::localdir . "/" . cf::playerdir;	177
92	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
93	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
94	mkdir $RANDOM_MAPS;
95	mkdir $BDB_ENV_DIR;
96		180
97	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
98		182
99	sub cf::map::normalise;	183	sub cf::map::normalise;
100		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
101	#############################################################################	189	#############################################################################
102		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
103	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
104		203
105	=over 4	204	=over 4
106		205
107	=item $cf::UPTIME	206	=item $cf::UPTIME
108		207
109	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.
110		224
111	=item $cf::RUNTIME	225	=item $cf::RUNTIME
112		226
113	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
114	every server tick.	228	every server tick.
115		229
116	=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
117		233
118	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
119	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.
120		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
121	=item $cf::NOW	245	=item $cf::LOAD
122		246
123	The time of the last (current) server tick.	247	The raw value load value from the last tick.
124
125	=item $cf::TICK
126
127	The interval between server ticks, in seconds.
128		248
129	=item %cf::CFG	249	=item %cf::CFG
130		250
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
132	from wherever your confdir points to.	252	from wherever your confdir points to.
133		253
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		255
136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
138	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
139	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
140		289
141	=back	290	=back
142		291
143	=cut	292	=cut
144		293
145	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
146	*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 {
147	my $msg = join "", @_;	301	my $msg = join "", @_;
148	utf8::encode $msg;
149		302
150	$msg .= "\n"	303	$msg .= "\n"
151	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
152		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
153	LOG llevError, $msg;	308	LOG llevWarn, $msg;
154	};	309	};
155	}	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	};
156		324
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@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';
162	@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)
163		332
164	# 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
165	# within the Safe compartment.	334	# within the Safe compartment.
166	for my $pkg (qw(	335	for my $pkg (qw(
167	cf::global cf::attachable	336	cf::global cf::attachable
168	cf::object cf::object::player	337	cf::object cf::object::player
169	cf::client cf::player	338	cf::client cf::player
170	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
171	cf::map cf::party cf::region	341	cf::party cf::region
172	)) {	342	)) {
173	no strict 'refs';
174	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
175	}	344	}
176		345
177	$Event::DIED = sub {	346	$EV::DIED = sub {
178	warn "error in event callback: @_";	347	warn "error in event callback: $@";
179	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
180		356
181	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
182		358
183	=over 4	359	=over 4
184		360
…		…
203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204	$d	380	$d
205	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
206	}	382	}
207		383
208	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
209		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
210	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
211		437
212	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
213		439
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
222		441
223	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
224		443
225	=cut	444	=cut
226		445
227	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
229	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	}
230	}	511	}
231		512
232	=item cf::lock_wait $string	513	=item cf::lock_wait $string
233		514
234	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
235		516
236	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
237		518
238	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
239	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,
240	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
241	returned.	522	returned.
242		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
243	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
244	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
245		529
246	=cut	530	=item $locked = cf::lock_active $string
247		531
248	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
249		537
250	sub lock_wait($) {	538	sub lock_wait($) {
251	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
252
253	# wait for lock, if any
254	while ($LOCK{$key}) {
255	push @{ $LOCK{$key} }, $Coro::current;
256	Coro::schedule;
257	}
258	}	540	}
259		541
260	sub lock_acquire($) {	542	sub lock_acquire($) {
261	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
262		545
263	# wait, to be sure we are not locked	546	sub lock_active($) {
264	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
265
266	$LOCK{$key} = [];
267
268	Coro::guard {
269	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };
271	}
272	}	548	}
273		549
274	sub freeze_mainloop {	550	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
276		552
277	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
278	$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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
279	};	623	}
280	$TICK_WATCHER->stop;	624	};
281	$guard	625
		626	sub get_slot($;$$) {
		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	$sig->wait;
282	}	639	}
283		640
284	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
285		642
286	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
291		648
292	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
293		650
294	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
295		652
296	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
297	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
299		657
300	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
301	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
302	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
303	fast or be very important.	661	fast or be very important.
…		…
305	=cut	663	=cut
306		664
307	sub sync_job(&) {	665	sub sync_job(&) {
308	my ($job) = @_;	666	my ($job) = @_;
309		667
310	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
311	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
313		673
314	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
315	# (but this is cancel-safe)	675
316	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
317		677
318	my $busy = 1;	678	my $busy = 1;
319	my @res;	679	my @res;
320		680
321	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
322	@res = eval { $job->() };	683	@res = eval { $job->() };
323	warn $@ if $@;	684	error $@ if $@;
324	undef $busy;	685	undef $busy;
325	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
326		687
327	while ($busy) {	688	while ($busy) {
328	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::run EV::RUN_ONESHOT;
329	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
330		699
331	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
332	} else {	701	} else {
333	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
334		703
…		…
354	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
355		724
356	$coro	725	$coro
357	}	726	}
358		727
359	sub write_runtime {	728	=item fork_call { }, @args
360	my $guard = cf::lock_acquire "write_runtime";
361		729
362	my $runtime = cf::localdir . "/runtime";	730	Executes the given code block with the given arguments in a seperate
		731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
363		734
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
365	or return;
366		736
367	my $value = $cf::RUNTIME + 90 + 10;	737	sub post_fork {
368	# 10 is the runtime save interval, for a monotonic clock	738	reset_signals;
369	# 60 allows for the watchdog to kill the server.	739	}
370		740
371	(aio_write $fh, 0, (length $value), $value, 0) <= 0	741	sub fork_call(&@) {
372	and return;	742	my ($cb, @args) = @_;
373		743
374	# always fsync - this file is important	744	my @res = Coro::Util::fork_eval {
375	aio_fsync $fh	745	cf::post_fork;
376	and return;	746	&$cb
		747	} @args;
377		748
378	close $fh	749	wantarray ? @res : $res[-1]
379	or return;	750	}
380		751
381	aio_rename "$runtime~", $runtime	752	sub objinfo {
382	and return;
383
384	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 });
385	}	927	}
386		928
387	=back	929	=back
388		930
389	=cut	931	=cut
390		932
391	#############################################################################	933	#############################################################################
392		934
393	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
394		936
395	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
396	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")
397	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
398		940
399	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>
400	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
401	crossfire+).	943	Deliantra).
402		944
403	=over 4	945	=over 4
404		946
405	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
406		948
…		…
450	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
451		993
452	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
454		996
455	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
456	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.
457		999
458	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
459		1001
460	=over 4	1002	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
570		1112
571	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		1117
576	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
578		1120
579	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
584		1126
585	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
586	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
587		1129
588	} elsif (ref $type) {	1130	} elsif (ref $type) {
589	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
590		1132
591	} else {	1133	} else {
592	shift @arg;	1134	shift @arg;
593	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
594	}	1136	}
595	}	1137	}
596	}	1138	}
597		1139
598	sub _object_attach {	1140	sub _object_attach {
…		…
608	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
609	}	1151	}
610		1152
611	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
612	} else {	1154	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
614	}	1156	}
615		1157
616	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
617	}	1159	}
618		1160
…		…
620	if (ref $_[0]) {	1162	if (ref $_[0]) {
621	_object_attach @_;	1163	_object_attach @_;
622	} else {	1164	} else {
623	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
624	}	1166	}
		1167	_recalc_want;
625	};	1168	};
626		1169
627	# all those should be optimised	1170	# all those should be optimised
628	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1176	reattach ($obj);
634	} else {	1177	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
636	}	1179	}
		1180	_recalc_want;
637	};	1181	};
638		1182
639	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
641		1185
…		…
656	";	1200	";
657	die if $@;	1201	die if $@;
658	}	1202	}
659		1203
660	our $override;	1204	our $override;
661	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?
662		1206
663	sub override {	1207	sub override {
664	$override = 1;	1208	$override = 1;
665	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
666	}	1210	}
667		1211
668	sub do_invoke {	1212	sub do_invoke {
669	my $event = shift;	1213	my $event = shift;
670	my $callbacks = shift;	1214	my $callbacks = shift;
671		1215
672	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
673		1217
674	local $override;	1218	local $override;
675		1219
676	for (@$callbacks) {	1220	for (@$callbacks) {
677	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
678		1222
679	if ($@) {	1223	if ($@) {
680	warn "$@";
681	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
682	override;	1225	override;
683	}	1226	}
684		1227
685	return 1 if $override;	1228	return 1 if $override;
686	}	1229	}
687		1230
688	0	1231	0
689	}	1232	}
690		1233
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1235
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1237
695	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
696		1239
697	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
698	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
699	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1243
701	=back	1244	=back
702		1245
703	=cut	1246	=cut
704		1247
705	#############################################################################	1248	#############################################################################
706	# 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, $ob2
		1291	}
707		1292
708	sub reattach {	1293	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1295	my ($obj) = @_;
711		1296
		1297	# no longer needed after getting rid of delete_package?
712	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
713		1299
714	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
715		1301
716	@$registry = ();	1302	@$registry = ();
717		1303
…		…
722	for (@$attach) {	1308	for (@$attach) {
723	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
724	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
725	}	1311	}
726	} else {	1312	} else {
727	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
728	}	1314	}
729	}	1315	}
730	}	1316	}
731		1317
732	cf::attachable->attach (	1318	cf::attachable->attach (
733	prio => -1000000,	1319	prio => -1000000,
734	on_instantiate => sub {	1320	on_instantiate => sub {
735	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
736		1322
737	$data = from_json $data;	1323	$data = decode_json $data;
738		1324
739	for (@$data) {	1325	for (@$data) {
740	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
741		1327
742	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1344	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
760		1346
761	sync_job {	1347	sync_job {
762	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
765		1353
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	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	}
770	close $fh;	1361	aio_close $fh;
771		1362
772	if (@$objs) {	1363	if (@$objs) {
773	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) {
774	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
777	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	}
778	close $fh;	1372	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
780	}	1374	}
781	} else {	1375	} else {
782	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
783	}	1377	}
784		1378
785	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1383	} else {
787	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
788	}	1385	}
789	} else {	1386	} else {
790	aio_unlink $filename;	1387	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
792	}	1389	}
793	}	1390	};
794	}	1391	}
795		1392
796	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
798		1395
…		…
810	or return;	1407	or return;
811		1408
812	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
814	or return;	1411	or return;
		1412
815	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
816	}	1415	}
817		1416
		1417	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
820	return ($data, $av);	1422	($data, $av)
821	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
822		1430
823	#############################################################################	1431	#############################################################################
824	# command handling &c	1432	# command handling &c
825		1433
826	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
827		1435
828	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
829	$name.	1437	$name.
830		1438
831	=cut	1439	=cut
…		…
837	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
838		1446
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1448	}
841		1449
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
843		1451
844	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.
845		1457
846	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
847	called.
848		1459
849	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
850		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$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
851	sub register_extcmd {	1482	sub register_extcmd($$) {
852	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
853		1484
854	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
855	}	1486	}
856		1487
		1488	sub register_async_extcmd($$) {
		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} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
857	cf::player->attach (	1508	cf::player->attach (
858	on_command => sub {	1509	on_unknown_command => sub {
859	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
860		1511
861	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
862	or return;	1513	or return;
863		1514
…		…
868	cf::override;	1519	cf::override;
869	},	1520	},
870	on_extcmd => sub {	1521	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
872		1523
873	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1525
875	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
878	$pl->ext_reply ($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);
879	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
880	}	1547	}
		1548
881	} else {	1549	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1551	}
884		1552
885	cf::override;	1553	cf::override;
886	},	1554	},
887	);	1555	);
888		1556
		1557	# "readahead" all extensions
889	sub load_extension {	1558	sub cache_extensions {
890	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
891		1560
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1564	}
917	die $@;
918	}	1565	};
919		1566
920	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;
921	}	1579	}
922		1580
923	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
924	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1590	next unless -r $path;
926	eval {	1591
927	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 $active;
		1663	}
928	1	1664	}
929	} or warn "$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	}
930	}	1677	};
931	}	1678	}
932		1679
933	#############################################################################	1680	#############################################################################
934		1681
		1682	=back
		1683
935	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
936		1685
937	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
938		1687
939	=cut	1688	=cut
940		1689
941	package cf::player;	1690	package cf::player;
942		1691
…		…
944		1693
945	=head3 cf::player	1694	=head3 cf::player
946		1695
947	=over 4	1696	=over 4
948		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
949	=item cf::player::find $login	1712	=item cf::player::find $login
950		1713
951	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
952		1715
953	=cut	1716	=cut
954		1717
955	sub playerdir($) {	1718	sub playerdir($) {
956	cf::localdir	1719	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1721	}
962		1722
963	sub path($) {	1723	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1725
966	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
967	}	1727	}
968		1728
969	sub find_active($) {	1729	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
974		1734
975	sub exists($) {	1735	sub exists($) {
976	my ($login) = @_;	1736	my ($login) = @_;
977		1737
978	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1739	or !aio_stat path $login
980	}	1740	}
981		1741
982	sub find($) {	1742	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1744	my $login = $_[0];
985		1745
986	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
987		1747
988	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
989	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
990	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;
991	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
992	}	1765	}
993	}	1766	}
994	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($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	);
995		1781
996	sub save($) {	1782	sub save($) {
997	my ($pl) = @_;	1783	my ($pl) = @_;
998		1784
999	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1004	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1005		1791
1006	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1007	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1008		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
1009	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1010	Coro::cede;	1801	cf::cede_to_tick;
1011	}	1802	}
1012		1803
1013	sub new($) {	1804	sub new($) {
1014	my ($login) = @_;	1805	my ($login) = @_;
1015		1806
…		…
1021	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1022		1813
1023	$self	1814	$self
1024	}	1815	}
1025		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
1026	=item $pl->quit_character	1827	=item $pl->quit_character
1027		1828
1028	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1029	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1030		1831
…		…
1034	my ($pl) = @_;	1835	my ($pl) = @_;
1035		1836
1036	my $name = $pl->ob->name;	1837	my $name = $pl->ob->name;
1037		1838
1038	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1039	$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
1040		1841
1041	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1042	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1043	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1044	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1045		1850
1046	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1047	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1048	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
…		…
1077	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1078		1883
1079	=cut	1884	=cut
1080		1885
1081	sub list_logins {	1886	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1888	or return [];
1084		1889
1085	my @logins;	1890	my @logins;
1086		1891
1087	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") {
1088	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1089	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1090	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1091		1902
1092	utf8::decode $login;	1903	utf8::decode $login;
1093	push @logins, $login;	1904	push @logins, $login;
1094	}	1905	}
1095		1906
1096	\@logins	1907	\@logins
1097	}	1908	}
1098		1909
1099	=item $player->maps	1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
1100		1913
1101	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1102	player. May block.	1915	player. May block.
1103		1916
1104	=cut	1917	=cut
…		…
1122	}	1935	}
1123		1936
1124	\@paths	1937	\@paths
1125	}	1938	}
1126		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1128		1945
1129	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1130		1947
1131	=cut	1948	=cut
1132		1949
1133	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1134	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1135		1952
1136	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1137
1138	$self->send ("ext " . cf::to_json \%msg);
1139	}	1954	}
1140		1955
1141	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	}
1142		1986
1143	=back	1987	=back
1144
1145		1988
1146	=head3 cf::map	1989	=head3 cf::map
1147		1990
1148	=over 4	1991	=over 4
1149		1992
…		…
1161	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1162	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1163		2006
1164	sub generate_random_map {	2007	sub generate_random_map {
1165	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1166	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1167	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1168	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1169	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1170	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1171	$rmp->{exit_on_final_map},
1172	$rmp->{xsize}, $rmp->{ysize},
1173	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1174	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1175	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1176	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1177	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1178	(cf::region::find $rmp->{region}), $rmp->{custom}
1179	)
1180	}	2013	}
1181		2014
1182	=item cf::map->register ($regex, $prio)	2015	=item cf::map->register ($regex, $prio)
1183		2016
1184	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
…		…
1189		2022
1190	sub register {	2023	sub register {
1191	my (undef, $regex, $prio) = @_;	2024	my (undef, $regex, $prio) = @_;
1192	my $pkg = caller;	2025	my $pkg = caller;
1193		2026
1194	no strict;
1195	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1196		2028
1197	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1198	}	2030	}
1199		2031
1200	# also paths starting with '/'	2032	# also paths starting with '/'
1201	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1202		2034
1203	sub thawer_merge {	2035	sub thawer_merge {
1204	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1205		2037
1206	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1207	local $self->{path};	2039	local $self->{path};
1208	local $self->{load_path};	2040	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		2041
1212	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1213	}	2043	}
1214		2044
1215	sub normalise {	2045	sub normalise {
1216	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
1217		2047
1218	$path = "$path"; # make sure its a string	2048	$path = "$path"; # make sure it's a string
1219		2049
1220	$path =~ s/\.map$//;	2050	$path =~ s/\.map$//;
1221		2051
1222	# map plan:	2052	# map plan:
1223	#	2053	#
…		…
1238	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1239	$path = "$base/$path";	2069	$path = "$base/$path";
1240	}	2070	}
1241		2071
1242	for ($path) {	2072	for ($path) {
1243	redo if s{//}{/};
1244	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1245	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1246	}	2075	}
1247		2076
1248	$path	2077	$path
…		…
1262	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1263	return $self;	2092	return $self;
1264	}	2093	}
1265	}	2094	}
1266		2095
1267	Carp::carp "unable to resolve path '$path' (base '$base').";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1268	()	2097	()
1269	}	2098	}
1270		2099
		2100	# may re-bless or do other evil things
1271	sub init {	2101	sub init {
1272	my ($self) = @_;	2102	my ($self) = @_;
1273		2103
1274	$self	2104	$self
1275	}	2105	}
…		…
1287		2117
1288	# the original (read-only) location	2118	# the original (read-only) location
1289	sub load_path {	2119	sub load_path {
1290	my ($self) = @_;	2120	my ($self) = @_;
1291		2121
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1293	}	2123	}
1294		2124
1295	# the temporary/swap location	2125	# the temporary/swap location
1296	sub save_path {	2126	sub save_path {
1297	my ($self) = @_;	2127	my ($self) = @_;
1298		2128
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1301	}	2131	}
1302		2132
1303	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1304	sub uniq_path {	2134	sub uniq_path {
1305	my ($self) = @_;	2135	my ($self) = @_;
1306		2136
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1309	}	2139	}
1310		2140
1311	# and all this just because we cannot iterate over	2141	sub decay_objects {
1312	# all maps in C++...
1313	sub change_all_map_light {
1314	my ($change) = @_;	2142	my ($self) = @_;
1315		2143
1316	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1317	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1318	}	2147	}
1319		2148
1320	sub unlink_save {	2149	sub unlink_save {
1321	my ($self) = @_;	2150	my ($self) = @_;
1322		2151
…		…
1327		2156
1328	sub load_header_from($) {	2157	sub load_header_from($) {
1329	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1330		2159
1331	utf8::encode $path;	2160	utf8::encode $path;
1332	#aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1333	# or return;
1334
1335	$self->_load_header ($path)
1336	or return;	2162	or return;
1337		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1338	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1339		2171
1340	1	2172	1
1341	}	2173	}
1342		2174
		2175	# used to laod the header of an original map
1343	sub load_header_orig {	2176	sub load_header_orig {
1344	my ($self) = @_;	2177	my ($self) = @_;
1345		2178
1346	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1347	}	2180	}
1348		2181
		2182	# used to laod the header of an instantiated map
1349	sub load_header_temp {	2183	sub load_header_temp {
1350	my ($self) = @_;	2184	my ($self) = @_;
1351		2185
1352	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
1353	}	2187	}
1354		2188
		2189	# called after loading the header from an instantiated map
1355	sub prepare_temp {	2190	sub prepare_temp {
1356	my ($self) = @_;	2191	my ($self) = @_;
1357		2192
1358	$self->last_access ((delete $self->{last_access})	2193	$self->last_access ((delete $self->{last_access})
1359	|| $cf::RUNTIME); #d#	2194	|| $cf::RUNTIME); #d#
1360	# safety	2195	# safety
1361	$self->{instantiate_time} = $cf::RUNTIME	2196	$self->{instantiate_time} = $cf::RUNTIME
1362	if $self->{instantiate_time} > $cf::RUNTIME;	2197	if $self->{instantiate_time} > $cf::RUNTIME;
1363	}	2198	}
1364		2199
		2200	# called after loading the header from an original map
1365	sub prepare_orig {	2201	sub prepare_orig {
1366	my ($self) = @_;	2202	my ($self) = @_;
1367		2203
1368	$self->{load_original} = 1;	2204	$self->{load_original} = 1;
1369	$self->{instantiate_time} = $cf::RUNTIME;	2205	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1380	$self->load_header_orig	2216	$self->load_header_orig
1381	or return;	2217	or return;
1382	$self->prepare_orig;	2218	$self->prepare_orig;
1383	}	2219	}
1384		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 $self->default_region;
		2226
1385	1	2227	1
1386	}	2228	}
1387		2229
1388	sub find;	2230	sub find;
1389	sub find {	2231	sub find {
1390	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1391		2233
		2234	cf::cede_to_tick;
		2235
1392	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1393		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1394	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1395		2240
1396	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1397	my $guard = cf::lock_acquire "map_find:$path";
1398	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1399	or return;	2243	or return;
1400		2244
1401	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1402		2246
1403	$map->load_header	2247	$map->load_header
1404	or return;	2248	or return;
1405		2249
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	2251	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1409	$map->reset;	2255	$map->reset;
1410	undef $guard;
1411	return find $path;	2256	return find $path;
1412	}	2257	}
1413		2258
1414	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1415	}	2260	}
1416	}	2261	}
1417		2262
1418	sub pre_load { }	2263	sub pre_load { }
1419	sub post_load { }	2264	#sub post_load { } # XS
1420		2265
1421	sub load {	2266	sub load {
1422	my ($self) = @_;	2267	my ($self) = @_;
1423		2268
1424	local $self->{deny_reset} = 1; # loading can take a long time	2269	local $self->{deny_reset} = 1; # loading can take a long time
1425		2270
1426	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1427	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1428		2275
1429	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1430		2278
1431	$self->in_memory (cf::MAP_LOADING);
1432
1433	$self->alloc;	2279	$self->alloc;
1434		2280
1435	$self->pre_load;	2281	$self->pre_load;
		2282	cf::cede_to_tick;
1436		2283
1437	$self->_load_objects ($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)
1438	or return;	2288	or return;
1439		2289
1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1441	if delete $self->{load_original};	2291	if delete $self->{load_original};
1442		2292
1443	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1444	utf8::encode $uniq;	2294	utf8::encode $uniq;
1445	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1446	$self->clear_unique_items;	2297	$self->clear_unique_items;
1447	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1448	}	2302	}
1449	}
1450		2303
1451	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1452		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1453	# now do the right thing for maps	2313	# now do the right thing for maps
1454	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1455
1456	unless ($self->{deny_activate}) {
1457	$self->decay_objects;
1458	$self->fix_auto_apply;
1459	$self->update_buttons;
1460	Coro::cede;
1461	$self->set_darkness_map;
1462	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	2316	unless $self->difficulty;
1464	Coro::cede;	2317	cf::cede_to_tick;
1465	$self->activate;	2318
		2319	unless ($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);
1466	}	2329	}
1467		2330
1468	$self->post_load;	2331	$self->post_load;
1469		2332
1470	$self->in_memory (cf::MAP_IN_MEMORY);	2333	1
1471	}	2334	}
1472		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1473	sub customise_for {	2339	sub customise_for {
1474	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1475		2341
1476	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	2343	if $self->per_player;
1478		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1479	$self	2348	$self
1480	}
1481
1482	# find and load all maps in the 3x3 area around a map
1483	sub load_diag {
1484	my ($map) = @_;
1485
1486	my @diag; # diagonal neighbours
1487
1488	for (0 .. 3) {
1489	my $neigh = $map->tile_path ($_)
1490	or next;
1491	$neigh = find $neigh, $map
1492	or next;
1493	$neigh->load;
1494
1495	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1496	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1497	}
1498
1499	for (@diag) {
1500	my $neigh = find @$_
1501	or next;
1502	$neigh->load;
1503	}
1504	}	2349	}
1505		2350
1506	sub find_sync {	2351	sub find_sync {
1507	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1508		2353
1509	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, $origin
1510	}	2359	}
1511		2360
1512	sub do_load_sync {	2361	sub do_load_sync {
1513	my ($map) = @_;	2362	my ($map) = @_;
1514		2363
1515	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;
1516	}	2369	}
1517		2370
1518	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1519	our $MAP_PREFETCHER = undef;	2372	our $MAP_PREFETCHER = undef;
1520		2373
1521	sub find_async {	2374	sub find_async {
1522	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1523		2376
1524	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1525		2378
1526	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1527	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
1528	}	2381	}
1529		2382
1530	undef $MAP_PREFETCH{$path};	2383	$MAP_PREFETCH{$path} |= $load;
		2384
1531	$MAP_PREFETCHER ||= cf::async {	2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
1532	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1533	for my $path (keys %MAP_PREFETCH) {	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1534	my $map = find $path	2390	if (my $map = find $k) {
1535	or next;
1536	$map->load;	2391	$map->load if $v;
		2392	}
1537		2393
1538	delete $MAP_PREFETCH{$path};	2394	delete $MAP_PREFETCH{$k};
1539	}	2395	}
1540	}	2396	}
1541	undef $MAP_PREFETCHER;	2397	undef $MAP_PREFETCHER;
1542	};	2398	};
1543	$MAP_PREFETCHER->prio (6);	2399	$MAP_PREFETCHER->prio (6);
1544		2400
1545	()	2401	()
1546	}	2402	}
1547		2403
		2404	# common code, used by both ->save and ->swapout
1548	sub save {	2405	sub _save {
1549	my ($self) = @_;	2406	my ($self) = @_;
1550
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
1552		2407
1553	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1554		2409
1555	return unless $self->dirty;	2410	return unless $self->dirty;
1556		2411
…		…
1562	return if $self->{deny_save};	2417	return if $self->{deny_save};
1563		2418
1564	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1565		2420
1566	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1567	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1568	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1569		2427
1570	if ($uniq) {	2428	if ($uniq) {
1571	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1572	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1573	} else {	2431	} else {
1574	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1575	}	2433	}
1576	}	2434	}
1577		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1578	sub swap_out {	2444	sub swap_out {
1579	my ($self) = @_;	2445	my ($self) = @_;
1580		2446
1581	# save first because save cedes
1582	$self->save;
1583
1584	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1585		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1586	return if $self->players;	2451	return if $self->players;
1587	return if $self->in_memory != cf::MAP_IN_MEMORY;
1588	return if $self->{deny_save};
1589		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
1590	$self->clear;	2462	$self->clear;
1591	$self->in_memory (cf::MAP_SWAPPED);
1592	}	2463	}
1593		2464
1594	sub reset_at {	2465	sub reset_at {
1595	my ($self) = @_;	2466	my ($self) = @_;
1596		2467
1597	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1599	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1600		2470
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		2473
…		…
1614	my ($self) = @_;	2484	my ($self) = @_;
1615		2485
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		2487
1618	return if $self->players;	2488	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		2489
1621	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1622		2491
1623	$self->in_memory (cf::MAP_SWAPPED);	2492	$self->state (cf::MAP_SWAPPED);
1624		2493
1625	# need to save uniques path	2494	# need to save uniques path
1626	unless ($self->{deny_save}) {	2495	unless ($self->{deny_save}) {
1627	my $uniq = $self->uniq_path; utf8::encode $uniq;	2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1628		2497
…		…
1630	if $uniq;	2499	if $uniq;
1631	}	2500	}
1632		2501
1633	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1634		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1635	$self->clear;	2506	$self->clear;
1636
1637	$_->clear_links_to ($self) for values %cf::MAP;
1638		2507
1639	$self->unlink_save;	2508	$self->unlink_save;
1640	$self->destroy;	2509	$self->destroy;
1641	}	2510	}
1642		2511
1643	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1644		2513
1645	sub nuke {	2514	sub nuke {
1646	my ($self) = @_;	2515	my ($self) = @_;
1647		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1648	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1649		2521
1650	$self->unlink_save;	2522	$self->unlink_save;
1651		2523
1652	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1653	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1654	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1655	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1656	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1657		2529
1658	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1659		2532
1660	$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	]
1661	}	2570	}
1662		2571
1663	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1664		2573
1665	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	2575	instantiated unique items. May block.
1667		2576
1668	=cut	2577	=cut
1669		2578
1670	sub unique_maps() {	2579	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1672	or return;	2581	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	2582	utf8::decode $_;
1678	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1679	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1680		2585	? ()
1681	push @paths, cf::map::normalise $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	2588	]
1683
1684	\@paths
1685	}	2589	}
1686		2590
1687	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	}
1688		2622
1689	=back	2623	=back
1690		2624
1691	=head3 cf::object	2625	=head3 cf::object
1692		2626
…		…
1696		2630
1697	=over 4	2631	=over 4
1698		2632
1699	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1700		2634
1701	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.
1702		2637
1703	=cut	2638	=cut
1704		2639
1705	sub inv_recursive_;	2640	sub inv_recursive_;
1706	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1709		2644
1710	sub inv_recursive {	2645	sub inv_recursive {
1711	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1712	}	2647	}
1713		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
1714	package cf;	2677	package cf;
1715		2678
1716	=back	2679	=back
1717		2680
1718	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1724	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>
1725	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
1726	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1727		2690
1728	=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	};
1729		2706
1730	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1731	# with dialog boxes.	2708	# with dialog boxes.
1732	#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
1733	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1735		2712
1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1737		2714
1738	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1739	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1740	} 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 {
1741	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1742	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1743	}	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 (@_);
1744	}	2740	}
1745		2741
1746	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1747		2743
1748	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
1749	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
1750		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
1751	=cut	2772	=cut
1752		2773
1753	sub cf::object::player::may {	2774	sub cf::object::player::may {
1754	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
1755		2776
1756	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
1757	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
1758	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1759	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
1760	}	2781	}
1761		2782
1762	=item $player_object->enter_link	2783	=item $player_object->enter_link
1763		2784
1764	Freezes the player and moves him/her to a special map (C<{link}>).	2785	Freezes the player and moves him/her to a special map (C<{link}>).
1765		2786
1766	The player should be reasonably safe there for short amounts of time. You	2787	The player should be reasonably safe there for short amounts of time (e.g.
1767	I<MUST> call C<leave_link> as soon as possible, though.	2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
1768		2791
1769	Will never block.	2792	This method will never block, which is the whole reaosn for it's
		2793	existance: you can I<always> put a player onto the link map, which is the
		2794	only place to put objects that is guaranteed to exist.
		2795
		2796	A typical usage pattern is to call C<enter_link> synchronously from the
		2797	server, then start a new thread, do your blocking stuff there and then
		2798	call C<leave_link> from that thread.
1770		2799
1771	=item $player_object->leave_link ($map, $x, $y)	2800	=item $player_object->leave_link ($map, $x, $y)
1772		2801
1773	Moves the player out of the special C<{link}> map onto the specified	2802	Moves the player out of the special C<{link}> map onto the specified
1774	map. If the map is not valid (or omitted), the player will be moved back	2803	map. If the map is not valid (or omitted), the player will be moved back
…		…
1792	sub cf::object::player::enter_link {	2821	sub cf::object::player::enter_link {
1793	my ($self) = @_;	2822	my ($self) = @_;
1794		2823
1795	$self->deactivate_recursive;	2824	$self->deactivate_recursive;
1796		2825
		2826	++$self->{_link_recursion};
		2827
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	2828	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		2829
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2830	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	2831	if $self->map && $self->map->{path} ne "{link}";
1801		2832
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2833	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1803	}	2834	}
1804		2835
1805	sub cf::object::player::leave_link {	2836	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	2837	my ($self, $map, $x, $y) = @_;
		2838
		2839	return unless $self->contr->active;
1807		2840
1808	my $link_pos = delete $self->{_link_pos};	2841	my $link_pos = delete $self->{_link_pos};
1809		2842
1810	unless ($map) {	2843	unless ($map) {
1811	# restore original map position	2844	# restore original map position
…		…
1822	($x, $y) = (-1, -1)	2855	($x, $y) = (-1, -1)
1823	unless (defined $x) && (defined $y);	2856	unless (defined $x) && (defined $y);
1824		2857
1825	# use -1 or undef as default coordinates, not 0, 0	2858	# use -1 or undef as default coordinates, not 0, 0
1826	($x, $y) = ($map->enter_x, $map->enter_y)	2859	($x, $y) = ($map->enter_x, $map->enter_y)
1827	if $x <=0 && $y <= 0;	2860	if $x <= 0 && $y <= 0;
1828		2861
1829	$map->load;	2862	$map->load;
1830	$map->load_diag;
1831		2863
1832	return unless $self->contr->active;	2864	return unless $self->contr->active;
1833	$self->activate_recursive;
1834		2865
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2866	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2867	if ($self->enter_map ($map, $x, $y)) {
1837	}	2868	# entering was successful
1838		2869	delete $self->{_link_recursion};
1839	cf::player->attach (	2870	# only activate afterwards, to support waiting in hooks
1840	on_logout => sub {	2871	$self->activate_recursive;
1841	my ($pl) = @_;
1842
1843	# abort map switching before logout
1844	if ($pl->ob->{_link_pos}) {
1845	cf::sync_job {
1846	$pl->ob->leave_link
1847	};
1848	}
1849	},	2872	}
1850	on_login => sub {
1851	my ($pl) = @_;
1852		2873
1853	# try to abort aborted map switching on player login :)	2874	}
1854	# should happen only on crashes
1855	if ($pl->ob->{_link_pos}) {
1856	$pl->ob->enter_link;
1857	(async {
1858	$pl->ob->reply (undef,
1859	"There was an internal problem at your last logout, "
1860	. "the server will try to bring you to your intended destination in a second.",
1861	cf::NDI_RED);
1862	# we need this sleep as the login has a concurrent enter_exit running
1863	# and this sleep increases chances of the player not ending up in scorn
1864	Coro::Timer::sleep 1;
1865	$pl->ob->leave_link;
1866	})->prio (2);
1867	}
1868	},
1869	);
1870		2875
1871	=item $player_object->goto ($path, $x, $y)	2876	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1872		2877
		2878	Moves the player to the given map-path and coordinates by first freezing
		2879	her, loading and preparing them map, calling the provided $check callback
		2880	that has to return the map if sucecssful, and then unfreezes the player on
		2881	the new (success) or old (failed) map position. In either case, $done will
		2882	be called at the end of this process.
		2883
		2884	Note that $check will be called with a potentially non-loaded map, so if
		2885	it needs a loaded map it has to call C<< ->load >>.
		2886
1873	=cut	2887	=cut
		2888
		2889	our $GOTOGEN;
1874		2890
1875	sub cf::object::player::goto {	2891	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2892	my ($self, $path, $x, $y, $check, $done) = @_;
		2893
		2894	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2895	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2896	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2897	($path, $x, $y) = @$EMERGENCY_POSITION;
		2898	}
		2899
		2900	# do generation counting so two concurrent goto's will be executed in-order
		2901	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2902
1878	$self->enter_link;	2903	$self->enter_link;
1879		2904
1880	(async {	2905	(async {
		2906	$Coro::current->{desc} = "player::goto $path $x $y";
		2907
		2908	# *tag paths override both path and x|y
		2909	if ($path =~ /^\*(.*)$/) {
		2910	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2911	my $ob = $obs[rand @obs];
		2912
		2913	# see if we actually can go there
		2914	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2915	$ob = $obs[rand @obs];
		2916	} else {
		2917	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2918	}
		2919	# else put us there anyways for now #d#
		2920
		2921	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2922	} else {
		2923	($path, $x, $y) = (undef, undef, undef);
		2924	}
		2925	}
		2926
1881	my $map = eval {	2927	my $map = eval {
1882	my $map = cf::map::find $path;	2928	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2929
		2930	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2931	$map = $map->customise_for ($self);
		2932	$map = $check->($map, $x, $y, $self) if $check && $map;
		2933	} else {
		2934	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2935	}
		2936
1884	$map	2937	$map
		2938	};
		2939
		2940	if ($@) {
		2941	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2942	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2943	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2944
		2945	if ($gen == $self->{_goto_generation}) {
		2946	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2947	$self->leave_link ($map, $x, $y);
		2948	}
		2949
		2950	$done->($self) if $done;
1889	})->prio (1);	2951	})->prio (1);
1890	}	2952	}
1891		2953
1892	=item $player_object->enter_exit ($exit_object)	2954	=item $player_object->enter_exit ($exit_object)
1893		2955
…		…
1913	}	2975	}
1914		2976
1915	sub prepare_random_map {	2977	sub prepare_random_map {
1916	my ($exit) = @_;	2978	my ($exit) = @_;
1917		2979
1918	my $guard = cf::lock_acquire "exit_prepare:$exit";
1919
1920	# all this does is basically replace the /! path by	2980	# all this does is basically replace the /! path by
1921	# a new random map path (?random/...) with a seed	2981	# a new random map path (?random/...) with a seed
1922	# that depends on the exit object	2982	# that depends on the exit object
1923		2983
1924	my $rmp = parse_random_map_params $exit->msg;	2984	my $rmp = parse_random_map_params $exit->msg;
…		…
1926	if ($exit->map) {	2986	if ($exit->map) {
1927	$rmp->{region} = $exit->region->name;	2987	$rmp->{region} = $exit->region->name;
1928	$rmp->{origin_map} = $exit->map->path;	2988	$rmp->{origin_map} = $exit->map->path;
1929	$rmp->{origin_x} = $exit->x;	2989	$rmp->{origin_x} = $exit->x;
1930	$rmp->{origin_y} = $exit->y;	2990	$rmp->{origin_y} = $exit->y;
		2991
		2992	$exit->map->touch;
1931	}	2993	}
1932		2994
1933	$rmp->{random_seed} ||= $exit->random_seed;	2995	$rmp->{random_seed} ||= $exit->random_seed;
1934		2996
1935	my $data = cf::to_json $rmp;	2997	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1936	my $md5 = Digest::MD5::md5_hex $data;	2998	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2999	my $meta = "$RANDOMDIR/$md5.meta";
1938		3000
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3001	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	3002	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	3003	undef $fh;
1942	aio_rename "$meta~", $meta;	3004	aio_rename "$meta~", $meta;
1943		3005
		3006	my $slaying = "?random/$md5";
		3007
		3008	if ($exit->valid) {
1944	$exit->slaying ("?random/$md5");	3009	$exit->slaying ("?random/$md5");
1945	$exit->msg (undef);	3010	$exit->msg (undef);
		3011	}
1946	}	3012	}
1947	}	3013	}
1948		3014
1949	sub cf::object::player::enter_exit {	3015	sub cf::object::player::enter_exit {
1950	my ($self, $exit) = @_;	3016	my ($self, $exit) = @_;
1951		3017
1952	return unless $self->type == cf::PLAYER;	3018	return unless $self->type == cf::PLAYER;
1953		3019
1954	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job
1956	cf::sync_job { prepare_random_map $exit };
1957	}
1958
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;
1961	my $sp = $exit->stats->sp;
1962
1963	$self->enter_link;	3020	$self->enter_link;
1964		3021
1965	(async {	3022	(async {
1966	$self->deactivate_recursive; # just to be sure	3023	$Coro::current->{desc} = "enter_exit";
		3024
1967	unless (eval {	3025	unless (eval {
		3026	$self->deactivate_recursive; # just to be sure
		3027
		3028	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3029	my $x = $exit->stats->hp;
		3030	my $y = $exit->stats->sp;
		3031
		3032	# special map handling
		3033	my $slaying = $exit->slaying;
		3034
		3035	# special map handling
		3036	if ($slaying eq "/!") {
		3037	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3038
		3039	prepare_random_map $exit
		3040	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3041
		3042	$map = $exit->slaying;
		3043
		3044	} elsif ($slaying eq '!up') {
		3045	$map = $exit->map->tile_path (cf::TILE_UP);
		3046	$x = $exit->x;
		3047	$y = $exit->y;
		3048
		3049	} elsif ($slaying eq '!down') {
		3050	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3051	$x = $exit->x;
		3052	$y = $exit->y;
		3053	}
		3054
1968	$self->goto ($slaying, $hp, $sp);	3055	$self->goto ($map, $x, $y);
1969		3056
		3057	# if exit is damned, update players death & WoR home-position
		3058	$self->contr->savebed ($map, $x, $y)
		3059	if $exit->flag (cf::FLAG_DAMNED);
		3060
1970	1;	3061	1
1971	}) {	3062	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	3063	$self->message ("Something went wrong deep within the deliantra server. "
1973	. "I'll try to bring you back to the map you were before. "	3064	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	3065	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	3066	cf::NDI_UNIQUE | cf::NDI_RED);
1976		3067
1977	warn "ERROR in enter_exit: $@";	3068	error "ERROR in enter_exit: $@";
1978	$self->leave_link;	3069	$self->leave_link;
1979	}	3070	}
1980	})->prio (1);	3071	})->prio (1);
1981	}	3072	}
1982		3073
1983	=head3 cf::client	3074	=head3 cf::client
1984		3075
1985	=over 4	3076	=over 4
1986		3077
1987	=item $client->send_drawinfo ($text, $flags)	3078	=item $client->send_big_packet ($pkt)
1988		3079
1989	Sends a drawinfo packet to the client. Circumvents output buffering so	3080	Like C<send_packet>, but tries to compress large packets, and fragments
1990	should not be used under normal circumstances.	3081	them as required.
1991		3082
1992	=cut	3083	=cut
1993		3084
		3085	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3086
		3087	sub cf::client::send_big_packet {
		3088	my ($self, $pkt) = @_;
		3089
		3090	# try lzf for large packets
		3091	$pkt = "lzf " . Compress::LZF::compress $pkt
		3092	if 1024 <= length $pkt and $self->{can_lzf};
		3093
		3094	# split very large packets
		3095	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3096	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3097	$pkt = "frag";
		3098	}
		3099
		3100	$self->send_packet ($pkt);
		3101	}
		3102
		3103	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3104
		3105	Send a msg packet to the client, formatting the msg for the client if
		3106	necessary. C<$type> should be a string identifying the type of the
		3107	message, with C<log> being the default. If C<$color> is negative, suppress
		3108	the message unless the client supports the msg packet.
		3109
		3110	=cut
		3111
		3112	# non-persistent channels (usually the info channel)
		3113	our %CHANNEL = (
		3114	"c/motd" => {
		3115	id => "infobox",
		3116	title => "MOTD",
		3117	reply => undef,
		3118	tooltip => "The message of the day",
		3119	},
		3120	"c/identify" => {
		3121	id => "infobox",
		3122	title => "Identify",
		3123	reply => undef,
		3124	tooltip => "Items recently identified",
		3125	},
		3126	"c/examine" => {
		3127	id => "infobox",
		3128	title => "Examine",
		3129	reply => undef,
		3130	tooltip => "Signs and other items you examined",
		3131	},
		3132	"c/shopinfo" => {
		3133	id => "infobox",
		3134	title => "Shop Info",
		3135	reply => undef,
		3136	tooltip => "What your bargaining skill tells you about the shop",
		3137	},
		3138	"c/book" => {
		3139	id => "infobox",
		3140	title => "Book",
		3141	reply => undef,
		3142	tooltip => "The contents of a note or book",
		3143	},
		3144	"c/lookat" => {
		3145	id => "infobox",
		3146	title => "Look",
		3147	reply => undef,
		3148	tooltip => "What you saw there",
		3149	},
		3150	"c/who" => {
		3151	id => "infobox",
		3152	title => "Players",
		3153	reply => undef,
		3154	tooltip => "Shows players who are currently online",
		3155	},
		3156	"c/body" => {
		3157	id => "infobox",
		3158	title => "Body Parts",
		3159	reply => undef,
		3160	tooltip => "Shows which body parts you posess and are available",
		3161	},
		3162	"c/statistics" => {
		3163	id => "infobox",
		3164	title => "Statistics",
		3165	reply => undef,
		3166	tooltip => "Shows your primary statistics",
		3167	},
		3168	"c/skills" => {
		3169	id => "infobox",
		3170	title => "Skills",
		3171	reply => undef,
		3172	tooltip => "Shows your experience per skill and item power",
		3173	},
		3174	"c/shopitems" => {
		3175	id => "infobox",
		3176	title => "Shop Items",
		3177	reply => undef,
		3178	tooltip => "Shows the items currently for sale in this shop",
		3179	},
		3180	"c/resistances" => {
		3181	id => "infobox",
		3182	title => "Resistances",
		3183	reply => undef,
		3184	tooltip => "Shows your resistances",
		3185	},
		3186	"c/pets" => {
		3187	id => "infobox",
		3188	title => "Pets",
		3189	reply => undef,
		3190	tooltip => "Shows information abotu your pets/a specific pet",
		3191	},
		3192	"c/perceiveself" => {
		3193	id => "infobox",
		3194	title => "Perceive Self",
		3195	reply => undef,
		3196	tooltip => "You gained detailed knowledge about yourself",
		3197	},
		3198	"c/uptime" => {
		3199	id => "infobox",
		3200	title => "Uptime",
		3201	reply => undef,
		3202	tooltip => "How long the server has been running since last restart",
		3203	},
		3204	"c/mapinfo" => {
		3205	id => "infobox",
		3206	title => "Map Info",
		3207	reply => undef,
		3208	tooltip => "Information related to the maps",
		3209	},
		3210	"c/party" => {
		3211	id => "party",
		3212	title => "Party",
		3213	reply => "gsay ",
		3214	tooltip => "Messages and chat related to your party",
		3215	},
		3216	"c/death" => {
		3217	id => "death",
		3218	title => "Death",
		3219	reply => undef,
		3220	tooltip => "Reason for and more info about your most recent death",
		3221	},
		3222	"c/fatal" => {
		3223	id => "fatal",
		3224	title => "Fatal Error",
		3225	reply => undef,
		3226	tooltip => "Reason for the server disconnect",
		3227	},
		3228	"c/say" => $SAY_CHANNEL,
		3229	"c/chat" => $CHAT_CHANNEL,
		3230	);
		3231
1994	sub cf::client::send_drawinfo {	3232	sub cf::client::send_msg {
		3233	my ($self, $channel, $msg, $color, @extra) = @_;
		3234
		3235	$msg = $self->pl->expand_cfpod ($msg)
		3236	unless $color & cf::NDI_VERBATIM;
		3237
		3238	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3239
		3240	# check predefined channels, for the benefit of C
		3241	if ($CHANNEL{$channel}) {
		3242	$channel = $CHANNEL{$channel};
		3243
		3244	$self->ext_msg (channel_info => $channel);
		3245	$channel = $channel->{id};
		3246
		3247	} elsif (ref $channel) {
		3248	# send meta info to client, if not yet sent
		3249	unless (exists $self->{channel}{$channel->{id}}) {
		3250	$self->{channel}{$channel->{id}} = $channel;
		3251	$self->ext_msg (channel_info => $channel);
		3252	}
		3253
		3254	$channel = $channel->{id};
		3255	}
		3256
		3257	return unless @extra || length $msg;
		3258
		3259	# default colour, mask it out
		3260	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3261	if $color & cf::NDI_DEF;
		3262
		3263	my $pkt = "msg "
		3264	. $self->{json_coder}->encode (
		3265	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3266	);
		3267
		3268	$self->send_big_packet ($pkt);
		3269	}
		3270
		3271	=item $client->ext_msg ($type, @msg)
		3272
		3273	Sends an ext event to the client.
		3274
		3275	=cut
		3276
		3277	sub cf::client::ext_msg($$@) {
1995	my ($self, $text, $flags) = @_;	3278	my ($self, $type, @msg) = @_;
1996		3279
1997	utf8::encode $text;	3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1999	}	3281	}
2000
2001		3282
2002	=item $success = $client->query ($flags, "text", \&cb)	3283	=item $success = $client->query ($flags, "text", \&cb)
2003		3284
2004	Queues a query to the client, calling the given callback with	3285	Queues a query to the client, calling the given callback with
2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3286	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2006	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3287	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2007		3288
2008	Queries can fail, so check the return code. Or don't, as queries will become	3289	Queries can fail, so check the return code. Or don't, as queries will
2009	reliable at some point in the future.	3290	become reliable at some point in the future.
2010		3291
2011	=cut	3292	=cut
2012		3293
2013	sub cf::client::query {	3294	sub cf::client::query {
2014	my ($self, $flags, $text, $cb) = @_;	3295	my ($self, $flags, $text, $cb) = @_;
…		…
2022	utf8::encode $text;	3303	utf8::encode $text;
2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3304	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2024		3305
2025	$self->send_packet ($self->{query_queue}[0][0])	3306	$self->send_packet ($self->{query_queue}[0][0])
2026	if @{ $self->{query_queue} } == 1;	3307	if @{ $self->{query_queue} } == 1;
		3308
		3309	1
		3310	}
		3311
		3312	=item $client->update_command_faces
		3313
		3314	=cut
		3315
		3316	our %COMMAND_FACE;
		3317
		3318	sub cf::client::update_command_faces {
		3319	my ($self) = @_;
		3320
		3321	my @faces = grep $_,
		3322	$COMMAND_FACE{preferred},
		3323	$COMMAND_FACE{standard},
		3324	$COMMAND_FACE{skill},
		3325	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3326	$COMMAND_FACE{emote},
		3327	;
		3328
		3329	$self->send_face ($_)
		3330	for @faces;
		3331	$self->flush_fx;
		3332
		3333	$self->ext_msg (command_list => @faces);
		3334	}
		3335
		3336	=item cf::client::set_command_face $type, $commands
		3337
		3338	=cut
		3339
		3340	sub cf::client::set_command_face {
		3341	my ($type, $list) = @_;
		3342
		3343	my $idx = &cf::face::set ( #d# ugly forward reference
		3344	"command_list/$type" => cf::FT_RSRC,
		3345	JSON::XS->new->utf8->encode ([ sort @$list ])
		3346	);
		3347
		3348	$COMMAND_FACE{$type} = $idx;
2027	}	3349	}
2028		3350
2029	cf::client->attach (	3351	cf::client->attach (
		3352	on_connect => sub {
		3353	my ($ns) = @_;
		3354
		3355	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3356	},
2030	on_reply => sub {	3357	on_reply => sub {
2031	my ($ns, $msg) = @_;	3358	my ($ns, $msg) = @_;
2032		3359
2033	# this weird shuffling is so that direct followup queries	3360	# this weird shuffling is so that direct followup queries
2034	# get handled first	3361	# get handled first
…		…
2046	} else {	3373	} else {
2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3374	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2048	}	3375	}
2049	}	3376	}
2050	},	3377	},
		3378	on_exticmd => sub {
		3379	my ($ns, $buf) = @_;
		3380
		3381	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3382
		3383	if (ref $msg) {
		3384	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3385
		3386	if (my $cb = $EXTIACMD{$type}) {
		3387	$cb->(
		3388	$ns,
		3389	sub {
		3390	$ns->ext_msg ("reply-$reply", @_)
		3391	if $reply;
		3392	},
		3393	@payload
		3394	);
		3395	} else {
		3396	my @reply;
		3397
		3398	if (my $cb = $EXTICMD{$type}) {
		3399	@reply = $cb->($ns, @payload);
		3400	}
		3401
		3402	$ns->ext_msg ("reply-$reply", @reply)
		3403	if $reply;
		3404	}
		3405	} else {
		3406	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3407	}
		3408
		3409	cf::override;
		3410	},
2051	);	3411	);
2052		3412
2053	=item $client->async (\&cb)	3413	=item $client->async (\&cb)
2054		3414
2055	Create a new coroutine, running the specified callback. The coroutine will	3415	Create a new coroutine, running the specified callback. The coroutine will
…		…
2071		3431
2072	$coro	3432	$coro
2073	}	3433	}
2074		3434
2075	cf::client->attach (	3435	cf::client->attach (
2076	on_destroy => sub {	3436	on_client_destroy => sub {
2077	my ($ns) = @_;	3437	my ($ns) = @_;
2078		3438
2079	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3439	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2080	},	3440	},
2081	);	3441	);
…		…
2096	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
2097	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
2098		3458
2099	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
2100		3460
2101	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3461	$safe->permit_only (Opcode::opset qw(
		3462	:base_core :base_mem :base_orig :base_math :base_loop
		3463	grepstart grepwhile mapstart mapwhile
		3464	sort time
		3465	));
2102		3466
2103	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
2104		3468
2105	=pod	3469	=pod
2106		3470
2107	The following fucntions and emthods are available within a safe environment:	3471	The following functions and methods are available within a safe environment:
2108		3472
2109	cf::object contr pay_amount pay_player map	3473	cf::object
		3474	contr pay_amount pay_player map x y force_find force_add destroy
		3475	insert remove name archname title slaying race decrease split
		3476	value
		3477
2110	cf::object::player player	3478	cf::object::player
2111	cf::player peaceful	3479	player
2112	cf::map trigger	3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
2113		3486
2114	=cut	3487	=cut
2115		3488
2116	for (	3489	for (
2117	["cf::object" => qw(contr pay_amount pay_player map)],	3490	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3491	insert remove inv nrof name archname title slaying race
		3492	decrease split destroy change_exp value msg lore send_msg)],
2118	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
2119	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
2120	["cf::map" => qw(trigger)],	3495	["cf::map" => qw(trigger)],
2121	) {	3496	) {
2122	no strict 'refs';
2123	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
2124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2125	for @funs;	3499	for @funs;
2126	}	3500	}
2127		3501
…		…
2142		3516
2143	my $qcode = $code;	3517	my $qcode = $code;
2144	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2145	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
2146		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
2147	local $_;	3524	local $_;
2148	local @safe::cf::_safe_eval_args = values %vars;
2149		3525
2150	my $eval =	3526	my $eval =
2151	"do {\n"	3527	"do {\n"
2152	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2153	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
2154	. $code	3530	. $code
2155	. "\n}"	3531	. "\n}"
2156	;	3532	;
2157		3533
		3534	if ($CFG{safe_eval}) {
2158	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
2159	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2160	sub_generation_inc;	3538	sub_generation_inc;
		3539	} else {
		3540	local @cf::_safe_eval_args = values %vars;
		3541	@res = wantarray ? eval eval : scalar eval $eval;
		3542	}
2161		3543
2162	if ($@) {	3544	if ($@) {
2163	warn "$@";	3545	warn "$@",
2164	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
2165	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
2166	}	3548	}
2167		3549
2168	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
2169	}	3551	}
2170		3552
…		…
2184	=cut	3566	=cut
2185		3567
2186	sub register_script_function {	3568	sub register_script_function {
2187	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
2188		3570
2189	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
2190	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
2191	}	3573	}
2192		3574
2193	=back	3575	=back
2194		3576
2195	=cut	3577	=cut
2196
2197	#############################################################################
2198
2199	=head2 EXTENSION DATABASE SUPPORT
2200
2201	Crossfire maintains a very simple database for extension use. It can
2202	currently store anything that can be serialised using Storable, which
2203	excludes objects.
2204
2205	The parameter C<$family> should best start with the name of the extension
2206	using it, it should be unique.
2207
2208	=over 4
2209
2210	=item $value = cf::db_get $family => $key
2211
2212	Returns a single value from the database.
2213
2214	=item cf::db_put $family => $key => $value
2215
2216	Stores the given C<$value> in the family.
2217
2218	=cut
2219
2220	our $DB;
2221
2222	sub db_init {
2223	unless ($DB) {
2224	$DB = BDB::db_create $DB_ENV;
2225
2226	cf::sync_job {
2227	eval {
2228	$DB->set_flags (BDB::CHKSUM);
2229
2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232	cf::cleanup "db_open(db): $!" if $!;
2233	};
2234	cf::cleanup "db_open(db): $@" if $@;
2235	};
2236
2237	my $path = cf::localdir . "/database.pst";
2238	if (stat $path) {
2239	cf::sync_job {
2240	my $pst = Storable::retrieve $path;
2241
2242	cf::db_put (board => data => $pst->{board});
2243	cf::db_put (guildrules => data => $pst->{guildrules});
2244	cf::db_put (rent => balance => $pst->{rent}{balance});
2245	BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247	unlink $path;
2248	};
2249	}
2250	}
2251	}
2252
2253	sub db_get($$) {
2254	my $key = "$_[0]/$_[1]";
2255
2256	cf::sync_job {
2257	BDB::db_get $DB, undef, $key, my $data;
2258
2259	$! ? ()
2260	: Compress::LZF::sthaw $data
2261	}
2262	}
2263
2264	sub db_put($$$) {
2265	BDB::dbreq_pri 4;
2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2267	}
2268		3578
2269	#############################################################################	3579	#############################################################################
2270	# the server's init and main functions	3580	# the server's init and main functions
2271		3581
		3582	{
		3583	package cf::face;
		3584
		3585	our %HASH; # hash => idx
		3586	our @DATA; # dynamically-created facedata, only faceste 0 used
		3587	our @FOFS; # file offset, if > 0
		3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
		3591
		3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
		3595
		3596	my $idx = cf::face::find $name;
		3597
		3598	if ($idx) {
		3599	delete $HASH{cf::face::get_csum $idx};
		3600	} else {
		3601	$idx = cf::face::alloc $name;
		3602	}
		3603
		3604	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3605
		3606	cf::face::set_type $idx, $type;
		3607	cf::face::set_csum $idx, 0, $hash;
		3608
		3609	# we need to destroy the SV itself, not just modify it, as a running ix
		3610	# might hold a reference to it: "delete" achieves that.
		3611	delete $FOFS[0][$idx];
		3612	delete $DATA[0][$idx];
		3613	$DATA[0][$idx] = $data;
		3614	$SIZE[0][$idx] = length $data;
		3615	delete $META[$idx];
		3616	$HASH{$hash} = $idx;#d#
		3617
		3618	$idx
		3619	}
		3620
		3621	sub _get_data($$$) {
		3622	my ($idx, $set, $cb) = @_;
		3623
		3624	if (defined $DATA[$set][$idx]) {
		3625	$cb->($DATA[$set][$idx]);
		3626	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3627	my $size = $SIZE[$set][$idx];
		3628	my $buf;
		3629	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3630	if ($_[0] == $size) {
		3631	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3632	$cb->($buf);
		3633	} else {
		3634	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3635	}
		3636	};
		3637	} else {
		3638	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3639	}
		3640	}
		3641
		3642	# rather ineffient
		3643	sub cf::face::get_data($;$) {
		3644	my ($idx, $set) = @_;
		3645
		3646	_get_data $idx, $set, Coro::rouse_cb;
		3647	Coro::rouse_wait
		3648	}
		3649
		3650	sub cf::face::ix {
		3651	my ($ns, $set, $idx, $pri) = @_;
		3652
		3653	_get_data $idx, $set, sub {
		3654	$ns->ix_send ($idx, $pri, $_[0]);
		3655	};
		3656	}
		3657	}
		3658
2272	sub load_faces {	3659	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	3660	my ($path) = @_;
2274		3661
		3662	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3663
2275	warn "loading faces from $path\n";	3664	trace "loading facedata from $path\n";
2276		3665
2277	my $faces;	3666	my $facedata = decode_storable load_file "$path/faceinfo";
2278	0 < aio_load $path, $faces
2279	or die "$path: $!";
2280		3667
2281	Coro::cede;	3668	$facedata->{version} == 2
2282	$faces = Storable::thaw $faces;	3669	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
2283	Coro::cede;
2284		3670
2285	while (my ($face, $info) = each %$faces) {	3671	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3672	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3673
		3674	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3675
		3676	# BEGIN ATOMIC
		3677	# from here on, everything must be atomic - no thread switch allowed
		3678	my $t1 = EV::time;
		3679
		3680	{
		3681	my $faces = $facedata->{faceinfo};
		3682
		3683	for my $face (sort keys %$faces) {
		3684	my $info = $faces->{$face};
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3685	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3686
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3687	cf::face::set_visibility $idx, $info->{visibility};
2289	Coro::cede;	3688	cf::face::set_magicmap $idx, $info->{magicmap};
		3689	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3690	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3691	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3692	$cf::face::HASH{$info->{hash64}} = $idx;
		3693	delete $cf::face::META[$idx];
		3694	}
		3695
		3696	while (my ($face, $info) = each %$faces) {
		3697	next unless $info->{smooth};
		3698
		3699	my $idx = cf::face::find $face
		3700	or next;
		3701
		3702	if (my $smooth = cf::face::find $info->{smooth}) {
		3703	cf::face::set_smooth $idx, $smooth;
		3704	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3705	} else {
		3706	error "smooth face '$info->{smooth}' not found for face '$face'";
		3707	}
		3708	}
		3709	}
		3710
2290	}	3711	{
		3712	my $anims = $facedata->{animinfo};
		3713
		3714	while (my ($anim, $info) = each %$anims) {
		3715	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3716	}
		3717
		3718	cf::anim::invalidate_all; # d'oh
		3719	}
		3720
		3721	{
		3722	my $res = $facedata->{resource};
		3723
		3724	while (my ($name, $info) = each %$res) {
		3725	if (defined (my $type = $info->{type})) {
		3726	# TODO: different hash - must free and use new index, or cache ixface data queue
		3727	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3728
		3729	cf::face::set_type $idx, $type;
		3730	cf::face::set_csum $idx, 0, $info->{hash};
		3731	$cf::face::SIZE[0][$idx] = $info->{size};
		3732	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3733	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3734	$cf::face::HASH{$info->{hash}} = $idx;
		3735	} else {
		3736	# $RESOURCE{$name} = $info; # unused
		3737	}
		3738	}
		3739	}
		3740
		3741	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3742
		3743	# HACK to clear player env face cache, we need some signal framework
		3744	# for this (global event?)
		3745	%ext::player_env::MUSIC_FACE_CACHE = ();
		3746
		3747	# END ATOMIC
		3748
		3749	cf::debug "facedata atomic update time ", EV::time - $t1;
		3750
		3751	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3752
		3753	aio_close $fh if $fh; # close old facedata
2291		3754
2292	1	3755	1
2293	}	3756	}
2294		3757
		3758	register_exticmd fx_want => sub {
		3759	my ($ns, $want) = @_;
		3760
		3761	while (my ($k, $v) = each %$want) {
		3762	$ns->fx_want ($k, $v);
		3763	}
		3764	};
		3765
		3766	sub load_resource_file($) {
		3767	my $guard = lock_acquire "load_resource_file";
		3768
		3769	my $status = load_resource_file_ $_[0];
		3770	get_slot 0.1, 100;
		3771	cf::arch::commit_load;
		3772
		3773	$status
		3774	}
		3775
		3776	sub reload_exp_table {
		3777	_reload_exp_table;
		3778
		3779	cf::face::set
		3780	"res/exp_table" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3783	);
		3784	}
		3785
		3786	sub reload_materials {
		3787	_reload_materials;
		3788	}
		3789
		3790	sub reload_regions {
		3791	# HACK to clear player env face cache, we need some signal framework
		3792	# for this (global event?)
		3793	%ext::player_env::MUSIC_FACE_CACHE = ();
		3794
		3795	load_resource_file "$MAPDIR/regions"
		3796	or die "unable to load regions file\n";
		3797
		3798	for (cf::region::list) {
		3799	$_->{match} = qr/$_->{match}/
		3800	if exists $_->{match};
		3801	}
		3802	}
		3803
		3804	sub reload_facedata {
		3805	load_facedata $DATADIR
		3806	or die "unable to load facedata\n";
		3807	}
		3808
		3809	sub reload_archetypes {
		3810	load_resource_file "$DATADIR/archetypes"
		3811	or die "unable to load archetypes\n";
		3812
		3813	cf::face::set
		3814	"res/skill_info" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3817	);
		3818
		3819	cf::face::set
		3820	"res/spell_paths" => FT_RSRC,
		3821	JSON::XS->new->utf8->canonical->encode (
		3822	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3823	);
		3824
		3825	# command completion
		3826	my @commands;
		3827
		3828	for (0..cf::arch::skillvec_size - 1) {
		3829	my $skill = cf::arch::skillvec $_;
		3830	my $name = $skill->name;
		3831	my $flags = cf::skill_flags $skill->subtype;
		3832
		3833	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3834	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3835	}
		3836
		3837	cf::client::set_command_face skill => \@commands;
		3838	}
		3839
		3840	sub reload_treasures {
		3841	load_resource_file "$DATADIR/treasures"
		3842	or die "unable to load treasurelists\n";
		3843	}
		3844
		3845	sub reload_sound {
		3846	trace "loading sound config from $DATADIR/sound\n";
		3847
		3848	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3849
		3850	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3851	my $sound = $soundconf->{compat}[$_]
		3852	or next;
		3853
		3854	my $face = cf::face::find "sound/$sound->[1]";
		3855	cf::sound::set $sound->[0] => $face;
		3856	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3857	}
		3858
		3859	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3860	my $face = cf::face::find "sound/$v";
		3861	cf::sound::set $k => $face;
		3862	}
		3863	}
		3864
2295	sub reload_resources {	3865	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3866	trace "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	3867
		3868	reload_materials;
2298	load_faces	3869	reload_facedata;
2299	or die "unable to load faces\n";#d#	3870	reload_exp_table;
2300	}	3871	reload_sound;
2301		3872	reload_archetypes;
2302	sub init {
2303	reload_resources;	3873	reload_regions;
2304	}	3874	reload_treasures;
2305		3875
2306	sub cfg_load {	3876	trace "finished reloading resource files\n";
2307	open my $fh, "<:utf8", cf::confdir . "/config"	3877	}
2308	or return;
2309		3878
2310	local $/;	3879	sub reload_config {
2311	*CFG = YAML::Syck::Load <$fh>;	3880	trace "reloading config file...\n";
2312		3881
		3882	my $config = load_file "$CONFDIR/config";
		3883	utf8::decode $config;
		3884	*CFG = decode_yaml $config;
		3885
2313	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3886	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2314		3887
2315	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3888	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2316	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3889	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2317		3890
2318	if (exists $CFG{mlockall}) {	3891	if (exists $CFG{mlockall}) {
…		…
2322	};	3895	};
2323	warn $@ if $@;	3896	warn $@ if $@;
2324	}	3897	}
2325	}	3898	}
2326		3899
		3900	sub pidfile() {
		3901	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3902	or die "$PIDFILE: $!";
		3903	flock $fh, &Fcntl::LOCK_EX
		3904	or die "$PIDFILE: flock: $!";
		3905	$fh
		3906	}
		3907
		3908	# make sure only one server instance is running at any one time
		3909	sub atomic {
		3910	my $fh = pidfile;
		3911
		3912	my $pid = <$fh>;
		3913	kill 9, $pid if $pid > 0;
		3914
		3915	seek $fh, 0, 0;
		3916	print $fh $$;
		3917	}
		3918
		3919	sub main_loop {
		3920	trace "EV::run starting\n";
		3921	if (1) {
		3922	EV::run;
		3923	}
		3924	trace "EV::run returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
		3927
2327	sub main {	3928	sub main {
		3929	cf::init_globals; # initialise logging
		3930
		3931	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3932	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3933	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3934	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3935
		3936	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3937
2328	# we must not ever block the main coroutine	3938	# we must not ever block the main coroutine
2329	local $Coro::idle = sub {	3939	$Coro::idle = sub {
2330	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3940	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2331	(async {	3941	(async {
2332	Event::one_event;	3942	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3943	EV::run EV::RUN_ONESHOT;
2333	})->prio (Coro::PRIO_MAX);	3944	})->prio (Coro::PRIO_MAX);
2334	};	3945	};
2335		3946
2336	cfg_load;	3947	evthread_start IO::AIO::poll_fileno;
		3948
		3949	cf::sync_job {
		3950	cf::incloader::init ();
		3951
2337	db_init;	3952	db_init;
		3953
		3954	cf::init_anim;
		3955	cf::init_attackmess;
		3956	cf::init_dynamic;
		3957
		3958	cf::load_settings;
		3959
		3960	reload_resources;
		3961	reload_config;
		3962
		3963	cf::init_uuid;
		3964	cf::init_signals;
		3965	cf::init_skills;
		3966
		3967	cf::init_beforeplay;
		3968
		3969	atomic;
		3970
2338	load_extensions;	3971	load_extensions;
2339		3972
2340	$TICK_WATCHER->start;	3973	utime time, time, $RUNTIMEFILE;
2341	Event::loop;	3974
		3975	# no (long-running) fork's whatsoever before this point(!)
		3976	use POSIX ();
		3977	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3978
		3979	cf::_post_init 0;
		3980	};
		3981
		3982	cf::object::thawer::errors_are_fatal 0;
		3983	info "parse errors in files are no longer fatal from this point on.\n";
		3984
		3985	AE::postpone {
		3986	undef &main; # free gobs of memory :)
		3987	};
		3988
		3989	goto &main_loop;
2342	}	3990	}
2343		3991
2344	#############################################################################	3992	#############################################################################
2345	# initialisation and cleanup	3993	# initialisation and cleanup
2346		3994
2347	# install some emergency cleanup handlers	3995	# install some emergency cleanup handlers
2348	BEGIN {	3996	BEGIN {
		3997	our %SIGWATCHER = ();
2349	for my $signal (qw(INT HUP TERM)) {	3998	for my $signal (qw(INT HUP TERM)) {
2350	Event->signal (	3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2351	reentrant => 0,
2352	data => WF_AUTOCANCEL,
2353	signal => $signal,
2354	prio => 0,
2355	cb => sub {
2356	cf::cleanup "SIG$signal";	4000	cf::cleanup "SIG$signal";
2357	},
2358	);	4001	};
		4002	}
		4003	}
		4004
		4005	sub write_runtime_sync {
		4006	my $t0 = AE::time;
		4007
		4008	# first touch the runtime file to show we are still running:
		4009	# the fsync below can take a very very long time.
		4010
		4011	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4012
		4013	my $guard = cf::lock_acquire "write_runtime";
		4014
		4015	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4016	or return;
		4017
		4018	my $value = $cf::RUNTIME + 90 + 10;
		4019	# 10 is the runtime save interval, for a monotonic clock
		4020	# 60 allows for the watchdog to kill the server.
		4021
		4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4023	and return;
		4024
		4025	# always fsync - this file is important
		4026	aio_fsync $fh
		4027	and return;
		4028
		4029	# touch it again to show we are up-to-date
		4030	aio_utime $fh, undef, undef;
		4031
		4032	close $fh
		4033	or return;
		4034
		4035	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4036	and return;
		4037
		4038	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4039
2359	}	4040	1
		4041	}
		4042
		4043	our $uuid_lock;
		4044	our $uuid_skip;
		4045
		4046	sub write_uuid_sync($) {
		4047	$uuid_skip ||= $_[0];
		4048
		4049	return if $uuid_lock;
		4050	local $uuid_lock = 1;
		4051
		4052	my $uuid = "$LOCALDIR/uuid";
		4053
		4054	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4055	or return;
		4056
		4057	my $value = uuid_seq uuid_cur;
		4058
		4059	unless ($value) {
		4060	info "cowardly refusing to write zero uuid value!\n";
		4061	return;
		4062	}
		4063
		4064	my $value = uuid_str $value + $uuid_skip;
		4065	$uuid_skip = 0;
		4066
		4067	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4068	and return;
		4069
		4070	# always fsync - this file is important
		4071	aio_fsync $fh
		4072	and return;
		4073
		4074	close $fh
		4075	or return;
		4076
		4077	aio_rename "$uuid~", $uuid
		4078	and return;
		4079
		4080	trace "uuid file written ($value).\n";
		4081
		4082	1
		4083
		4084	}
		4085
		4086	sub write_uuid($$) {
		4087	my ($skip, $sync) = @_;
		4088
		4089	$sync ? write_uuid_sync $skip
		4090	: async { write_uuid_sync $skip };
2360	}	4091	}
2361		4092
2362	sub emergency_save() {	4093	sub emergency_save() {
2363	my $freeze_guard = cf::freeze_mainloop;	4094	my $freeze_guard = cf::freeze_mainloop;
2364		4095
2365	warn "enter emergency perl save\n";	4096	info "emergency_perl_save: enter\n";
		4097
		4098	# this is a trade-off: we want to be very quick here, so
		4099	# save all maps without fsync, and later call a global sync
		4100	# (which in turn might be very very slow)
		4101	local $USE_FSYNC = 0;
2366		4102
2367	cf::sync_job {	4103	cf::sync_job {
		4104	cf::write_runtime_sync; # external watchdog should not bark
		4105
2368	# use a peculiar iteration method to avoid tripping on perl	4106	# use a peculiar iteration method to avoid tripping on perl
2369	# refcount bugs in for. also avoids problems with players	4107	# refcount bugs in for. also avoids problems with players
2370	# and maps saved/destroyed asynchronously.	4108	# and maps saved/destroyed asynchronously.
2371	warn "begin emergency player save\n";	4109	info "emergency_perl_save: begin player save\n";
2372	for my $login (keys %cf::PLAYER) {	4110	for my $login (keys %cf::PLAYER) {
2373	my $pl = $cf::PLAYER{$login} or next;	4111	my $pl = $cf::PLAYER{$login} or next;
2374	$pl->valid or next;	4112	$pl->valid or next;
		4113	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2375	$pl->save;	4114	$pl->save;
2376	}	4115	}
2377	warn "end emergency player save\n";	4116	info "emergency_perl_save: end player save\n";
2378		4117
2379	warn "begin emergency map save\n";	4118	cf::write_runtime_sync; # external watchdog should not bark
		4119
		4120	info "emergency_perl_save: begin map save\n";
2380	for my $path (keys %cf::MAP) {	4121	for my $path (keys %cf::MAP) {
2381	my $map = $cf::MAP{$path} or next;	4122	my $map = $cf::MAP{$path} or next;
2382	$map->valid or next;	4123	$map->valid or next;
2383	$map->save;	4124	$map->save;
2384	}	4125	}
2385	warn "end emergency map save\n";	4126	info "emergency_perl_save: end map save\n";
2386		4127
2387	warn "begin emergency database checkpoint\n";	4128	cf::write_runtime_sync; # external watchdog should not bark
		4129
		4130	info "emergency_perl_save: begin database checkpoint\n";
2388	BDB::db_env_txn_checkpoint $DB_ENV;	4131	BDB::db_env_txn_checkpoint $DB_ENV;
2389	warn "end emergency database checkpoint\n";	4132	info "emergency_perl_save: end database checkpoint\n";
		4133
		4134	info "emergency_perl_save: begin write uuid\n";
		4135	write_uuid_sync 1;
		4136	info "emergency_perl_save: end write uuid\n";
		4137
		4138	cf::write_runtime_sync; # external watchdog should not bark
		4139
		4140	trace "emergency_perl_save: syncing database to disk";
		4141	BDB::db_env_txn_checkpoint $DB_ENV;
		4142
		4143	info "emergency_perl_save: starting sync\n";
		4144	IO::AIO::aio_sync sub {
		4145	info "emergency_perl_save: finished sync\n";
		4146	};
		4147
		4148	cf::write_runtime_sync; # external watchdog should not bark
		4149
		4150	trace "emergency_perl_save: flushing outstanding aio requests";
		4151	while (IO::AIO::nreqs || BDB::nreqs) {
		4152	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4153	}
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
2390	};	4156	};
2391		4157
2392	warn "leave emergency perl save\n";	4158	info "emergency_perl_save: leave\n";
2393	}	4159	}
2394		4160
2395	sub post_cleanup {	4161	sub post_cleanup {
2396	my ($make_core) = @_;	4162	my ($make_core) = @_;
2397		4163
		4164	IO::AIO::flush;
		4165
2398	warn Carp::longmess "post_cleanup backtrace"	4166	error Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	4167	if $make_core;
2400	}
2401		4168
		4169	my $fh = pidfile;
		4170	unlink $PIDFILE if <$fh> == $$;
		4171	}
		4172
		4173	# a safer delete_package, copied from Symbol
		4174	sub clear_package($) {
		4175	my $pkg = shift;
		4176
		4177	# expand to full symbol table name if needed
		4178	unless ($pkg =~ /^main::.*::$/) {
		4179	$pkg = "main$pkg" if $pkg =~ /^::/;
		4180	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4181	$pkg .= '::' unless $pkg =~ /::$/;
		4182	}
		4183
		4184	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4185	my $stem_symtab = *{$stem}{HASH};
		4186
		4187	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4188	or return;
		4189
		4190	# clear all symbols
		4191	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4192	for my $name (keys %$leaf_symtab) {
		4193	_gv_clear *{"$pkg$name"};
		4194	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4195	}
		4196	}
		4197
2402	sub reload() {	4198	sub do_reload_perl() {
2403	# can/must only be called in main	4199	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	4200	unless (in_main) {
2405	warn "can only reload from main coroutine";	4201	error "can only reload from main coroutine";
2406	return;	4202	return;
2407	}	4203	}
2408		4204
2409	warn "reloading...";	4205	return if $RELOAD++;
2410		4206
2411	warn "entering sync_job";	4207	my $t1 = AE::time;
2412		4208
		4209	while ($RELOAD) {
		4210	cf::get_slot 0.1, -1, "reload_perl";
		4211	info "perl_reload: reloading...";
		4212
		4213	trace "perl_reload: entering sync_job";
		4214
2413	cf::sync_job {	4215	cf::sync_job {
2414	cf::write_runtime; # external watchdog should not bark
2415	cf::emergency_save;	4216	#cf::emergency_save;
2416	cf::write_runtime; # external watchdog should not bark
2417		4217
2418	warn "syncing database to disk";
2419	BDB::db_env_txn_checkpoint $DB_ENV;
2420
2421	# if anything goes wrong in here, we should simply crash as we already saved
2422
2423	warn "cancelling all WF_AUTOCANCEL watchers";
2424	for (Event::all_watchers) {
2425	$_->cancel if $_->data & WF_AUTOCANCEL;
2426	}
2427
2428	warn "flushing outstanding aio requests";
2429	for (;;) {
2430	BDB::flush;
2431	IO::AIO::flush;
2432	Coro::cede;
2433	last unless IO::AIO::nreqs || BDB::nreqs;
2434	warn "iterate...";
2435	}
2436
2437	++$RELOAD;
2438
2439	warn "cancelling all extension coros";	4218	trace "perl_reload: cancelling all extension coros";
2440	$_->cancel for values %EXT_CORO;	4219	$_->cancel for values %EXT_CORO;
2441	%EXT_CORO = ();	4220	%EXT_CORO = ();
2442		4221
2443	warn "removing commands";	4222	trace "perl_reload: removing commands";
2444	%COMMAND = ();	4223	%COMMAND = ();
2445		4224
2446	warn "removing ext commands";	4225	trace "perl_reload: removing ext/exti commands";
2447	%EXTCMD = ();	4226	%EXTCMD = ();
		4227	%EXTICMD = ();
2448		4228
2449	warn "unloading/nuking all extensions";	4229	trace "perl_reload: unloading/nuking all extensions";
2450	for my $pkg (@EXTS) {	4230	for my $pkg (@EXTS) {
2451	warn "... unloading $pkg";	4231	trace "... unloading $pkg";
2452		4232
2453	if (my $cb = $pkg->can ("unload")) {	4233	if (my $cb = $pkg->can ("unload")) {
2454	eval {	4234	eval {
2455	$cb->($pkg);	4235	$cb->($pkg);
2456	1	4236	1
2457	} or warn "$pkg unloaded, but with errors: $@";	4237	} or error "$pkg unloaded, but with errors: $@";
		4238	}
		4239
		4240	trace "... clearing $pkg";
		4241	clear_package $pkg;
2458	}	4242	}
2459		4243
2460	warn "... nuking $pkg";
2461	Symbol::delete_package $pkg;
2462	}
2463
2464	warn "unloading all perl modules loaded from $LIBDIR";	4244	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2465	while (my ($k, $v) = each %INC) {	4245	while (my ($k, $v) = each %INC) {
2466	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2467		4247
2468	warn "... unloading $k";	4248	trace "... unloading $k";
2469	delete $INC{$k};	4249	delete $INC{$k};
2470		4250
2471	$k =~ s/\.pm$//;	4251	$k =~ s/\.pm$//;
2472	$k =~ s/\//::/g;	4252	$k =~ s/\//::/g;
2473		4253
2474	if (my $cb = $k->can ("unload_module")) {	4254	if (my $cb = $k->can ("unload_module")) {
2475	$cb->();	4255	$cb->();
		4256	}
		4257
		4258	clear_package $k;
2476	}	4259	}
2477		4260
2478	Symbol::delete_package $k;
2479	}
2480
2481	warn "getting rid of safe::, as good as possible";	4261	trace "perl_reload: getting rid of safe::, as good as possible";
2482	Symbol::delete_package "safe::$_"	4262	clear_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4263	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		4264
2485	warn "unloading cf.pm \"a bit\"";	4265	trace "perl_reload: unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	4266	delete $INC{"cf.pm"};
		4267	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2487		4268
2488	# don't, removes xs symbols, too,	4269	# don't, removes xs symbols, too,
2489	# and global variables created in xs	4270	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	4271	#clear_package __PACKAGE__;
2491		4272
2492	warn "unload completed, starting to reload now";	4273	info "perl_reload: unload completed, starting to reload now";
2493		4274
2494	warn "reloading cf.pm";	4275	trace "perl_reload: reloading cf.pm";
2495	require cf;	4276	require cf;
2496	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4277	cf::_connect_to_perl_1;
2497		4278
2498	warn "loading config and database again";	4279	trace "perl_reload: loading config and database again";
2499	cf::cfg_load;	4280	cf::reload_config;
2500		4281
2501	warn "loading extensions";	4282	trace "perl_reload: loading extensions";
2502	cf::load_extensions;	4283	cf::load_extensions;
2503		4284
		4285	if ($REATTACH_ON_RELOAD) {
2504	warn "reattaching attachments to objects/players";	4286	trace "perl_reload: reattaching attachments to objects/players";
2505	_global_reattach; # objects, sockets	4287	_global_reattach; # objects, sockets
2506	warn "reattaching attachments to maps";	4288	trace "perl_reload: reattaching attachments to maps";
2507	reattach $_ for values %MAP;	4289	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	4290	trace "perl_reload: reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	4291	reattach $_ for values %PLAYER;
		4292	}
2510		4293
2511	warn "loading reloadable resources";	4294	cf::_post_init 1;
2512	reload_resources;
2513		4295
2514	warn "leaving sync_job";	4296	trace "perl_reload: leaving sync_job";
2515		4297
2516	1	4298	1
2517	} or do {	4299	} or do {
2518	warn $@;	4300	error $@;
2519	warn "error while reloading, exiting.";	4301	cf::cleanup "perl_reload: error, exiting.";
2520	exit 1;	4302	};
		4303
		4304	--$RELOAD;
		4305	}
		4306
		4307	$t1 = AE::time - $t1;
		4308	info "perl_reload: completed in ${t1}s\n";
		4309	};
		4310
		4311	our $RELOAD_WATCHER; # used only during reload
		4312
		4313	sub reload_perl() {
		4314	# doing reload synchronously and two reloads happen back-to-back,
		4315	# coro crashes during coro_state_free->destroy here.
		4316
		4317	$RELOAD_WATCHER ||= cf::async {
		4318	Coro::AIO::aio_wait cache_extensions;
		4319
		4320	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4321	do_reload_perl;
		4322	undef $RELOAD_WATCHER;
		4323	};
2521	};	4324	};
2522		4325	}
2523	warn "reloaded";
2524	};
2525
2526	our $RELOAD_WATCHER; # used only during reload
2527		4326
2528	register_command "reload" => sub {	4327	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	4328	my ($who, $arg) = @_;
2530		4329
2531	if ($who->flag (FLAG_WIZ)) {	4330	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	4331	$who->message ("reloading server.");
2533		4332	async {
2534	# doing reload synchronously and two reloads happen back-to-back,	4333	$Coro::current->{desc} = "perl_reload";
2535	# coro crashes during coro_state_free->destroy here.
2536
2537	$RELOAD_WATCHER ||= Event->timer (
2538	reentrant => 0,
2539	after => 0,
2540	data => WF_AUTOCANCEL,
2541	cb => sub {
2542	reload;	4334	reload_perl;
2543	undef $RELOAD_WATCHER;
2544	},
2545	);	4335	};
2546	}	4336	}
2547	};	4337	};
2548		4338
2549	unshift @INC, $LIBDIR;	4339	#############################################################################
2550		4340
2551	my $bug_warning = 0;	4341	my $bug_warning = 0;
2552		4342
2553	$TICK_WATCHER = Event->timer (	4343	sub wait_for_tick() {
2554	reentrant => 0,	4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2555	parked => 1,	4345
2556	prio => 0,	4346	$WAIT_FOR_TICK->wait;
2557	at => $NEXT_TICK || $TICK,	4347	}
2558	data => WF_AUTOCANCEL,	4348
2559	cb => sub {	4349	sub wait_for_tick_begin() {
		4350	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4351
		4352	my $signal = new Coro::Signal;
		4353	push @WAIT_FOR_TICK_BEGIN, $signal;
		4354	$signal->wait;
		4355	}
		4356
		4357	sub tick {
2560	if ($Coro::current != $Coro::main) {	4358	if ($Coro::current != $Coro::main) {
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4359	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	4360	unless ++$bug_warning > 10;
2563	return;	4361	return;
2564	}	4362	}
2565		4363
2566	$NOW = Event::time;	4364	cf::one_tick; # one server iteration
2567		4365
2568	cf::server_tick; # one server iteration	4366	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2569	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;
2571		4367
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4368	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	4369	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2574	Coro::async_pool {	4370	Coro::async_pool {
		4371	$Coro::current->{desc} = "runtime saver";
2575	write_runtime	4372	write_runtime_sync
2576	or warn "ERROR: unable to write runtime file: $!";	4373	or error "ERROR: unable to write runtime file: $!";
2577	};
2578	}	4374	};
		4375	}
2579		4376
		4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4378	$sig->send;
		4379	}
2580	$WAIT_FOR_TICK->broadcast;	4380	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582		4381
2583	# my $AFTER = Event::time;	4382	$LOAD = ($NOW - $TICK_START) / $TICK;
2584	# warn $AFTER - $NOW;#d#	4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2585		4384
2586	# if we are delayed by four ticks or more, skip them all	4385	if (0) {
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4386	if ($NEXT_TICK) {
2588		4387	my $jitter = $TICK_START - $NEXT_TICK;
2589	$TICK_WATCHER->at ($NEXT_TICK);	4388	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2590	$TICK_WATCHER->start;	4389	debug "jitter $JITTER\n";#d#
		4390	}
2591	},	4391	}
2592	);	4392	}
2593		4393
2594	{	4394	{
2595	BDB::max_poll_time $TICK * 0.1;	4395	# configure BDB
2596	$BDB_POLL_WATCHER = Event->io (	4396	info "initialising database";
2597	reentrant => 0,	4397
2598	fd => BDB::poll_fileno,
2599	poll => 'r',
2600	prio => 0,
2601	data => WF_AUTOCANCEL,
2602	cb => \&BDB::poll_cb,
2603	);
2604	BDB::min_parallel 8;	4398	BDB::min_parallel 16;
2605		4399	BDB::max_poll_reqs $TICK * 0.1;
2606	BDB::set_sync_prepare {	4400	#$AnyEvent::BDB::WATCHER->priority (1);
2607	my $status;
2608	my $current = $Coro::current;
2609	(
2610	sub {
2611	$status = $!;
2612	$current->ready; undef $current;
2613	},
2614	sub {
2615	Coro::schedule while defined $current;
2616	$! = $status;
2617	},
2618	)
2619	};
2620		4401
2621	unless ($DB_ENV) {	4402	unless ($DB_ENV) {
2622	$DB_ENV = BDB::db_env_create;	4403	$DB_ENV = BDB::db_env_create;
		4404	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4405	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4406	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4407	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4408	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2623		4409
2624	cf::sync_job {	4410	cf::sync_job {
2625	eval {	4411	eval {
2626	BDB::db_env_open	4412	BDB::db_env_open
2627	$DB_ENV,	4413	$DB_ENV,
2628	$BDB_ENV_DIR,	4414	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4415	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4416	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	4417	0666;
2632		4418
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4419	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;
2637	};	4420	};
2638		4421
2639	cf::cleanup "db_env_open(db): $@" if $@;	4422	cf::cleanup "db_env_open(db): $@" if $@;
2640	};	4423	};
2641	}	4424	}
		4425
		4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4428	};
		4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4431	};
		4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
		4435
		4436	info "database initialised";
2642	}	4437	}
2643		4438
2644	{	4439	{
		4440	# configure IO::AIO
		4441
		4442	info "initialising aio";
2645	IO::AIO::min_parallel 8;	4443	IO::AIO::min_parallel 8;
2646
2647	undef $Coro::AIO::WATCHER;
2648	IO::AIO::max_poll_time $TICK * 0.1;	4444	IO::AIO::max_poll_time $TICK * 0.1;
2649	$AIO_POLL_WATCHER = Event->io (	4445	undef $AnyEvent::AIO::WATCHER;
2650	reentrant => 0,	4446	info "aio initialised";
2651	data => WF_AUTOCANCEL,
2652	fd => IO::AIO::poll_fileno,
2653	poll => 'r',
2654	prio => 6,
2655	cb => \&IO::AIO::poll_cb,
2656	);
2657	}	4447	}
		4448
		4449	our $_log_backtrace;
		4450	our $_log_backtrace_last;
		4451
		4452	sub _log_backtrace {
		4453	my ($msg, @addr) = @_;
		4454
		4455	$msg =~ s/\n$//;
		4456
		4457	if ($_log_backtrace_last eq $msg) {
		4458	LOG llevInfo, "[ABT] $msg\n";
		4459	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4460	# limit the # of concurrent backtraces
		4461	} elsif ($_log_backtrace < 2) {
		4462	$_log_backtrace_last = $msg;
		4463	++$_log_backtrace;
		4464	my $perl_bt = Carp::longmess $msg;
		4465	async {
		4466	$Coro::current->{desc} = "abt $msg";
		4467
		4468	my @bt = fork_call {
		4469	@addr = map { sprintf "%x", $_ } @addr;
		4470	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4471	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4472	or die "addr2line: $!";
		4473
		4474	my @funcs;
		4475	my @res = <$fh>;
		4476	chomp for @res;
		4477	while (@res) {
		4478	my ($func, $line) = splice @res, 0, 2, ();
		4479	push @funcs, "[$func] $line";
		4480	}
		4481
		4482	@funcs
		4483	};
		4484
		4485	LOG llevInfo, "[ABT] $perl_bt\n";
		4486	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4487	LOG llevInfo, "[ABT] $_\n" for @bt;
		4488	--$_log_backtrace;
		4489	};
		4490	} else {
		4491	LOG llevInfo, "[ABT] $msg\n";
		4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4493	}
		4494	}
		4495
		4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
2658		4499
2659	END { cf::emergency_save }	4500	END { cf::emergency_save }
2660		4501
2661	1	4502	1
2662		4503

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